View R5220D231A_4526756.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

R5220x SERIES
PWM Step-down DC/DC Converter with switch function
NO.EA-121-070824
OUTLINE
The R5220x Series are CMOS-based PWM step-down DC/DC Converters with synchronous rectifier, low supply current and LDO mode. DC/DC converter of the R5220x consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a soft-start circuit, protection circuits, a protection against miss operation under low voltage (UVLO), PWM-DC to DC converter / LDO alternative circuit, a chip enable circuit, and a driver transistor. A high efficiency step-down DC/DC converter can be easily composed of this IC with only a few kinds of external components, or an inductor and capacitors. LDO of the R5220x consists of a vortage reference unit, an error amplifier, resistors for voltage setting, output current limit circuit, a driver transistor, and so on. The output voltage is fixed internally in the R5220x. The output voltage of the DC/DC converter and the LDO can be set independently. PWM step-down DC/DC converter / LDO alternative circuit is active with Mode Pin of the R5220x Series. Thus, when the load current is small, the operation can be switching into the LDO operation from PWM operation by the logic of MODE pin and the consumption current of the IC itself will be small at light load current. As protection circuits, the current limit circuit which limits peak current of Lx at each clock cycle, and the latch type protection circuit which works if the term of the over-current condition keeps on a certain time in PWM mode. Latch-type protection circuit works to latch an internal driver with keeping it disable. To release the protection, after disable this IC with a chip enable circuit, enable it again, or restart this IC with power-on or make the supply voltage at UVLO detector threshold level or lower than UVLO.
FEATURES
* * * * * * * * * * * * * Supply Current ................................................................ Typ. 350A (DC/DC), Typ. 5A (VR) Standby Current .............................................................. Typ. 0.1A Built-in Driver ON Resistance ......................................... P-channel 0.5, N-channel 0.5 (at VIN=3.6V) Output Current ................................................................ Min. 400mA (DC/DC), Min. 50mA (VR) Input Voltage ................................................................... 2.8V to 5.5V (Absolute Input Maximum: 6.5V) Output Voltage ................................................................ 1.0V to 3.3V Output Voltage Accuracy................................................. 2.0% (VOUT > 1.5), 30mV (VOUT <1.5V) = Oscillator Frequency (DC/DC) ........................................ Typ. 1.2MHz Package .......................................................................... SON-6, PLP2514-6 Built-in Soft-start Function............................................... Typ. 0.2ms Latch-type Protection Function (Delay Time).................. Typ. 3.0ms Built-in fold-back protection circuit (DC/DC, VR) Ceramic Capacitor is recommended.
APPLICATIONS
* Power source for portable equipment such as DSC, DVC, and communication equipment.
1
R5220x
BLOCK DIAGRAM
VIN
OSC OUTPUT CONTROL Vref Current Limit Soft Start
LX
MODE1 CE
VOUT
Vref Current Limit
GND
*1 R5220xxxxA: DC/DC mode: Mode pin= "H", VR mode: Mode pin= "L" R5220xxxxB: DC/DC mode: Mode pin= "L", VR mode: Mode pin= "H"
SELECTION GUIDE
In the R5220x Series, the output voltage, the version, and the taping type for the ICs can be selected at the user's request. The selection can be made with designating the part number as shown below;
R5220xxxxx-xx-x Part Number
a bcd e f Code a b c Designating the Package type: D: SON-6 K: PLP2514-6 Setting Output Voltage (VOUT) or alphanumeric custom code. Setting Output Voltage 1: standard (b: output voltage; DC/DC output voltage = LDO output voltage) 2: custom code (b: custom code; DC/DC output voltage LDO output voltage) Designation of chip enable and Mode pin polarities A: CE; "H" active, Mode pin; "H"=DC/DC converter mode, "L"=LDO Mode B: CE; "H" active, Mode pin; "L"=DC/DC converter mode, "H"=LDO Mode Designation of Taping Type; (Refer to Taping Specification) "TR" is prescribed as a standard. Designation of composition of plating: -F: Lead free plating (SON-6) None: Au plating (PLP2514-6) Contents
d e f
2
R5220x
PIN CONFIGURATIONS
SON-6 Top View
654
PLP2514-6 Top View
6 5 4
Bottom View
456
Bottom View
4 5 6
123
321
1 2 3
3
2
1
PIN DESCRIPTIONS
Pin No 1 2 3 4 5 6 Symbol Lx GND MODE CE VOUT VIN Description LX Pin Voltage Supply Pin Ground Pin Mode changer Pin (Refer to the selection guide above.) Chip Enable Pin (active with "H") Output Pin Voltage Supply Pin
* Tab in the parts have GND level. (They are connected to the back side of this IC.) Do not connect to other wires or land patterns.
