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Inchange Semiconductor

LM317 Datasheet Preview

LM317 Datasheet

Adjustable Voltage Regulator

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isc Adjustable Voltage Regulator
INCHANGE Semiconductor
LM317
FEATURES
·Output Voltage Range :1.2V to 37V
·Output Current In Excess of 1.5A
·0.1% Line and Load Regulation
·Floating Operation for High Voltage
·100% tested
·Minimum Lot-to-Lot variations for robust device
performance and reliable operation
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 RATING(Ta=25)
SYMBOL
PARAMETER
VALUE
UNIT
Vi -Vo Input-output Differential Voltage
40
V
IO
Output Current
1.5
A
PD
Power Dissipation
Internally Limited W
TOP
Operating Junction Temperature
0~125
TSTG
Storage Temperature
-65~125
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
Rth j-c
Rth j-a
Thermal Resistance, Junction to Case
Thermal Resistance,Junction to Ambient
MAX
5
35
UNIT
/W
/W
isc websitewww.iscsemi.com
1 isc & iscsemi is registered trademark




Inchange Semiconductor

LM317 Datasheet Preview

LM317 Datasheet

Adjustable Voltage Regulator

No Preview Available !

isc Adjustable Voltage Regulator
INCHANGE Semiconductor
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 Adjustment Pin Current Vi -Vo= 3V to 40V;IO= 10mA to1.5A
VREF
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
%
12
mA
1.5
A
0.3
A
100 μA
5
μA
1.2
1.25 1.3
V
NOTICE
ISC reserves the rights to make changes of the content herein the datasheet at any time without
notification. The information contained herein is presented only as a guide for the applications of
our products.
ISC products are intended for usage in general electronic equipment. The products are not designed
for use in equipment which require specialized quality and/or reliability, or in equipment which
could have applications in hazardous environments, aerospace industry, or medical field. Please
contact us if you intend our products to be used in these special applications.
ISC makes no warranty or guarantee regarding the suitability of its products for any particular
purpose, nor does ISC assume any liability arising from the application or use of any products, and
specifically disclaims any and all liability, including without limitation special, consequential or
incidental damages.
isc websitewww.iscsemi.com
2 isc & iscsemi is registered trademark


Part Number LM317
Description Adjustable Voltage Regulator
Maker Inchange Semiconductor
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