G5177A General Description  

The G5177A is a compact, high-efficiency, synchro-nous step-up converter with power Mosfets embedded and with output shutdown and adjustable output cur-rent limiting with foldback for a single-cell Li-ion/polymer battery. The G5177A uses only 50μA (typ) quiescent current and allows the converter to switch only when needed at no load and light loads, and when load is higher than 100mA, it uses fixed-frequency PWM technique at 1MHz. It features a current mode control for fast transient response with internal compensation. The G5177A includes cy-cle-by-cycle current limit to maximum inductor current and over-temperature protection circuit. The G5177A is suitable for iPad-like computers, smart phones and portable handheld devices.   The G5177A is available in a 3mm X 3mm TDFN package. The operating temperature range is from -45°C to +85°C.

Features  

* Up to 93% Efficiency at VOUT = 5V from 3.3V In-put  

* Low 50μA Quiescent Current  

* Guaranteed 2.1A Output Current at VOUT = 5V from 3.3V Input  

* 1MHz PWM Switching Frequency  

* Synchronous and Embedded Power Mosfets; No Schottky Diode Required  

* Internal Soft-Start to Limit Inrush Current 

* Adjustable Output  

* Adjustable Output Current Limit 

* Output Shutdown  

*  Current Mode Operation with Internal Com-pensation for Excellent Line and Load Transient Response  

* Overload/Short-Circuit Protection with hiccup control  

* Shutdown Current <1μA 

* Thermal Shutdown  

*  Compact 10-Pin, 3mm x 3mm TDFN Package    

Application  

* iPad-like computers, smart phones and port- able handheld devices.

企业名：珠海市金盈电子科技有限公司

类型：贸易/代理/分销

电话： 0756-8947678
0756-8712028

手机：18926988298

联系人：王生/陈生

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地址：广东珠海珠海拱北昌盛路366号