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TPS2051C

ACTIVE

0.5A loading, 4.5-5.5V, 97mΩ USB power switch, active-high, output discharge, reverse blocking

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Data sheet

TPS2051C

ACTIVE
Data sheet Order now

Product details

Product type Fixed current limit, Power switch Vin (max) (V) 5.5 Vin (min) (V) 4.5 Rating Catalog Number of channels 1 Operating temperature range (°C) -40 to 125 Current limit accuracy at 1 A 0.2 Enable Active High
Product type Fixed current limit, Power switch Vin (max) (V) 5.5 Vin (min) (V) 4.5 Rating Catalog Number of channels 1 Operating temperature range (°C) -40 to 125 Current limit accuracy at 1 A 0.2 Enable Active High
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • Single Power Switch Family
  • Pin-for-Pin With Existing TI Switch Portfolio
  • Rated Currents of 0.5A, 1A, 1.5A, 2A
  • ±20% Accurate, Fixed, Constant Current Limit
  • Fast Overcurrent Response: 2µs
  • Deglitched Fault Reporting
  • Selected Parts With (TPS20xxC) and Without (TPS20xxC-2) Output Discharge
  • Reverse Current Blocking
  • Built-In Soft Start
  • Ambient Temperature Range: –40°C to 85°C
  • UL Listed and CB-File No. E169910
  • Single Power Switch Family
  • Pin-for-Pin With Existing TI Switch Portfolio
  • Rated Currents of 0.5A, 1A, 1.5A, 2A
  • ±20% Accurate, Fixed, Constant Current Limit
  • Fast Overcurrent Response: 2µs
  • Deglitched Fault Reporting
  • Selected Parts With (TPS20xxC) and Without (TPS20xxC-2) Output Discharge
  • Reverse Current Blocking
  • Built-In Soft Start
  • Ambient Temperature Range: –40°C to 85°C
  • UL Listed and CB-File No. E169910

The TPS20xxC and TPS20xxC-2 power-distribution switch family is intended for applications, such as USB, where heavy capacitive loads and short circuits are likely to be encountered. This family offers multiple devices with fixed current-limit thresholds for applications from 0.5A to 2A.

The TPS20xxC and TPS20xxC-2 family limits the output current to a safe level by operating in a constant-current mode when the output load exceeds the current limit threshold. This provides a predictable fault current under all conditions. The fast overload response time eases the burden on the main 5V supply to provide regulated power when the output is shorted. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.

The TPS20xxC and TPS20xxC-2 power-distribution switch family is intended for applications, such as USB, where heavy capacitive loads and short circuits are likely to be encountered. This family offers multiple devices with fixed current-limit thresholds for applications from 0.5A to 2A.

The TPS20xxC and TPS20xxC-2 family limits the output current to a safe level by operating in a constant-current mode when the output load exceeds the current limit threshold. This provides a predictable fault current under all conditions. The fast overload response time eases the burden on the main 5V supply to provide regulated power when the output is shorted. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS20xxC and TPS20xxC-2 Current Limited, Power-Distribution Switches datasheet (Rev. I) PDF | HTML May 27, 2026
* SMD TPS2051C SMD 905X0205100 Jun 21, 2016
Certificate UL 2367 Certificate of Compliance 20170810-E169910 Jun 19, 2024
Certificate TPS2051C UL Certificate of Compliance IEC 62368-1 Sep 7, 2020
Certificate TPS2065D UL Certificate of Compliance IEC 62368-1 Sep 7, 2020
Selection guide Power Management Guide 2018 (Rev. R) Jun 25, 2018
Technical article Converting from USB Type-A to USB Type-C™ brings greater energy efficiency PDF | HTML Apr 10, 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS2051CDBVEVM-636 — TPS2051CDBVEVM-636 Current-Limited USB Power Distribution Switch Evaluation Module

The TPS2051CDBVEVM-636 (EVM) provides an evaluation platform for the TPS20XXCDBV series of Single Channel, Current-Limited USB Power Distribution Switches. The EVM contains input and output connectors as well as control jumpers to ease evaluation of device features.
User guide: PDF
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Evaluation board

TUSB1210EVM — TUSB1210 DP/DM Line External Component Compensation, Vbus Overvoltage Protection Circuit EVM

The TUSB1210EVM implements a USB PHY with a ULPI interface. It can support Host, Device, OTG modes and also have output voltage support at the ULPI interface for +1.8V. This EVM also acts as a hardware reference design for any implementation of the TUSB1210.
User guide: PDF
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Simulation model

TPS2051C Unencrypted PSpice Transient Model Package (Rev. A)

SLVM323A.ZIP (30 KB) - PSpice model
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 5 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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