HX1151 - hx-semi

HX1151 1.3A Synchronous Step-Down Converter

The HX1151 are high-efficiency, high frequency synchronous step-down DC-DC regulator ICs capable of delivering up to 1.3A output currents. The HX1151 can operate over a wide input voltage range from 2.3V to 6V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. It is ideal for powering portable equipment t.

Features

x High Efficiency: Up to 96% x 1.5MHz Constant Frequency Operation x 1300mA Output Current x No Schottky Diode Required x 2.3V to 6V Input Voltage Range x Adjustable Output Voltage Range Options from 0.6V to Vin x 100% Duty Cycle Low Dropout Operation x Low Quiescent Current: 35µA x Slope Compensated Current Mode Control for Excellent Line and Load Transient Response x Short Circuit Protection x Thermal Fault Protection x Inrush Current Limit and Soft Start x <1µA Shutdown Current x Tiny SOT23-5 Package APPLICATIONS x Cellular and Smart Phones x Wireless and DSL Modems x PDAs x Digital Still a.