LM2645
Description
The LM2645 is a feature-rich IC that bines two current mode synchronous buck regulator controllers, an adjustable linear regulator controller and a fixed 3.3V standby output rail.
Key Features
- GENERAL n 4.5V to 30V input range
- Power good function
- Input under-voltage lockout n 10 µA Shutdown/Recycle for entire chip
- Thermal shutdown
- TSSOP package SWITCHING SECTION
- Two synchronous buck regulators for fixed 5V/3.3V or adjustable outputs
- Outputs adjustable from 1.3V to 5.5V n 0.04% (typical) line and load regulation error
- Selectable switching frequency 200/300 kHz
- Two channels operating 180˚ out of phase
- Separate on/off for each channel
