LTC3421EUF - Linear Technology

Manufacturer Part Number

LTC3421EUF

Manufacturer

Linear Technology

Introduction

The LTC3421EUF is a high-efficiency, high-frequency step-up switching regulator capable of operating from an input voltage as low as 0.5V and providing up to 1A of output current.

Product Features and Performance

Wide input voltage range: 0.5V to 4.5V

Adjustable output voltage from 2.4V to 5.25V

High efficiency up to 95%

Switching frequency range: 100kHz to 3MHz

1A output current capability

Synchronous rectification for high efficiency

Internal soft-start

Thermal shutdown protection

Small 24-pin 4mm x 4mm QFN package

Product Advantages

Ability to operate from low input voltages

High efficiency and high power density

Flexible output voltage configuration

Robust protection features

Key Technical Parameters

Input Voltage Range: 0.5V to 4.5V

Output Voltage Range: 2.4V to 5.25V

Output Current: 1A (Switch)

Switching Frequency: 100kHz to 3MHz

Topology: Boost

Number of Outputs: 1

Output Configuration: Positive

Synchronous Rectifier: No

Quality and Safety Features

Thermal shutdown protection

Internal soft-start

Robust package and design for reliability

Compatibility

The LTC3421EUF is a general-purpose step-up switching regulator compatible with a wide range of low-voltage input sources and output voltage requirements.

Application Areas

Battery-powered devices

Portable electronics

Industrial and consumer applications

Wireless sensor networks

IoT devices

Product Lifecycle

The LTC3421EUF is an active product from Linear Technology, with no indication of discontinuation. Replacement or upgrade options may be available from Linear Technology or other semiconductor manufacturers.

Several Key Reasons to Choose This Product

Wide input voltage range down to 0.5V

High efficiency up to 95%

Flexible output voltage configuration

High output current capability of 1A

Robust protection features for reliable operation

Small and compact 24-pin 4mm x 4mm QFN package

Long-term availability and support from Linear Technology