INCHANGE Semiconductor
isc Adjustable Voltage Regulator
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
·Complete
Series of Protections:
Current Limiting,
Thermal Shutdown and SOA Control.
·Minimum
Lot-to-Lot variations for robust device
performance and reliable operation
DESCRIPTION
·For
use as positive adjustable voltage regulators.
·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(T
a
=25
℃
)
SYMBOL
V
i
-V
o
I
O
P
D
T
OP
T
STG
PARAMETER
Input-output Differential Voltage
Output Current
Power Dissipation
Operating Junction Temperature
Storage Temperature
VALUE
40
1.5
Internally Limited
0~125
-65~150
UNIT
V
A
W
℃
℃
LM317K
THERMAL CHARACTERISTICS
SYMBOL
R
th j-c
R
th j-a
PARAMETER
Thermal Resistance, Junction to Case
Thermal Resistance,Junction to Ambient
MAX
4
35
UNIT
℃/W
℃/W
isc website
：
www.iscsemi.com
1
isc & iscsemi
is registered trademark
INCHANGE Semiconductor
isc Adjustable Voltage Regulator
·ELECTRICAL
CHARACTERISTICS
(V
i
-V
o
=5V, I
O
=0.5A ,I
MAX
=1.5A ,P
MAX
=20W,unless otherwise specified)
SYMBOL
V
REF
△V
O
△V
O
I
ADJ
△I
ADJ
△I
ADJ
S
VR
PARAMETER
Reference Voltage
Line Regulation
Load Regulation
Adjustment Pin Current
Adjustment Pin Current
Adjustment Pin Current
Ripple Rejection
CONDITIONS
V
i
-V
o
= 5V; I
O
= 40mA to 500mA,
V
i
-V
o
= 3V to 40V; I
O
=500mA
V
i
-V
o
= 5V; I
O
= 10mA to 1.5A
V
i
-V
o
= 5V;I
O
= 40mA to 500mA
V
i
-V
o
= 3V to 40V; I
O
= 40mA to 500mA
V
i
-V
o
= 5V; I
O
= 10mA to 1.5A
V
o
= 10V; I
O
= 500mA; V
i
-V
o
= 5V;
f= 100Hz, C
ADJ
= 10μF
66
MIN
1.2
TYP.
1.25
LM317K
MAX
1.3
0.04
0.5
100
5
5
UNIT
V
％/
V
％
μA
μA
μA
dB
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 website
：
www.iscsemi.com
2
isc & iscsemi
is registered trademark
京公网安备 11010802033920号
EEWORLD
