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MAX1631EAI+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P29
MAX1630–MAX1635
Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
______________________________________________________________________________________ 25
_____________________________________________________________Application Circuits (continued)
2.2μF
5
RESET
FB5
MAX1632
MAX1635
PGND
SEQ
REF
11
9
15
12
13
14
20
19
17
16
Q3
Q4
T2
1:2.2
R2
D5
D2
18
POWER-GOOD
7
10 8
5V ON/OFF
SKIP
DL5
LX5
DH5
BST5
V
DD
2.2μF
0.1μF
C2
0.1μF
1μF
1N5819
+5V OUTPUT (3A)
GND
+2.5V REF
3
*
2
1
24
Q1
D1
Q2
L1
R1
0.1μF
0.1μF
1N5819
+3.3V OUTPUT (3A)
ON/OFF
*
TIME/ON5
RUN/ON3
FB3
28
3V ON/OFF
26
25
27
CSL5
CSH5
CSL3
CSH3
DL3
LX3
DH3
BST3
SHDN SYNC
INPUT
+6.5V TO +28V
4
23 22
10Ω
621
V+ VL
0.1μF
0.1μF
4.7μF
4.7μF
12OUT
C3
C1
C4
TO +3.3V OUTPUT TO +5V OUTPUT
+12V AT 120mA
+5V ALWAYS ON
R1 = R2 = 20mΩ
L1 = 10μH SUMIDA CDRH125-100
T2 = 10μH 1:2.2 TRANSFORMER
TRANSPOWER TECHNOLOGIES TTI-5870
Q1–Q4 = Si4410DY or IRF7413
C1 = 3 x 220μF 10V SPRAGUE 594D227X0010D2T
C2 = 2 x 220μF 10V SPRAGUE 594D227X0010D2T
C3 = C4 = 2 x 10μF 30V SANYO OS-CON 30SC10M
*VL DIODES AND OUTPUT SCHOTTKY DIODES REQUIRED
FOR THE MAX1632 ONLY (SEE OUTPUT OVERVOLTAGE PROTECTION
AND OUTPUT UNDERVOLTAGE SHUTDOWN PROTECTION SECTIONS).
**
Figure 9. Triple-Output Application for High-Voltage Batteries (MAX1632/MAX1635)
MAX1630–MAX1635
Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
26 ______________________________________________________________________________________
OPEN
MAX1631
MAX1634
V+ SHDN VLSECFB
INPUT
+6V TO +24V
C3
10Ω
ON/OFF
GND
REF SEQSYNC
1μF
5V ALWAYS ON
Q1
ON/OFF
ON/OFF
0.1μF
0.1μF
4.7μF
4.7μF
0.1μF
Q3
DL3
CSH3
CSL3
FB3
RESET
RESET OUTPUT
SKIP
STEER
L1
R1
2.5V OUTPUT
C1
DL5
LX5
DH5
BST5
25
27
26
24
1
2
3
11
10
4
8
28
7
12
13
14
20
19
17
16
18
22 23 5 21
15
69
BST3
DH3
LX3
PGND
CSL5
CSH5
RUN/ON3
TIME/ON5
0Ω
FB5
0.1μF
0.1μF
L2 R2
+3.3V OUTPUT
R1 = R2 = 15mΩ
L1 = L2 = 6.8μH SUMIDA CDRH 127-6R8MC
Q1 = Q4 = Si4410DY or 1RF7413
C1 = C2 = 2X SANYO OS-CON 10 SA220M
C3 = 4X SANYO OS-CON 30SC10M
*VL DIODES AND OUTPUT SCHOTTKY DIODES REQUIRED
FOR THE MAX1631 ONLY (SEE OUTPUT OVERVOLTAGE PROTECTION
AND OUTPUT UNDERVOLTAGE SHUTDOWN PROTECTION SECTIONS).
*
**
OPEN
0Ω
*
Q4
1N5819
Q2
1N5819
C2
Figure 10. Dual, 4A, Notebook Computer Power Supply
_____________________________________________________________Application Circuits (continued)
MAX1630–MAX1635
Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
______________________________________________________________________________________ 27
________________________________________________________________________________Pin Configurations
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
RUN/ON3
DH3
LX3
BST3
DL3
SHDN
SEQ
V+
VL
PGND
DL5
BST5
LX5
DH5
CSH5
CSL5
FB5
RESET
SKIP
REF
GND
TIME/ON5
SYNC
V
DD
12OUT
FB3
CSL3
CSH3
SSOP
SSOP
MAX1630
MAX1632
MAX1633
MAX1635
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
RUN/ON3
DH3
LX3
BST3
DL3
SHDN
SEQ
V+
VL
PGND
DL5
BST5
LX5
DH5
CSH5
CSL5
FB5
RESET
SKIP
REF
GND
TIME/ON5
SYNC
SECFB
STEER
FB3
CSL3
CSH3
TOP VIEW
MAX1631
MAX1634
_______________________________________________________________Selector Guide
MAX1631
MAX1633
MAX1632
MAX1634
MAX1635
DEVICE
None (SECFB input)
12V Linear Regulator
12V Linear Regulator
None (SECFB input)
12V Linear Regulator
AUXILIARY OUTPUT
12V Linear Regulator
Selectable (STEER pin)
Feeds into the 3.3V SMPS
Feeds into the 5V SMPS
Selectable (STEER pin)
Feeds into the 5V SMPS
SECONDARY FEEDBACK
Yes
No
Yes
No
MAX1630
No
OVER/UNDERVOLTAGE
PROTECTION
YesFeeds into the 3.3V SMPS
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P29

MAX1631EAI+

Mfr. #:
Buy MAX1631EAI+
Manufacturer:
Maxim Integrated
Description:
Switching Controllers Multi-Out Low-Noise Power-Supply Ctlr
Lifecycle:
New from this manufacturer.
Delivery:
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