ABSOLUTE MAXIMUM RATINGS
Symbol VIN VLX VCE VMODE VOUT ILX IOUT PD Topt Tstg Item VIN Supply Voltage LX Pin Voltage CE Pin Input Voltage MODE Pin Input Voltage VOUT Pin Voltage LX Pin Output Current VOUT Pin Output Current Power Dissipation (SON-6)* Power Dissipation (PLP2514-6)* Operating Temperature Range Storage Temperature Range Rating 6.5 -0.3 to VIN+0.3 -0.3 to 6.5 -0.3 to 6.5 -0.3 to VIN+0.3 600 200 500 730 -40 to +85 -55 to +125 C C Unit V V V V V mA mA mW
*) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
3
R5220x
ELECTRICAL CHARACTERISTICS
*
R5220xxxxA
Conditions VIN=VOUT1+1.0V, VCE=GND, VMODE=GND or VIN VOUT1:DC/DC Set VOUT VIN=VCE=VOUT2+1.0V, VMODE=GND VOUT2:VR Set VOUT, IOUT=0mA VIN=VCE=VMODE=3.6V Conditions Min. > 1.5 VOUT1 = x0.98 VIN=3.6V IOUT=50mA VOUT1 < 1.5 -0.03 0.96 VIN=3.6V VOUT1 < 1.5 VIN=3.6V VOUT1 > 1.5 = VIN=3.6V, ILX=-100mA VIN=3.6V, ILX=-100mA VIN=5.5V, VCE=0V, LX=5.5V/0V -1.0 -40C
< =
Topt=25C
Symbol Item VIN Operating Input Voltage Supply Current 1 ISS1 (Standby mode) Supply Current 2 ISS2 (Power Save mode) ISS3 Supply Current 3 DC/DC Part Symbol VOUT1 fosc TSTART RONP RONN ILXLEAK VOUT/ Topt Maxduty ILXlim Tprot VUVLO1 VUVLO2 VMODEH VMODEL VR Part Symbol Item
Min. 2.8
Typ. 0.1 5 350
Max. 5.5 1.0 10 450
Unit V A A A Unit V MHz ms A
Topt=25C
Typ.
Output Voltage Oscillator Frequency Soft-start Time ON Resistance of Pch Transistor ON Resistance of Nch Transistor Lx Leakage Current Output Voltage Temperature Coefficient Oscillator Maximum Duty Cycle Lx Current Limit Protection Delay Circuit UVLO Threshold Voltage UVLO Released Voltage MODE "H" Input Voltage MODE "L" Input Voltage Item
1.20 0.15 0.20 0.5 0.5 150
Max. x1.02 +0.03 1.44 0.30 0.35
1.0
Topt
< =
85C 100 500 1.0 2.00 2.05 1.0 0
ppm/C % mA ms V V V V
Topt=25C
VOUT=0V VIN=3.6V VIN=3.6V VIN=VCE=VMODE, VOUT=0V VIN=VCE=VMODE, VOUT=0V
800 3.0 2.35 2.45
7.0 2.75 2.80 0.3
Conditions Min. > 1.5 VOUT2 = VIN=VOUT2+1.0V x0.98 VOUT2 Output Voltage IOUT=10mA VOUT2 < 1.5 -0.03 IOUT Output Current 50 VIN=VOUT2+1.0V VOUT2 < 2.3 VIN=VOUT2+1.0V VOUT2/ Load Regulation 2.3 < VOUT2 < 3.0 = IOUT 10A < IOUT < 25mA = = VOUT2 > 3.0 = VOUT2 < 1.8 VDIF Dropout Voltage IOUT=50mA VOUT2 > 1.8 = 2.8V < VIN < 5.5V = = VOUT2 < 2.3 IOUT=25mA VOUT2/ Line Regulation VIN VOUT2+0.5V < VIN < 5.5V = = VOUT2 > 2.3 = IOUT=25mA RR Ripple Rejection Refer to Typical Characteristics VOUT/ Output Voltage IOUT=30mA, Topt Temperature Coefficient -40C < Topt < 85C = = Ilim Short Current Limit VOUT=0V IPDC CE pull-down current 0.12 VCEH CE "H" Input Voltage 1.0 VCEL CE "L" Input Voltage 0
Typ.
Max. x1.02 +0.03 40 50 65
Unit V mA
15 25 35 0.7 0.3
mV V
0.2
%/V dB
100 60 0.40 0.70 0.3
ppm/C mA A V V
4
R5220x
*
R5220xxxxB
Conditions VIN=VOUT1+1.0V, VCE=GND, VMODE=GND or VIN VOUT1:DC/DC Set VOUT VIN=VCE=VMODE=VOUT2+1.0V, VOUT2:VR Set VOUT, IOUT=0mA VIN=VCE=3.6V, VMODE=GND Min. 2.8 Typ. 0.1 5 350
Topt=25C
Symbol Item VIN Operating Input Voltage Supply Current 1 ISS1 (Standby mode) Supply Current 2 ISS2 (Power Save mode) ISS3 Supply Current 3 DC/DC Part Symbol VOUT1 fosc TSTART RONP RONN ILXLEAK VOUT/ Topt Maxduty ILXlim Tprot VUVLO1 VUVLO2 VMODEH VMODEL VR Part Symbol
Max. 5.5 1.0 10 450
Unit V A A A
Topt=25C
Item
Output Voltage Oscillator Frequency Soft-start Time ON Resistance of Pch Transistor ON Resistance of Nch Transistor Lx Leakage Current Output Voltage Temperature Coefficient Oscillator Maximum Duty Cycle Lx Current Limit Protection Delay Circuit UVLO Threshold Voltage UVLO Released Voltage MODE "H" Input Voltage MODE "L" Input Voltage
Conditions VOUT1 > 1.5 VIN=3.6V = IOUT=50mA VOUT1<1.5 VIN=VSET1+1.5V VOUT1<1.5 VIN=3.6V VOUT1 > 1.5 = VIN=3.6V, ILX=-100mA VIN=3.6V, ILX=-100mA VIN=5.5V, VCE=0V, LX=5.5V/0V -40C
< =
Min. x0.98 -0.03 0.96
Typ.
