LTC3672B-1 Datasheet (Linear Technology) - Monolithic Fixed-Output 400mA Buck Regulator

LTC3672B-1, Monolithic Fixed-Output 400mA Buck Regulator

The LTC®3672B-1 is a triple power supply composed of a 400mA synchronous buck regulator and two 150mA lowdropout linear regulators (LDOs), where one of the LDOs can be powered from the buck output to improve efﬁciency.

Constant-frequency 2.25MHz operation is maintained down to very light loads.

The

LTC3672B-1 Features

* Triple Output Supply From a Single 2.9V to 5.5V Input

* Buck DC/DC: Fixed 1.8V Output, Up to 400mA

* LDO1: Fixed 1.2V Output, Up to 150mA

* LDO2: Fixed 2.8V Output, Up to 150mA

* ±2.5% Reference Accuracy

* Constant Frequency 2.25MHz Operation

* Minimum External Componen