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3A Low Voltage-Low Dropout CMOS Regulator Key Features
n Low-Dropout Regulator Supports Input Voltages Down to 1.4V n Output Voltage Available in 0.9V,1.0V, 1.2V, 1.5V, 1.8V, 2.5V,2.8V,2.85V,3.0V,3.3V n Low Dropout Voltage:300mV@ 3A n Stable with a Ceramic Output Capacitor of 1.0uF or Higher n Low Quiescent Current n Current Limit n Over Temperature Shutdown n Short Circuit Current Protection n Low Temperature Coefficient n Standard TO-263 , TO-220 and SOP-8 (Exposed Pad) Packages n Pb-Free Package
PAM3130
General Description
The PAM3130 is a 3A CMOS LDO regulator that features a low quiescent current, ultra low input, output, and dropout voltages, as well as over temperature protection. It is available in TO-263 , TO-220 and SOP-8(Exposed Pad) packages. The fixed output voltage of the PAM3130 is set at the factory and trimmed to 2.0%. The PAM3130 is stable with a ceramic output capacitor of 1.0uF or higher. This family of regulators can provide either a stand-alone power supply solution or act as a post regulator for switch mode power supplies. They are particularly well suited for applications requiring low input and output voltages.
Applications
n DSP, FPGA, and Microprocessor Power Supplies n 1.2V Core Voltage for DSPs n SATA Power Supply n LCD TV/ Monitors n Wireless Devices n Communication Devices n Portable Electronics n Post Regulator for SMPS
Typical Application
R P 10K
IN
VIN VOUT
OUT
IN
CO 2.2uF
PAM3130
C IN 4.7uF
GND
VIN EN C1 4.7uF GND
PAM3130
PWRGD VOUT OUT C2 2.2uF SENSE
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3A Low Voltage-Low Dropout CMOS Regulator Block Diagram
IN OUT
IN OUT
PAM3130
OverCurrent Shutdown Thermal Shutdown
OverCurrent Shutdown Thermal Shutdown EN
R1 AMP
AMP
R1
R2
R2
GND
GND
Pin Configuration & Marking Information
Top View TO-220
P3130 V F AT Y W
V: Voltage Code F: Internal Code A: Assembly Code T: Testing Code Y: Year W: Weekly
1
2
3
Pin Number 1 2 3
Name VIN GND VOUT
Function Input Ground(Heatsink) Output
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3A Low Voltage-Low Dropout CMOS Regulator Pin Configuration & Marking Information(continued)
Top View TO-263-5L
PAM3130
P3130 V F AT Y W
V: Voltage Code F: Internal Code A: Assembly Code T: Testing Code Y: Year W: Weekly
1
2
345
Pin Number 1 2 3 4 5
Name VIN EN GND PWRGD/SENSE VOUT
Function Input Enable Pin GroundHeatsink Power Good/Sense Output
Top View SOP-8(EPD) 8 7 6 5
P3130 V F AT Y W
V: Voltage Code F: Internal Code A: Assembly Code T: Testing Code Y: Year W: Weekly
1
2
3
4
Name GND VIN EN GND PWRGD SENSE VOUT GND Function Ground Input Enable Pin Ground Power Good Sense Output Ground
Pin Number 1 2 3 4 5 6 7 8
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3A Low Voltage-Low Dropout CMOS Regulator Absolute Maximum Ratings
PAM3130
These are stress ratings only and functional operation is not implied . Exposure to absolute maximum ratings for prolonged time periods may affect device reliability . All voltages are with respect to ground . Input Voltage...............................................4.0V Output Pin Voltage.....................-0.3V to V IN +0.3V Operation Temperature Range........... -40 to 85 Operation Junction Temperature...... -40 to 125 Maximum Output Current......................P D/(V IN-V O) Storage Temperature..................... -65 to 150 Maximum Junction Temperature..................150 Soldering Temperature.......................300, 5sec
Recommended Operating Conditions
Supply Voltage Range.......................1.4V to 3.6V Operation Temperature Range...........-40 to 85 Junction Temperature Range.......... -40 to 125
Thermal Information
Parameter Thermal Resistance (Junction to Case) Thermal Resistance (Junction to Ambient) Symbol JC Package TO-263 TO-220 SOP-8 TO-263 JA TO-220 SOP-8 TO-263 Internal Power Dissipation PD TO-220 Maximum 7 7 90 60 50 11 2800 3000
Unit
/W
mW
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3A Low Voltage-Low Dropout CMOS Regulator Electrical Characteristic
V IN = V O+0.5V, T A=25 OC, C IN =4.7uF, C O=2.2uF, unless otherwise noted.
