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| www.fairchildsemi.com LM317L 3-terminal 0.1A positive adjustable regulator Features * * * * * * Output current in excess of 100mA 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 Description The LM317L is a 3-terminal adjustable positive voltage regulator capable of supplying in excess of 100mA over an output voltage range of 1 .2V to 37V. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. TO-92 1 1. Adj 2. Output 3. Input 8-SOP 1 Internal Block Diagram Vin Input 3 + - Voltage Reference Protection Circuitry Rlimit 2 Vo Output 1 Vadj Rev. 1.0.1 (c)2001 Fairchild Semiconductor Corporation LM317L Absolute Maximum Ratings Parameter Input-Output Voltage Differential Power Dissipation Operating Junction Temperature Range Storage Temperature Range Symbol VI - VO PD Tj TSTG Value 40 Internally limited 0 ~ +125 -65 ~+125 Unit V W C C Electrical Characteristics (VI - VO = 5V, IO = 40mA, 0C TJ +125C, PDMAX = 625mW, unless otherwise specified) Parameter Symbol Rline *Line Regulation Conditions TA = +25C 3V VI - VO 40V 3V VI - VO 40V TA = +25C 10mA IO 100mA VO 5V VO 5V 10mA IO 100mA VO 5V VO 5V 3V VI - VO 40V 10mA IO 100mA PD < PDMAX 3V < VI - VO <40V 10mA IO 100mA PD PDMAX VI - VO = 40V VI - VO 15V PD < PDMAX VI - VO 40V PD < PDMAX, TA = +25C TA =+ 25C 10Hz < f <10KHz VO = 10V, f = 120Hz without CADJ CADJ = 10uF TJ = +125 C, 1000 Hours Min. Typ. 0.01 0.02 Max. 0.04 0.07 Unit %/V Rloal *Load Regulation 5 0.1 20 0.3 50 0.2 25 0.5 70 1.5 100 5 mV %/ VO mV %/ VO A A - Adjustment Pin Current Adjustment Pin Current Change IADJ IADJ Reference Voltage Temperature Stability Minimum Load Current to Maintain Regulation Maximum output Current VREF STT IL(MIN) 1.20 100 25 66 - 1.25 0.7 3.5 200 50 0.003 65 80 0.3 1.30 10 - V % mA mA IO(MAX) RMS Noise, % of VOUT eN %/ VO Ripple Rejection Long-Term Stability RR ST dB % * Load and Line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. 2 LM317L Typical Application LM317L Input Output Figure 1. 5V Electronic Shutdown Regulator D1 protects the device during an input short circuit. Input LM317L Output Figure 2. Slow Turn-On Regulator Input LM317L Output Figure 3. Current Regulator 3 LM317L Mechanical Dimensions Package TO-92 4.58 -0.15 +0.25 0.46 14.47 0.40 0.10 4.58 0.20 1.27TYP [1.27 0.20] 3.60 0.20 1.27TYP [1.27 0.20] 0.38 -0.05 +0.10 3.86MAX 1.02 0.10 0.38 -0.05 +0.10 (R2.29) Mechanical Dimensions (Continued) Package 4 (0.25) LM317L 8-SOP MIN 1.55 0.20 0.061 0.008 0.1~0.25 0.004~0.001 #1 #8 4.92 0.20 0.194 0.008 5.13 MAX 0.202 ( 0.56 ) 0.022 #4 #5 6.00 0.30 0.236 0.012 +0.10 0.15 -0.05 +0.004 0.006 -0.002 1.80 MAX 0.071 MAX0.10 MAX0.004 3.95 0.20 0.156 0.008 5.72 0.225 0.50 0.20 0.020 0.008 0~ 8 1.27 0.050 0.41 0.10 0.016 0.004 5 LM317L Ordering Information Product Number LM317LZ LM317LM Package TO-92 8-SOP Operating Temperature 0C to + 125C 6 LM317L 7 LM317L DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. www.fairchildsemi.com 3/6/01 0.0m 001 Stock#DSxxxxxxxx 2001 Fairchild Semiconductor Corporation 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. |
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