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3-Terminal Positive Adjustable Regulator
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KA317 / LM317
3-Terminal Positive Adjustable Regulator
Features Description •
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• This monolithic integrated circuit is an adjustable 3-terminal positive-voltage regulator designed to supply more
than 1.5 A of load current with an output voltage adjustable over a 1.2 V to 37 V range. It employs internal current limiting, thermal shutdown, and safe area
compensation. Output-Current In Excess of 1.5 A
Output-Adjustable Between 1.2 V and 37 V
Internal Thermal Overload Protection
Internal Short-Circuit Current Limiting
Output-Transistor Safe Operating Area Compensation
TO-220 Package TO-220
Output 1 1. Adj 2. Output 3. Input Ordering Information
Product Number Package Packing Method Operating Temperature LM317T TO-220 (Single Gauge) Rail 0°C to +125°C KA317TU TO-220 (Dual Gauge) Rail 0°C to +125°C Block Diagram
Vin 3
Input +
-Voltage
Reference Protection
Circuitry RLIMIT
Rlimit 2 Vo
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