Parameters Input Voltage Range Output Voltage Accuracy Symbol VIN Vo Io=100mA Vo=0.9V IO=500mA Dropout Voltage VDROP IO=3.0A Vo=1.0V 2.5V>Vo1.2V Vo2.5V Vo=0.9V Vo=1.0V 2.5V>Vo1.2V Vo2.5V Short Circuit Current Output Current Quiescent Current Ground Pin Current ISC IO IQ IGND Io=0mA Io=1mA to 3.0A Vo2.5V,Io=10mA Line Regulation LNR VIN =Vo+0.5V to Vo+1.5V Vo>2.5V,Io=10mA VIN =3.3V to 3.6V Load Regulation Over Temperature Shutdown Over Temperature Hysteresis Temperature Coefficient Power Supply Ripple Rejection Output Noise LDR OTS OTH TC f=100Hz PSRR Vn Io=100mA, Vo=1.5V f=1KHz f=10KHz f=10Hz to 100kHz Io=1mA to 3.0A,VIN=Vo+0.5V 0.5 150 50 40 55 55 35 40 uVrms dB 2 %/A ppm/ 0.5 1.0 %/V Vo < 0.3V 3.0 90 Test Conditions MIN Note 1 -2 330 220 50 40 500 400 350 300 1.0 Note 2 150 1.0 A A uA mA TYP MAX 3.6 2 500 400 200 150 mV UNITS V %
PAM3130
Note1: The minimum input voltage ( V IN(MIN)) of the PAM3130 is determined by output voltage and dropout voltage. The minimum input voltage is defined as : V IN(MIN)=V O+V drop Note 2: Output current is limited by P D, maximum I O=P D/( V IN(MAX)-V O).
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3A Low Voltage-Low Dropout CMOS Regulator Typical Performance Characteristics
T A=25 OC, C IN =4.7uF, C O=2.2uF, unless otherwise noted. 1. Output Voltage vs Input Voltage Vo=0.9V
1 0.9
PAM3130
1 0.9
Vo=0.9V
Output Voltage(V)
0.8 0.7 0.6 0.5 0.4 0.3 0.8 1.2 1.6 2 2.4
Io=1.5A Io=500mA
Output Voltage(V)
Io=10mA
0.8 0.7 0.6 0.5 0.4 0.3 IO=10mA,TA=25 Io=10mA,TA=85
2.8
3.2
3.6
0.8
1.2
1.6
2
2.4
2.8
3.2
3.6
Input Voltage(V)
Input Voltage(V)
1.7 1.5
Vo=1.5V
1.7 1.5
Vo=1.5V
Output Voltage(V)
Output Voltage(V)
1.3 1.1 0.9 0.7 0.5 0.3 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 Input Voltage(V) Io=1.5A Io=10mA Io=500mA
1.3 1.1 0.9 0.7 0.5 0.3 0.8 1.2
Io=10mA,TA=25
Io=10mA,TA=85
1.6
2
2.4
2.8
3.2
3.6
Input Voltage(V)
3 2.5
Vo=2.5V
3
Vo=2.5V
Io=10mA 2 1.5 1 0.5 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 Input Voltage(V) Io=500mA Io=1.5A
Output Voltage(V)
2.5 2 1.5 1
Io=10mA,TA=85 Io=10mA,TA=25
Output Voltage(V)
0.5 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 Input Voltage(V)
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3A Low Voltage-Low Dropout CMOS Regulator Typical Performance Characteristics(continued)
2. Output Voltage vs Output Current
0.96 0.94
PAM3130
Vo=0.9V
0.915 0.905
3. Output Voltage vs Temperature Vo=0.9V,V IN=3.3V
Output Voltage(V)
Output Voltage(V)
0.92 0.9 0.88 0.86 0.84 0.82 0.8 0 500 1000 1500 2000 2500 3000 Output Current(mA) VIN=1.5V VIN=2.5V VIN=3.3V
0.895 0.885 0.875 0.865 0.855 0 30 60 Io=10mA
Io=500mA
90
120
150
Temperature()
1.54 1.52
Vo=1.5V
1.52 1.5
Vo=1.5V,V IN=3.3V
Output Voltage(V)
1.5 1.48 1.46 1.44 1.42 1.4 0 500 1000 1500 2000 2500 3000 Output Current(mA)
VIN=2.0V VIN=2.5V VIN=3.3V
Output Voltage(V)
1.48 1.46 1.44 1.42 1.4 0
Io=10mA
Io=500mA
30
60
90
120
150
Temperature()
2.56 2.54
Vo=1.5V
2.55 2.5
Vo=2.5V,V IN=3.3V
Output Voltage
2.52 2.5 2.48 2.46 2.44 2.42 2.4 0 500 1000 1500 2000 2500 3000 Output Current(mA)
VIN=3.0V VIN=3.3V VIN=3.6V
