Datasheet Fairchild LM317M — 数据表

LM317M
3-Terminal 0.5A Positive Adjustable Regulator
Features Description The LM317M is a 3-terminal adjustable positive voltage
regulator capable of supplying in excess of 500 mA over
an output voltage range of 1.2 V to 37 V. This voltage regulator is exceptionally easy to use and requires only two
external resistors to set the output voltage. Output Current in Excess of 0.5 A
Output Adjustable Between 1.2 V and 37 V
Internal Thermal Overload Protection
Internal Short-Circuit Current Limiting
Output Transistor Safe Area Compensation
Floating Operation for High Voltage Applications D-PAK 2 1 3 1. Adj 2. Output 3. Input
TO-220 (Single Gauge) 12 3 Ordering Information
Product Number Marking Package Packing Method Operating Temperature LM317MDTX LM317MDT TO-252 3L (D-PAK) Tape and Reel LM317MDTXM LM317MDT TO-252 3L (D-PAK) Tape and Reel LM317MT LM317M TO-220 3L (Single Gauge) Rail 0 to +125В°C * Refer to below unit orientation figure for TM / TF suffix packing. В© 2003 Fairchild Semiconductor Corporation
LM317M Rev. 1.1.0 www.fairchildsemi.com LM317M — 3-Terminal 0.5A Positive Adjustable Regulator September 2014 LM317M — 3-Terminal 0.5A Positive Adjustable Regulator Block Diagram Input
V in 3 +
-P rote ction
Circ uitry V olta ge
Re fe re nce R lim it 2 Vo
Output 1
V ad j Figure 1. Block Diagram Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only. Values are at TA = 25В°C unless otherwise noted. Symbol
VI -VO …