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G5335

更新时间: 2024-09-25 01:25:51
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描述
High Efficiency 10A Synchronous Buck Converter

G5335 数据手册

  
G5335  
Global Mixed-mode Technology  
High Efficiency 10A Synchronous Buck Converter  
Features  
General Description  
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Ultra-High Efficiency  
G5335 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-onresponse to load transients while main-  
taining a relatively constant switching frequency. The  
G5335 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 G5335 is intended for the power supply of  
Notebook Computer, or other low-voltage supplies as  
low as 0.8V. The G5335 is available in QFN4X4-23  
package.  
Integrated 8.5mΩ at VCC=5V N-Channel  
MOSFET for Low Side  
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Integrated 20mΩ at VCC=5V N-Channel  
MOSFET for High Side  
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No Current-Sense Resistor (Lossless ILIMIT)  
Quasi-PWM with 100ns Load-Step Response  
1% VOUT Accuracy Over Line and Load  
Programmable Switching Frequency  
Adjustable Output Range from 0.8V  
4.5V to 28V Adapter or Battery Input Range  
Integrated Boost Switch  
OVP & UVP  
Over Temperature Protection (non-latch)  
Adjustable Soft-Start  
Power-Good Indicator  
Applications  
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Notebook Computers  
I/O Supply  
Chipset/RAM Supply as Low as 0.8V  
Networking Power Supply  
Ordering Information  
ORDER  
NUMBER  
G5335QT1U  
TEMP.  
RANGE  
PACKAGE  
(Green)  
MARKING  
5335  
-40°C to +85°C  
QFN4X4-23  
Note: QT: QFN4X4-23  
1: Bonding Code  
U : Tape & Reel  
Pin Configuration  
1
2
3
4
5
6
PGOOD  
EN  
17 LX  
16 LX  
15 PGND  
PFM  
LX  
V+  
AGND  
14 PGND  
13 PGND  
FB  
TON  
12  
PGND  
G5335 QFN4X4-23  
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.  
TEL: 886-3-5788833  
http://www.gmt.com.tw  
Ver: 0.3  
Jun 19, 2013  
1

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