Voltage(V)
2.45 2.4 2.35 2.3
0
Io=10mA
Io=500mA
30
60
90
120
150
Temperature()
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3A Low Voltage-Low Dropout CMOS Regulator Typical Performance Characteristics(continued)
100
PAM3130
4. Quiescent Current vs Input Voltage
5. Ground Current vs Input Voltage
140 120
Io=1.5A Io=500mA
Quiescent Current(uA)
90 80 70 60 50 40 1.8 2.1 2.4 2.7 3 3.3 3.6 Input Voltage(V)
Io=0mA,TA=25 Io=0mA,TA=85
Ground Current(uA)
100 80 60 40 20 1.8 2.1 2.4
Io=10mA
2.7
3
3.3
3.6
Input Voltage(V)
350 300
6. Ground Current vs Output Current
7. Ground Current vs Temperature
90 VIN=3.3V,Io=10mA 85 80 75 70 65 VIN=2.5V,Io=10mA
Ground Current(uA)
250 200 150 100 50 0 0 500 VIN=2V 1000 1500 2000 2500 3000 VIN=2.5V VIN=3.3V
Ground Current(uA)
0
30
60
90
120
150
Output Current(mA)
Temperature()
450 400
8. Dropout Voltage vs Output Current
450 400 350 300 250 200 150 100 50 0
0 500 1000 1500 2000 2500 3000
9. Dropout Voltage vs Temperature
Dropout Voltage(mV)
300 250 200 150 100 50 0
Vo=2.5V Vo=0.9V Vo=1.5V
Dropout Voltage
350
Vo=0.9V,Io=500mA Vo=1.5V,Io=500mA Vo=2.5V,Io=500mA
0
30
60
90
120
150
Output Voltage(mA)
Temperature()
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3A Low Voltage-Low Dropout CMOS Regulator Typical Performance Characteristics(continued)
10. Ripple Rejection vs Frequency
+0 -10 -20 -30 d B -40 -50 -60 -70 -80 10
PAM3130
11. Load Transient Response
Io DC Coupling Io=500mA Io=100mA Vo AC Coupling
Io=1mA
20 50 100 200 500 1k Hz 2k 5k 10k 20k 50k 100k
Vo=0.9V,V IN=2.5V,Vpp=1V
+0 -10 -20 -30 d B -40 -50 -60 -70 -80 10
Vo=1.5V,V IN=3.3V, Io=1mA to 3.0A
Io=500mA
Io=100mA
Io DC Coupling Vo AC Coupling
Io=1mA
20
50
100
200
500
1k Hz
2k
5k
10k
20k
50k 100k
Vo=1.5V,V IN=2.5V,Vpp=1V
+0 -10 -20 -30 d B -40 -50 -60 -70 -80 10
Vo=1.5V,V IN=3.3V, Io=1mA to 1.0A
Io=500mA
Io=100mA
Io DC Coupling Vo AC Coupling
Io=1mA
20
50
100
200
500
1k Hz
2k
5k
10k
20k
50k 100k
Vo=2.5V,V IN=3.3V,Vpp=0.3V
Vo=1.5V,V IN=3.3V, Io=1A to 3.0A
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3A Low Voltage-Low Dropout CMOS Regulator Typical Performance Characteristics(continued)
12. Line Transient Response
PAM3130
V IN DC Coupling
Vo AC Coupling
Vo=1.5V,Io=100mA, V IN=2.0V to 3.3V
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3A Low Voltage-Low Dropout CMOS Regulator Application Information
T h e PA M 3 1 3 0 f a m i l y o f l o w - d r o p o u t ( L D O ) regulators have several features that allow them to apply to a wide range of applications. The family operates with very low input voltage (1.4V) and low dropout voltage (typically 300mV at full load), making it an efficient stand-alone power supply or post regulator for battery or switch mode power supplies. The 3A output current make the PAM3130 family suitable for powering many microprocessors and FPGA supplies. The PAM3130 family also has low output noise (typically 40VRMS with 2.2F output capacitor), making it ideal for use in telecom equipment. External Capacitor Requirements A 2.2F or larger ceramic input bypass capacitor, connected between V IN