PAM3110 1.5A Low Dropout Voltage CMOS Regulator Features General Description n Output Current: Up to 1.5A n Output Voltages:1.2V, 1.5V,1.8V, 2.5V, 3.3V and 5.0V n Stable with a Ceramic Output Capacitor n Dropout Voltage: [email protected] n Low Quiescent Current n Over Temperature Shutdown n Short Circuit Protection n Low Temperature Coefficient n Pb-Free Package The PAM3110 is a 1.5A CMOS LDO regulator that features a low quiescent current and low dropout voltages, as well as over temperature shutdown. The fixed output voltage of the PAM3110 is set at the factory and trimmed to ±1.5%. The PAM3110 is stable with a ceramic output capacitor of 4.7μF 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 suitable for applications requiring low input and output voltages. Applications n DSP, FPGA and Microprocessor Power Supplies n SATA Power Supply n LCD TV/Monitors n Wireless Devices n Communication Devices n Portable Electronics n Post Regulator for SMPS PAM3110 is available in SOT-223,TO-252 and TO-263-2L package. Typical Application Circuit Block Diagram IN V IN VIN VOUT Over Current Shut do wn PAM3110 CIN 4.7μF OUT VO GND Thermal Shut down C OUT 4.7 μF R1 AMP R2 GND Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 1 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Pin Configuration & Marking Information Top View SOT-223 Top View SOT-223 TAB:GND P3110V AXXYW 1 2 3 2 1 PAM3110ALAXXXR 3 Top View TO-263-2L P3110V AXXYW 3 2 1 PAM3110BLAXXXR 3 Top View TO-263-2L TAB:GND PAM3110AMBXXXR V: Voltage Code X : Internal Code Y: Year W: Week TAB:VOUT P3110V BXXYW P3110V BXXYW 2 1 PAM3110BBAXXXR Top View TO-252 TAB:GND P3110V AXXYW 2 P3110V BXXYW PAM3110ABAXXXR Top View TO-252 1 TAB:VOUT TAB:VOUT PAM3110BMBXXXR 2 3 1 3 Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 2 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Absolute Maximum Ratings 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...............................................6V Storage Temperature ....................- 65 °C to 150 °C Maximum Junction Temperature.................. 150 °C Lead Soldering Temperature (5sec)........... 300 °C Recommended Operating Conditions Supply Voltage Range.......................2.5V to 5.5V Ambient Temperature Range...........-40 °C to 85°C Junction Temperature Range........-40 °C to 125 °C Thermal Information Parameter Thermal Resistance (Junction to Case) Thermal Resistance (Junction to Ambient) Internal Power Dissipation @TA=25°C Symbol θJC θJA PD Package Maximum SOT-223 7 TO-252 TO-263 7 7 SOT-223 160 TO-252 TO-263 90 SOT-223 625 TO-252 1200 TO-263 2000 Unit °C/W 60 mW Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 3 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Electrical Characteristic V IN =V O +0.5V, T A =25°C, C IN =4.7 μF, C OUT =4.7 μF, unless otherwise noted. Parameters Symbol Test Conditions Input Voltage Range V IN Output Voltage Accuracy VO Dropout Voltage V DROP MIN TYP 2.5 IO=100mA 5.5 -1.5 1.5 IO =500mA Vo≥2.5V 200 IO =1.5A Vo≥2.5V 400 Short Circuit Current ISC Vo<0.3V 500 Quiescent Current IQ IO=0mA 75 Current Limit ILIM MAX UNITS V % mV mA 150 μA A 2 V O≤ 2.5V, Io=10mA Line Regulation LNR V IN =Vo+1.5V to Vo+2.5V V O> 2.5V, IO=10mA 0. 5 1 %/V 0.5 1 % V IN =Vo+0.5V to Vo+1.5V Load Regulation LDR Over Temperature Shutdown OTS 160 °C Over Temperature Hysteresis OTH 30 °C TC 40 ppm/°C Temperature Coefficient Power Supply Ripple Rejection PSRR IO=1mA to 100mA IO =100mA f=100Hz 55 f=1kHz 50 f=10kHz 35 dB Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 4 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Typical Performance Characteristics T A=25°C,C IN=4.7 μF,C OUT=4.7μF,unless otherwise noted. 