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r1518x series 1 a 36v input low supply current ldo no.ea ? 329 ? 170112 1 outline r1518x is a cmos-based ldo that specifically des igned for automotive applications featuring 1 a output current and 36 v input voltage. in addition to a conventi onal regulator circuit, r1518x consists of a constant slope circuit as a soft-start function, a fold-back prot ection circuit, a short current limit circuit, and a thermal shutdown circuit. besides the low supply cu rrent by cmos, the operating temperature is ? 40c to 105c and the maximum input voltage is 36 v, the r1518x is ve ry suitable for power source of car accessories. r1518x is available in r1518xxxxb/d/e/f with the in ternally fixed output voltag e, and r1518xxxxd/f with the auto-discharge function at standby. r1518x001c can adjust the output voltage with an external resistor . r1518xxxxb/c/d inter nally fixes the soft- start time at 120 s (typ). r1518xxxxe/f can adjust the soft-start time with an external capacitor. r1518x is available in two packages for ul tra high wattage: hsop-6j and to-252-5-p2. features input voltage range (maximum rati ng) 3.5 v to 36.0 v (50.0v) operating temper ature range ? 40c to 105c supply current typ. 18 a standby curr ent typ. 0.1 a dropout voltage typ. 0.7 v (i out = 1 a, v out = 5.0 v) output voltage ac curacy 0.8% (v out 5.0 v) line regulation typ. 0.01%/v packages hsop-6 j, to-252-5-p2 output voltage rang e r1 518xxxxb/d/e/f: 2.5v/3.3v/3.4v/5.0v/6.0v/8.5v *contact ricoh sales represent atives for other voltages. r1518x001c: adjustable from 2.5 v to 12.0 v with external resistor feedback voltage: 2.5 v built-in short current limi t circuit typ. 150 ma built-in fold-back protec tion circuit min. 1a built-in thermal shutdown circuit typ. 160c ? built-in soft-start circuit typ.120 s ? ??????????????????????????????????????????????????????????????? ???????????????????????????? r1518xxxxe/f: adjustable time setting with external ? capacitors. ? ceramic capacitors c an be used r1518 xxxxb/d/e/f: 0.1 f or more ? r1518x001c: 1.0 f or more ? ? ? ?
r1518x no.ea ? 329 ? 170112 2 applications ? power source for home appliances such as refri gerators, rice cookers, electric water warmers. ? power source for notebook pcs, digital tvs, telephones, private lan systems. ? power source for office equipment such as copi ers, printers, facsimiles, scanners, and projectors block diagrams r1518xxxxb v dd v out ce gnd vref internal vr soft start current limit thermal shutdown r1518x001c v dd v out ce gnd vref internal vr v fb soft start current limit thermal shutdown r1518xxxxd v dd v out ce gnd vref internal vr soft start current limit thermal shutdown r1518xxxxe v dd v out ce gnd vref internal vr delay soft start current limit thermal shutdown r1518xxxxf v dd v out ce gnd vref internal vr delay soft start current limit thermal shutdown
r1518x no.ea ? 329 ? 170112 3 selection guide the output voltage, version, and package type for this device can be selected at the user?s request. product name package quantity per reel pb free halogen free r1518sxx1 ? -e2-fe hsop-6j 1,000 pcs yes yes r1518jxx1 ? -t1-fe to-252-5-p2 3,000 pcs yes yes xx: specify the set output voltage (v set ) 2.5 v (25) / 3.3 v (33) / 3.4 v (34) / 5.0 v (50) / 6.0 v (60) / 8.5 v (85) note: contact ricoh sales representatives for other voltages. adjustable output voltage setting type is fixed to (00) note: r1518x001c-t1-#e only support ? ? ?? ?? specify the version with desired functions b: no auto-discharge function c: no auto-discharge function / adjustable output voltage setting d: auto-discharge function e: no auto-discharge function / adjustable soft-start time setting f: auto-discharge function / adju stable soft-start time setting auto-discharge function quickly lowers the output voltage to 0 v by releasing the electrical charge in the external capacitor when the chip enable signal is switc hed from the active mode to the standby mode.
r1518x no.ea ? 329 ? 170112 4 pin description 1 3 6 4 2 5 1234 5 * 1 hsop-6j to-252-5-p2 hsop-6j pin no. symbol description 1 v dd input pin 2 gnd ground pin 3 nc no connection r1518sxxxb/d v fb feedback pin r1518s001c delay adjustable soft-start time pin r1518sxxxe/f 4 ce chip enable pin, active-high 5 gnd ground pin 6 v out output pin ? to-252-5-p2 pin no. symbol description 1 v dd input pin 2 nc no connection r1518jxx1b/d v fb feedback pin r1518j001c delay adjustable soft-star t time pin r1518jxx1e/f 3 gnd ground pin 4 ce chip enable pin, active-high 5 v out output pin *1 the tab on the bottom of the package enhances thermal performance and is electrically connected to gnd (substrate level). the tab is recommended to connect to the ground plane on the board. otherwise it may be left floating.
r1518x no.ea ? 329 ? 170112 5 pin equivalent circuit diagrams v out driver ce v out pin ce pin delay internal vr v fb delay pin (r1518xxxxe/f) v fb pin (r1518x001c)
r1518x no.ea ? 329 ? 170112 6 absolute maxmum ratings symbol item rating unit v in input voltage ? 0.3 to 50 v v in peak input voltage *1 60 v v ce input voltage (ce pin) ? 0.3 to 50 v v fb input voltage (v fb pin) ? 0.3 to 50 v v out output voltage ? 0.3 to v in + 0.3 50 v p d power dissipation (hsop-6j) *2 standard land pattern 1700 mw ultra high wattage land pattern 2700 power dissipation (to-252-5-p2) *2 standard land pattern 1900 ultra high wattage land pattern 3800 ta operating temperature range ? 40 to 105 c tstg storage temperature range ? 55 to 125 c *1 duration time = ? 200 ms *2 refer to package information for detailed information. absolute maximum ratings electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for both device and system using the device in the field. the functional operation at or ov er these absolute maximum ratings is not assured.
