LM2633 Advanced Two-Phase Synchronous Triple
Regulator Controller for Notebook CPUs
August 2001
LM2633 Advanced Two-Phase Synchronous Triple
Regulator Controller for Notebook CPUs
General Description
The LM2633 is a feature-rich IC that combines three
regulator controllers - two current mode synchronous buck
regulator controllers and a linear
regulator controller.
The two switching
regulator controllers operate 180˚ out of phase.
This feature reduces the input ripple RMS current, resulting in a smaller input filter.
The first switching controller (Channel 1) features an Intel mobile CPU compatible precision 5-bit digital-to-analog converter which programs the output voltage from 0.
925V to ...