LM117/LM217/LM317
1.2 V to 37 V adjustable voltage regulators
Features
■ Output voltage range: 1.2 to 37 V ■ Output cur...
LM117/LM217/LM317
1.2 V to 37 V adjustable voltage
regulators
Features
■ Output voltage range: 1.2 to 37 V ■ Output current in excess of 1.5 A ■ 0.1% Line and load regulation ■ Floating operation for high voltages ■ Complete series of protections: current limiting,
thermal shutdown and SOA control
Description
The LM117/LM217/LM317 are monolithic integrated circuit in TO-220, TO-220FP, TO-3 and D2PAK packages intended for use as positive adjustable voltage
regulators.
They are designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2 to 37 V range.
The nominal output voltage is selected by means of only a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed
regulators.
TO-220 D2PAK
TO-220FP TO-3
Table 1. Device summary
Order codes
TO-220
D2PAK (tape and reel)
TO-220FP
LM217T LM317T
LM217D2T-TR LM317D2T-TR
LM317P
TO-3 LM117K LM217K LM317K
1/25
25
Maximum ratings
2 Maximum ratings
LM117/LM217/LM317
Table 2. Absolute maximum ratings
Symbol
Parameter
VI - VO IO
Input-reference differential voltage Output current
TOP Operating junction temperature for:
PD TSTG
Power dissipation Storage temperature
LM117 LM217 LM317
Value 40
Internally limited -55 to 150 -25 to 150 0 to 125
Internally limited -65 to 150
Unit V °C
°C
Note:
Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied....