LTC3548-1 Datasheet - Linear Technology

LTC3548-1 Fixed Output 2.25MHz Step-Down DC/DC Regulator

The LTC®3548-1 is a dual, ﬁxed output, 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 .

LTC3548-1 Features

* n High Efﬁciency: Up to 95% n 1.8V at 800mA/1.575V at 400mA n Very Low Quiescent Current: Only 40μA n 2.25MHz Constant-Frequency Operation n High Switch Current: 1.2A and 0.7A n No Schottky Diodes Required n VIN: 2.5V to 5.5V n Current Mode Operation for Excellent Line and Load Transient Response n

LTC3548-1_LinearTechnology.pdf