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MB3870 Datasheet(PDF) 4 Page - Fujitsu Component Limited.

Part # MB3870
Description  Pentium II DC/DC Converter IC
Download  25 Pages
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Manufacturer  FUJITSU [Fujitsu Component Limited.]
Direct Link  http://edevice.fujitsu.com/fmd/en/index.html
Logo FUJITSU - Fujitsu Component Limited.

MB3870 Datasheet(HTML) 4 Page - Fujitsu Component Limited.

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background image
4
MB3870
s BLOCK DIAGRAM
+
+
+
+
+
+
+
VB
CB
VS
OUT1
OUT2
CTL
(17.5%)
(
±10%)
VB
VREF
CSCP
VSCP
CT
(40 pF)
RT
SGND
ENB
bias
bias
DTC
VCS
CS
RS
FB
–IN
CS
Comp.
SCP
Comp.
VSENSE
PWRGOOD
POWERGOOD
PWRGD
Overvoltage
protection
OVP
PWM
Comp.2
PWM
Comp.1
Error
Amp.
VCC
PGND
13
10
8
9
11
12
19
7
23
3
24
22
1
18
17
16
15
14
4
2
6
5
20
21
OSC
D/A
(5-bit)
SCP
CTL
LOGIC
UVLO
Ref
Power
ON/OFF
CTL
Drive
1
Drive
2
CS
VD0
VD1
VD2
VD3
VD4
(3.5 V)


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