r1518x no.ea ? 329 ? 170112 7 electrical characteristics v in = v set + 1.0 v, i out = 1 ma, c in = c out = 0.1 ? f, unless otherwise noted. the specifications surrounded by are guaranteed by design engineering at -40c ta 105c. r1518xxxxb/d (ta = 25c) symbol item conditions min. typ. max. unit v in input voltage 3.5 36 v v out output voltage ta = 25c v set 5.0 v ? 0.992 ? 1.008 v v set > 5.0 v ? 0.99 ? 1.01 v ? 40c ta 105c v set 5.0 v ? 0.982 ? 1.018 v v set > 5.0 v ? 0.98 ? 1.02 v ? v out / ? i out load regulation v in = v set + 2.0 v 1ma i out 250 ma ? 15 3 25 mv v in = v set + 2.0 v 1ma i out 1 a ? 60 10 60 mv v dif dropout voltage i out = 1 a refer to the product-specific electrical characteristics i ss supply current i out = 0 ma 18 36 a istandby standby current v ce = 0 v 0.1 2.0 a ? v out / ? v in line regulation v set + 0.5 v v in 36 v, if v in 3.5 v 0.01 0.02 %/v ? v out / ? ta output voltage temperature coefficient ? 40c ta 105c 60 ppm /c i lim output current limit v in = v set +2.0 v 1 a i sc short current limit v out = 0 v 150 ma i pd ce pull-down current v ce = 5 v 0.2 0.6 a v ce = 36 v 0.5 1.3 a t d1 soft-start time 1 120 s v ceh ce input voltage "h" 2.2 v v cel ce input voltage "l" 1.0 v t tsd thermal shutdown temperature junction temperature 160 c t tsr thermal shutdown released temperature junction temperature 135 c r low low output nch tr. on resistance (r1518xxxxd) v in = 14.0 v, v ce = 0 v 3.2 k ? all test items listed under electrical characteri stics are done under the pulse load condition (tj ta = 25c) except for output voltage temperature coe fficient and soft-start time 1.
r1518x no.ea ? 329 ? 170112 8 v in = v set + 1.0 v, i out = 1 ma, c in = 0.1 ? f, c out = 1.0 ? f, unless otherwise noted. the specifications surrounded by are guaranteed by design engineering at -40c ta 105c. r1518x001c (ta = 25 ? c) symbol item conditions min. typ. max. unit v in input voltage 3.5 36 v v fb feedback voltage ta = 25c 2.480 2.520 v ? 40c ta 105c 2.455 2.545 v ? v out / ? i out load regulation v in = v set +2.0 v 1ma i out 250 ma ? 10 3 10 mv v in = v set +2.0 v 1 ma i out 1 a ? 25 5 35 mv v dif dropout voltage v set = v fb , i out = 1 a 1.0 1.8 v i ss supply current i out = 0 ma 18 36 a istandby standby current v ce = 0 v 0.1 2.0 a ? v out / ? v in line regulation v set = v fb , 3.5 v v in 36 v 0.01 0.02 %/v ? v out / ? ta output voltage temperature coefficient ? 40c ta 105c 60 ppm /c i lim output current limit v in = v set +2.0 v 1 a i sc short current limit v out = v fb = 0 v 150 ma i pd ce pull-down current v ce = 5 v 0.2 0.6 a v ce = 36 v 0.5 1.3 a t d1 soft-start time 1 120 s v ceh ce input voltage "h" 2.2 v v cel ce input voltage "l" 1.0 v t tsd thermal shutdown temperature junction temperature 160 c t tsr thermal shutdown released temperature junction temperature 135 c all test items listed under electrical characteri stics are done under the pulse load condition (tj ta = 25c) except for output voltage temperature coe fficient and soft-start time 1.
r1518x no.ea ? 329 ? 170112 9 v in = v set + 1.0 v, i out = 1 ma, c in = c out = 0.1 ? f, unless otherwise noted. the specifications surrounded by are guaranteed by design engineering at -40c ta 105c. r1518xxxxe/f (ta = 25 ? c) symbol item conditions min. typ. max. unit v in input voltage 3.5 36 v v out output voltage ta = 25c v set 5.0 v ? 0.992 ? 1.008 v v set > 5.0 v ? 0.99 ? 1.01 v ? 40c ta 105c v set 5.0 v ? 0.982 ? 1.018 v v set > 5.0 v ? 0.98 ? 1.02 v ? v out / ? i out load regulation v in = v set +2.0 v 1 ma i out 250 ma ? 15 3 25 mv v in = v set +2.0 v 1 ma i out 1 a ? 60 10 60 mv v dif dropout voltage i out = 1 a refer to the product-specific electrical characteristics i ss supply current i out = 0 ma 18 36 a istandby standby current v ce = 0 v 0.1 2.0 a ? v out / ? v in line regulation v set +0.5 v v in 36 v, if v in 3.5 v 0.01 0.02 %/v ? v out / ? ta output voltage temperature coefficient ? 40c ta 105c 60 ppm /c i lim output current limit v in = v set +2.0 v 1 a i sc short current limit v out = 0 v 150 ma i pd ce pull-down current v ce = 5 v 0.2 0.6 a v ce = 36 v 0.5 1.3 a i delay delay current delay = gnd 1.5 2.5 3.5 a t d1 soft-start time 1 delay = open 26 s t d2 soft-start time 2 delay = 0.001 ? ? all test items listed under electrical characteri stics are done under the pulse load condition (tj ta = 25c) except for output voltage temperature coefficient, so ft-start time 1, and soft-start time 2.
