.
U
.
D
40V Io=1000mA
Low dropout Regulator
PACKAGE OUTLINE
3
NJW4187
NJW4188
3
GENERAL DESCRIPTION
The NJW4187/88 is a 1000mA output low dropout
voltage regulator.
Advanced BCD technology achieves low consumption,
high output current and high supply voltage.
NJW4187 is output voltage fixed type. NJW4188 is
output voltage adjustable type. And it is available to low
ESR capacitor. The NJW4187/88 is suitable for various
applications.
1.
2.
3.
4.
VIN
CONTROL
GND
N.C.
VOUT
1
2
1.
2.
3.
4.
VIN
CONTROL
GND
VADJ
VOUT
1
2
3
4
5
5.
3
4
5
5.
NJW4187DL3
TO252-5
NJW4188DL3
TO252-5
FEATURES
Operating Voltage Range 35V max.
Quiescent Current
55μA typ.
Output Current
I
O
(min.)=1000mA
NJW4187: fixed voltage type
Voltage Accuracy:
V
O
±2.0%
NJW4188: adjustable voltage type
Reference Voltage Accuracy: Vref=1.29V±2.0%
Built-in Thermal Shutdown
Over Current Protection
Package
TO-252-5
BLOCK DIAGRAM
V
IN
Current
Limit
V
OUT
V
IN
Current
Limit
V
OUT
CONTROL
CONTROL
V
ADJ
Bandgap
Reference
Thermal
Protection
GND
Bandgap
Reference
Thermal
Protection
GND
NJW4187
NJW4188
Recommended Application
For Car Accessory, A/V, OA Equip and so on
Please note that this device is still under the development
and therefore the specifications are subject to change.
Ver.2010/09/03
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