NJM2368
SWITCHING REGULATOR CONTROL IC FOR FLYBACK
■GENERAL DESCRIPTION
The NJM2368 is a high speed switching regulator control IC
which can operate at low voltage.
It uses a totempole output circuit , so that it can drive an
external Bipolar Transistor directly.
It is suitable for applications of flyback type switching
regulation of up to 10W.
■PACKAGE OUTLINE
NJM2368D
NJM2368M
■FEATURES
● Operating Voltage
(3.6V ~ 32V)
● Wide Oscillator Range (5kHz ~ 350 kHz)
● Soft-Start function.
● Under Voltage Lockouts (U.V.L.O.)
● Bipolar Technology
● Package Outline
DIP8, DMP8, EMP8, SSOP8
■BLOCK DIAGRAM
NJM2368E
NJM2368V
REF
8
VREF
U.V.LO
CT
7
30uA
OSC
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.2004-06-03
-1-