r1518x no.ea ? 329 ? 170112 10 the specifications surrounded by are guaranteed by design engineering at -40c ta 105c. r1518xxxxb/d/e/f product-specific electrical characteristics (ta = 25 ? c) product name v out [v] (ta = 25c) v out [v] ( ? 40 ? c ta 105 ? c) v dif [v] min. typ. max. min. typ. max. typ. max. r1518x251x 2.480 2.500 2.520 2.455 2.500 2.545 1.00 1.80 r1518x331x 3.274 3.300 3.326 3.241 3.300 3.359 0.90 1.60 r1518x341x 3.373 3.400 3.427 3.339 3.400 3.461 r1518x501x 4.960 5.000 5.040 4.910 5.000 5.090 0.70 1.30 r1518x601x 5.940 6.000 6.060 5.880 6.000 6.120 r1518x851x 8.415 8.500 8.585 8.330 8.500 8.670 0.65 1.10 recommended operating conditions (electrical characteristics) all of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. the semiconducto r devices cannot operate normally over the recommended operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. and the semiconductor dev ices may receive serious damage when they continue to operate over the recommended operating conditions.
r1518x no.ea ? 329 ? 170112 11 typical application r1518xxxxb/d v dd v out gnd c2 v out ce c1 ce control r1518xxxxb/d typical application r 2 r 1 r1518x001c gnd c2 v fb v dd ce c1 v out v out ce control r1518x001c typical application r1518jxx1e/f v dd v out delay gnd c2 ce c d c1 v out ce control r1518xxxxe/f typical application external components symbol description r1518xxxxb//d/e/f c1 (c in ) 0.1f (ceramic) c2 (c out ) 0.1f (ceramic) r1518x001c c1 (c in ) 0.1f (ceramic) c2 (c out ) 1.0f (ceramic)
r1518x no.ea ? 329 ? 170112 12 technical notes phase compensation in ldo regulators, phase compensation is provided to secure stable operation even when the load current is varied. for this purpose, use 0.1 f or more (r1 518xxxxb/d/e/f), 1.0 f or more (r1518x001c) of the capacitor c2. when using a tantalum type capacitor and the esr (equivalent series resistance) value is large, the output might be unstable. evaluate the circuit incl uding consideration of frequency characteristics. for the externally adjustable output voltage type (r1518x001c), use 10 k ? or lower resistance r2. pcb layout ensure the v dd and gnd lines are sufficiently robust. if their impedance is too high, noise pickup or unstable operation may result. connect 0.1 f or more of the capacitor c1 between the v dd and gnd, and as close as possible to the pins. in addition, connect the capacitor c2 between v out and gnd, and as close as possible to the pins.
r1518x no.ea ? 329 ? 170112 13 operation description thermal shutdown function thermal shutdown function is included in this device. if the junction temperature is more than or equal to 160c (typ.), the operation of the regulator would stop. after t hat, when the junction temperature is less than or equal to 135c (typ.), the operation of the regulator would restart. un less the cause of rising temperature is removed, the regulator repeats on and off, and output waveform would be like consecutive pulses. adjustable output voltage setting (r1518x001c) the output voltage of r1518x001c can be adjusted by using the external divider resistors (r1, r2). by using the following equation, the output voltage (v out ) can be determined. the voltage which is fixed inside the ic is described as v fb . v out = v fb x ((r1 + r2) / r2) recommended range: 2.5 v v out 12.0 v v fb = 2.5 v gnd v fb r ic r2 i ic i1 i2 r1 v fb v out v out output voltage adjustment using external divider resistors (r1, r2) r ic of the r1518x001c is approximately typ. 1.35 m ? (ta=25 ? c, guaranteed by design engineering). for better accuracy, setting r1 << r ic reduces errors. the resistance value for r2 should be set to 10 k ? or lower. it is easily affected by noises when setting the value of r1 and r2 larger, which makes the impedance of v fb pin larger. r ic could be affected by the temperature, therefore evaluat e the circuit taking the actual conditions of use into account when deciding the resistance values for r1 and r2.
