HM1470H中文資料華之美半導(dǎo)體數(shù)據(jù)手冊PDF規(guī)格書

DESCRIPTION

The HM1470H is a fully integrated, high-efficiency 2A synchronous rectified step-down converter. The HM1470H operates at high efficiency over a wide output current load range.

This device offers two operation modes, PWM control and PFM Mode switching control, which allows a high efficiency over the wider range of the load.

The HM1470H requires a minimum number of readily available standard external components and is available in a 6-pin SOT23 ROHS compliant package.

FEATURES

● High Efficiency: Up to 96

● 1MHz Frequency Operation

● 2A Output Current

● No Schottky Diode Required

● 4.2V to 18V Input Voltage Range

● 0.8V Reference

● Slope Compensated Current Mode Control for Excellent Line and Load Transient Response

● Integrated internal compensation

● Stable with Low ESR Ceramic Output Capacitors

● Over Current Protection with Hiccup-Mode

● Thermal Shutdown

● Inrush Current Limit and Soft Start

● Available in SOT23-6

● -40°C to +85°C Temperature Range

APPLICATIONS

● Distributed Power Systems

● Digital Set Top Boxes

● Flat Panel Television and Monitors

● Wireless and DSL Modems

● Notebook Computer