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零件编号 | G5330A | ||
描述 | High Efficiency 10A Synchronous Buck Converter | ||
制造商 | Global Mixed-mode Technology | ||
LOGO | |||
1 Page
Global Mixed-mode Technology
G5330A
High Efficiency 10A Synchronous Buck Converter
for 5V System Power
Features
Ultra-High Efficiency
Low Quiescent Current of 40µA
Integrated 8.5mΩ at VCC=5V N-Channel
MOSFET for Low Side
Integrated 20mΩ at VCC=5V N-Channel
MOSFET for High Side
No Current-Sense Resistor (Lossless ILIMIT)
Quasi-PWM with 100ns Load-Step Response
1% VOUT Accuracy Over Line and Load
Programmable Switching Frequency
4.5V to 5.5V Adjustable Output Range
5.5V to 28V Adapter or Battery Input Range
Integrated Boost Switch
OVP & UVP
Over Temperature Protection (non-latch)
3.3ms Soft-Start
Power-Good Indicator
Fixed 5V, 80mA Bootstrapped Linear Regulator
Applications
Notebook Computers
I/O Supply
Networking Power Supply
Ordering Information
ORDER
NUMBER
G5330AQN1U
Note: QN: QFN4X4-28
1: Bonding Code
U : Tape & Reel
MARKING
5330A
Pin Configuration
General Description
G5330A is a 10A, synchronous DC/DC buck converter
with integrated 20mΩ N-channel high-side MOSFET
and 8.5mΩ N-channel low-side MOSFET. It uses con-
stant on-time control scheme to handle wide in-
put/output voltage ratios with ease and provides 100ns
“instant-on” response to load transients while main-
taining a relatively constant switching frequency. The
G5330A achieves high efficiency at a reduced cost by
eliminating the current-sense resistor found in tradi-
tional current-mode PWMs. Single-stage buck conver-
sion allows these devices to directly step down
high-voltage batteries for the highest possible effi-
ciency. The built-in 5V LDO supports 80mA for internal
circuit with automatic bootstrapping to DC/DC con-
verter output. The G5330A is intended for the 5V sys-
tem power supply of Notebook Computer. The
G5330A is available in QFN4X4-28 package.
TEMP.
RANGE
-40°C to +85°C
PACKAGE
(Green)
QFN4X4-28
ENL 1
AGND 2
VCC 3
PGND 4
LX 5
LX 6
LX 7
LX 8
AGND
V+
LX
20 V+
19 V+
18 V+
17 V+
Ver: 1.0
Feb 14, 2014
G5330A QFN4X4-28
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
TEL: 886-3-5788833
http://www.gmt.com.tw
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页数 | 1 页 | ||
下载 | [ G5330A.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
G5330A | High Efficiency 10A Synchronous Buck Converter | Global Mixed-mode Technology |
G5330AQN1U | High Efficiency 10A Synchronous Buck Converter | Global Mixed-mode Technology |
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