LM2742 N-Channel FET Synchronous Buck Regulator Controller for Low Output
Voltages
PRELIMINARY
March 2004
LM2742
N-Channel FET Synchronous Buck Regulator Controller
for Low Output
Voltages
General Description
The LM2742 is a high-speed, synchronous, switching regulator controller.
It is intended to control currents of 0.
7A to 20A with up to 95% conversion efficiencies.
Power up and down sequencing is achieved with the power-good flag, adjustable soft-start and output enable features.
The LM2742 operates from a low-current 5V bias and can convert from a 1V to 16V power rail.
The part utilizes a fixedfrequency,
voltage-mode, PWM control architecture and the switching frequency is adjustab...