NJM2381 Datasheet, PDF (1/8 Pages) New Japan Radio – SWITCHING REGULATOR CONTROL IC FOR FLYBACK WITH CURRENT SENSE AMPLIFIER

NJM2381
SWITCHING REGULATOR CONTROL IC FOR FLYBACK
WITH CURRENT SENSE AMPLIFIER
sGENERAL DESCRIPTION
The NJM2381 is a low voltage operation DC/DC converter
control IC.
It features totem pole output directly driving external
bipolar transistor and operates at high switching frequency
which improves transient response.
It is suitable for LCD back light, and other portable
applications.
sPACKAGE OUTLINE
NJM2381D
NJM2381M
sFEATURES
q PWM switching control
q Operating Voltage
(3.6 to 32V)
q Wide Oscillator Range
(5 to 350 kHz)
q Current Sensing Amplifier
q Soft-Start Function
q UVLO(Under Voltage Lockouts)
q Bipolar Technology
q Package Outline DIP14, DMP14, SSOP10
sPIN CONFIGURATION
1
14
2
13
3
12
4
11
5
10
6
9
7
8
NJM2381D
NJM2381M
1
10
2
9
3
8
4
7
5
6
NJM2381V
NJM2381V
PIN FUNCTION
1.NC
8.NC
2.IN^-1
9. V⁺
3.IN^-2
10.CS
4.F.B
11.CT
5.GND
12.REF
6.OUT
13.IN⁺
7.NC
14.NC
PIN FUNCTION
1.IN^-1
6. V⁺
2.IN^-2
7.CS
3.F.B
8.CT
4.GND
9.REF
5.OUT
10.IN⁺
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