1.20 0.15 0.20 0.5 0.5 150
Max. x1.02 +0.03 1.44 0.30 0.35
Unit V MHz ms A ppm/C % mA ms V V V V
Topt=25C
-1.0
1.0
Topt
< =
85C 100 500 1.0 2.00 2.05 1.0 0
VOUT=0V VIN=3.6V VIN=3.6V VCE=VIN, VMODE=GND, VOUT=0V VCE=VIN, VMODE=GND, VOUT=0V
800 3.0 2.35 2.45
7.0 2.75 2.80 0.3
Conditions VOUT2 > 1.5 VIN=VOUT2+1.0V = VOUT2 Output Voltage IOUT=10mA VOUT2<1.5 IOUT Output Current VIN=VOUT2+1.0V VOUT2<2.3 VIN=VOUT2+1.0V VOUT2/ Load Regulation 2.3 < VOUT2<3.0 = IOUT 10A < IOUT < 25mA = = VOUT2 > 3.0 = VOUT2<1.8V VDIF Dropout Voltage IOUT=50mA VOUT2 > 1.8V = < VIN < 5.5V 2.8V = = VOUT2<2.3V IOUT=25mA VOUT2/ Line Regulation VIN VOUT2+0.5V < VIN < 5.5V = = VOUT2 > 2.3V = IOUT=25mA RR Ripple Rejection Refer to Typical Characteristics VOUT/ Output Voltage IOUT=30mA, Temperature Coefficient -40C < Topt < 85C Topt = = Ilim Short Current Limit VOUT=0V IPDC CE pull-down current VCEH CE "H" Input Voltage VCEL CE "L" Input Voltage
Item
Min. x0.98 -0.03 50
Typ.
Max. x1.02 +0.03 40 50 65
Unit V mA
15 25 35 0.7 0.3
mV V
0.2
%/V dB
100 0.12 1.0 0 60 0.40 0.70 0.3
ppm/C mA A V V
5
R5220x
TYPICAL APPLICATION
VIN CIN 10F
L 4.7H 1 Lx VIN 6
2
R5220x Series
GND VOUT
5
Load COUT 10F
3
MODE
CE
4
Parts Recommendation
CIN COUT L 10F Ceramic Capacitor C2012JB0J106K (TDK) 10F Ceramic Capacitor C2012JB0J106K (TDK) 4.7H VLP5610-4R7(TDK)
External Components
* Set external components such as an inductor, CIN, COUT as close as possible to the IC, in particular, minimize the wiring to VIN pin and GND pin. If VDD line or GND line's impedance is high, the internal voltage level of the IC may fluctuate and the operation may be unstable. Make GND line and VDD line sufficient. Through the VDD line, the GND line, the inductor, Lx pin, and VOUT line, a large current caused by switching may flow, therefore, those lines should be sufficient and avoid the cross talk with other sensitive lines. Use the individual line from the VOUT pin of the IC for the inductor and the capacitor and load. * Use a low ESR ceramic capacitor COUT/CIN with a capacity of 10F or more. * Select an inductor with an inductance range from 4.7H to 10H. The internal phase compensation is secured with these inductance values and COUT value. Choose the inductor with a low DC resistance and enough permissible current and hard to reach magnetic saturation. In terms of inductance value, choose the appropriate value with considering the conditions of the input voltage range and the output voltage, and load current. If the inductance value is too small and the load current is large, the peak current of Lx may reach the Lx current limit, and the protection against over-current may work. * The protection circuit against over-current is affected by the self-heating and the heat radiation environment. Therefore evaluate under the considerable environment of the application. The performance of power source circuits using these ICs extremely depends upon the peripheral circuits. Pay attention in the selection of the peripheral circuits. In particular, design the peripheral circuits in a way that the values such as voltage, current, and power of each component, PCB patterns and the IC do not exceed their respected rated values.
6
R5220x
OPERATION of step-down DC/DC converter and Output Current
The step-down DC/DC converter charges energy in the inductor when LX transistor is ON, and discharges the energy from the inductor when LX transistor is OFF and controls with less energy loss, so that a lower output voltage than the input voltage is obtained. The operation will be explained with reference to the following diagrams:
IL i1 VIN Pch Tr Nch Tr L i2 CL GND ton VOUT ILmin
ILmax topen
toff T=1/fosc
Step 1: P-channel Tr. turns on and current IL (=i1) flows, and energy is charged into CL. At this moment, IL increases from ILmin (=0) to reach ILmax in proportion to the on-time period (ton) of P-channel Tr. Step 2: When P-channel Tr. turns off, Synchronous rectifier N-channel Tr. turns on in order that L maintains IL at ILmax, and current IL (=i2) flows. Step 3: IL (=i2) decreases gradually and reaches IL=ILmin=0 after a time period of topen, and N-channel Tr. Turns off. Provided that in the continuous mode, next cycle starts before IL becomes to 0 because toff time is not enough. In this case, IL value increases from this ILmin (>0). In the case of PWM control system, the output voltage is maintained by controlling the on-time period (ton), with the oscillator frequency (fosc) being maintained constant. The maximum value (ILmax) and the minimum value (ILmin) of the current flowing through the inductor are the same as those when P-channel Tr. turns on and off. The difference between ILmax and ILmin, which is represented by I;
I=ILmax-ILmin=VOUTxtopen/L=(VIN-VOUT)xton/L ........................................................ Equation 1
wherein, T=1/fosc=ton+toff duty (%)=ton/Tx100=tonxfoscx100 topen < toff = In Equation 1, VOUTxtopen/L and (VIN - VOUT) xton/L respectively show the change of the current at "ON", and the change of the current at "OFF".
