MB3828 Fujitsu Microelectronics, Inc., MB3828 Datasheet - Page 4

• Manufacturer Part Number: MB3828
• Description: Pentium DC/DC Converter ic
• Manufacturer: Fujitsu Microelectronics, Inc.

4
MB3828
BLOCK DIAGRAM
VD0
VD1
VD2
VD3
VD4
–IN
FB
RS
CS
14
15
16
17
18
5
6
2
4
(5-bit)
D/A
CS
20
(40 pF)
VSENSE
CT
–
+
+
Error
Amp.
OSC
1
Overvoltage
protection
POWERGOOD
RT
PWRGD
OVP
V
DTC
SCP
VB
( 10%)
(17.5%)
PWRGOOD
+
–
+
+
–
+
–
SCP
Comp.
PWM
Comp.1
PWM
Comp.2
V
CS
21
+
–
SCP
22
CS
Comp.
CSCP
UVLO
bias
Ref
24
(3.5 V)
VREF
bias
Drive
Drive
ON/OFF
LOGIC
1
2
Power
CTL
CTL
3
SGND
13
10
11
12
19
23
8
9
7
VB
CB
OUT1
VS
OUT2
PGND
CTL
ENB
V
CC