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Hot Products

TPS2557DRBR

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  • MacroQuest Part#TPS2557DRBR
  • ManufacturerTexas Instruments
  • Standard Lead TimeNA
  • Part StatusNA
    • $0.69 - $0.86
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    Description FAQ Review
    Description

    TEXAS INSTRUMENTS TPS2557DRBR Precision Adjustable Current-Limited Power Distribution Switch

     

    TEXAS INSTRUMENTS TPS2557DRBR Product Overview

    The TPS2557DRBR is a precision power-distribution switch from Texas Instruments, designed for applications requiring precision current limiting or handling heavy capacitive loads and short circuits . It offers a programmable current-limit threshold from 500mA to 5A (typical) set via an external resistor, making it versatile for various load current requirements .

    The device operates over an input voltage range of 2.5V to 6.5V and integrates a 22mΩ high-side N-channel MOSFET to minimize conduction losses . It features controlled rise and fall times to reduce current surges during turn-on and turn-off . The FAULT logic output asserts low during overcurrent and overtemperature conditions . Operating temperature range is -40°C to +125°C, suitable for industrial and consumer applications. The device is offered in an 8-pin VSON (DRB) package measuring 3.00mm x 3.00mm, with 3,000 units per tape and reel . TPS2557DRBR is UL Listed (File No. E169910) and CB certified to IEC60950-1 .

     

    TEXAS INSTRUMENTS TPS2557DRBR Key Specifications

    Parameter

    Value

    Manufacturer

    Texas Instruments

    Product Type

    Power Distribution Switch

    Input Voltage (VIN)

    2.5V to 6.5V

    Programmable Current Limit

    500mA to 5A (Typical)

    Current Limit Accuracy (4.5A)

    ±6.5%

    High-Side MOSFET Resistance

    22mΩ

    Overcurrent Response Time

    3.5µs (Typical)

    Standby Supply Current

    2µA (Max)

    Fault Indication

    FAULT Output (Active Low)

    Features

    Built-in Soft Start, Slew Rate Controlled, System-Level ESD Capable

    Package

    8-pin VSON (DRB) (3.00mm x 3.00mm)

    Operating Temp (TA)

    -40°C to +125°C

    Mounting

    Surface Mount

    Packaging

    Tape & Reel (3000 units/reel)

    RoHS

    Compliant

     

    TEXAS INSTRUMENTS TPS2557DRBR Key Advantages

    The TPS2557DRBR integrates a 22mΩ high-side MOSFET to deliver up to 5A continuous output current with high efficiency . The adjustable current limit from 500mA to 5A provides design flexibility across multiple applications with different power requirements . The ±6.5% current-limit accuracy at 4.5A ensures precise current protection . The 3.5µs fast overcurrent response protects downstream circuits from short circuits .

    The built-in soft start and controlled slew rate minimize inrush current during startup, protecting sensitive loads and avoiding voltage dips on the input supply . The FAULT logic output provides real-time indication of overcurrent or overtemperature events, enabling system-level fault handling . The device features system-level ESD capability (15kV and 8kV) for robust operation in harsh environments . With 2µA maximum standby supply current, the device is suitable for battery-powered and low-standby-power applications .

     

    TEXAS INSTRUMENTS TPS2557DRBR Typical Applications

    USB ports and hubs requiring current limiting
    Digital televisions and set-top boxes
    VOIP phones and networking equipment
    Industrial and automotive power distribution
    Systems with heavy capacitive loads
    Battery charging and portable devices
    Hot-swap and load switching applications
    Point-of-load power management

     

    Why Choose the TEXAS INSTRUMENTS TPS2557DRBR?

    The TPS2557DRBR combines programmable current limit up to 5A, 22mΩ low on-resistance, and 3.5µs fast overcurrent response in a compact 3mm x 3mm VSON package from Texas Instruments. It delivers robust, reliable, and precise power distribution for applications where current limiting and short-circuit protection are critical. The flexible current-limit programming, UL/CB safety certifications, and wide operating temperature range make it a versatile solution for consumer, industrial, and automotive designs.

     

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