LM117 Datasheet, PDF (1/11 Pages) National Semiconductor (TI) – 3-Terminal Adjustable Regulator

LM117/217
®
LM317
1.2V TO 37V VOLTAGE REGULATOR
s OUTPUT VOLTAGE RANGE : 1.2 TO 37V
s OUTPUT CURRENT IN EXCESS OF 1.5A
s 0.1% LINE AND LOAD REGULATION
s FLOATING OPERATION FOR HIGH
VOLTAGES
s COMPLETE SERIES OF PROTECTIONS :
CURRENT LIMITING, THERMAL
SHUTDOWN AND SOA CONTROL
DESCRIPTION
The LM117/LM217/LM317 are monolithic
integrated circuit in TO-220, ISOWATT220, TO-3
and D²PAK packages intended for use as
positive adjustable voltage regulators.
They are designed to supply more than 1.5A of
load current with an output voltage adjustable
over a 1.2 to 37V 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-3
D²PAK
TO-220
ISOWATT220
ABSOLUTE MAXIMUM RATING
Symbol
Parameter
V_i-o Input-output Differential Voltage
I_O Output Current
Top Operating Junction Temperature for: LM117
LM217
LM317
P_tot Power Dissipation
T_stg Storage Temperature
Value
Unit
40
V
Intenrally Limited
-55 to 150
o_C
-25 to 150
o_C
0 to 125
o_C
Internally Limited
- 65 to 150
o_C
THERMAL DATA
Symbol
Parameter
R_{thj- ca se} Thermal Resistance Junction-case
R_thj-amb Thermal Resistance Junction-ambient
Max
Max
TO-3
4
35
TO-220
3
50
ISOW ATT220
4
60
D²PAK
3
62.5
Unit
o_C/W
o_C/W
November 1999
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