LT3491EDC#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LT3491EDC#TRPBF

Manufacturer

Analog Devices

Introduction

The LT3491EDC#TRPBF is a compact, high-efficiency, Power Management Integrated Circuit (PMIC) designed for LED driving applications.

Product Features and Performance

Integrated step-up (boost) regulator

Internal power switch

Single output

High switching frequency of 2.3MHz allowing small external components

PWM dimming capability for adjustable brightness control

Stable operation with input voltages from 2.5V to 12V

Delivers an output voltage up to 27V

Current output capacity of 260mA (Switch)

Designed for surface mount technology

Product Advantages

High integration reduces external component count

High-frequency operation minimizes external inductor and capacitor size

Internal switch simplifies circuit design

PWM dimming provides power-efficient brightness control

Suitable for battery-powered applications due to low minimum supply voltage

Capable of driving LEDs with high forward voltages

Key Technical Parameters

Voltage Supply (Min): 2.5V

Voltage Supply (Max): 12V

Voltage Output: 27V

Current Output / Channel: 260mA (Switch)

Frequency: 2.3MHz

Topology: Step-Up (Boost)

Number of Outputs: 1

Quality and Safety Features

Built-in over-temperature protection

Over-current protection for improved safety

Compatibility

Compatible with various LED configurations requiring up to 27V

PWM input compatible with standard dimming signals

Application Areas

LED backlighting for displays and monitors

Portable lighting

General purpose LED lighting

Product Lifecycle

Product Status: Active

Not nearing discontinuation

Availability of replacements or upgrades not specified

Several Key Reasons to Choose This Product

High efficiency for extended battery life in portable applications

High-frequency operation allows the use of small, low-cost inductors and capacitors

The integrated switch reduces complexity and component count

The compact 6-WFDFN package saves board space

Reliable operation in a wide temperature range from -40°C to 85°C

Dimmable with PWM input for versatile control in lighting applications

Active product support and availability from Analog Devices