NJM2378V View Datasheet(PDF) - Japan Radio Corporation

Part Name

Description

Manufacturer

NJM2378V

PWM SWITCHING REGULATOR CONTROL IC FOR SLAVE TYPE

Japan Radio Corporation  

NJM2378

PWM SWITCHING REGULATOR CONTROL IC FOR SLAVE TYPE

■ GENERAL DESCRIPTION

The NJM2378 is a high speed switching regulator control

IC, and directly drive an external Bipolar Transistor to use

internal totempole output circuit.

The NJM2378 operate slave mode which synchronous

external oscillation frequency, and the slave mode reduce

the total noise.

The NJM2378 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

NJM2378D

NJM2378E

NJM2378M

NJM2378V

■ BLOCK DIAGRAM

REF

8

VREF

U.V.LO

CT

7

30uA

CS

6

L.O

0.52V

ER⋅AMP

PW M

S.C.P

V+

5

500Ω

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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