r1518x no.ea ? 329 ? 170112 14 soft-start function r1518x is equipped with a constant slope circuit, which achieves a soft-start function. this circuit allows the output voltage to start up gradually when the ce is tur ned on. the constant slope circuit minimizes the inrush current at the start-up and also prev ents the overshoot of the output volt age. for r1518xxxxb/c/d, the capacitor to create the start-up slope is built in this device that d oes not require any external components. the start-up time and the start-up slope angle are fixed inside the device. as for r1518xxxxe/f, the soft-star t time is adjustable by inserting the external capacitor to delay pin. by using the following equation, the relation between the soft-start time t d [s] and delay pin capacitor c d [f] is determined. t d = ((c d + 90 x 10 -12 ) / i delay ) x 0.73 when the capacitor c d of r1518xxxxe/f is not used, use the delay pin as open. at that time, c d = 0 in the above equation, therefore the start-up time is about 26 s. however, be sure to consider approximately 50 s of ce delay time. conventional inrush current limit circuit constant slope circuit (diagrammatic sketch) (diagrammatic sketch) ce input voltage ce delay time output voltage inrush current ce input voltage output voltage ce dela y time soft-start time inrush curren t
r1518x no.ea ? 329 ? 170112 15 package information power dissipation (hsop-6j) the power dissipation of the package is dependent on pcb material, layout, and environmental conditions. the following conditions are used in this measurement. measurement conditions ultra-high wattage land pattern standard land pattern environment mounting on board (wind velocity = 0 m/s) mounting on board (wind velocity = 0 m/s) board material glass cloth epoxy plastic (four-layer board) glass cloth epoxy plastic (double-sided board) board dimensions 76.2 mm 114.3 mm 0.8 mm 50 mm 50 mm 1.6 mm copper ratio 96% 50% through-holes ? 0.3 mm 28 pcs ? 0.5 mm 24 pcs measurement result (ta = 25c, tjmax = 125c) ultra-high wattage land pattern standard land pattern free air power dissipation 2700 mw 1700 mw 540 mw thermal resistance 37c/w 59c/w 185c/w power dissipation vs. ambient temperature the above graph shows the power dissipation of the package at tjmax = 125c and tjmax = 150c. operating the device in the hatched range might have a negative influence on its lifetime. the total hours of use and the total years of use must be limited as follows: total hours of use total years of use (4 hours/day) 13,000 hours 9 years ultra-high wattage standard ic mount area (mm) measurement board pattern 0 250 500 750 1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 0255075100125150 power dissipation p d (mw) ambient temperature ( c) 2700 on board ultra-high wattage land pattern 105 0 250 500 750 1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 0 255075100125150 power dissipation p d (mw) ambient temperature ( c) 1700 on board standard land pattern 670 free air 540 2100 105 3400 40 50 50 76.2 114.3 50 40 20 20
r1518x no.ea ? 329 ? 170112 16 package dimensions (hsop-6j) 3.81 123 5.020.3 654 (unit: mm) 0.10 0.12 m 0.605typ. 0.150.1 1.50.1 1.670.1 0.40.1 0.600.2 0.2 6.00.3 3.90.2 + 0.10 - 0.05 hsop-6j package dimensions mark specification (hsop-6j) ???? : product code ? refer to ? r1518s mark specification table (hsop-6j)? ?? : lot number ? alphanumeric serial number ??? ??? hsop-6j mark specification
r1518x no.ea ? 329 ? 170112 17 1518s mark specification table (hsop-6j) r1518sxx1b r1518s001c product name ???? v set product name ???? v set r1518s251b w 1 2 5 2.5 v r1518s001c w 2 0 1 - r1518s331b w 1 3 3 3.3 v r1518s341b w 1 3 4 3.4 v r1518s501b w 1 5 0 5.0 v r1518s601b w 1 6 0 6.0 v r1518s851b w 1 8 5 8.5 v r1518sxx1d r1518sxx1e product name ???? v set product name ???? v set r1518s251d w 3 2 5 2.5 v r1518s251e w 4 2 5 2.5 v r1518s331d w 3 3 3 3.3 v r1518s331e w 4 3 3 3.3 v r1518s341d w 3 3 4 3.4 v r1518s341e w 4 3 4 3.4 v r1518s501d w 3 5 0 5.0 v r1518s501e w 4 5 0 5.0 v r1518s601d w 3 6 0 6.0 v r1518s601e w 4 6 0 6.0 v r1518s851d w 3 8 5 8.5 v r1518s851e w 4 8 5 8.5 v r1518sxx1f product name ???? v set r1518s251f w 5 2 5 2.5 v r1518s331f w 5 3 3 3.3 v r1518s341f w 5 3 4 3.4 v r1518s501f w 5 5 0 5.0 v r1518s601f w 5 6 0 6.0 v r1518s851f w 5 8 5 8.5 v
r1518x no.ea ? 329 ? 170112 18 power dissipation (to-252-5-p2) power dissipation (p d ) depends on conditions of mounting on board. this specification is based on the measurement at the condition below: measurement conditions ultra high wattage land pattern standard land pattern environment mounting on board (wind velocity 0 m/s) board material glass cloth epoxy plastic (four-layers) glass cloth epoxy plastic (double layers) board dimensions 76.2 mm x 114.3 mm x 0.8 mm 50 mm x 50 mm x 1.6 mm copper ratio top, back side: approx. 96%, 2nd, 3rd: 100% top side: approx. 50%, back side: approx. 50% through - hole ? 0.4 mm x 30 pcs ? 0.5 mm x 24 pcs measurement result (ta = 25c, tjmax = 125c) ultra high wattage land pattern standard land pattern power dissipation 3800 mw 1900 mw thermal resistance ? ja= (125-25 ? c)/3.8 w = 26 ? c/w ? ja=(125-25 ? c)/1.9 w= 53 ? c/w ? jc= 7 ? c/w ? jc= 17 ? c/w the above graph shows the power dissipation of the package based on tjmax=125 ? c and tjmax=150 ? c. operating the ic in the shaded area in the graph might hav e an influence it's lifetime. operating time must be within the time limit described in the table below, in case of operating in the shaded area. operating time estimated years(operating four hours/day) 13,000 hours 9years 5000 4000 3000 2000 1000 0 105 1900 2350 power dissipation p d (mw) 0 25 50 75 100 125 150 ambient temperature ( ? c) power dissipation on board on board (ultra high wattage land pattern) 3800 4800 power dissipation vs. ambience temperature measurement board pattern 50 50 standard 76.2 40 114.3 50 50 ultra high wattage ic mount area (unit: mm)
r1518x no.ea ? 329 ? 170112 19 package dimensions (to-252-5-p2) (unit: mm) 0.50 ? 0.10 0.50 ? 0.10 (0 ? 8 ? ) 1.52 + 0.26 - 0.13 (0 0.127) s 0.12 m 0.50 ? 0.10 2.30 ? 0.20 (1.00) 0.10 (6.2 0) 6.60 ? 0.20 5.34 ? 0.20 6.10 ? 0.20 (1.0 0) 9.90 ? 0.30 1.10 ? 0.20 c0.60 1.27 2.70 ? 0.20 (4.06) (3.56) r0.325 r0.225 (4.19) (1.50) (5.04) 15 to-252-5-p2 package dimensions mark specification (to-252-5-p2) ???????? : product code ? refer to ? r1518j mark specification table (to-252-5-p2)? ? : lot number ? alphanumeric serial number ????? ? to-252-5-p2 mark specification r1518j mark specification table (to-252-5-p2) *) the tab on the bottom of the package enhances thermal performance and is electrically connected to gnd (substrate level). the tab is recommended to connect to the ground plane on the board. otherwise it may be left floating.