7
R5220x
OUTPUT CURRENT AND SELECTION OF EXTERNAL COMPONENTS
When P-channel Tr. of LX is ON: (Wherein, Ripple Current P-P value is described as IRP, ON resistance of P-channel Tr. and N-channel Tr. of LX are respectively described as RONP and RONN, and the DC resistor of the inductor is described as RL.) VIN = VOUT + (RONP + RL) x IOUT + L x IRP / ton ...................................................................Equation 2 When P-channel Tr. of LX is "OFF"(N-channel Tr. is "ON"): L x IRP / toff = RONN x IOUT + VOUT + RL x IOUT ..................................................................Equation 3 Put Equation 3 to Equation 2 and solve for ON duty of P-channel transistor, ton/(toff+ton)=DON, DON = (VOUT - RONN x IOUT + RL x IOUT) / (VIN + RONN x IOUT - RONP x IOUT)............................Equation 4 Ripple Current is as follows; IRP = (VIN - VOUT - RONP x IOUT - RL x IOUT) x DON / fosc / L................................................Equation 5 wherein, peak current that flows through L, and LX Tr. is as follows; ILmax = IOUT + IRP / 2 ......................................................................................................Equation 6 Consider ILmax, condition of input and output and select external components. The above explanation is directed to the calculation in an ideal case in continuous mode.
8
R5220x
TIMING CHART
1) IC start-up
The timing chart as shown in the next describes the operation starting the IC is enabled with CE. When the CE pin voltage becomes higher than the threshold voltage, the IC's operations starts. At first, only the voltage regulator (VR) starts. The threshold level of the CE pin is between CE "H" input voltage and CE "L" input voltage. After starting the operation, the output capacitor (COUT) is charged with the output current of the VR, and the output level becomes the set VR output voltage. At this moment, the output of Lx is "off", ("Hi-Z"), the pin voltage, VLX=VOUT through the external inductor L. Secondly, the Mode pin voltage is higher than the threshold voltage, internal operation of DC/DC starts. The threshold level is between Mode "H" input voltage and Mode "L" input voltage. The soft-start circuit inside the DC/DC converter's operation is as follows: (Case 1) DC/DC output voltage < VR output voltage After the soft-start time, while the output voltage level is down from the VR output voltage to DC/DC output voltage, the circuit is waiting for the start of DC/DC operation. When the output voltage reaches so set DC/DC output voltage level, the actual DC/DC operation starts. (Case 2) DC/DC output voltage> VR output voltage The soft-start circuit of DC/DC converter makes the voltage reference unit of the IC rise gradually and be constant. After the voltage reference unit reaches the constant level which the output voltage of DC/DC converter can balance becomes the output voltage of VR, the set output voltage of DC/DC converter may be realized. Therefore, the soft-start time means the time range of starting to the time when the voltage reference unit reaches the constant level, and the soft-start time is different from turning on speed in some cases. The operation starting time depends on the ability of the power supply, the load current, the inductance value, the capacitance value, and the voltage difference between the set VR output and the set DC/DC output. If CE and Mode are on at once, the same operation as above is happened except the VR start-up and Soft-start operation start at the same time. If Mode signal is forced earlier than CE signal, this IC is stand-by until CE signal comes. Therefore when the CE signal is set, the IC operation starts as above.
* VOUT voltage rising speed at start-up with power supply is affected by the next conditions:
1.The turning on speed of VIN voltage limited by the power supply to the IC and the input capacitor CIN. 2.The output capacitor, COUT value and load current.
* DC/DC operation starting time
1.If the VR output > DC/DC output, the operation starting time of the DC/DC converter is approximately equal to = the next formula. TDC/DC_ACT = TSS + (VOUT_VR - VOUT_DC/DC + 15mV) x COUT / (load current at mode change + 1A) TSS: Soft-start time VOUT_VR: VR output voltage VOUT_DC/DC: DC/DC Output Voltage *1A is the supply current of the IC itself for the output. 2.If the VR output < DC/DC output, the operation starting time is the soft-start time + starting operation time which depends on the power supply, the load current, and the external components.