and GND and located close to the PAM3130, is required for stability. A 1.0uF minimum value capacitor from V O to GND is also required. To improve transient response, noise rejection, and ripple rejection, an additional 10F or larger, low ESR capacitor is recommended at the output. A higher value, low ESR output capacitor may be necessary if large, fast-rise-time load transients are anticipated and the device is located several inches from the power source, especially if the minimum input voltage of 1.4 V is used. Regulator Protection The PAM3130 features internal current limiting, thermal protection and short circuit protection. During normal operation, the PAM3130 limits output current to about 4.5A. When current limiting engages, the output voltage scales back linearly until the over current condition ends. While current limiting is designed to prevent gross device failure, care should be taken not to exceed the power dissipation ratings of the package. If the temperature of the device exceeds 150C, thermalprotection circuitry will shut down. Once the device has cooled down to approximately 50C below the high temp trip point, regulator operation resumes. The short circuit current of the PAM3130 is about 1A when its output pin is shorted to ground. Thermal Information The amount of heat that an LDO linear regulator generates is: P D=(V IN-V O)I O. All integrated circuits have a maximum allowable junction temperature (T J max) above which normal operation is not assured. A system designer must design the operating environment so that the operating junction temperature (T J) does not exceed the maximum junction temperature (T J max). The two main environmental variables that a designer can use to improve thermal performance are air flow and external heatsinks. The purpose of this information is to aid the designer in determining the proper operating environment for a linear regulator that is operating at a specific power level. In general, the maximum expected power (P D(max)) consumed by a linear regulator is computed as: PDmax= (VI (avg)-VO (avg))xIO (avg)+VI (avg)xI (Q ) (1) Where: l V I (avg) is the average input voltage. l V O(avg) is the average output voltage. l I O(avg) is the average output current. l I (Q) is the quiescent current. For most LDO regulators, the quiescent current is insignificant compared to the average output current; therefore, the term V I(avg) xI (Q) can be neglected. The operating junction temperature is computed by adding the ambient temperature (T A) and the increase in temperature due to the regulator' s power dissipation. The temperature rise is computed by multiplying the maximum expected power dissipation by the sum of the thermal resistances between the junction and the case ( R JC), the case to heatsink (R CS), and t h e h e a t s i n k t o a m b i e n t ( R SA) . T h e r m a l resistances are measures of how effectively an object dissipates heat. Typically, the larger the device, the more surface area available for power dissipation so that the object 's thermal resistance will be lower.
