19-3174; Rev 1; 10/05
Low-Cost, Linear-Regulator
LCD Panel Power Supplies
General Description
Features
♦ High-Performance Linear Regulator
The MAX8710/MAX8711/MAX8712/MAX8761 offer com-
plete linear-regulator power-supply solutions for thin-film
transistor (TFT) liquid-crystal-display (LCD) panels used
in LCD monitors and LCD TVs. All four devices include a
1.6% Output Accuracy
Works with Small Ceramic Output Capacitors
Fast Transient Response
Foldback Current Limit
high-performance AV
linear regulator, a positive
DD
♦ 50mA Negative Regulated Charge Pump
♦ 20mA Positive Regulated Charge Pump with
Adjustable Delay
♦ Built-In Power-Up Sequence
♦ High-Current Operational Amplifier
(MAX8710/MAX8711/MAX8761)
150mA Output Short-Circuit Current
12V/µs Slew Rate
charge-pump regulator, a negative charge-pump regula-
tor, and built-in power-up sequence control. The
MAX8710/MAX8711/MAX8761 also include a high-cur-
rent operational amplifier. Additionally, the MAX8710/
MAX8761 provide logic-controlled high-voltage switches
to control the positive charge-pump output.
The linear regulator directly steps down the input voltage
to generate the supply voltage for the source-driver ICs
(AV ). The two built-in charge-pump regulators
DD
12MHz, -3dB Bandwidth
Rail-to-Rail Inputs/Output
♦ Dual-Mode™ High-Voltage Switches
are used to generate the TFT gate-on and gate-off sup-
plies. The high-current operational amplifier is typically
used to drive the LCD backplane (VCOM) and features
high output current (150mA), fast slew rate (12V/µs), and
wide bandwidth (12MHz). Its rail-to-rail inputs and output
maximize flexibility.
The MAX8710/MAX8761 are available in a 24-pin thin
QFN package, the MAX8711 is available in a 16-pin thin
QFN package, and the MAX8712 is available in a 12-pin
thin QFN package. All three packages are 4mm x 4mm
with a maximum thickness of 0.8mm for ultra-thin LCD
panel design. The MAX8710/MAX8711/MAX8712 oper-
ate over the -40°C to +100°C temperature range and the
MAX8761 operates over the -40°C to +85°C range.
(MAX8710/MAX8761)
♦ Thermal Protection
♦ Latched Fault Protection with Timer
Ordering Information
PKG
CODE
PART
TEMP RANGE PIN-PACKAGE
24 Thin QFN
4mm x 4mm
MAX8710ETG+ -40°C to +100°C
MAX8711ETE+ -40°C to +100°C
MAX8712ETC+ -40°C to +100°C
T2444-4
16 Thin QFN
4mm x 4mm
T2444-4
T2444-4
T2444-4
12 Thin QFN
4mm x 4mm
Applications
LCD Monitor Panel Modules
24 Thin QFN
4mm x 4mm
MAX8761ETG+ -40°C to +85°C
+Denotes lead-free package.
LCD TV Panel Modules
Minimum Operating Circuit
Pin Configurations
IN
IN
TOP VIEW
GND
REF
INL
18 17 16 15 14 13
REF
AV
DD
OUTL
FBL
CTL 19
FBL 20
12 N.C.
MAX8710
MAX8761
SUPCP
FBN
11 DRVP
VIN
SHDN
DRVP
MODE 21
DLP 22
FBN 23
SRC 24
10 DRVN
V
GOFF
DRVN
DLP
MAX8710
MAX8761
9
8
7
SUPCP
OUTL
IN
VP
AV
DD
POSB
SUPB
AV
DD
FBP
SRC
+
VCOM
OUTB
1
2
3
4
5
6
NEGB
MODE
V
GON
GON
DRN
REF
CTL
CTL
THIN QFN 4mm x 4mm
THR
Pin Configurations continued at end of data sheet.
Dual Mode is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.