Rainbow Electronics MAX8728 - Manual (Page 21)

MAX8728
Low-Cost, Multiple-Output
Power Supply for LCD Monitors/TVs
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MODE
CTL
DEL
SRC
GON
DRN
0.5 x V REF
GATE DONE
5 μA
REF
Q1
4mA
Q4
Q3
R
4R
5R
50 μA
SWITCH CONTROL
THR
9R
1k Ω
R
REF
1k Ω
SHDN
FAULT
EN
MAX8728
Q2
Figure 5. Switch-Control Functional Diagram