Features

?  Current Mode Operation For Excellent Line and Load Transient Response

?  Low Quiescent Current: 70μA

?  700mA Output Current

?  Input Voltage: 2.5V ～ 5.5V

?  Output Voltage: 0.6V ～ 5.5V

?  No Schottky Diode Required

?  1.4MHz Fixed Frequency Switching

?  Short-Circuit Protection

?  Low Profile SOT-23-6L Package (lead-free packaging is now available)

Applications

?  Digital cameras and MP3

?  Palmtop computers / PDAs

?  Cellular phones

?  Wireless handsets and DSL modems

?  Portable media players

?  PC cards

Description

The HX1115 is a high efficiency synchronous, dual channel 700mA Synchronous Buck DC/DC converter working under an input voltage range of 2.5V to 5.5V. It integrates two synchronous buck DC-DC converters. 100% duty cycle capability extends battery life in portable devices, while the quiescent current is 70μA with no load.

Switching frequency is internally set at 1.4MHz, allowing the use of small surface mount inductors and capacitors.

The HX1115 converters are available in the industry standard SOT-23-6L packages (or upon request).

Typical Application Circuits