MB3882 Datasheet, PDF (4/30 Pages) Fujitsu Component Limited. – 2-channel DC/DC Converter IC with Synchronous Rectifier

MB3882
s BLOCK DIAGRAM
VCC
23
5 V Reg.
13 VB
FB1 6 _{10 µA}
−INE1 5
CS1 ⁴
+INC1 7
1.25 V
Error Amp.1
−
+
+
OVP Comp.1
+
−
Latch1
VCC
1.47 V
R
SQ
PWM Comp.1-1
+
−
PWM Comp.2-1
+
−
< CH1 >
Drive1-1
Drive2-1
10 CB1
8 OUT1-1
9 VS1
11 OUT2-1
FB2 19 _{10 µA}
−INE2 20
CS2 ²¹
Error Amp.2
−
+
+
+INC2 18
1.25 V
+ ^{OVP Comp.2}
−
Latch1
VCC
1.47 V
R
SQ
PWM Comp.1-2
+
−
PWM Comp.2-2
+
−
< CH2 >
Drive1-2
Drive2-2
15 CB2
17 OUT1-2
16 VS2
14 OUT2-2
12 PGND
SCP Comp.
1 µA
CSCP 22
2.1 V
bias
SR
Latch
UVLO
OSC
1
2
CT RT
1.9 V
1.3 V
bias
VCC
Ref
(2.5 V)
Power
24
3
VREF SGND
4