Manufacturer Part Number: TPS54331DR Manufacturer / Brand: TI
Part of Description: IC REG BUCK ADJ 3A 8SOIC Lead Free Status / RoHS Status: table_img Lead free / RoHS Compliant
Ship From: HK/Shen Zhen Shipment Way: DHL/Fedex/TNT/UPS

Product parameters

Mounting StyleSMD/SMT
Package / CaseLQFP-144
CoreARM Cortex M3
Program Memory Size512 kB
Data Bus Width32 bit
Minimum Operating Temperature– 40 C
Maximum Operating Temperature+ 85 C
Factory Pack Quantity60
SubcategoryMicrocontrollers – MCU
Product TypeTranslation – Voltage Levels
Unit Weight0.045518oz

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    The TPS54331DR is a highly efficient synchronous buck DC-DC converter from Texas Instruments, designed to provide robust power conversion in various applications. Key features include:

    • Input Voltage Range: Typically operates from 4.5V to 28V, accommodating a wide range of input voltages.
    • Output Voltage Range: Adjustable output voltage down to 0.8V, offering flexibility for different load requirements.
    • Output Current: Capable of delivering up to 3A of continuous output current, suitable for powering a variety of devices.
    • Efficiency: Utilizes synchronous rectification to achieve high efficiency and minimize power losses.
    • Protection Features: Includes over-current protection, thermal shutdown, and under-voltage lockout to ensure safe operation.
    • Control Features: Provides soft-start and adjustable switching frequency for optimized performance and ease of integration.
    • Package: Housed in an 8-pin SOIC package, facilitating compact and efficient PCB design.

    Typical Applications:

    • Power supplies for industrial equipment, telecommunications, and consumer electronics.
    • Embedded systems requiring efficient power management for microcontrollers, FPGAs, and other digital components.
    • Battery-powered devices where high efficiency and extended battery life are critical.
    • Telecommunications infrastructure, including networking equipment and base stations.
    • Automotive electronics requiring reliable voltage regulation and thermal management.


    • Compact and thermally efficient package design.
    • High efficiency leading to reduced power consumption and heat generation.
    • Adjustable output voltage for versatile application requirements.
    • Built-in protection mechanisms for enhanced reliability and safety in operation.