Voltage Regulator. LM317 Datasheet

LM317 Regulator. Datasheet pdf. Equivalent

Part LM317
Description Adjustable Voltage Regulator
Feature INCHANGE Semiconductor isc Adjustable Voltage Regulator isc Product Specification LM317 FEATURES ·.
Manufacture Inchange Semiconductor
Datasheet
Download LM317 Datasheet



LM317
INCHANGE Semiconductor
isc Adjustable Voltage Regulator
isc Product Specification
LM317
FEATURES
·Output Voltage Range :1.2V to 37V
·Output Current in Excess of 1.5A
·0.1% Line and Load Regulation
·Floating Opearation for High Voltages
·Complete Series of Protections:
Current Limiting,
Thermal Shutdown and SOA Control
DESCRIPTION
·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.
ABSOLUTE MAXIMUM RATINGS(Ta=25)
SYMBOL
PARAMETER
VALUE
Vi -Vo Input-output Differential Voltage
40
IO Output Current
Internally Limited
PD Power Dissipation
Internally Limited
TOP Operating Junction Temperature
0~125
TSTG
Storage Temperature
-65~+125
UNIT
V
A
W
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
Rth j-c Thermal Resistance, Junction to Case
Rth j-a Thermal Resistance,Junction to Ambient
MAX
3
50
UNIT
/W
/W
isc websitewww.iscsemi.cn
1 isc & iscsemi is registered trademark



LM317
INCHANGE Semiconductor
isc Adjustable Voltage Regulator
isc Product Specification
LM317
·ELECTRICAL CHARACTERISTICS
(Vi-Vo=5V,IO=0.5A,IMAX=1.5A,PMAX=20W,unless otherwise specified)
SYMBOL
PARAMETER
CONDITIONS
VO Line Regulation
Vi -Vo= 3V to 40V;IO=10mA to 1.5A
SVR Ripple Rejection
Vo= 10V; f= 120Hz, CADJ= 10μF
VO Load Regulation
IO= 10mA to 1.5A;Vo≤5V Tj = 25 oC
IO= 10mA to 1.5A;Vo>5V Tj = 25 oC
Io (min) Minimum Load Current Vi - Vo = 40 V
IO (max)
Maximum Load Current
Vi - Vo ≤ 15 V
Vi - Vo = 40 V;Tj = 25 oC
IADJ Adjustment Pin Current Vi -Vo= 5V ;IO= 500mA
IADJ
VREF
Adjustment Pin Current Vi -Vo= 2.5V to 40V;IO= 10mA to1.5A
Reference Voltage
Vi -Vo= 3V to 40V ; IO= 10mA to 1.5A,
P≤15W
MIN TYP. MAX UNIT
0.07 / V
66 dB
25 mV
0.5 %
10 mA
1.5 A
0.15 A
100 μA
5 μA
1.2 1.25 1.3
V
isc websitewww.iscsemi.cn
2 isc & iscsemi is registered trademark





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