Mu lt i-Ou t p u t , Lo w -No is e P o w e r-S u p p ly
Co n t ro lle rs fo r No t e b o o k Co m p u t e rs
0–MAX1635
________________________________________________________________________________P in Co n fig u ra t io n s
TOP VIEW
CSH3
CSL3
CSH3
CSL3
FB3
28
27
26
25
24
28
27
26
25
1
2
1
2
RUN/ON3
DH3
RUN/ON3
DH3
LX3
LX3
FB3
STEER
SECFB
SYNC
3
3
BST3
DL3
BST3
4
12OUT
4
V
DD
24 DL3
5
5
MAX1631
MAX1634
MAX1630
MAX1632
MAX1633
MAX1635
6
SHDN
6
23 SHDN
23
22
21
20
19
18
17
SYNC
TIME/ON5
V+
VL
TIME/ON5
GND
7
7
22
21
20
19
18
17
16
15
V+
VL
8
GND
REF
8
9
9
REF
PGND
DL5
PGND
DL5
10
10
SKIP
SKIP
RESET 11
RESET 11
BST5
LX5
BST5
LX5
12
13
14
12
13
14
FB5
FB5
16
15
CSL5
CSH5
DH5
SEQ
CSL5
CSH5
DH5
SEQ
SSOP
SSOP
_______________________________________________________________S e le c t o r Gu id e
OVER/UNDERVOLTAGE
DEVICE
AUXILIARY OUTPUT
SECONDARY FEEDBACK
PROTECTION
MAX1630
MAX1631
MAX1632
MAX1633
MAX1634
MAX1635
12V Linear Regulator
None (SECFB input)
12V Linear Regulator
12V Linear Regulator
None (SECFB input)
12V Linear Regulator
Feeds into the 3.3V SMPS
Selectable (STEER pin)
Feeds into the 5V SMPS
Feeds into the 3.3V SMPS
Selectable (STEER pin)
Feeds into the 5V SMPS
Yes
Yes
Yes
No
No
No
______________________________________________________________________________________ 27
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
