TPS61042DRBT - Texas Instruments

Manufacturer Part Number

TPS61042DRBT

Manufacturer

Texas Instruments

Introduction

The TPS61042DRBT is an efficient, small footprint, adjustable output step-up DC/DC converter specified to operate from a 1.8V to 6V supply, designed specifically for driving white LEDs with a constant current.

Product Features and Performance

Integrated 1MHz fixed-frequency oscillator to minimize the size of external components

Supports PWM dimming for controlling LED brightness

Internal 400mΩ, 60mA switch to reduce component count

High efficiency due to integrated Schottky diode

Stable with ceramic capacitors for improved performance

Provides constant current for uniform intensity of LEDs

Output voltage up to 27.5V for series LED applications

Product Advantages

Compact 8-SON package with exposed pad for improved thermal performance

Low operating voltage suitable for battery-powered applications

High switching frequency allows the use of small inductors

The PWM dimming capability offers versatile control over LED brightness

Capable of driving multiple LEDs in series

Key Technical Parameters

Voltage Supply (Min): 1.8V

Voltage Supply (Max): 6V

Voltage Output: 27.5V

Current Output / Channel: 60mA

Frequency: 1MHz

Operating Temperature: -40°C ~ 85°C (TA)

Quality and Safety Features

Over-temperature protection for device safety

Over-voltage protection guards against unexpected surges

Built-in soft start functionality reduces inrush current

Compatibility

Compatible with a wide range of LED types and configurations

Supports various battery chemistries due to its wide input voltage range

Application Areas

Ideal for portable devices LED backlighting

Suitable for battery-powered applications requiring efficient power conversion

Can be used in small form factor devices due to its compact size

Product Lifecycle

Active product with ongoing manufacturer support. No current indication of nearing discontinuation, ensuring availability for future designs and replacements.

Several Key Reasons to Choose This Product

High efficiency and low quiescent current maximize battery life

Compact size and high frequency operation allow for small solution size

Flexible design supports both PWM and analog dimming methods

Texas Instruments' reliable build quality and broad application support

Widely applicable for LED driving in portable and battery-operated devices