XT1801 - Silinktek

XT1801 1.5MHz Micropower Synchronous Boost Converter

The XT1801 is a synchronous, fixed frequency, step-up DC/DC converters delivering high efficiency in a 8-lead SOP package. The devices contain an internal NMOS switch and PMOS synchronous rectifier. A switching frequency of 1.5MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The current mode PWM desi.

Features

automatic shifting to power saving PFM Mode operation at light loads. Antiringing control circuitry reduces EMI concerns by damping the inductor in discontinuous mode, and the devices feature low shutdown current of under 1µA. Both devices are available in the low profile SOP-8/PP package.
■ Applications
 MP3/4 PMP
 Digital Camera
 LCD Bias Voltage
 Handheld Instruments
 Wireless Handsets
 GPS Receivers
■ Typical Application Circuit
■ Features
 Up to 93% efficiency
 1.5MHz fixed frequency switching
 Internal synchronous rectifier
 2.5V to 5V output range
 Automatic PFM/PWM mode ope.