PAM3130
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3A Low Voltage-Low Dropout CMOS Regulator Ordering Information
PAM3130
PAM3130 X X X X
Output Voltage Number of Pins Package Type Pin Configuration
Pin Configuration A Type 1. VIN 2. GND 3. VOUT B Type 1. VIN 2. EN 3. GND 4. PWRGD 5. VOUT C Type 1. VIN 2. EN 3. GND 4. SENSE 5. VOUT D Type 1. GND 2. VIN 3. EN 4. GND 5. PWRGD 6. SENSE 7. VOUT 8. GND Package Type F: TO-220 M: TO-263 E: SOP-8 Number of Pins A: 3 B: 5 C: 8 Output Voltage 090: 0.9V 100: 1.0V 120: 1.2V 150: 1.5V 180: 1.8V 250: 2.5V 280: 2.8V 285: 2.85V 300: 3.0V 330: 3.3V
Please consult PAM sales office or authorized Rep ./ Distributor for output voltage and package type availability .
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3A Low Voltage-Low Dropout CMOS Regulator Ordering Information
Part Number PAM3130AFA090 PAM3130BMB090 PAM3130CMB090 PAM3130DEC090 PAM3130AFA100 PAM3130BMB100 PAM3130CMB100 PAM3130DEC100 PAM3130AFA120 PAM3130BMB120 PAM3130CMB120 PAM3130DEC120 PAM3130AFA150 PAM3130BMB150 PAM3130CMB150 PAM3130DEC150 PAM3130AFA180 PAM3130BMB180 Output Voltage 0.9V 0.9V 0.9V 0.9V 1.0V 1.0V 1.0V 1.0V 1.2V 1.2V 1.2V 1.2V 1.5V 1.5V 1.5V 1.5V 1.8V 1.8V Marking P3130Z FATYW P3130Z FATYW P3130Z FATYW P3130Z FATYW P3130Y FATYW P3130Y FATYW P3130Y FATYW P3130Y FATYW P3130B FATYW P3130B FATYW P3130B FATYW P3130B FATYW P3130C FATYW P3130C FATYW P3130C FATYW P3130C FATYW P3130E FATYW P3130E FATYW Package Type TO-220 TO-263-5L TO-263-5L SOP-8 TO-220 TO-263-5L TO-263-5L SOP-8 TO-220 TO-263-5L TO-263-5L SOP-8 TO-220 TO-263-5L TO-263-5L SOP-8 TO-220 TO-263-5L Standard Package
PAM3130
50Units/Tube 800Units/Tape&Reel 800Units/Tape&Reel 2,500Units/Tape&Reel 50Units/Tube 800Units/Tape&Reel 800Units/Tape&Reel 2,500Units/Tape&Reel 50Units/Tube 800Units/Tape&Reel 800Units/Tape&Reel 2,500Units/Tape&Reel 50Units/Tube 800Units/Tape&Reel 800Units/Tape&Reel 2,500Units/Tape&Reel 50Units/Tube 800Units/Tape&Reel
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3A Low Voltage-Low Dropout CMOS Regulator Ordering Information(continued)
