GMT致新 G2280HL1U QFN3.5X4.5-2010A全集成同步升压变换器 GMT致新台湾进口原装芯片

　　General Description

　　The G2280 is a high efficiency, synchronous, COT,

　　boost converter .The G2280 has wide input voltage

　　range from 2.7V to 12V to support applications with

　　single cell or two cell Lithium batteries. The device has

　　10A switch current capability and is capable of providing

　　an output voltage up to 12.6V.

　　The G2280 uses adaptive constant off-time peak

　　current control topology to regulated the output voltage.

　　In moderate to heavy load condition, the G2280 works

　　in the PWM mode. In light load condition, the device

　　has two operation modes selected by the MODE pin.

　　One is the PFM mode and another one is forced PWM

　　mode. The switching frequency in the PWM mode is

　　adjustable ranging from 200kHz to 2.2MHz by an

　　external resistor. A programmable soft-start function,

　　and an adjustable switching peak current limit function

　　are also implanted in G2280. In addition, 13.2V output

　　overvoltage protection, cycle-by-cycle overcurrent

　　protection, and thermal shutdown protection are also

　　embedded.

　　The G2280 is available in QFN3.5x4.5-20 package.

　　Features

　　2.7V ~ 12V Input Voltage Operation.

　　4.5V ~ 12.6V Output Voltage Range

　　91% Efficient DC/DC Converter

　　10A Switch Current

　　Resistor-Programmable Switch Peak Current

　　Limit

　　Adjustable Switching Frequency:200kHz to

　　2.2MHz

　　Mode Selection Between PFM Mode and Forced

　　PWM Mode at Light Load

　　Programmable Soft Start

　　Output Overvoltage Protection at 13.2V

　　Cycle-by-Cycle Overcurrent Protection

　　Built-In OTP Protection

　　QFN3.5X4.5-20 Package.

　　Applications

　　Battery-powered Products

　　Portable POS terminal

　　E-Cigarette

　　Power Bank