UNISONIC TECHNOLOGIES CO., LTD LM317M LINEAR INTEGRATED CIRCUIT 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. 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 www.unisonic.com.tw Copyright © 2010 Unisonic Technologies Co., Ltd 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 1 of 5 QW-R101-014,G LM317M LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R101-014,G LM317M LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS 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 SYMBOL SOT-223 TO-220 TO-252 SOT-223 TO-220 TO-252 Junction to Ambient Junction to Case θJA θJC RATINGS 245 70 92 15 5 5 UNIT ℃/W ℃/W ELECTRICAL CHARACTERISTICS (VIN-VOUT=5V, IOUT=0.1A, Ta=25℃, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS 3V≦V Line Regulation ΔVOUT/VOUT IN-VOUT≦40V VOUT≦5V Load Regulation ΔVOUT 10mA≦IOUT≦0.5A VOUT≧5V Adjustable Pin Current IADJ Adjustable Pin Current Change ΔIADJ Reference Voltage VREF Temperature Stability Minimum Load Current for Regulation Maximum Output Current RMS Noise vs. %of VOUT 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 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. IL(MIN) IO(MAX) eN UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 1.20 0.1 66 TYP 0.01 5 0.1 50 MAX 0.04 25 0.5 100 UNIT %/V mV % μA 0.2 5 μA 1.25 1.30 V 0.7 3.5 0.2 0.003 65 80 10 %/VOUT mA A %/VOUT dB 3 of 5 QW-R101-014,G LM317M LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUITS VIN 3 VOUT UTC LM317M 2 1 VADJ 240 D1 1N4001 VIN 3 R1 UTC LM317M 2 VoUT 1 IADJ 50k R2 10 F IOUT R2 IO(MAX)=( IO(MIN)=( 1.25V VREF )+IADJ= R1 R1 VREF 1.25V )+IADJ= R1+R2 R1+R2 5mA<IOUT<100mA Fig.3 Soft Start Application UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Fig.4 Constant Current Application 4 of 5 QW-R101-014,G LM317M LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS Load Regulation vs. temperature Adjustment Current vs. Temperature 60 0.0 Adjustment Current, IADJ (μA) Output Voltage Deviation, ∆VOUT (%) 0.2 -0.2 -0.4 -0.6 -0.8 VIN=15V VOUT=10V -1.0 0 25 50 75 100 55 50 45 40 35 -50 125 0 25 50 75 100 125 Temperature Output Current, IOUT (A) Min Output Current, IOUT (mA) Temperature -25 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 5 of 5 QW-R101-014,G