LM317MG-AA3-R

UNISONIC TECHNOLOGIES CO., LTD LM317M MEDIUM CURRENT 1.2V TO 37V ADJUSTABLE VOLTAGE REGULATOR DESCRIPTION The UTC LM317M is an adjustable 3-terminal positive voltage regulator, designed to supply 500mA of output current with voltage adjustable from 1.2V ~ 37V. LINEAR INTEGRATED CIRCUIT FEATURES *Output Voltage Adjustable From 1.2V ~ 37V *Output Current In Excess of 500mA *Internal Thermal Overload Protection *Internal Short Circuit Current Limiting *Output Transistor Safe Area Compensation ORDERING INFORMATION Ordering Number Lead Free Halogen Free LM317ML-AA3-R LM317MG-AA3-R LM317ML-TA3-T LM317MG-TA3-T LM317ML-TN3-R LM317MG-TN3-R LM317ML-TN3-T LM317MG-TN3-T Note: Pin Assignment: I:VIN O:VOUT Package SOT-223 TO-220 TO-252 TO-252 Pin Assignment 1 2 3 ADJ O I ADJ O I ADJ O I ADJ O I Packing Tape Reel Tube Tape Reel Tube www.unisonic.com.tw Copyright © 2010 Unisonic Technologies Co., Ltd 1 of 5 QW-R101-014,G LM317M BLOCK DIAGRAM LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R101-014,G LM317M ABSOLUTE MAXIMUM RATINGS LINEAR INTEGRATED CIRCUIT PARAMETER SYMBOL RATINGS UNIT Input-Output Voltage Differential VIN-VOUT 40 V Power Dissipation PD Internally Limited W Junction Temperature TJ +125 ℃ Operating Temperature TOPR -40 ~ +85 ℃ Storage Temperature TSTG -40 ~ +150 ℃ Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. THERMAL DATA PARAMETER Junction to Ambient SOT-223 TO-220 TO-252 SOT-223 TO-220 TO-252 SYMBOL θJA RATINGS 245 70 92 15 5 5 UNIT ℃/W Junction to Case θJC ℃/W ELECTRICAL CHARACTERISTICS (VIN-VOUT=5V, IOUT=0.1A, Ta=25℃, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS 3V≦VIN-VOUT≦40V Line Regulation ΔVOUT/VOUT VOUT≦5V Load Regulation ΔVOUT 10mA≦IOUT≦0.5A VOUT≧5V Adjustable Pin Current Adjustable Pin Current Change Reference Voltage Temperature Stability Minimum Load Current for Regulation Maximum Output Current RMS Noise vs. %of VOUT IADJ ΔIADJ VREF IL(MIN) IO(MAX) eN 3V≦VIN-VOUT≦40V, 10mA≦IOUT≦0.5A, PD＜7.5W 3V≦VIN-VOUT≦40V, 10mA≦IOUT≦0.5A, PD＜7.5W TMIN≦TJ≦TMAX MIN TYP 0.01 5 0.1 50 0.2 1.20 1.25 0.7 3.5 0.2 0.003 65 80 MAX 0.04 25 0.5 100 5 1.30 10 UNIT %/V mV % μA μA V %/VOUT mA A %/VOUT dB VIN-VOUT=40V VIN-VOUT=40V, PD≦7.5W 10HZ≦f≦10KHZ CADJ=0 Ripple Rejection RR VOUT=10V,f=120HZ CADJ=10μF Note: CADJ is connected between Adjust pin and Ground. 0.1 66 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 5 QW-R101-014,G LM317M APPLICATION CIRCUITS LINEAR INTEGRATED CIRCUIT VIN 3 UTC LM317M 2 1 VADJ 240 D1 1N4001 50k R2 10 F VOUT VIN 3 UTC LM317M 2 1 R1 R2 IOUT VoUT IADJ 1.25V VREF )+IADJ= R1 R1 IO(MAX)=( IO(MIN)=( VREF 1.25V )+IADJ= R1+R2 R1+R2 5mA