LTC3440EDD - Linear Technology

Manufacturer Part Number

LTC3440EDD

Manufacturer

Linear Technology

Introduction

The LTC3440EDD is a high-efficiency, DC-DC step-up/step-down (buck-boost) switching regulator with an adjustable output voltage. It's designed for portable applications that require a wide input voltage range.

Product Features and Performance

Adjustable output voltage from 2.5V to 5.5V

Operates from input voltages as low as 2.5V and as high as 5.5V

Integrated high-side and low-side MOSFET switches

Synchronous rectification for high efficiency

Switching frequency adjustable from 300kHz to 2MHz

Capable of delivering up to 600mA of output current

Product Advantages

Wide input voltage range

Efficient buck-boost topology

Small 10-pin DFN (3x3mm) package

Adjustable output voltage

Synchronous rectification for high efficiency

Key Technical Parameters

Input voltage range: 2.5V to 5.5V

Output voltage range: 2.5V to 5.5V

Maximum output current: 600mA

Switching frequency: 300kHz to 2MHz

Operating temperature range: -40°C to 85°C

Quality and Safety Features

Thermal shutdown protection

Short-circuit protection

Overvoltage protection

Compatibility

The LTC3440EDD is compatible with a wide range of portable electronic devices and applications that require a flexible, high-efficiency power supply.

Application Areas

Portable electronics

Battery-powered devices

USB-powered applications

Industrial and medical equipment

Product Lifecycle

The LTC3440EDD is an active product and is not nearing discontinuation. Linear Technology provides ongoing support and offers replacement or upgrade options as needed.

Several Key Reasons to Choose This Product

Wide input voltage range for versatility

Efficient buck-boost topology for extended battery life

Small, space-saving package

Adjustable output voltage for flexible power requirements

Robust protection features for reliable operation

Proven performance and reliability from a trusted manufacturer