Part Number PAM3130CMB180 PAM3130DEC180 PAM3130AFA250 PAM3130BMB250 PAM3130CMB250 PAM3130DEC250 PAM3130AFA280 PAM3130BMB280 PAM3130CMB280 PAM3130DEC280 PAM3130AFA285 PAM3130BMB285 PAM3130CMB285 PAM3130DEC285 PAM3130AFA300 PAM3130BMB300 PAM3130CMB300 PAM3130DEC300 Output Voltage 1.8V 1.8V 2.5V 2.5V 2.5V 2.5V 2.8V 2.8V 2.8V 2.8V 2.85V 2.85V 2.85V 2.85V 3.0V 3.0V 3.0V 3.0V Marking P3130E FATYW P3130E FATYW P3130G FATYW P3130G FATYW P3130G FATYW P3130G FATYW P3130H FATYW P3130H FATYW P3130H FATYW P3130H FATYW P3130I FATYW P3130I FATYW P3130I FATYW P3130I FATYW P3130J FATYW P3130J FATYW P3130J FATYW P3130J FATYW Package Type TO-263-5L SOP-8 TO-220 TO-263-5L TO-263-5L SOP-8 TO-220 TO-263-5L TO-263-5L SOP-8 TO-220 TO-263-5L TO-263-5L SOP-8 TO-220 TO-263-5L TO-263-5L SOP-8 Standard Package
PAM3130
800Units/Tape&Reel 2,500Units/Tape&Reel 50Units/Tube 800Units/Tape&Reel 800Units/Tape&Reel 2,500Units/Tape&Reel 50Units/Tube 800Units/Tape&Reel 800Units/Tape&Reel 2,500Units/Tape&Reel 50Units/Tube 800Units/Tape&Reel 800Units/Tape&Reel 2,500Units/Tape&Reel 50Units/Tube 800Units/Tape&Reel 800Units/Tape&Reel 2,500Units/Tape&Reel
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3A Low Voltage-Low Dropout CMOS Regulator Ordering Information(continued)
Part Number PAM3130AFA330 PAM3130BMB330 PAM3130CMB330 PAM3130DEC330 Output Voltage 3.3V 3.3V 3.3V 3.3V Marking P3130K FATYW P3130K FATYW P3130K FATYW P3130K FATYW Package Type TO-220 TO-263-5L TO-263-5L SOP-8 Standard Package
PAM3130
50Units/Tube 800Units/Tape&Reel 800Units/Tape&Reel 2,500Units/Tape&Reel
Please consult PAM sales office or authorized Rep ./ Distributor for output voltage and package type availability .
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3A Low Voltage-Low Dropout CMOS Regulator Outline Dimension TO-263-5L
L2
A c2 E
PAM3130
L4 c e b
Dimensions(Millimeter) Symbol MIN NOM MAX A 4.40 4.60 4.80 b 0.66 0.78 0.91 L4 0.00 0.15 0.30 c 0.36 0.43 0.50 L3 1.50 REF. L1 2.29 2.54 2.79 E 9.80 10.1 10.4 c2 1.25 1.35 1.45 L2 1.27 REF. D 8.6 8.8 9.0 e 1.70 REF. L 14.6 15.2 15.8 0 4 8
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L L1
D
3A Low Voltage-Low Dropout CMOS Regulator Outline Dimension TO-220
A c1 E
PAM3130
L4 D
A1
Dimensions(Millimeter) Symbol MIN NOM MAX A 4.40 4.60 4.80 b 0.76 0.88 1.0 D 8.60 8.80 9.00 c 0.36 0.43 0.50 E 9.80 10.1 10.4 L4 14.70 15.0 15.30 L5 6.20 6.40 6.60 c1 1.25 1.35 1.45 b1 1.17 1.32 1.47 L 13.25 13.75 14.25 e 2.54 REF. L1 2.60 2.74 2.89 o 3.71 3.93 3.96 A1 2.60 2.70 2.80
L1
L5 L
e c b b1
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3A Low Voltage-Low Dropout CMOS Regulator Outline Dimension
SOP-8
PAM3130
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