9
R5220x
VCEH
CE pin input signal
VCEL
MODE pin input signal
VMODEH
VMODEL
IC DC/DC Voltage Reference Unit
Soft start time
A.VR Output=DC/DC Output voltage VOUT Effect from Power Supply, Load Current, Extemal Components
Lx voltage DC/DC Operation B.VR voltage > DC/DC Output VOUT DC/DC does not operate if VR output is larger than DC/DC
Lx voltage DC/DC Operation
C. VR voltage < DC/DC voltage VOUT
Lx voltage DC/DC Operating
If CE pin input signal is forced earlier than the supply voltage, the voltage difference between the input and the output which is according to the input voltage to VIN, is maintained and the VOUT is rising up.
10
R5220x
TEST CIRCUITS
OSCILLOSCOPE
Lx
VIN V
V VOUT
Lx
VIN V
V VOUT
GND GND
MODE MODE
A
GND GND
MODE MODE
CE
CE
Supply Current 1,2,3
Output Voltage(DC/DC)
OSCILLOSCOPE
OSCILLOSCOPE Lx GND GND
MODE MODE
VIN V
V VOUT
Lx GND GND
MODE MODE
VIN V
V VOUT
CE
CE
Oscillator Frequency
OSCILLOSCOPE
Soft-start Time
Lx GND GND
VIN V
V VOUT
Lx
GND GND
VIN V
V VOUT
A
MODE MODE
CE
MODE MODE
CE
Lx Leakage Current
Lx Current Limit, Output Delay for Protection Lx Pch transistor ON resistance Nch transistor ON resistance
11
R5220x
OSCILLOSCOPE OSCILLOSCOPE
Lx GND GND
MODE MODE
VIN V
V VOUT
Lx
GND GND
VIN V
V VOUT
CE
MODE MODE
CE
A
UVLO Detector Threshold UVLO Release Voltage
MODEInput Voltage "H","L" Input Current
Lx
VIN V
V VOUT
Lx
VIN V
V VOUT
GND GND
MODE MODE
GND GND
CE
MODE MODE
CE
Network Analyzer
V
Output Voltage (VR), Load Regulation Line Regulation, Dropout Voltage
Lx
(J) RippleRejection
VIN V
V VOUT
Lx
VIN V
V VOUT
GND GND
MODE MODE
GND GND
MODE MODE
CE
CE
A
V
A
Short Current Limit
CE="H"/"L" Input Voltage/ Input Current
12
R5220x
TYPICAL CHARACTERISTICS
1) DC/DC Converter
1-1) DC/DC Output Voltage vs. Output Current R5220x181A
1.84 1.83
1-2) DC/DC Output Voltage vs. Input Voltage R5220x181A
1.84 1.83
Output Voltage(V)
Output Voltage(V)
1.82 1.81 1.80 1.79 1.78 1.77 1.76 0 100 200 300 Output Current(mA) 400 2.8V 3.6V 5.5V
1.82 1.81 1.80 1.79 1.78 1.77 1.76 2.5 3.0 3.5 4.0 4.5 Input Voltage(V) 1mA 50mA 250mA 5.0 5.5
1-3) DC/DC Efficiency vs. Output Current R5220x181A
100 80
1-4) DC/DC Supply Current vs. Temperature
VIN=VCE=VMODE=3.6V 400 380 360 340 320 300 280 260 240 220 200 -50
60 40 20 0 0.1 2.8V 3.6V 5.5V 1 10 100 Output Current(mA) 1000
Supply Current ISS(A)
Efficiency(%)
DC/DC_VSET : 1.0V DC/DC_VSET : 1.8V -25 0 25 50 75 Temperature Topt(C) 100
1-5) DC/DC Supply Current vs. Input Voltage
1-6) DC/DC Output Waveform R5220x121A
CIN=COUT=Ceramic 10F,L=4.7H VIN=3.6V,IOUT=300mA 1.26
400 380 360 340 320 300 280 260 240 220 200 -50
VIN=VCE=VMODE
Output Ripple Voltage(V)
Supply Current ISS(A)
1.24 1.22 1.20 1.18 1.16 1.14
-25
0 25 50 Input Voltage(V)
75
100
0
1
2 3 Time(s)
4
5
13
R5220x
1-7) DC/DC Output Voltage vs. Temperature R5220x181A
1.90 1.88 1.86 1.84 1.82 1.80 1.78 1.76 1.74 1.72 1.70 -50 IOUT=50mA
R5220x181A
1.86
Output Ripple Voltage(V)
1.82 1.80 1.78 1.76 1.74 0 1 2 3 Time(s) 4 5
Output Voltage VOUT(V)
1.84
-25
0 25 50 75 Temperature Topt(C)
100
1-8) DC/DC Oscillator Frequency vs. Temperature
1400 1350 VIN=3.6V
1-9) DC/DC Oscillator Frequency vs. Input Voltage R5220x181A
1350
Frequency fosc(kHz)
1300 1250 1200 1150 1100 1050 1000 -50 -25 0 25 50 75 Temperature Topt(C) 100
Frequency fosc(kHz)
1300 1250 1200 1150 1100 1050 2.5
3.0
3.5 4.0 4.5 Input Voltage(V)
5.0
5.5
1-10) Soft-start time vs. Temperature
250
1-11) UVLO Detector Threshold/ Released Voltage vs. Temperature
2.8 2.7
Soft-Start Time (s)
