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| 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 (c) 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 JA RATINGS 245 70 92 15 5 5 UNIT /W Junction to Case JC /W ELECTRICAL CHARACTERISTICS (VIN-VOUT=5V, IOUT=0.1A, Ta=25, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS 3VVIN-VOUT40V Line Regulation VOUT/VOUT VOUT5V Load Regulation VOUT 10mAIOUT0.5A VOUT5V 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 IADJ VREF IL(MIN) IO(MAX) eN 3VVIN-VOUT40V, 10mAIOUT0.5A, PD7.5W 3VVIN-VOUT40V, 10mAIOUT0.5A, PD7.5W TMINTJTMAX 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 % A A V %/VOUT mA A %/VOUT dB VIN-VOUT=40V VIN-VOUT=40V, PD7.5W 10HZf10KHZ CADJ=0 Ripple Rejection RR VOUT=10V,f=120HZ CADJ=10F 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 Fig.4 Constant Current Application UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 5 QW-R101-014,G LM317M TYPICAL CHARACTERISTICS Load Regulation vs. temperature 0.2 LINEAR INTEGRATED CIRCUIT Adjustment Current vs. Temperature 60 Output Voltage Deviation, VOUT (%) Adjustment Current, IADJ (A) 125 0.0 -0.2 -0.4 -0.6 -0.8 -1.0 0 25 50 75 100 VIN=15V VOUT=10V 55 50 45 40 35 -50 -25 0 25 50 75 100 125 Temperature Temperature UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Min Output Current, IOUT (mA) Output Current, IOUT (A) 5 of 5 QW-R101-014,G |
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