uP1540 Overview
The uP1540 is a pact synchronous-rectified buck controller specifically designed to operate from 5V or 12V supply voltage and to deliver high quality output voltage as low as 0.8V. The uP1540 adopts proprietary RCOTTM technology, providing flexible selection of output LC filter and excellent transient response to load and line change. The uP1540 supports both tracking mode and stand-alone mode operation.
uP1540 Key Features
- 3.3V to 12V VIN Input Range
- 0.8V VREF with 1.0% Accuracy
- Support VCC = 5V, VIN = 19V Support Stand-Alone and Tracking Mode Operation
- Offset Voltage Tuning pensated Constant On Time Operation
- Quasi Constant Frequency Operation
- Fast Transient Response
- Smooth Mode Transition
- Uses Lower MOSFET RDS(ON) Internal Soft Start