UNISONIC TECHNOLOGIES CO., LTD LM317L LINEAR INTEGRATED CIRCUIT LOW CURRENT 1.25V TO 37V ADJUSTABLE VOLTAGE REGULATOR SOP-8 DESCRIPTION The UTC LM317L is a monolithic integrated circuit, designed to supply 100mA of output current with voltage adjustable from 1.25V ~ 37V. 1 FEATURES TO-92 *Output voltage adjustable from 1.25V ~ 37V. *Output current in excess of 100mA *Internal thermal overload protection *Internal short circuit current limiting *Output transistor safe area compensation Lead-free: LM317LK Halogen-free: LM317LG ORDERING INFORMATION Normal LM317L-T92-B LM317L-T92-K LM317L-S08-R LM317L-S08-T Ordering Number Lead Free LM317LK-T92-B LM317LK-T92-K LM317LK-S08-R LM317LK-S08-T Note: Pin Assignment: A:ADJ I:VIN O:VOUT Halogen Free LM317LG-T92-B LM317LG-T92-K LM317LG-S08-R LM317LG-S08-T Package TO-92 TO-92 SOP-8 SOP-8 1 A A I I Pin Assignment 2 3 4 5 6 7 O I - - - O I - - - O O A N O O O O A N O O Packing 8 - Tape Box Bulk N Tape Reel N Tube N: No Connection www.unisonic.com.tw Copyright © 2008 Unisonic Technologies Co., Ltd 1 of 5 QW-R101-008.D LM317L LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM INPUT VREF PROTECTION CIRCUIT OUTPUT VADJ UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R101-008.D LM317L LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATING UNIT Input-Output Differential Voltage VIN-VOUT 40 V Power Dissipation PD Internally Limited Junction Temperature TJ +125 °C Operating Junction Temperature TOPR -40 ~ +85 °C Storage Temperature Range TSTR -40 ~ +150 °C 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. ELECTRICAL CHARACTERISTICS (VIN-VOUT=5V, IOUT=40mA, Ta=25°C, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS Line Regulation ΔVOUT/VOUT 3V≦VIN-VOUT≦40V, ILOAD<20mA VOUT≦5V Load Regulation ΔVOUT 5mA≦IOUT≦100mA 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, 5mA≦IOUT≦100mA, PD＜625mW 3V≦VIN-VOUT≦40V, 5mA≦IOUT≦100mA, PD＜625mW TMIN≦TJ≦TMAX VIN-VOUT=40V VIN-VOUT=40V, PD≦625mW 10HZ≦f≦10KHZ CADJ=0 Ripple Rejection RR VOUT=10V,f=120HZ, CADJ =10μF Note: CADJ is connected between Adjust pin and Ground. TYP MAX UNIT 0.01 0.04 %/V 5 25 mV 0.1 0.5 % 50 100 μA 0.2 5 1.20 1.25 1.30 IL(MIN) IO(MAX) eN UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 66 μA V 0.7 %/VOUT 3.5 10 mA 50 mA 0.003 0.01 %/VOUT 65 dB 80 dB 3 of 5 QW-R101-008.D LM317L LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUITS VIN VOUT 3 UTC LM317L 2 D1 1N4001 1 VADJ VIN 3 R1 UTC LM317L 2 R2 IOUT VoUT 1 240 IADJ 50k R2 10 F 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-R101-008.D LM317L 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 75 100 125 Temperature 55 50 45 40 35 -50 -25 0 25 50 75 100 125 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 5 of 5 QW-R101-008.D