UNISONIC TECHNOLOGIES CO., LTD LM317M LINEAR INTEGRATED CIRCUIT 3-TERMINAL 0.5A POSITIVE ADJUSTABLE REGULATOR 1 1 DESCRIPTION The UTC LM317M is a 3-terminal adjustable positive voltage regulator capable of supplying in excess of 500mA over an output voltage range of 1.2V ~ 37V. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. 2 3 TO-252 SOT-223 12 3 TO-220 FEATURES *Output Current in Excess of 0.5A *Output Adjustable Between 1.2V and 37V *Internal Thermal Overload Protection *Internal Short Circuit Current Limiting *Output Transistor Safe Area Compensation *Floating Operation for High Voltage Applications *Pb-free plating product number: LM317ML ORDERING INFORMATION Order Number Normal Lead Free Plating LM317M-AA3-0-R LM317ML-AA3-0-R LM317M-TA3-0-T LM317ML-TA3-0-T LM317M-TN3-0-R LM317ML-TN3-0-R LM317M-TN3-0-T LM317ML-TN3-0-T Note: Pin assignment: I:VIN O:VOUT A:ADJ Package SOT-223 TO-220 TO-252 TO-252 Pin Assignment 1 2 3 A O I A O I A O I A O I Packing Tape Reel Tube Tape Reel Tube LM317ML-AA3-0-R (1)Packing Type (2)Pin Assignment (3)Package Type (4)Lead Plating www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd (1) R: Tape Reel, T: Tube (2) refer to Pin Assignment (3) AA3: SOT-223, TA3: TO-220, TN3: TO-252 (4) L: Lead Free Plating, Blank: Pb/Sn 1 of 6 QW-R101-014,B LM317M LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM Input 3 + - Voltage Reference Protection Circuitry Rlimit 2 Output 1 Vadj UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R101-014,B 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 -20 ~ +85 ℃ Storage Temperature TSTG -40 ~ +150 ℃ Note 1. 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. 2. The device is guaranteed to meet performance specification within 0℃~+70℃ operating temperature range and assured by design from -20℃~+85℃. ELECTRICAL CHARACTERISTICS (VIN-VOUT=5V, IOUT=0.1A, 0℃≤TJ≤+125℃, PD(MAX)=7.5W, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS MIN Ta=+25℃, 3V≤VIN-VOUT≤40V Line Regulation ∆VOUT 3V≤VIN-VOUT≤40V Ta=+25°C, 10mA≤VIN-VOUT≤0.5A VOUT≤5V VOUT≥5V Load Regulation ∆VOUT 10mA≤IOUT≤0.5A VOUT≤5V VOUT≥5V Adjustment Pin Current IADJ 3V≤VIN-VOUT≤40V Adjustment Pin Current △IADJ Change 10mA≤IOUT≤0.5A, PD<PD(MAX) 3V≤VIN-VOUT≤40V 1.20 Reference Voltage VREF 10mA≤IOUT≤0.5A, PD<PD(MAX) Temperature Stability STT VIN-VOUT=40V Minimum Load Current to IL(MIN) Maintain Regulation VIN-VOUT≤15V, PD<PD(MAX) 0.5 Maximum Output Current IO(MAX) VIN-VOUT=40V 0.15 PD<PD(MAX), Ta=+25℃ RMS Noise, % of VOUT eN Ta=+25℃, 10Hz<f<10KHz VOUT=10V, f=120Hz 66 Without CADJ Ripple Rejection RR CADJ=10µF Long-Term Stability ST TJ=+125℃, 1000Hours UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TYP 0.01 0.02 MAX 0.04 0.07 UNIT %/V 5 0.1 25 0.5 mV %/Vo 20 0.3 50 70 1.5 100 mV %/Vo µA 0.2 5 µA 1.25 1.30 V 0.7 3.5 %/Vo 10 mA 0.9 0.25 A 0.003 %/Vo 65 80 0.3 V/µs 1 %/1000Hrs 3 of 6 QW-R101-014,B LM317M LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION D1 1N4002 Input VoUT UTC LM317M Output + 1.0μF 120 V ADJ 720 PN2222A 1k TTL CONTROL MIN. VoUT=1.25V Figure 1. 1.5V Electronic Shutdown Regulator D1 protects the device during an input short circuit Input Vo UT UTC LM317M 240 Output 1N4001 50K V ADJ PN2907A R2 + 1.0μF Figure 2. Slow Turn-On Regulator Input UTC LM317M VoUT R1 R2 IoUT Output VADJ IADJ 1.25V VREF )+IADJ= R1 R1 1.25V V REF IO(MIN) =( )+IADJ= R1+R2 R1+R2 5mA<IoUT<500mA IO(MAX)=( Figure 3. Current Regulator UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 6 QW-R101-014,B LM317M LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS Minimum Load Current 40 30 Peak Output Current Io(peak) (A) 25 20 15 10 5 10 15 20 25 30 35 20 15 10 0.5 0.0 40 0 5 10 15 20 25 30 35 Input-output Differential Voltage, VIN-VOUT (V) Input-output Differential Voltage, V IN-VOUT (V) Adjustment Pin Current vs.Temperature Ripple Rejection vs. Frequency 100 55 V IN-VOUT=5V, IoUT=5mA 50 90 VoUT=1.25V 80 Ripple 'Rejection (dB) 45 VIN=19V, VOUT=10V IOUT=5mA, TJ=25°C VoUT=36V 40 35 40 Cadj=10μF 0 25 70 60 50 Cadj=0μF Minimum Load Current (mA) 30 0.5 Adjustment Pin Current (μA) TJ=25℃ TJ=25℃ 35 0.0 Peak Output Current vs. Input-Output Differential Voltage 40 30 20 30 -25 0 25 50 75 100 10 10 125 10k 100k Frequency, f (Hz) Load Regulation vs. Temperature Line Regulation vs. Temperature 1M 0.015 VIN-VOUT=5V, Vo=1.25V 10mA≤IOUT≤500mA, Pulse test 0. 9 0.014 0.8 Line Regulation (%/V) Load Regulation (%) 1k Ambient Temperature, Ta (℃) 1.0 0.7 0.6 0.5 0.4 3V≤VIN-VOUT≤40, VOUT=1.25V IOUT=100mA, Pulse test 0.013 0.012 0.011 0.009 0.008 0.007 0.3 0.2 -25 100 0 25 50 75 100 125 Ambient Temperature, Ta (℃) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 0.006 -25 0 25 50 75 100 125 Ambient Temperature, Ta (℃) 5 of 6 QW-R101-014,B LM317M LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS(Cont.) Thermal Shutdown Outputvoltage vs.Temperature 5.10 1.50 VOUT=5V, IOUT=5mA VIN=5V,VOUT=1.25V,IOUT=0mA 5.08 Output Voltage, VOUT (V) Output Voltage, VOUT (V) 5.09 VIN-VOUT=40V 5.07 5.06 5.04 VIN-VOUT=3V 5.03 5.02 1.25 1.00 0.75 5.01 5.00 -25 0 25 50 75 100 Ambient Temperature, Ta (℃) 125 0 20 50 100 150 75 125 Ambient Temperature, Ta (℃) 175 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 6 of 6 QW-R101-014,B