NJM2379E データシートの表示（PDF） - Japan Radio Corporation
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NJM2379E Datasheet PDF : 8 Pages
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NJM2379
PWM SWITCHING REGULATOR CONTROL IC FOR SLAVE TYPE
■ GENERAL DESCRIPTION
The NJM2379 is a high speed switching regulator control
IC, and directly drive an external power MOS-FET to use
internal totempole output circuit.
The NJM2379 operate slave mode which synchronous
external oscillation frequency, and the slave mode reduce
the total noise.
The NJM2379 is suitable for flyback type switching
regulation up to 10W and several output power supply for
LCD panel.
■ FEATURES
● Operating Voltage
(3.6 to 32V)
● Reference Voltage
(2.5V±2%)
● Input Outside
Oscillator Frequency (5 to 350 kHz)
● Output Switch Current (±8mA min.)
● Under Voltage Lockouts Circuit
● Bipolar Technology
● Package Outline
DIP8,DMP8,EMP8,SSOP8
■ PACKAGE OUTLINE
NJM2379D
NJM2379E
NJM2379M
NJM2379V
■ BLOCK DIAGRAM
REF
CT
CS
V+
8
7
6
5
30uA
VREF
L.O
U.V.LO
0.52V
ER⋅AMP
PWM
S.C.P
PIN FUNCTION
1. IN-
2. F.B
3. GND
4. OUT
5. V+
6. CS
7. CT
8. REF
1
2
3
4
IN-
F.B
GND
OUT
Ver.2004-03-03
-1-
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