Product details


Vin (Min) (V) 4.5 Vin (Max) (V) 5.5 Continuous current (Max) (A) 2.5 Current limit (A) 0.25 to 2.7 Number of switches 1 Enable Active High Rating Catalog open-in-new Find other USB power switches & charging port controllers

Package | Pins | Size

WQFN (RTE) 16 9 mm² 3 x 3 open-in-new Find other USB power switches & charging port controllers


  • D+/D– CDP/DCP Modes per USB Battery Charging Specification 1.2
  • D+/D– Shorted Mode per Chinese Telecommunication Industry Standard YD/T 1591-2009
  • Supports non-BC1.2 Charging Modes by Automatic Selection
    • D+/D– Divider Modes 2 V / 2.7 V and 2.7 V / 2 V
  • Supports Sleep-Mode Charging and Mouse/Keyboard (Low-Speed Only) Wake Up
  • Load Detection for Both Power Supply Control in S4/S5 Charging and Port Power Management in all Charge Modes
  • Compatible with USB 2.0 and 3.0 Power Switch Requirements
  • Integrated 73-mