LM117/217
LM317
1.2V TO 37V VOLTAGE REGULATOR
November 1999
■ OUTPUT VOLTAGERANGE : 1.2 TO 37V
■ OUTPUT CURRENT IN EXCESS OF 1.5A
■ 0.1% LINE AND LOAD REGULATION
■ FLOATINGOPERATION FOR HIGH
VOLTAGES
■ COMPLETE SERIESOF PROTECTIONS :
CURRENT LIMITING, THERMAL
SHUTDOWN AND SOA CONTROL
DESCRIPTION
The LM117/LM217/LM317 are monolithic
integrated circuit in TO-220, ISOWATT220, TO-3
and D
2
PAK 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
TO-220
D
2
PAK
ABSOLUTE MAXIMUM RATING
Symbol Parameter Value Unit
V
i-o
Input-output Differential Voltage 40 V
I
O
Output Current Intenrally Limited
T
op
Operating Junction Temperature for: LM117
LM217
LM317
-55 to 150
-25 to 150
0 to 125
o
C
o
C
o
C
P
tot
Power Dissipation Internally Limited
T
stg
Storage Temperature - 65 to 150
o
C
THERMAL DATA
Symbol Parameter TO-3 TO-220 ISOWATT220 D
2
PAK Unit
R
thj-case
R
thj-amb
Thermal Resistance Junction-case Max
Thermal Resistance Junction-ambient Max
4
35
3
50
4
60
3
62.5
o
C/W
o
C/W
ISOWATT220
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