LT3991IMSE-5#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LT3991IMSE-5#TRPBF

Manufacturer

analog-devices

Introduction

The LT3991IMSE-5#TRPBF is a high-efficiency, step-down DC-DC converter part of the voltage regulators category, specifically designed to manage power within electronic systems by converting a higher DC input voltage to a lower DC output voltage.

Product Features and Performance

Efficient step-down voltage conversion

Fixed 5V output with a 1.2A current capability

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

Adjustable switching frequency from 200kHz to 2MHz for design flexibility

Operates across a temperature range of -40°C to 125°C, ensuring reliability in varied environmental conditions

Non-synchronous rectification mode for simplified design

Product Advantages

High input voltage range allows use in applications with high supply voltages

The flexibility of switching frequency improves efficiency and reduces external component size

Fixed output voltage simplifies the design process

Capable of operating in tough environmental conditions

Key Technical Parameters

Voltage Input (Min): 4.3V

Voltage Input (Max): 55V

Voltage Output (Min/Fixed): 5V

Current Output: 1.2A

Frequency Switching: 200kHz ~ 2MHz

Operating Temperature: -40°C ~ 125°C (TJ)

Quality and Safety Features

Built to endure harsh operating conditions with a wide operating temperature range

Packaged in a robust 10-MSOP (exposed pad) for enhanced thermal dissipation

Compatibility

Surface Mount technology for compatibility with modern PCB designs

Application Areas

Ideal for powering devices in automotive, industrial, telecommunications, and computing sectors

Product Lifecycle

Currently marked as Active, not nearing discontinuation

Availability of replacements or upgrades should be monitored through analog-devices' product announcements

Several Key Reasons to Choose This Product

High voltage input capability makes it versatile for various power supply conditions

Fixed output simplifies design considerations, reducing time to market

Adjustable switching frequency allows optimization between efficiency and component size

Wide operating temperature range ensures reliability in extreme conditions

Robust packaging suitable for high-density PCB layouts