LT1578 Overview
Key Features
- A 1.5A switch is included on the die along with all the necessary oscillator, control and logic circuitry
- The topology is current mode for fast transient response and good loop stability
- The LT1578 is a modified version of the LT1507 that has been optimized for noise sensitive applications
- It will operate over a 4V to 15V input range
- In addition, the reference voltage has been lowered to allow the device to produce output voltages down to 1.2V
- Quiescent current has been reduced by a factor of two
- Switch on resistance has been reduced by 30%
- Switch transition times have been slowed to reduce EMI generation
- The oscillator frequency has been reduced to 200kHz to maintain high efficiency over a wide output current range
- U APPLICATIO S s s s s Portable Computers Battery-Powered Systems Battery Chargers Distributed Power Systems
