G5310 致新代理商 GMT DC-DC系列负载点（同步准PWM降压转换器）

Part Number	Vin (V)min.	Vin (V)max.	IOUT(A)	FSW (k Hz)	FB (V)	HSRON (mΩ)	LSRON(mΩ)	Note	Package
G5310	4.5	28	12	ADJ	0.75	20	8.5	EN, PGOOD, ILMIT is set by a resistor	QFN4X4-28

High Efficiency 10A Synchronous Buck Converter

General Description

G5310 is a 10A, synchronous DC/DC buck converter with integrated 20mΩ N-channel high-side MOSFETand 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 G5310 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 G5310 is intended for the power supply of Notebook Computer, or other low-voltage supplies as low as 0.75V. The G5310 is available in QFN4X4-28 and QFN5X5-32 package.

Features
Ultra-High Efficiency
Integrated 8.5mΩat VDD=5V N-Channel MOSFET for Low Side
Integrated 20mΩat VDD=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
0.75V to 3.6V Adjustable Output Range
4.5V to 28V Adapter or Battery Input Range
Integrated Boost Switch
OVP & UVP
Over Temperature Protection (non-latch)
3.3ms Soft-Start
Power-Good Indicator

Applications
Notebook Computers
I/O Supply
Chipset/RAM Supply as Low as 0.75V
Networking Power Supply

Ordering Information