Datasheet4U Logo Datasheet4U.com

LTC3440 Datasheet Buck-Boost DC/DC Converter

Manufacturer: Linear Technology (now Analog Devices)

📥 Download Datasheet

General Description

The LTC®3440 is a high efficiency, fixed frequency, BuckBoost DC/DC converter that operates from input voltages above, below or equal to the output voltage.

The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium-ion, multicell alkaline or NiMH applications where the output voltage is within the battery voltage range.

The device includes two 0.19Ω N-channel MOSFET switches and two 0.22Ω P-channel switches.

Overview

LTC3440 Micropower Synchronous Buck-Boost DC/DC Converter.

Key Features

  • nn Single Inductor nn Fixed Frequency Operation with Battery Voltages Above, Below or Equal to the Output nn Synchronous Rectification: Up to 96% Efficiency nn 25µA Quiescent Current in Burst Mode® Operation nn Up to 600mA Continuous Output Current nn No Schottky Diodes Required (VOUT < 4.3V) nn VOUT Disconnected from VIN During Shutdown nn 2.5V to 5.5V Input and Output Range nn Programmable Oscillator Frequency from 300kHz to 2MHz nn Synchronizable Oscillator nn Burst Mode Enable Control nn.

More Datasheets from Linear Technology (now Analog Devices)

Part Number Description
LTC3441 High Current Micropower Synchronous Buck-Boost DC/DC Converter
LTC3442 Micropower Synchronous Buck-Boost DC/DC Converter
LTC3443 High Current Micropower 600kHz Synchronous Buck-Boost DC/DC Converter
LTC3444 Micropower Synchronous Buck-Boost DC/DC Converter
LTC3445 I2C Controllable Buck Regulator
LTC3446 Monolithic Buck Regulator
LTC3447 I2C Controllable Buck Regulator
LTC3448 1.5MHz/2.25MHz 600mA Synchronous Step-Down Regulator
LTC3400 Micropower Synchronous Boost Converter
LTC3400B Micropower Synchronous Boost Converter