LM317M

www.DataSheet4U.com www.fairchildsemi.com LM317M 3-Terminal 0.5A Positive Adjustable Regulator 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 Description The LM317M is a 3-terminal adjustable positive voltage regulator capable of supplying in excess of 500mA 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. D-PAK 2 1 3 1. Adj 2. Output 3. Input TO-220 12 3 Internal Block Diagram V in 3 Input + - V olta ge Re fe re nce P rote ction Circ uitry R limit 2 1 V ad j Vo Output Rev. 1.0.2 ©2002 Fairchild Semiconductor Corporation LM317M Absolute Maximum Ratings Parameter Input-Output Voltage Differential Power Dissipation Thermal Resistance Junction-Air D-PAK (Note1,2) Operating JunctionTemperature Range Storage Temperature Range Symbol VI - V O PD RθJA Tj TSTG Value 40 Internally Limited 100 0 ~ +125 -65 ~ +125 Unit V W °C/W °C °C Electrical Characteristics (VI-VO = 5V, IO = 0.1A, 0°C ≤ TJ ≤ +125°C, PDMAX = 7.5W, unless otherwise specified) Parameter Line Regulation (Note3) Symbol Rline Conditions TA = +25°C, 3V ≤ VI −VO ≤ 40V 3V ≤ VI −VO ≤ 40V TA =+25°C, 10mA ≤ IO ≤ 0.5A VO ≤ 5V VO ≥ 5V 10mA ≤ IO ≤ 0.5A VO ≤ 5V VO ≥ 5V Adjustment Pin Current...