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| (R) SPX29150/51/52/53 1.5A Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response Time FEATURES Adjustable Output Down To 1.25V 1% Output Accuracy Output Current of 1.5A Low Dropout Voltage of 390mV @ 1.5A Extremely Tight Load and Line Regulation Extremely Fast Transient Response Reverse-Battery Protection Zero Current Shutdown (5 pin version) Error Flag Signal Output for Out of Regulation State (5 pin version) Standard TO-220 and TO-263 Packages APPLICATIONS Powering VGA & Sound Card LCD Monitors USB Power Supply Power PCTM Supplies SMPS Post Regulator High Efficiency "Green" Computer Systems High Efficiency Linear Power Supplies Portable Instrumentation Constant Current Regulators Adjustable Power Supplies Battery Charger Now Available in Lead Free Packaging Refer to page 8 for pinouts. DESCRIPTION The SPX29150/51/52/53 are 1.5A, highly accuracy voltage regulators with a low drop out voltage of 390mV dropout (typical) @ 1.5A. These regulators are specifically designed for low voltage applications that require a low dropout voltage and a fast transient response. They are fully fault protected against over-current, reverse battery, and positive and negative voltage transients. On-Chip trimming adjusts the reference voltage to 1% initial accuracy. Other features in the 5 pin versions include Enable, and Error Flag. The SPX29150/51/52/53 is offered in 3 & 5-pin TO-220 & TO-263 packages. For a 3A version, refer to the SPX29300 data sheet. TYPICAL APPLICATION CIRCUIT VIN 6.8 F + 1 SPX29150 3 2 + 10 F VOUT V IN 6.8 F + 1 SPX29152 2 GND 3 5 4 + R1 V OUT 10 F ADJ R2 Figure 1. Fixed Output Linear Regulator Figure 2. Adjustable Output Linear Regulator Date:5/25/04 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS Lead Temperature (soldering, 5 seconds) ................260C Storage Temperature Range........................-65C to +150C Operating Junction Temperature Range......-40C to +125C Input Voltage (Note 7) .................................................... 16V ELECTRICAL CHARACTERISTICS at VIN=VOUT + 1V and IOUT = 10mA, CIN = 6.8F, COUT = 10F, TA = 25C, unless otherwise specified. The Boldface applies over the junction temperature range. Adjustable versions are set to 5.0V. SPX29150/51 MIN MAX PARAMETER Fixed Voltage Options 1.8V Version Output Voltage 2.5V Version Output Voltage 3.3V Version Output Voltage 5.0V Version Output Voltage All Voltage Options Line Regulation Load Regulation V/T Dropout Voltage (Note 1, except 1.8V) Ground Current (Note 3) Ground Pin Current at Dropout Current Limit Output Noise Voltage (10Hz to 100kHz) IL=100mA Reference Voltage Reference Voltage Adjust Pin Bias Current Reference Voltage Temp. Coeff. Adjust Pin Bias Current Temp. Coeff. Date:5/25/04 CONDITIONS TYP UNITS IOUT = 10mA 10mA IOUT 1.5A, 2.5V VIN 16V IOUT = 10mA 10mA IOUT 1.5A, 3.5V VIN 16V IOUT = 10mA 10mA IOUT 1.5A, 4.3V VIN 16V IOUT = 10mA 10mA IOUT 1.5A, 6.0V VIN 16V IOUT=10mA,(VOUT+1V) VIN 16V VIN=VOUT+1V, 10mA IOUT IFULLLOAD VOUT Temp Coefficient IOUT=100mA IOUT=750mA IOUT=1.5A IOUT=750mA, VIN=VOUT+1V IOUT=1.5A VIN=0.1V less than specified VOUT, IOUT=10mA VOUT=0V (Note 2) CL=10F CL=33F Adjustable version only Adjustable version only (Note 8) 1.8 1.8 1.782 1.764 1.818 1.836 V 2.5 2.5 2.475 2.450 2.525 2.550 V 3.3 3.3 3.267 3.234 3.333 3.366 V 5.0 5.0 4.950 4.900 5.050 5.100 V SPX29150/51/52/53 0.1 0.2 13 70 230 390 