r1518x no.ea ? 329 ? 170112 20 r1518jxx1b r1518j001c product name ???????? v set product name ???????? v set r1518j251b l 1 j 2 5 1 b 2.5 v r1518j001c l 2 j 0 0 1 c - r1518j331b l 1 j 3 3 1 b 3.3 v r1518j341b l 1 j 3 4 1 b 3.4 v r1518j501b l 1 j 5 0 1 b 5.0 v r1518j601b l 1 j 6 0 1 b 6.0 v r1518j851b l 1 j 8 5 1 b 8.5 v r1518jxx1d r1518jxx1e product name ???????? v set product name ???????? v set r1518j251d l 3 j 2 5 1 d 2.5 v r1518j251e l 4 j 2 5 1 e 2.5 v r1518j331d l 3 j 3 3 1 d 3.3 v r1518j331e l 4 j 3 3 1 e 3.3 v r1518j341d l 3 j 3 4 1 d 3.4 v r1518j341e l 4 j 3 4 1 e 3.4 v r1518j501d l 3 j 5 0 1 d 5.0 v r1518j501e l 4 j 5 0 1 e 5.0 v r1518j601d l 3 j 6 0 1 d 6.0 v r1518j601e l 4 j 6 0 1 e 6.0 v r1518j851d l 3 j 8 5 1 d 8.5 v r1518j851e l 4 j 8 5 1 e 8.5 v r1518jxx1f product name ???????? v set r1518j251f l 5 j 2 5 1 f 2.5 v r1518j331f l 5 j 3 3 1 f 3.3 v r1518j341f l 5 j 3 4 1 f 3.4 v r1518j501f l 5 j 5 0 1 f 5.0 v r1518j601f l 5 j 6 0 1 f 6.0 v r1518j851f l 5 j 8 5 1 f 8.5 v
r1518x no.ea ? 329 ? 170112 21 test circuits soft-start: internally fixed type (r1518xxxxb/d) c1 rp132x series v dd v out ce gnd v c2 v out i out v dd v out ce gnd r1518xxxxb/d r1518xxxxb/d basic test circuit c1 v dd v out ce gnd a i ss v out rp132x series v dd v out ce gnd r1518xxxxb/d c2 r1518xxxxb/d supply current test circuit rp132x series v dd v out ce gnd pulse generator i out p. g. v dd v out ce gnd v fb v dd v out ce gnd r1518xxxxb/d c2 r1518xxxxb/d ripple rejection test circuit i outa i outb c1 rp132x series v dd v out ce gnd v out v dd v out ce gnd r1518xxxxb/d c2 r1518xxxxb/d load transient response test circuit
r1518x no.ea ? 329 ? 170112 22 adjustable output voltage setting type (r1518x001c) c1 rp132x series v dd v out ce gnd v c2 v out i out v dd v out ce gnd r1518x001c v fb r2 r1 r1518x001c basic test circuit c1 v dd v out ce gnd a i ss v out rp132x series r2 v dd v out ce gnd v fb c2 r1 r1518x001c r1518x001c supply current test circuit rp132x series v dd v out ce gnd pulse generator i out p. g. v dd v out ce gnd v fb r2 v dd v out ce gnd v fb c2 r1 r1518x001c r1518x001c ripple rejection test circuit i outa i outb c1 rp132x series v dd v out ce gnd v out r2 v dd v out ce gnd v fb c2 r1 r1518x001c r1518x001c load transient response test circuit note: refer to adjustable output voltage setting for r1 and r2.
r1518x no.ea ? 329 ? 170112 23 adjustable soft-start setting type (r1518xxxxe/f) c1 rp132x series v dd v out ce gnd v c2 v out i out v dd v out ce gnd r1518xxxxe/f delay c d delay c d r1518xxxxe/f basic test circuit c1 v dd v out ce gnd a i ss v out rp132x series v dd v out ce gnd r1518xxxxe/f c2 c d delay r1518xxxxe/f supply current test circuit rp132x series v dd v out ce gnd pulse generator i out p. g. v dd v out ce gnd v fb v dd v out ce gnd r1518xxxxe/f c2 c d delay r1518xxxxe/f ripple rejection test circuit i outa i outb c1 rp132x series v dd v out ce gnd v out v dd v out ce gnd r1518xxxxe/f c2 c d delay r1518xxxxe/f load transient response test circuit note: refer to soft-start function for detailed information on c d .
