©2002 Fairchild Semiconductor Corporation

www.fairchildsemi.com

Rev. 1.0.2

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 KA317M 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

1. Adj 2. Output 3. Input

1

2

3

TO-220

1 2 3

Internal Block Diagram

Rlim it

3

Vin

Vo

1

Voltage

Re fe re nce

Vad j

2

P rote ction

Circ uitry

+

-

Input

Output

KA317M

3-Terminal 0.5A Positive Adjustable Regulator