1. Output Voltage vs Input Voltage 2. Output Voltage vs Output Current Vo=3.3V Vo=3.3V 3.36 3.35 3.35 3.34 3.33 3.3 3.25 3.32 3.31 3.3 3.2 3.15 3.1 Io=10mA 3.05 Io=500mA 3 3.29 3.28 3.27 2.95 3.25 3.5 3.75 4 4.25 4.5 4.75 5 5.25 5.5 Vin=5V 0 Input Voltage( V) 100 Vin=4.2V 3.26 3.25 3.24 Io=1.5A 3 Vin=3.6V 300 600 900 1200 1500 O utput Current(m A) 3. Quiescent Current vs Input Voltage 4. Quiescent Current vs Temperature 1 00 90 90 80 80 70 70 60 60 50 50 40 40 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 0 5.5 30 60 90 120 150 Tem perature(℃) Input Current(V) 5. Maximum Output Current vs Input Voltage 1.5 1.3 1.1 0.9 0.7 0.5 2.5 3 3.5 4 4.5 5 5.5 Input Voltage(V) Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 5 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Typical Performance Characteristics T A=25°C,C IN=4.7 μF, COUT=4.7μF,unless otherwise noted. 6. Safety Operation Area 7. Ripple Rejection vs Frequency +0 TT 1600 1400 1200 SOT-223 -10 TO-252 -20 TO-263 -30 1000 T Io=1.5A Io=500mA -40 d B 800 -50 -60 600 Io=10mA -70 400 -80 200 -90 0 0 1 2 3 Vi n-Vo ut(V) 4 5 -100 20 6 50 100 200 500 1k 2k 5k 10k 20k Hz Vo=3.3V,VIN =4.2V,Vpp=1V 8. Load Transient Response 9. Line Transient Response V IN DC Coupling Vo AC Coupling Vo AC Coupling Io DC Coupling Vo=3.3V, V IN=3.8V to 5V, Io=10mA Vo=3.3V ,V IN=5V, Io=0mA to 1.5A Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 6 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Application Information The PAM3110 family of low-dropout (LDO) regulators have several features that allow them to apply to a wide range of applications. The family operates with very low input voltage 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 1.5A output current make the PAM3110 family suitable for powering many microprocessors and FPGA supplies. 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 (TJ 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 ge ne r al , t he m a x im um ex p ec t ed po we r (P D (max)) consumed by a linear regulator is computed as: External Capacitor Requirements A 4.7µF or larger ceramic input bypass capacitor, connected between V IN and GND and located close to the PAM3110, is required for stability. A 4.7 μF minimum value capacitor from V O to GND is also required. To improve transient response, noise rejection, and ripple rejection, an additional 1 0 µF o r l a r g e r , l o w E S R c a p a c i t o r i s 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 2.5 V is used. PDMAX= (VI (avg)-V O (avg))×IO (avg)+V I(avg)×I (Q ) Where: l V I (avg) is the average input voltage. l V O(avg) is the average output voltage. l IO(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 (RθJC ), the case to heatsink (R θCS ), and the heatsink to ambient (RθSA ). Thermal 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. Regulator Protection The PAM3110 features internal current limiting, thermal protection and short circuit protection. During normal operation, the PAM3110 limits output current to about 2A. 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 150°C, thermal-protection circuitry will shut down. Once the device has cooled down to approximately 30°C below the high temp trip point, regulator operation resumes. The short circuit current of the PAM3110 is about 0.5A 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. Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 7 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Ordering Information PAM3110X X X xxx X Shipping Package Output Voltage Number of Pins Package Type Pin Configuration Pin Configuration Package Type Number of Pins B: SOT-223 A: 3 120: 1.2V 1. VIN L: TO-252 B: 2 150: 1.5V 2. GND M: TO-263 A Type Output Voltage 180: 1.8V 3. VOUT 250: 2.5V B Type 330: 3.3V 1. GND 500: 5.0V 2. VOUT 3. VIN (To be cont’d) Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 8 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Ordering Information Part Number Output Voltage PAM3110ABA120R 1.2V PAM3110BBA120R 1.2V PAM3110ALA120R 1.2V PAM3110BLA120R 1.2V PAM3110AMB120R 1.2V PAM3110BMB120R 1.2V PAM3110ABA150R 1.5V PAM3110BBA150R 1.5V PAM3110ALA150R 1.5V PAM3110BLA150R 1.5V PAM3110AMB150R 1.5V PAM3110BMB150R 1.5V PAM3110ABA180R 1.8V PAM3110BBA180R 1.8V PAM3110ALA180R 1.8V PAM3110BLA180R 1.8V PAM3110AMB180R 1.8V PAM3110BMB180R 1.8V PAM3110ABA250R 2.5V PAM3110BBA250R 2.5V PAM3110ALA250R 2.5V PAM3110BLA250R 2.5V PAM3110AMB250R 2.5V PAM3110BMB250R 2.5V Marking P3110B AXXYW P3110B BXXYW P3110B AXXYW P3110B BXXYW P3110B AXXYW P3110B BXXYW P3110C AXXYW P3110C BXXYW P3110C AXXYW P3110C BXXYW P3110C AXXYW P3110C BXXYW P3110E AXXYW P3110E BXXYW P3110E AXXYW P3110E BXXYW P3110E AXXYW P3110E BXXYW P3110G AXXYW P3110G BXXYW P3110G AXXYW P3110G BXXYW P3110G AXXYW P3110G BXXYW Package Type MOQ & Shipping Pckage SOT-223 2,500 Units/Tapes &Reel SOT-223 2,500 Units/Tapes &Reel TO-252 2,500 Units/Tapes &Reel TO-252 2,500 Units/Tapes &Reel TO-263-2L 800 Units/Tapes&Reel TO-263-2L 800 Units/Tapes&Reel SOT-223 2,500 Units/Tapes &Reel SOT-223 2,500 Units/Tapes &Reel TO-252 2,500 Units/Tapes &Reel TO-252 2,500 Units/Tapes &Reel TO-263-2L 800 Units/Tapes&Reel TO-263-2L 800 Units/Tapes&Reel SOT-223 2,500 Units/Tapes &Reel SOT-223 2,500 Units/Tapes &Reel TO-252 2,500 Units/Tapes &Reel TO-252 2,500 Units/Tapes &Reel TO-263-2L 800 Units/Tapes&Reel TO-263-2L 800 Units/Tapes&Reel SOT-223 2,500 Units/Tapes &Reel SOT-223 2,500 Units/Tapes &Reel TO-252 2,500 Units/Tapes &Reel TO-252 2,500 Units/Tapes &Reel TO-263-2L 800 Units/Tapes&Reel TO-263-2L 800 Units/Tapes&Reel Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 9 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Ordering Information Part Number Output Voltage PAM3110ABA330R 3.3V PAM3110BBA330R 3.3V PAM3110ALA330R 3.3V PAM3110BLA330R 3.3V PAM3110AMB330R 3.3V PAM3110BMB330R 3.3V PAM3110ABA500R 5.0V PAM3110BBA500R 5.0V PAM3110ALA500R 5.0V PAM3110BLA500R 5.0V PAM3110AMB500R 5.0V PAM3110BMB500R 5.0V Marking P3110K AXXYW P3110K BXXYW P3110K AXXYW P3110K BXXYW P3110K AXXYW P3110K BXXYW P3110L AXXYW P3110L BXXYW P3110L AXXYW P3110L BXXYW P3110L AXXYW P3110L BXXYW Package Type MOQ & Shipping Pckage SOT-223 2,500 Units/Tapes&Reel SOT-223 2,500 Units/Tapes&Reel TO-252 2,500 Units/Tapes&Reel TO-252 2,500 Units/Tapes&Reel TO-263-2L 800 Units /Tapes&Reel TO-263-2L 800 Units /Tapes&Reel SOT-223 2,500 Units/Tapes&Reel SOT-223 2,500 Units/Tapes&Reel TO-252 2,500 Units/Tapes&Reel TO-252 2,500 Units/Tapes&Reel TO-263-2L 800 Units /Tapes&Reel TO-263-2L 800 Units /Tapes&Reel Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 10 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Outline Dimension SOT-223 Dimensions( Millimeter) C l J Symbol MIN NOM MAX A 6 .70 7 .00 7 .30 C 2.90 3.00 3.10 D 0.02 0.06 0.10 E 0° 5° 10° I 0. 60 0. 70 0. 80 H 0.25 0.30 0.35 B 13°TYP J 2.30REF 1 6.30 6.50 6.70 2 6.30 6.50 6.70 3 3.30 3.50 3.70 4 3.30 3.50 3.70 5 1.40 1.60 1.80 3 1 E 4 2 Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 11 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Outline Dimension TO -252 Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 12 PAM3110 1.5A Low Dropout Voltage CMOS Regulator Outline Dimension TO -263-2L Power Analog Microelectronics, Inc www.poweranalog.com 06/2011 Rev2.2 13