MAX1632AEAI Datasheet, PDF (11/29 Pages) Maxim Integrated Products – Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers

Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
INPUT
+5V ALWAYS ON
+3.3V
R1
R2
SHDN
V+ SYNC
CSL5
-
+
4.5V
MAX1632A
VL
REF
BST3
DH3
LX3
DL3
ON/OFF
5V
LINEAR
REG
2.5V
REF
3.3V
VL
PWM
LOGIC
200kHz
TO
300kHz
OSC
12V
LINEAR _IN
REG
SECFB
+
-
13V
12OUT
V_DD
BST5
DH5
5V
LX5
PWM
VL
LOGIC
DL5
PGND
CSH3
CSL3
-
FB3
-
0.6V
VL
REF
LPF
60kHz
OV/UV
FAULT
1.75V
2.68V
2.388V
-
-
OUTPUTS
UP
REF
LPF
60kHz
CSH5
+
CSL5
FB5
+
0.6V
TIMER
RESET
TIME/ON5
+
REF
POWER-ON
SEQUENCE
LOGIC
RUN/ON3
2.6V
+
SEQ
-
1V
GND
+12V
RAW +15V
+5V
R3
R4
Figure 2. MAX1632A Block Diagram
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