LT1576 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 LT1576 is a modified version of the industry standard LT1376 optimized for noise sensitive applications
- 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
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