Notebook CPU Step-Down Controller for Intel
Mobile Voltage Positioning (IMVP -II)
MAX1718
R1
20Ω
C7
1µF
9
V
CC
2
SKP/SDN
SHUTDOWN
V
CC
R2
100kΩ
R3
100kΩ
10
25
24
23
TON
D0
D1
D2
LX 27
2x
17
V
DD
V+
BST
1
26
D1
CMPSH-3
2x
28
IRF7811A
Q1
C3
0.1µF
L1
0.68µH
SUMIDA
CEP125#4712-TO11
D2
CENTRAL
SEMICONDUCTOR
CMSH5-40
R8
0.004Ω
OUTPUT
0.6V TO 1.75V
C4
6 x 270µF, 2V
PANASONIC SP
EEFUE0D271R
C2, 25V, X5R
5 x 10µF
5V INPUT
C1
1µF
BATT 7V TO 24V
DH
22
21
MAX1718
D3
D4
GND
DL
16
15
4
FDS7764A
Q2
MUX CONTROL
REF
SUSPEND
INPUT
DECODER
R4
62kΩ
C6
47pF
19 ZMODE
18 SUS
7 S0
8 S1
3
FB
NEG
5
TIME
13
R6
511kΩ
REF
VGATE
14
20
R7
4.75kΩ
5V
R5
100kΩ
POWER-GOOD
OUTPUT
6
C5
0.22µF
11
R18
24.9kΩ
R19
27.4kΩ
CC
POS
12
ILIM
OVP
Figure 1. Standard Application Circuit
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11