Rainbow Electronics MAX782 - Manual (Page 11)

MAX782
Triple-Output Power-Supply
Controller for Notebook Computers
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SHOOT-
THROUGH
CONTROL
R
Q
60kHz
LPF
MINIMUM
CURRENT
(IDLE-MODE)
25mV
R Q
LEVEL
SHIFT
1 µ s
SINGLE-SHOT
1X
MAIN PWM
COMPARATOR
OSC
LEVEL
SHIFT
CURRENT
LIMIT
VL
30R
1R
3.3V
4 µ A
SYNCHRONOUS
RECTIFIER CONTROL
0mV-100mV
REF, 3.3V
(OR INTERNAL
5V REFERENCE)
SS_
ON_
–100mV
VDD REG
(SEE FIG. 2)
CS_
FB_
BST_
DH_
LX_
VL
DL_
PGND
S
S
SLOPE COMP
N
N
N
Figure 3. PWM Controller Block Diagram