Manual

MAX783
Triple-Output Power-Supply Controller
for Notebook Computers
10 ______________________________________________________________________________________
FB5
CS5
5V
PWM
CONTROLLER
(SEE FIG. 3)
DH5
BST5
LX5
DL5
SS5
FB3
CS3
3.3V
PWM
CONTROLLER
(SEE FIG. 3)
DH3
BST3
LX3
DL3
SS3
ON5
ON3
+5V LDO
LINEAR 
REGULATOR
+3.3V
REFERENCE
300kHz/200kHz
OSCILLATOR
VDD
Q1
Q2
V+
VL
REF
GND
SYNC
VPPA
DA0
DA1
VPPB
DB0
DB1
D1
D2
VH
1.65V
1.65V
LINEAR
REGULATOR
LINEAR
REGULATOR
5V
3.3V
4.5V
STANDBY
4V
2.8V
13V TO 19V

FAULT
ON
ON
VDD REG

13V
19V
P
ON
PGND
SHDN
RDY5
MAX783
ON
Figure 2. Block Diagram