Datasheet

Multi-Output Power Supplies with VCOM Amplifier
and High-Voltage Gamma Reference for LCD TVs
MAX17126/MAX17126A
20 _____________________________________________________________________________________
Figure 2. Functional Diagram
VIN
LX1
L1
PGND
AVDD
FROM
TCON
VCOM
VL (OR 3.3V)
FB1
COMP
STEP-UP
REG
STEP-DOWN
REG
OSC
POSITIVE
CHARGE
PUMP
NEGATIVE
CHARGE
PUMP
GAMMA
REF
REF
VL
150mV
HIGH-
VOLTAGE
SWITCH
BLOCK
SEQUENCE
CLIM
GD_I
GD
PGOOD
VDET
VCOM
AMP
OPP
VOP
OPN
OPO
OGND
DRN
THR
FSEL
VGHM
VGH
VIN
REF
VGHM
VGH
SUPP
GD_I
DRVP
ON/OFF
BST
SUPN
50%
OSC
CPGND
CPGND
FBP
IN2
FBN
DRVN
VREF_O
VREF_I
SS
VREF_FB
REF
VGOFF
GVOFF
AVDD
DLY1
GND
REF
GREF
EN
AVDD
REF
VL
INVL
FB2
OUT
LX2
IN2
VL
OUT
VIN
VL