G5535 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Charge-Pumps and High-Current OP

Global Mixed-mode Technology Inc.
G5535
LCD Panel Power Supplies with Low-Cost Linear-
Regulator, Charge-Pumps and High-Current OP
Features
„ High-Performance Linear Regulator
Š 1.6% Output Accuracy
Š Works with Small Ceramic Output Capacitors
Š Fast Transient Response
Š Foldback Current Limit
„ High-Current Operational Amplifier:
Š 12V/µs Slew Rate
Š 12MHz, -3dB Bandwidth
Š Rail-to-Rail Inputs/Output
„ 100mA Negative Charge Pump Regulator
„ 50mA Positive Charge Pump Regulator with
Adjustable Delay
„ Built-In Power-Up Sequence
„ Gate-on Pulse Modulator for Sequence & Dis-
charge Control
„ Thermal Protection
„ Latched Fault Protection with Timer
„ TQFN4X4-24 Package
Applications
„ LCD Monitor Panel Modules
„ LCD TV Panel Modules
Pin Configuration
General Description
G5535 incorporates a high-performance linear regula-
tor, two low-power charge-pump regulators, a high-
current operational amplifier, and logic-controlled
gate-on pulse modulator to control the positive
charge-pump output sequence and waveform.
The linear regulator generates the source-driver sup-
ply voltage from the input voltage directly. The two
charge-pump regulators generate the positive gate-on
and negative gate-off supply voltages. The operational
amplifier supplies the VCOM buffer with high output
current, fast slew rate and wide bandwidth perform-
ances for driving capacitive loads. The gate-on pulse
modulator control (SWCTL) is independent of the
SHDN chip enable control.
The G5535 adopts a 24-pin TQFN package which is
4mm × 4mm with a maximum thickness of 0.8mm for
ultra-thin LCD panel application.
Ordering Information
ORDER
NUMBER
MARKING
G5535R51U
5535
Note: R5: TQFN4X4-24
1: Bonding Code
U: Tape & Reel
TEMP.
RANGE
-40°C to 85°C
PACKAGE
(Pb free)
TQFN4X4-24
Ver: 0.1
Jun 04, 2008
GON 1
DRN 2
REF 3
POSOP 4
INL 5
NEGOP 6
Thermal
Pad
18 SHDN
17 FBP
16 THR
15 VDDOP
14 OUTOP
13 GND
G5535 TQFN4X4-24
1
TEL: [phone]
http://www.gmt.com.tw