VDD Voltage Level(V)
200 150 100 DC/DC_VSET : 1.0V 50 0 -50 DC/DC_VSET : 1.8V -25 0 25 50 75 Temperature Topt(C) 100
2.6 2.5 2.4 2.3 2.2 2.1 2.0 -50 -25
UVLO Detector Threshold UVLO Released Voltage
0 25 50 75 Temperature Topt(C)
100
14
R5220x
1-12) MODE Input Voltage vs. temperature
MODE Input Voltage VMODE(V)
0.8
1-13) Pch Transistor On Resistance vs. Temperature
0.8 VIN=3.6V
PchTr. On Resistance ()
0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 -50 -25 0 25 50 75 Temperature Topt(C) 100
0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 -50 -25 0 25 50 75 Temperature Topt(C) 100
1-14) Nch Transistor On Resistance vs. Temperature
VIN=3.6V 0.8
1-15) DC/DC Lx Current Limit vs. Temperature
R5220x131A
1200
NchTr. ON Resistance ()
0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 -50 -25 0 25 50 75 Temperature Topt(C) 100
400 -50 -25 0 25 50 75 Temperature Topt(C) 100
Lx Limit Current(mA)
1000
800
600
2) VR
2-1) VR Output Voltage vs. Output Current R5220x121A
1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 50 100 150 Output Current IOUT(mA) 200 VIN=2.8V VIN=3.6V VIN=5.5V 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0
R5220x181A
Output Voltage VOUT(V)
Output Voltage VOUT(V)
VIN=2.8V VIN=3.6V VIN=5.5V
50 100 150 Output Current IOUT(mA)
200
15
R5220x
2-2) VR Output Voltage vs. Input Voltage R5220x121A
1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 1 2 3 4 Input Voltage VIN(V) 5 6 IOUT=1mA IOUT=25mA IOUT=50mA 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 1
R5220x181A
Output Voltage VOUT(V)
Output Voltage VOUT(V)
IOUT=1mA IOUT=25mA IOUT=50mA 2 3 4 Input Voltage VIN(V) 5 6
2-3) VR Supply Current vs. Input Voltage R5220x121A
8.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 1 2 3 4 Input Voltage VIN(V) 5 6 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 1
R5220x181A
Supply Current ISS2(A)
Supply Current ISS2(A)
2 3 4 Input Voltage VIN(V)
5
6
2-4) VR Output Voltage vs. Temperature R5220x121A
1.24 1.84 1.23 1.22 1.21 1.20 1.19 1.18 1.17 1.16 -50 -25 0 25 50 75 Temperature Topt(C) 100 1.83 1.82 1.81 1.80 1.79 1.78 1.77 1.76 -50 -25
R5220x181A
Output Voltage VOUT(V)
Output Voltage VOUT(V)
0 25 50 75 Temperature Topt(C)
100
16
R5220x
2-5) VR Supply Current vs. Temperature R5220x121A
10 9 8 7 6 5 4 3 2 1 0 -50 10 9 8 7 6 5 4 3 2 1 0 -50
R5220x181A
Supply Current ISS2(A)
Supply Current ISS2(A)
VIN=3.6V VIN=5.5V -25 0 25 50 75 Temperature Topt(C) 100
VIN=3.6V VIN=5.5V -25 0 25 50 75 Temperature Topt(C) 100
2-6) Dropout Voltage vs. Output Current R5220x121A
800
1.86
Output Ripple Voltage(V)
R5220x181A
Dropout Voltage VDIF(V)
700 600 500 400 300 200 100 0 0 -40C 25C 85C 10 20 30 40 Output Current IOUT(mA) 50
1.84 1.82 1.80 1.78 1.76 1.74 0 1 2 3 Time(s) 4 5
2-7) Ripple Rejection vs. Input Voltage R5220x121A
Ripple 0.2Vp-p,IOUT=25mA, CIN=none,COUT=Ceramic10F 80 80
R5220x181A
Ripple 0.2Vp-p,IOUT=25mA, CIN=none,COUT=Ceramic10F
Ripple Rejection RR(dB)
60 50 40 30 20 10 f=400Hz f=1kHz f=10kHz f=100kHz
Ripple Rejection RR(dB)
70
70 60 50 40 30 20 10 f=400Hz f=1kHz f=10kHz f=100kHz
0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Input Voltage VIN(V)
0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Input Voltage VIN(V)
17
R5220x
2-8) VR Ripple Rejection vs. Frequency R5220x121A
VIN=2.2V+0.2Vp-p CIN=none COUT=Ceramic10F 100 90 80 70 60 50 40 30 20 10 0 0.1
R5220x181A
VIN=2.8V+0.2Vp-p CIN=none COUT=Ceramic10F 100 90 80 70 60 50 40 30 20 10 0 0.1
Ripple Rejection(dB)
