MAX1516 Datasheet, PDF (13/26 Pages) Maxim Integrated Products – TFT-LCD DC-DC Converters with Operational Amplifiers

TFT-LCD DC-DC Converters with
Operational Amplifiers
VIN
4.5V TO 5.5V
LX
0.1µF
D3
VGOFF
-8V/50mA
C1
22µF
220µF
R10
10Ω
C18
0.1µF
180kΩ
6.8kΩ
0.1µF
Q2
R7
332kΩ
1%
0.22µF
R8
40.2kΩ
1%
0.22µF
0.033µF
TO VCOM
BACKPLANE
L1
3.0µH
LX
D1
IN
COMP
C2
22µF
LX
R1
95.3kΩ
1%
FB
R1
10.2kΩ
1%
LX
0.1µF
AGND
PGND
0.1µF
D2
MAX1518
DRVN
FBN
DRVP
FBP
6.8kΩ
R4
192kΩ
1%
R5
10.0kΩ
1%
Q1
0.47µF
REF
DEL
NEG1
OUT1
NEG2
OUT2
OUT3
NEG4
OUT4
NEG5
OUT5
SRC
COM
DRN
CTL
SUP
BGND
POS1
POS2
POS3
POS4
POS5
0.1µF
VGON
24V/20mA
VMAIN
13V/500mA
Figure 1. Typical Operating Circuit
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