The LTC3838 is a dual output, dual phase buck controller that employs a controlled constant on-time, valley current mode architecture to provide fast load step response, high switching frequency and low duty cycle capability. It accepts a wide input range, 4.5V to 38V, and can produce 0.6V to 5.5V outputs.
This document is Design Note 1028 from Linear Technology Corporation, focusing on the LTC3838 dual output, dual phase buck controller. The device employs a controlled constant on-time, valley current mode architecture to provide fast load step response and high switching frequency ranging from 200kHz to 2MHz.
The LTC3838 is a dual output, dual phase buck controller.
It accepts a wide input range from 4.5V to 38V.
It can produce outputs ranging from 0.6V to 5.5V.