Ripple Rejection(dB)
IOUT=50mA IOUT=25mA IOUT=1mA 1 10 Frequency f (kHz) 100
IOUT=50mA IOUT=25mA IOUT=1mA 1 10 Frequency f (kHz) 100
2-9) Input Transient Response R5220x121A
IOUT=10mA CIN=none, COUT=Ceramic10F 1.28 1.26 5 4
1.88 1.86
R5220x181A
IOUT=10mA CIN=none, COUT=Ceramic10F 5 4 3 2 1 0
Output Voltage(V)
Output Voltage(V)
Input Voltage(V)
1.24 1.22 1.20 1.18 1.16 0.0
3 2 1 0
1.84 1.82 1.80 1.78 1.76 0.0
0.2
0.4 0.6 Time T(ms)
0.8
1.0
0.2
0.4 0.6 Time T(ms)
0.8
1.0
2-10) Load Transient Response R5220x121A
VIN=3.6V,CIN=COUT=Ceramic10F 1.40 1.35 0mA 10mA 0mA 50 25 1.40 1.35 1mA
R5220x121A
VIN=3.6V,CIN=COUT=Ceramic10F 50 25mA 1mA 25 0
Load Current(mA)
Output Voltage(V)
Output Voltage(V)
1.30 1.25 1.20 1.15 1.10 0.0
0
1.30 1.25 1.20 1.15 1.10 0.0
0.8
1.6 2.4 Time T(s)
3.2
4.0
0.8
1.6 2.4 Time (s)
3.2
4.0
18
Load Current(mA)
Input Voltage(V)
R5220x
R5220x181A
VIN=3.6V,CIN=COUT=Ceramic10F 2.00 1.95 0mA 10mA 0mA 50 25 2.00 1.95 1mA 25mA 1mA
R5220x181A
VIN=3.6V,CIN=COUT=Ceramic10F 50 25 0
Load Current(mA)
Output Voltage(V)
1.90 1.85 1.80 1.75 1.70 0.0
Output Voltage(V)
0
1.90 1.85 1.80 1.75 1.70 0.0
0.8
1.6 2.4 Time T(s)
3.2
4.0
0.8
1.6 2.4 Time T(s)
3.2
4.0
3) Mode Transient Response between VR and DC/DC
3-1) VR to DC/DC Mode Transient Response R5220x151A
VIN=3.6V,IOUT=0.5mA CIN=COUT=Ceramic10F 1.60 1.55 20 16
3-2) DC/DC to VR Mode Transient Response R5220x151A
VIN=3.6V,IOUT=0.5mA CIN=COUT=Ceramic10F 1.60 1.55 20 16 VOUT
Output Voltage(V)
MODE(V)
1.45 1.40 1.35 1.30 0 200 400 600 Time (s) 800 1000 VMODE
8 4 0
1.45 1.40 VMODE 1.35 1.30 0 200 400 600 Time (s) 800 1000
8 4 0
MODE(V)
1.50
VOUT
Output Voltage(V)
12
1.50
12
Load Current(mA)
19
PACKAGE INFORMATION
PE-SON-6-0510
*
SON-6
Unit: mm
PACKAGE DIMENSIONS
6 4
2.60.2 3.00.15
0.85MAX.
1
0.130.05
Bottom View
0.1 0.5 0.20.1
Attention: Tab suspension leads in the parts have VDD or GND level.(They are connected to the reverse side of this IC.) Refer to PIN DISCRIPTION. Do not connect to other wires or land patterns.
TAPING SPECIFICATION
0.20.1 1.5+0.1 0 4.00.1 2.00.05
(0.3)
3
1.34
(0.3)
1.60.2
3.50.05
1.750.1 8.00.3
1.9 1.7MAX. 4.00.1 1.10.1
TR User Direction of Feed
TAPING REEL DIMENSIONS
(1reel=3000pcs)
11.41.0 9.00.3
210.8
0 180 -1.5
20.5
130.2 +1 60 0
3.2
PACKAGE INFORMATION
PE-SON-6-0510
POWER DISSIPATION (SON-6)
This specification is at mounted on board. Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the measurement at the condition below: Measurement Conditions Standard Land Pattern Environment Board Material Board Dimensions Copper Ratio Through-hole Measurement Result
(Topt=25C,Tjmax=125C)
Mounting on Board (Wind velocity=0m/s) Glass cloth epoxy plactic (Double sided) 40mm x 40mm x 1.6mm Top side : Approx. 50% , Back side : Approx. 50% 0.5mm x 44pcs
Standard Land Pattern Power Dissipation Thermal Resistance
600
Free Air 250mW -
500mW ja=(125-25C)/0.5W=200C/W
Power Dissipation PD(mW)
500 400 300 200 100 0 0 25 250
On Board
40
Free Air
50 75 85 100 Ambient Temperature (C)
125
150
Power Dissipation
40
Measurement Board Pattern IC Mount Area (Unit : mm)
RECOMMENDED LAND PATTERN
0.25 0.5
1.05 0.75
(Unit: mm)
PACKAGE INFORMATION
PE-PLP2514-6-0610
*
PLP2514-6
Unit: mm
PACKAGE DIMENSIONS
A 1.4 B 0.200.05 4 0.50 6
0.05
0.250.05
x4
0.250.05
C
3 1
0.
INDEX
1.100.05
0.6max.
Bottom View
Attention: Tabs or Tab suspension leads in the parts have VDD or GND level.(They are connected to the reverse side of this IC.) Refer to PIN DISCRIPTION. Do not connect to other wires or land patterns.
