Dual synchronous buck dc/dc converter delivers 95% efficiency

The LT8616, a 42-V input capable, 95% efficiency dual synchronous monolithic step-down switching regulator is a dual channel design that delivers independent 2.5-A and 1.5-A continuous current to outputs as low as 0.8 V. Its Burst Mode operation keeps quiescent current

The step-down converter features a 35-ns minimum on-time that enables 16 V_IN to 1.8 V_OUT step-down conversions, while switching at 2 MHz helps designers avoid critical noise-sensitive frequency bands, such as AM radio. Its 3.4 to 42-V input voltage range makes it ideal for automotive applications that must regulate through cold-crank and stop-start scenarios with minimum input voltages as low as 3.4 V and load dump transients in excess of 40 V.