LT3991IMSE-5#PBF - Analog Devices Inc.

Manufacturer Part Number

LT3991IMSE-5#PBF

Manufacturer

analog-devices

Introduction

The LT3991IMSE-5#PBF is a robust and efficient step-down (buck) voltage regulator, designed to convert higher input voltage into a lower, fixed output voltage with a high degree of accuracy and reliability.

Product Features and Performance

Efficient step-down voltage conversion

Wide input voltage range: 4.3V to 55V, accommodating a variety of power sources

Fixed 5V output, suitable for common electronics

Maximal output current of 1.2A, supporting a variety of loads

Adjustable switching frequency from 200kHz to 2MHz, allowing for optimization of efficiency and component size

Non-synchronous rectification for simplified design

Operates across a wide temperature range: -40°C to 125°C

Surface mountable for compact and efficient PCB design

Product Advantages

Wide input voltage range ensures compatibility with various power supplies

Flexible switching frequency allows for tailored performance

Fixed output facilitates straightforward application

High-temperature operation supports use in harsh environments

Key Technical Parameters

Voltage Input (Min): 4.3V

Voltage Input (Max): 55V

Voltage Output (Min/Fixed): 5V

Current Output: 1.2A

Frequency Switching: 200kHz to 2MHz

Operating Temperature: -40°C to 125°C

Quality and Safety Features

Built to meet stringent quality and safety standards

Robust against thermal and electrical stresses

Compatibility

Compatible with a wide range of input voltages

Can be used with various output loads requiring fixed 5V

Application Areas

Industrial controls

Automotive systems

Consumer electronics

Power supply modules

Product Lifecycle

Status: Active

Not nearing discontinuation, with replacements or upgrades not immediately necessary

Several Key Reasons to Choose This Product

Versatile input voltage range suitable for diverse applications

High efficiency and customizable performance through adjustable switching frequency

Reliable output with fixed 5V suitable for standard power needs

Resilient across a broad range of operating temperatures

Designed for compact integration into various electronic designs