r1518x no.ea ? 329 ? 170112 24 typical characteristics note: typical characteristics are intended to be us ed as reference data; they are not guaranteed. 1) output voltage vs. ou tput current (ta = 25c) r1518x25xx, r1518x001c r1518x33xx r1518x50xx r1518x85xx 2) output voltage vs. input voltage (ta = 25c) r1518x25xx r1518x33xx 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 500 1000 1500 2000 output current i out (ma) output voltage v out (v) vin=3.5v vin=4.5v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 500 1000 1500 2000 output current i out (ma) output voltage v out (v) vin=4.3v vin=5.3v 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 500 1000 1500 2000 output current i out (mv) output voltage v out (v) vin=6.0v vin=7.0v 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 0 500 1000 1500 2000 output current i out (ma) output voltage v out (v) vin=9.5v vin=10.5v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 012345 input voltage v in (v) output voltage v out (v) 0ma 1ma 30ma 150ma 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0123456 input voltage v in (v) output voltage v out (v) 0ma 1ma 30ma 150ma
r1518x no.ea ? 329 ? 170112 25 r1518x50xx r1518x85xx 3) supply current vs. input voltage r1518x25xx, r1518x001c r1518x33xx r1518x50xx r1518x85xx 0.0 1.0 2.0 3.0 4.0 5.0 6.0 01234567 input voltage v in (v) output voltage v out (v) 0ma 1ma 30ma 150ma 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 01234567891011 input voltage v in (v) output voltage v out (v) 0ma 1ma 30ma 150ma 0 5 10 15 20 25 30 0 6 12 18 24 30 36 input voltage v in (v) supply current i in (ua) 0ma 0 5 10 15 20 25 30 0 6 12 18 24 30 36 input voltage v in (v) supply current i in (ua) 0ma 0 5 10 15 20 25 30 0 6 12 18 24 30 36 input voltage v in (v) supply current i in (ua) 0ma 0 5 10 15 20 25 30 0 6 12 18 24 30 36 input voltage v in (v) supply current i in (ua) 0ma
r1518x no.ea ? 329 ? 170112 26 4) output voltage vs. operating temperature r1518x25xx, r1518x001c r1518x33xx r1518x50xx r1518x85xx 5) dropout voltage vs. output current r1518x25xx, r1518x001c r1518x33xx 2.450 2.475 2.500 2.525 2.550 -40 -20 0 20 40 60 80 100 ta (c) vout (v) 3.234 3.267 3.300 3.333 3.366 -40 -20 0 20 40 60 80 100 ta (c) vout (v) 4.900 4.950 5.000 5.050 5.100 -40 -20 0 20 40 60 80 100 ta [c] vout (v) 8.330 8.415 8.500 8.585 8.670 -40 -20 0 20 40 60 80 100 ta [c] vout (v) 0 200 400 600 800 1000 1200 1400 0 200 400 600 800 1000 output current i out (ma) dropout voltage v dif (mv) -40 25 105 0 200 400 600 800 1000 1200 0 200 400 600 800 1000 output current i out (ma) dropout voltage v dif (mv) -40 25 105
r1518x no.ea ? 329 ? 170112 27 r1518x50xx r1518x85xx 6) ripple rejection vs. input voltage (ta = 25c, ripple = 0.5 vpp) r1518x25xx, r1518x001c (i out = 1 ma) r1518x25xx, r1518x001c (i out = 300 ma) r1518x33xx (i out = 1 ma) r1518x33xx (i out = 300 ma) 0 100 200 300 400 500 600 700 800 900 1000 0 200 400 600 800 1000 output current i out (ma) dropout voltage v dif (mv) -40 25 105 0 100 200 300 400 500 600 700 800 900 1000 0 200 400 600 800 1000 output current i out (ma) dropout voltage v dif (mv) -40 25 105 0 10 20 30 40 50 60 70 03691215 input voltage vin (v) ripple rejection rr(db) 100hz 1khz 10khz 100khz 0 10 20 30 40 50 60 70 0246810 input voltage vin (v) ripple rejection rr(db) 100hz 1khz 10khz 100khz 0 10 20 30 40 50 60 70 03691215 input voltage vin (v) ripple rejection rr(db) 100hz 1khz 10khz 100khz 0 10 20 30 40 50 60 70 0246810 input voltage vin (v) ripple rejection rr(db) 100hz 1khz 10khz 100khz
r1518x no.ea ? 329 ? 170112 28 r1518x50xx (i out = 1 ma) r1518x50xx (i out = 300 ma) r1518x85xx (i out = 1 ma) r1518x85xx (i out = 300 ma) 7) ripple rejection vs. frequency (ta = 25c, ripple = 0.5 vpp) r1518x25xx, r1518x001c r1518x33xx 0 10 20 30 40 50 60 70 03691215 input voltage vin (v) ripple rejection rr(db) 100hz 1khz 10khz 100khz 0 10 20 30 40 50 60 70 0 2 4 6 8 10 12 input voltage vin (v) ripple rejection rr(db) 100hz 1khz 10khz 100khz 0 10 20 30 40 50 60 70 03691215 input voltage vin (v) ripple rejection rr(db) 100hz 1khz 10khz 100khz 0 10 20 30 40 50 60 70 03691215 input voltage vin (v) ripple rejection rr(db) 100hz 1khz 10khz 100khz 0 10 20 30 40 50 60 70 0.1 1 10 100 1000 frequency (khz) ripple rejection rr(db) 1ma 30ma 300ma 0 10 20 30 40 50 60 70 0.1 1 10 100 1000 frequency (khz) ripple rejection rr(db) 1ma 30ma 300ma
