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
| ORDER NUMBER | MARKING | TEMP. RANGE | PACKAGE (Green) |
| G5310QN2U | 5310 | ~40°C to +85°C | QFN4X4-28 |
| G5310QA1U | 5310 | ~40°C to +85°C | QFN5X5-32 |
Note: QN: QFN4X4-28
QA: QFN5X5-32
1,2: Bonding Code U : Tape & Reel
Pin Configuration
GMT致新代理商，欢迎咨询13244774414，还有更多精彩致新电源管理IC分享《致新DC-DC》，《DC-DC芯片》。
