LM27951SDX - Texas Instruments

Manufacturer Part Number

LM27951SDX

Manufacturer

Texas Instruments

Introduction

High-efficiency, low-noise LED driver for small-to-medium size LCD panel backlights

Integrated charge pump regulator provides up to 4 regulated outputs

Product Features and Performance

Supports up to 4 independent LED strings

Each output can deliver up to 30mA of LED current

Operates from a 2.8V to 5.5V supply voltage

Switching frequency of 750kHz

Output voltage range of 2.5V to 3.9V

Supports PWM dimming

Product Advantages

High efficiency charge pump design

Low external component count

Small package size

Wide operating temperature range (-40°C to 85°C)

Key Technical Parameters

Number of Outputs: 4

Topology: Switched Capacitor (Charge Pump)

Type: DC DC Regulator

Current Output / Channel: 30mA

Voltage Supply (Max): 5.5V

Voltage Output: 2.5V ~ 3.9V

Voltage Supply (Min): 2.8V

Dimming: PWM

Frequency: 750kHz

Quality and Safety Features

RoHS non-compliant

Compatibility

Suitable for small-to-medium size LCD panel backlights

Application Areas

Backlight applications

Product Lifecycle

Active product, no plans for discontinuation

Several Key Reasons to Choose This Product

High efficiency charge pump design for improved power efficiency

Supports up to 4 independent LED strings for flexible backlight configurations

Wide operating voltage and temperature range for versatile applications

Small package size and low external component count for compact designs