LTC3548 Datasheet (Linear Technology) - Step-Down DC/DC Regulator

LTC3548, Step-Down DC/DC Regulator

The LTC®3548 is a dual, constant-frequency, synchronous step down DC/DC converter.

Intended for low power applications, it operates from 2.5V to 5.5V input voltage range and has a constant 2.25MHz switching frequency, allowing the use of tiny, low cost capacitors and inductors with a proﬁle ≤1mm.

LTC3548 Features

* n High Efﬁciency: Up to 95% n Very Low Quiescent Current: Only 40μA n Low Output Ripple Burst Mode® Operation n 2.25MHz Constant-Frequency Operation n High Switch Current: 0.7A and 1.2A n No Schottky Diodes Required n Low RDS(ON) Internal Switches: 0.35Ω n Current Mode Operation for Excellent Line a