Datasheet
Multi-Output Power Supplies with VCOM Amplifier
and High-Voltage Gamma Reference for LCD TVs
MAX17126/MAX17126A
18 _____________________________________________________________________________________
Figure 1. Typical Operating Circuit
C1
IN2
IN2
D1
VIN
12V
BST
C2
LX1
LX1
L1
10µH
0.1µF
D2
0.1uF
C14
0.1µF
AVDD
C5
0.1µF
VIN
C4
0.1µF
SUPP
VGH
DRVP
0.1µF
C11
1µF
C15
33pF
OUT
3.3V, 1.5A
INVL
OUT
FB2
LX2
LX2
L2
1µF
VL
VL
GREF
VGHM
VCOM
AVDD
16V, 1A
R
COMP
25kI
VGOFF
-6V, 50mA
VGH
35V, 50mA
VREF_O
0.22µF
REF
REF
GND
AVDD
VREF_I
VREF_FB
SUPN
DRVN
C10
0.1µF
D4
FBN FBP CPGND
R9
R10
FROM
TCON
GVOFF
THR
DRN
OGND
OPO
OPN
FSEL
ON/OFF
EN
DLY1
UNCONNECTED OR 150nF
SS
1.61kI
1µF
1.3nF
R5
REF
R6
R3
R4
D3
C12
C13
D5
13.3kI
2.2kI
10kI
VGHM
COMP
1kI
PGND
PGND
3Ω
150µF
C
COMP
1nF
0.1µF
VIN
OPP
VOP
VDET
PGOOD
CLIM
GD
Q1
FB1
R7
68.1kI
R8
422kI
GD_I
13.3kI
2.2kI
R1
R2
C3
VL (OR 3.3V)
MAX17126
MAX17126A