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LM337

3-Terminal 1.5A Negative Adjustable Regulator
Features
Output current in excess of 1.5A Output voltage 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 Standard 3-pin TO-220 package

Description
The LM337 is a 3-terminal negative adjustable regulator. It supplies in excess of 1.5A over an output voltage range of -1.2V to - 37V. This regulator requires only two external resistor to set the output voltage. Included on the chip are current limiting, thermal overload protection and safe area compensation.
TO-220

1

1. Adj 2. Input 3. Output

Internal Block Diagram
Vadj

1

3

Output

Voltage Reference

Protection Circuitry

2 Input

Rev. 1.0.0
2001 Fairchild Semiconductor Corporation

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LM337 DATASHEET