HM5177 Sync. Rectifier Step Up Converter

PublishTime：2021-07-27

■General Description
●The HM5177 is a compact, high-efficiency, synchronous step-up converter with power Mosfets embedded and with output turn off true shutdown function for a single-cell Li-ion/polymer battery. The HM5177 uses only 70μA (typ) quiescent current and allows the converter to switch only when needed at no load and light loads, and when load is higher than 150mA, it uses fixed-frequency PWM technique at 1MHz. It features a current mode control for fast transient response with internal compensation. The HM5177 includes cycle-by-cycle current limit to maximum inductor current and over-temperature protection circuit. The HM5177 is suitable for iPad-like computers, smart phones and portable handheld devices.
●The HM5177 is available in a SOP8-PP package. The operating temperature range is from -45°C to +85°C.
■Features
●Up to 90% Efficiency at Iout=2A VOUT = 5V from 3.6V Input
●Low 70μA Quiescent Current
●Guaranteed 2A Output Current at VOUT = 5V from 3.3V Input
●1MH PWM Switching Frequency
●Synchronous and Embedded Power Mosfets
●No Schottky Diode Required
●Internal Soft-Start to Limit Inrush Current
●Adjustable Output
●Output turn off true shutdown function
●Current Mode Operation with Internal Compensation
●For Excellent Line and Load Transient Response
●Overload/Short-Circuit Protection
●Shutdown Current <1μA
●Thermal Shutdown
●Compact 8 pin,SOP8-PP package

Brand of Product：	H&M SEMI
Part#：	HM5177 More Part#
Product Category：	Rectifier Step Up Converter More
Application：	[ iPad-like computers ][ smart phones ][ portable handheld devices ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	SOP8-PP
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2021/03/01
Version Number：
Data Encoding：
Data Size：	1.1 MB

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