r1518x no.ea ? 329 ? 170112 29 r1518x50xx r1518x85xx 8) input transient response (ta = 25c, i out = 1 ma, tr = tf = 5 s) r1518x25xx, r1518x001c (c2 = 0.1 f) r1518x25xx, r1518x001c (c2 = 10 f) r1518x33xx (c2 = 0.1 f) r1518x33xx (c2 = 10 f) 0 10 20 30 40 50 60 70 0.1 1 10 100 1000 frequency (khz) ripple rejection rr(db) 1ma 30ma 300ma 0 10 20 30 40 50 60 70 0.1 1 10 100 1000 frequency (khz) ripple rejection rr(db) 1ma 30ma 300ma 3.5 4.0 4.5 5.0 0 50 100 150 200 250 300 350 400 time t ( s) input voltage v in (v) 1.5 2.0 2.5 3.0 output voltage v out (v) output voltage input voltage 3.5v <=> 4.5v 3.5 4.0 4.5 5.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 time t (ms) input voltage v in (v) 2.2 2.3 2.4 2.5 2.6 2.7 2.8 output voltage v out (v) output voltage input voltage 3.5v <=> 4.5v 4.3 4.8 5.3 5.8 0 50 100 150 200 250 300 350 400 time t ( s) input voltage v in (v) 2.3 2.8 3.3 3.8 output voltage v out (v) output voltage input voltage 4.3v <=> 5.3v 4.3 4.8 5.3 5.8 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 time t (ms) input voltage v in (v) 3.0 3.1 3.2 3.3 3.4 3.5 output voltage v out (v) output voltage input voltage 4.3v <=> 5.3v
r1518x no.ea ? 329 ? 170112 30 r1518x50xx (c2 = 0.1 f) r1518x50xx (c2 = 10 f) r1518x85xx (c2 = 0.1 f) r1518x85xx (c2 = 10 f) 9) load transient response (ta = 25c, v in = v out + 1.0 v, tr = tf = 0.5 s) r1518x25xx, r1518x001c (c2 = 0.1 f) r1518x25xx, r1518x001c (c2 = 10 f) 6.0 6.5 7.0 7.5 0 50 100 150 200 250 300 350 400 tim e t ( s) input voltage v in (v) 4.0 4.5 5.0 5.5 output voltage v out (v) output voltage input voltage 6.0v <=> 7.0v 6.0 6.5 7.0 7.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 tim e t (m s ) input voltage v in (v) 4.7 4.8 4.9 5.0 5.1 5.2 output voltage v out (v) output voltage input voltage 6.0v <=> 7.0v 9.5 10.0 10.5 11.0 0 50 100 150 200 250 300 350 400 time t ( s) input voltage v in (v) 7.5 8.0 8.5 9.0 output voltage v out (v) output voltage input voltage 9.5v <=> 10.5v 9.5 10.0 10.5 11.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 time t (ms) input voltage v in (v) 8.2 8.3 8.4 8.5 8.6 8.7 output voltage v out (v) output voltage input voltage 9.5v <=> 10.5v 0 300 600 0 100 200 300 400 500 600 700 800 900 time t ( s) output current i out (ma) -0.5 0.5 1.5 2.5 3.5 4.5 output voltage v out (v) output current 1ma <=>300ma output voltage 0 300 600 0 500 1000 1500 2000 2500 3000 3500 4000 time t (ms) output current i out (ma) 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 output voltage v out (v) output current 1ma <=>300ma output voltage
r1518x no.ea ? 329 ? 170112 31 r1518x33xx (c2 = 0.1 f) r1518x33xx (c2 = 10 f) r1518x50xx (c2 = 0.1 f) r1518x50xx (c2 = 10 f) r1518x85xx (c2 = 0.1 f) r1518x85xx (c2 = 10 f) 0 300 600 0 100 200 300 400 500 600 700 800 900 time t ( s) output current i out (ma) 0.3 1.3 2.3 3.3 4.3 5.3 output voltage v out (v) output current 1ma <=>300ma output voltage 0 300 600 0 500 1000 1500 2000 2500 3000 3500 4000 time t (ms) output current i out (ma) 2.80 3.05 3.30 3.55 3.80 output voltage v out (v) output current 1ma <=>300ma output voltage 0 300 600 0 100 200 300 400 500 600 700 800 900 time t ( s) output current i out (ma) 2 3 4 5 6 7 8 9 10 output voltage v out (v) output current 1ma <=>300ma output voltage 0 300 600 0 500 1000 1500 2000 2500 3000 3500 4000 time t (ms) output current i out (ma) 4.50 4.75 5.00 5.25 5.50 5.75 6.00 6.25 6.50 output voltage v out (v) output current 1ma <=>300ma output voltage 0 300 600 0 100 200 300 400 500 600 700 800 900 time t ( s) output current i out (ma) 5.5 6.5 7.5 8.5 9.5 10.5 output voltage v out (v) output current 1ma <=>300ma output voltage 0 300 600 0 500 1000 1500 2000 2500 3000 3500 4000 time t (ms) output current i out (ma) 8.00 8.25 8.50 8.75 9.00 output voltage v out (v) output current 1ma <=>300ma output voltage
r1518x no.ea ? 329 ? 170112 32 10) ce transient response (ta = 25c, i out = 1 ma) r1518x25xb/d, r1518x001c (c2 = 0.1 f) r1518x25xd (c2 = 0.1 f) r1518x33xb/d (c2 = 0.1 f) r1518x33xd (c2 = 0.1 f) r1518x50xb/d (c2 = 0.1 f) r1518x50xd (c2 = 0.1 f) 0 3.5 7 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 time t (ms) ce input voltage v ce (v) 0 1 2 3 4 5 output voltage v out (v) vce[v] iout=0ma iout=300ma 0 3.5 7 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 time t (ms) ce input voltage v ce (v) 0 1 2 3 4 5 output voltage v out (v) vce[v] iout=0ma iout=300ma 0 3.5 7 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 time t (ms) ce input voltage v ce (v) 0 1 2 3 4 5 output voltage v out (v) vce[v] iout=0ma iout=300ma 0 3.5 7 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 time t (ms) ce input voltage v ce (v) -1 0 1 2 3 4 5 output voltage v out (v) vce[v] iout=0ma iout=300ma 0 6 12 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 time t (ms) ce input voltage v ce (v) 0 1 2 3 4 5 6 7 output voltage v out (v) vce[v] iout=0ma iout=300ma 0 6 12 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 time t (ms) ce input voltage v ce (v) 0 1 2 3 4 5 6 7 output voltage v out (v) vce[v] iout=0ma iout=300ma
r1518x no.ea ? 329 ? 170112 33 r1518x85xb/d (c2 = 0.1 f) r1518x85xd (c2 = 0.1 f) r1518x25xe/f (c2 = 0.1 f, c d = 1 nf) r1518x25xf (c2 = 0.1 f, c d = 1 nf) r1518x33xe/f (c2 = 0.1 f, c d = 1 nf) r1518x33xf (c2 = 0.1 f, c d = 1 nf) 0 9.5 19 -0.1 0 0.10.20.30.40.50.60.70.80.9 time t (ms) ce input voltage v ce (v) 0 2 4 6 8 10 12 output voltage v out (v) vce[v] iout=0ma iout=300ma 0 9.5 19 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 time t (ms) ce input voltage v ce (v) 0 2 4 6 8 10 12 output voltage v out (v) vin iout=0ma iout=300ma 0 3.5 7 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 time t (ms ) ce input voltage v ce (v) 0 1 2 3 4 5 output voltage v out (v) vce[v] iout=0ma iout=300ma 0 3.5 7 -0.20.00.20.40.60.81.01.21.4 time t (ms) ce input voltage v ce (v) 0 1 2 3 4 5 output voltage v out (v) vce[v] iout=0ma iout=300ma 0 3.5 7 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 time t (ms) ce input voltage v ce (v) 0 1 2 3 4 5 output voltage v out (v) vce[v] iout=0ma iout=300ma 0 3.5 7 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 time t (ms) ce input voltage v ce (v) 0 1 2 3 4 5 output voltage v out (v) vce[v] iout=0ma iout=300ma
r1518x no.ea ? 329 ? 170112 34 r1518x50xe/f (c2 = 0.1 f, c d = 1 nf) r1518x50xf (c2 = 0.1 f, c d = 1 nf) r1518x851e/f (c2 = 0.1 f, c d = 1 nf) r1518x851f (c2 = 0.1 f, cd = 1 nf) 0 6 12 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 time t (ms) ce input voltage v ce (v) 0 1 2 3 4 5 6 7 output voltage v out (v) vce[v] iout=0ma iout=300ma 0 6 12 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 time t (ms) ce input voltage v ce (v) 0 1 2 3 4 5 6 7 output voltage v out (v) vce[v] iout=0ma iout=300ma 0 9.5 19 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 time t (ms) ce input voltage v ce (v) 0 2 4 6 8 10 12 output voltage v out (v) vce iout=0ma iout=300ma 0 9.5 19 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 time t (ms) ce input voltage v ce (v) 0 2 4 6 8 10 12 output voltage v out (v) vin iout=0ma iout=300ma
r1518x no.ea ? 329 ? 170112 35 11) inrush current prevention circuit (ta = 25c, i out = 1 ma) r1518x25xb/d, r1518x001c r1518x33xb/d r1518x50xb/d r1518x85xb/d 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 time t (ms) input voltage (v) output voltage (v) -100 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 inrush current (ma) input voltage 0.1uf 0.47uf 1.0uf 4.7uf 10uf 47uf 100uf 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 time t (ms) input voltage (v) output voltage (v) -100 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 inrush current (ma) input voltage 0.1uf 0.47uf 1.0uf 4.7uf 10uf 47uf 100uf 0 1 2 3 4 5 6 7 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 time t (ms) input voltage (v) output voltage (v) -200 0 200 400 600 800 1000 1200 1400 1600 inrush current (ma) input voltage 0.1uf 0.47uf 1.0uf 4.7uf 10uf 47uf 100uf 0 2 4 6 8 10 12 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 time t (ms) input voltage (v) output voltage (v) -300 0 300 600 900 1200 1500 1800 inrush current (ma) input voltage 0.1uf 0.47uf 1.0uf 4.7uf 10uf 47uf 100uf
r1518x no.ea ? 329 ? 170112 36 r1518x25xe/f (c d = 10 nf) r1518x33xe/f (c d = 10 nf) r1518x50xe/f (c d = 10 nf) r1518x85xe/f (c d = 10 nf) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 time t (ms ) input voltage (v) output voltage (v) -100 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 inrush current (ma) input voltage 0.1uf 0.47uf 1.0uf 4.7uf 10uf 47uf 100uf 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 time t (ms ) input voltage (v) output voltage (v) -100 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 inrush current (ma) input voltage 0.1uf 0.47uf 1.0uf 4.7uf 10uf 47uf 100uf 0 1 2 3 4 5 6 7 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 time t (ms) input voltage (v) output voltage (v) -200 0 200 400 600 800 1000 1200 1400 1600 inrush current (ma) input voltage 0.1uf 0.47uf 1.0uf 4.7uf 10uf 47uf 100uf 0 2 4 6 8 10 12 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 time t (ms ) input voltage (v) output voltage (v) -300 0 300 600 900 1200 1500 inrush current (ma) input voltage 0.1uf 0.47uf 1.0uf 4.7uf 10uf 47uf 100uf
r1518x no.ea ? 329 ? 170112 37 esr vs. output current it is recommended that a ceramic type capacitor be used fo r this device. however, other types of capacitors having lower esr can also be used. the relation between the output current (i out ) and the esr of output capacitor is shown below. r1518xxxxb/d test circuit r1518xxxxb/d v dd ce v out gnd c in c out i out c1=ceramic 0.1 f, c2=ceramic 0.1 f esr r1518x001c test circuit r1518x001c v dd ce v out gnd c in c out i out c1=ceramic 0.1 f, c2=ceramic 1.0 f esr v fb r1518xxxxe/f test circuit r1518xxx1e/f v dd ce v out gnd c in c out i out c1=ceramic 0.1 f, c2=ceramic 0.1 f esr c d measurement conditions frequency band: 10 hz to 2 mhz measurement temperature: ? 40c to 105c hatched area: noise level is 40 v (average) or below capacitor: c1 = ceramic 0.1 f, c2 = 0.1 f r1518x25xx output current i out vs. esr r1518x85xx output current i out vs. esr 0.01 0.1 1 10 100 1000 0 200 400 600 800 1000 output current [ma] esr [ ? ] 105 c -40c vin=2.5v to 36v 0.01 0.1 1 10 100 1000 0 200 400 600 800 1000 output current [ma] esr [ ? ] 105c -40c vin=8.5v to 36v
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