12 45 0.9 2.2 400 260 1.240 1.228 1.215 1.203 40 (Note 4) 13 0.1 1.252 1.265 1.277 80 120 nA ppm/C nA/C V 1.7 0.5 1 100 200 600 25 mA mA A VRMS % % ppm/C mV SP29150/51/52/53 1.5A Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 2 ELECTRICAL CHARACTERISTICS at VIN=VOUT + 1V and IOUT = 10mA, CIN = 6.8F, COUT = 10F, TA = 25C, unless otherwise specified. The Boldface applies over the junction temperature range. Adjustable versions are set to 5.0V. PARAMETER CONDITIONS FLAG OUTPUT (ERROR COMPARATOR) Output Leakage Current Output Low Voltage Upper Threshold Voltage Lower Threshold Voltage Hysteresis ENABLE Input Input Logic Voltage Low (OFF) High (ON) ENABLE Input Pin VIN<10V 2.4 VEN=16V VEN=0.8V Regulator Output Current in Shutdown Thermal Resistance (Note 6) TO-200 Junction to Case, at Tab TO-220 Junction to Ambient TO-263Junction to Case, at Tab TO-263 Junction to Ambient 10 3 60 3 60 100 600 750 1 2 500 A A A C/W VOH=16V Device set for 5V,VIN=4.5V, IOL=250A Device set for 5V, (Note 5) Device set for 5V, (Note 5) Device set for 5V, (Note 5) TYP 0.1 200 60 75 15 SPX29151/29152 0.8 V 40 25 95 140 MIN MAX UNITS SPX29150/29151/29153 1 2 300 400 A mV mV mV mV NOTES: Note 1: Dropout voltage is defined as the input to output differential when the output voltage drops to 99% of its nominal value. Note 2: VIN = VOUT (NOMINAL) +1V. For example, use VIN = 4.3V for a 3.3V regulator. Employ pulse-testing procedures to minimize temperature rise. Note 3: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current to the ground current. Note 4: Thermal regulation is defined as the change in the output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation effects. Note 5: Comparator threshold is expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured 6V input. To express these thresholds in terms of output voltage change, multiply the error amplifier gain = VOUT/VREF = (R1 + R2)/R2. For example, at a programmable output voltage of 5V, the Error output is guaranteed to go low when the output drops by 95mVx 5V/ 1.240V = 38mV. Threshold remain constant as a percent of VOUT as VOUT is varied, with the dropout warning occurring at typically 5% below nominal, 7.7% guaranteed. Note 6: VEN 0.8V and VIN 16V, VOUT = 0. Note 7: Maximum positive supply voltage of 20V must be of limited duration (<100m_) < 1%. The maximum continuous supply voltage is 16V. Note 8: VREF VOUT (VIN-1), 2.5VVIN 16V, 10mA IL IFL, Tj < Tjmax. BLOCK DIAGRAM IN O.V I LIMIT FLAG + 1.180V Reference 1.240V + ADJ EN Thermal Shutdown 28V R1* OUT R2* GND Date:5/25/04 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 3 TYPICAL PERFORMANCE CHARACTERISTICS 3.320 3.315 3.310 3.310 3.305 Vout (V ) Vout (V) 3.305 3.300 3.295 3.290 3.285 3.280 4 6 8 10 Vin (V) 12 3.3V Device IL = 10mA CL = 10 F 14 16 3.300 3.295 3.290 3.285 3.280 0 3.3V Device Vin = 4.3V CL = 10 F 0.25 0.5 0.75 IL (A) 1 1.25 1.5 Figure 3. Line Regulation Figure 4. Load Regulation 80.0 70.0 60.0 300 280 260 Ignd (mA) Ignd (uA) 50.0 40.0 30.0 20.0 10.0 0.0 0 0.25 0.5 0.75 IL (A) 1 1.25 1.5 3.3V Device Vin = 4.3V CL = 10 F 240 220 200 180 4 6 8 10 Vin (V) 12 14 16 3.3V Device IL = 10mA CL = 10 F Figure 5. Ground Current vs Load Current Figure 6. Ground Current vs Input Voltage 600 100 90 80 70 60 50 40 30 20 10 0 0 0.25 0.5 0.75 IL (A) 1 1.25 1.5 3.3V Device Vin = 3.2V CL = 10 F Vdropout (mV) 500 400 300 200 100 0 0 0.25 0.5 0.75 IL (A) 1 1.25 1.5 3.3V Device CL = 10 F Ignd (mA) Figure 7. Ground Current vs Load Current in Dropout Figure 8. Dropout Voltage vs Load Current Date:5/25/04 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 4 TYPICAL PERFORMANCE CHARACTERISTICS 280 270 260 250 3.320 3.310 3.300 3.290 Vout Ignd (uA) 240 230 220 210 200 190 180 -40 -20 0 20 40 60 Temperature (o C) 80 100 120 3.3V Device Vin = 4.3V IL = 10mA CL = 10 F 3.280 3.270 3.260 3.250 3.240 3.230 3.220 -40 3.3V Device Vin = 4.3V IL = 10mA CL = 10 F -20 0 20 40 60 Temperature (o C) 80 100 120 Figure 9. Ground Current vs Temperature at ILOAD=10mA 7.00 6.80 6.60 6.40 Ignd (mA) 6.20 6.00 5.80 5.60 5.40 5.20 5.00 -40 -20 0 20 40 60 Temperature (o C) 80 100 120 3.3V Device Vin = 4.3V IL = 500mA CL = 10 F Figure 10. Output Voltage vs Temperature at ILOAD=10mA 30 29 28 27 3.3V Device Vin = 3.2V IL = 750mA CL = 10 F Ignd (mA) 26 25 24 23 22 21 20 -40 -20 0 20 40 60 o Temperature ( C) 80 100 120 Figure 11. Ground Current vs Temperature at ILOAD=500 Figure 12. Output Voltage vs Temperature in Dropout at ILOAD=750mA 52.0 50.0 48.0 Ignd (mA) 46.0 44.0 42.0 40.0 38.0 36.0 -40 -20 0 20 40 60 80 100 120 3.3V Device Vin = 4.3V IL = 1.5A CL = 10 uF 100 95 90 Ignd (mA) 85 80 75 70 -40 -20 0 20 40 60 o Temperature ( C) 80 100 120 3.3V Device Vin = 3.2V IL = 1.5A CL = 10 F Temperature (o C) Figure 13. Ground Current vs Temperature at ILOAD=1.5A Figure 14. Output Current vs Temperature in Dropout at ILOAD=1.5A Date:5/25/04 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 5 TYPICAL PERFORMANCE CHARACTERISTICS 350 330 310 290 270 250 230 210 190 170 150 -40 -20 0 20 40 60 Temperature (o C) 80 100 120 3.3V Device IL = 750mA CL = 10 F 500 480 460 Vdropout (mV) Vdropout (mV) 440 420 400 380 360 340 320 -40 -20 0 20 40 60 o Temperature ( C) 80 3.3V Device IL = 750mA CL = 10 F 100 120 Figure 15. Dropout Voltage vs Temperature at ILOAD=750mA Figure 16. Dropout Voltage vs Temperature at ILOAD=1.5A 35 30 25 Ienable (uA) 2.00 1.90 1.80 1.70 Vth (V) 3.3V Device 20 15 10 5 0 -40 3.3V Device 1.60 1.50 1.40 1.30 1.20 1.10 1.00 -20 0 20 40 60 o Temperature ( C) 80 100 120 -40 -20 0 20 40 60 Temperature (o C) 80 100 120 Figure 17. ENABLE Current vs Temperature at VEN=16V Figure 18. ENABLE Threshold vs Temperature Date:5/25/04 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 6 APPLICATION INFORMATION The SPX29150/51/52/53 incorporates protection against over-current faults, reversed load insertion, over temperature operation, and positive and negative transient voltage. Thermal Considerations Although the SPX29150/51/52/53 offers limiting circuitry for overload conditions, it is still necessary to insure that the maximum junction temperature is not exceeded in the application. Heat will flow through the lowest resistance path, the junction-to-case path. In order to insure the best thermal flow of the component, proper mounting is required. Consult the heatsink manufacturer for thermal resistance and heat sink design. TO-220 Design Example: Assume that VIN = 10V, VOUT = 5V, IOUT = 1.5A, TA = 50C, HA= 1C/W, CH= 2C/W, and JC= 3C/W, where: TA = ambient temperature, HA= heatsink to ambient thermal resistance CH= case to heatsink thermal resistance JC = junction to case thermal resistance The power calculated under these conditions is: PD = (VIN - VOUT) * IOUT = 7.5W. And the junction temperature is calculated as TJ = TA + PD * (HA + CH + JC) or TJ = 50 + 7.5 * (1+2+3) = 95C Reliable