S
0.05 S
TAPING SPECIFICATION
0.20.1 1.5 +0.1 0 4.00.1 2.00.05 1.750.1 3.50.05 3.0 1.10.1 1.75 1.2max. 4.00.1 11.41.0 9.00.3 130.2 8.00.3 180 0 -1.5 60 +1 0
TR
User Direction of Feed
TAPING REEL DIMENSIONS
(1reel=5000pcs)
210.8
20.5
1.40.05
05
2.5
0.05
PACKAGE INFORMATION
PE-PLP2514-6-0610
POWER DISSIPATION (PLP2514-6)
This specification is at mounted on board. Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the measurement at the condition below: Measurement Conditions Standard Land Pattern Environment Board Material Board Dimensions Copper Ratio Through-hole Measurement Result
(Topt=25C,Tjmax=125C)
Mounting on Board (Wind velocity=0m/s) Glass cloth epoxy plactic (Double sided) 40mm x 40mm x 1.6mm Top side : Approx. 50% , Back side : Approx. 50% 0.54mm x 30pcs
Standard Land Pattern Power Dissipation Thermal Resistance
1200
730mW ja=(125-25C)/0.73W=137C/W
40
Power Dissipation PD(mW)
1000 800 730 600 400 200 0 0 25 50 75 85 100 Ambient Temperature (C) 125 150 On Board
40
Measurement Board Pattern IC Mount Area Unit : mm
Power Dissipation
RECOMMENDED LAND PATTERN (PLP2514-6)
0.5 0.25 0.25
0.9
1.4
0.25
0.25 0.5
0.25
0.25 0.5
0.25
0.5
(Unit: mm)
MARK INFORMATION
ME-R5220D-070810
R5220D SERIES MARK SPECIFICATION * SON-6
1
, ,
2 4
: Product Code (refer to Part Number vs. Product Code) : Lot Number
1 3
2 4
3
*
Part Number vs. Product Code
Part Number Product Code
1 2
Part Number R5220D101B R5220D111B R5220D121B R5220D131B R5220D141B R5220D151B R5220D161B R5220D171B R5220D181B R5220D191B R5220D201B R5220D211B R5220D221B R5220D231B R5220D241B R5220D251B R5220D261B R5220D271B R5220D281B R5220D291B R5220D301B R5220D311B R5220D321B R5220D331B R5220D261B5
Product Code
1 2
Part Number R5220D012A R5220D022A R5220D032A R5220D042A R5220D012B R5220D022B R5220D032B R5220D042B
Product Code
1 2
Set VOUT DC/DC 1.2V 1.5V 1.3V 1.5V 1.2V 1.5V 1.3V 1.5V VR 1.1V 1.1V 1.05V 1.0V 1.1V 1.1V 1.05V 1.0V
R5220D101A R5220D111A R5220D121A R5220D131A R5220D141A R5220D151A R5220D161A R5220D171A R5220D181A R5220D191A R5220D201A R5220D211A R5220D221A R5220D231A R5220D241A R5220D251A R5220D261A R5220D271A R5220D281A R5220D291A R5220D301A R5220D311A R5220D321A R5220D331A R5220D261A5
C C C C C C C C C C C C C C C C C C C C C C C C C
A B C D E F G H J K L M N P Q R S T U V 0 1 2 3 4
D D D D D D D D D D D D D D D D D D D D D D D D D
A B C D E F G H J K L M N P Q R S T U V 0 1 2 3 4
C C C C D D D D
W X Y Z W X Y Z
MARK INFORMATION
ME-R5220K-070810
R5220K SERIES MARK SPECIFICATION * PLP2514-6
1 5
1 2 3
to ,
6
4
: Product Code (refer to Part Number vs. Product Code) : Lot Number
4
5
6
*
Part Number vs. Product Code
Product Code
1 2 3 4
Part Number R5220K101A R5220K111A R5220K121A R5220K131A R5220K141A R5220K151A R5220K161A R5220K171A R5220K181A R5220K191A R5220K201A R5220K211A R5220K221A R5220K231A R5220K241A R5220K251A R5220K261A R5220K271A R5220K281A R5220K291A R5220K301A R5220K311A R5220K321A R5220K331A
Part Number R5220K101B R5220K111B R5220K121B R5220K131B R5220K141B R5220K151B R5220K161B R5220K171B R5220K181B R5220K191B R5220K201B R5220K211B R5220K221B R5220K231B R5220K241B R5220K251B R5220K261B R5220K271B R5220K281B R5220K291B R5220K301B R5220K311B R5220K321B R5220K331B
Product Code
1 2 3 4
Part Number R5220K012A R5220K022A R5220K032A R5220K042A R5220K012B R5220K022B R5220K032B R5220K042B
Product Code
1 2 3 4
Set VOUT DC/DC 1.2V 1.5V 1.3V 1.5V 1.2V 1.5V 1.3V 1.5V VR 1.1V 1.1V 1.05V 1.0V 1.1V 1.1V 1.05V 1.0V
S S S S S S S S S S S S S S S S S S S S S S S S
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 2
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 6
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5
T T T T T T T T T T T T T T T T T T T T T T T T
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 2
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 6
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5
S S S S T T T T
0 0 0 0 0 0 0 0
1 2 3 4 1 2 3 4
2 2 2 2 2 2 2 2
R5220K261A5 S
R5220K261B5 T

▲Up To Search▲

Price & Availability of R5220D231A

	To Download R5220D231A Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .