LTC3407-4 Datasheet PDF - Linear Technology 2.25MHz Step-Down DC/DC Regulator Specs

LTC3407-4 - 2.25MHz Step-Down DC/DC Regulator

Datasheet Summary

Description

The LTC®3407-4 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.

Features

n High Efﬁciency: Up to 95% n Very Low Quiescent Current: Only 40μA n 2.25MHz Constant Frequency Operation n High Switch Current: 1.2A on Each Channel n No Schottky Diodes Required n Low RDS(ON) Internal Switches: 0.35Ω n Current Mode Operation for Excellent Line and Load Transient Response n Short-Circuit Protected n Low Dropout Operation: 100% Duty Cycle n Ultralow Shutdown Current: IQ < 1μA n Output Voltages from 5V down to 0.6V n Power-On Reset Output n Externally Synchronizable Oscillator n.

Datasheet Details

Part number	LTC3407-4
Manufacturer	Linear Technology
File Size	268.17 KB
Description	2.25MHz Step-Down DC/DC Regulator
Datasheet	LTC3407-4 Datasheet
Additional preview pages of the LTC3407-4 datasheet.

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Full PDF Text Transcription

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FEATURES n High Efﬁciency: Up to 95% n Very Low Quiescent Current: Only 40μA n 2.25MHz Constant Frequency Operation n High Switch Current: 1.2A on Each Channel n No Schottky Diodes Required n Low RDS(ON) Internal Switches: 0.35Ω n Current Mode Operation for Excellent Line and Load Transient Response n Short-Circuit Protected n Low Dropout Operation: 100% Duty Cycle n Ultralow Shutdown Current: IQ < 1μA n Output Voltages from 5V down to 0.6V n Power-On Reset Output n Externally Synchronizable Oscillator n Small Thermally Enhanced MSOP and 3mm × 3mm DFN Packages APPLICATIONS n PDAs/Palmtop PCs n Digital Cameras n Cellular Phones n Portable Media Players n PC Cards n Wireless and DSL Modems LTC3407-4 Dual Synchronous, 800mA, 2.

Published: Mar 25, 2010 |