operation is insured. Capacitor Requirements The output capacitor is needed to insure stability and minimize the output noise. The value of the capacitor varies with the load. However, a minimum value of 10F aluminum capacitor will guarantee stability over all load conditions. A tantalum capacitor is recommended if a faster load transient response is needed. If the power source has a high AC impedance, a 0.1F ceramic capacitor between input & ground is recommended. Minimum Load Current To ensure a proper behavior of the regulator under light load, a minimum load of 5mA for SPX29150/51/52/53 is required. Typical Application Circuits Figure 19 represents at typical fixed output regulator. Figure 20 represents an adjustable output regulator. The values of R1 and R2 set the output voltage value as follows: VOUT =VREF * [1 + (R1/R2)]. For best results, the total series resistance should be small enough to pass a minimum regulator load current of 5mA. A minimum value of 10k is recommended for R2 with a range between 10k and 47k. VIN 6.8 F + 1 SPX29150 2 3 + 10 F VOUT V IN 6.8 F + 1 SPX29152 2 GND 3 5 4 + R1 V OUT 10 F ADJ R2 Figure 19. Fixed Output Linear Regulator Figure 20. Adjustable Output Linear Regulator Date:5/25/04 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 7 PACKAGE PINOUTS TO-263-3 Package (T) TO-263-5 Package (T5) SPX29151 SPX29152 1) ENABLE 2) INPUT 3) GND 4) OUTPUT 5) ADJUST SPX29153 1) FLAG 2) INPUT 3) GND 4) OUTPUT 5) ADJUST 1 2 3 1 2345 1) ENABLE 2) INPUT 3) GND 4) OUTPUT 5) FLAG V IN GND V OUT Top View Front View TO-220-3 Package (U) TO-220-5 Package (U5) SPX29151 1 2 3 SPX29152 1) ENABLE 2) INPUT 3) GND 4) OUTPUT 5) ADJUST SPX29153 1) FLAG 2) INPUT 3) GND 4) OUTPUT 5) ADJUST 1) ENABLE 2) INPUT 3) GND 4) OUTPUT 5) FLAG V IN GND V OUT 1 234 5 *Tab is internally connected to GND Front View Top View Date:5/25/04 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 8 ORDERING INFORMATION PART NUMBER ACCURACY OUTPUT VOLTAGE PACKAGE SPX29150U-1.8 SPX29150U-2.5 SPX29150U-3.3 SPX29150U-5.0 SPX29150T-1.8 SPX29150T-1.8/TR SPX29150T-2.5 SPX29150T-2.5/TR SPX29150T-3.3 SPX29150T-3.3/TR SPX29150T-5.0 SPX29150T-5.0/TR SPX29151U5-1.8 SPX29151U5-2.5 SPX29151U5-3.3 SPX29151U5-5.0 SPX29151T5-1.8 SPX29151T5-1.8/TR SPX29151T5-2.5 SPX29151T5-2.5/TR SPX29151T5-3.3 SPX29151T5-3.3/TR SPX29151T5-5.0 SPX29151T5-5.0/TR SPX29152T5 SPX29152T5/TR SPX29152U5 SPX29153T5 SPX29153T5/TR SPX29153U5 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.8V 2.5V 3.3V 5.0V 1.8V 1.8V 2.5V 2.5V 3.3V 3.3V 5.0V 5.0V 1.8V 2.5V 3.3V 5.0V 1.8V 1.8V 2.5V 2.5V 3.3V 3.3V 5.0V 5.0V Adj Adj Adj Adj Adj Adj 3 lead TO-220 3 lead TO-220 3 lead TO-220 3 lead TO-220 3 lead TO-263 3 lead TO-263 3 lead TO-263 3 lead TO-263 3 lead TO-263 3 lead TO-263 3 lead TO-263 3 lead TO-263 5 lead TO-220 5 lead TO-220 5 lead TO-220 5 lead TO-220 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-263 5 lead TO-220 5 lead TO-263 5 lead TO-263 5 lead TO-220 Available in lead free packaging. To order add "-L" suffix to part number. Example: SPX29153T5/TR = standard; SPX29153T5-L/TR = lead free Sipex Corporation Headquarters and Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600 Corporation ANALOG EXCELLENCE Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. Date:5/25/04 SP29150/51/52/53 1.5A Low Dropout Voltage Regulator (c) Copyright 2004 Sipex Corporation 9 |
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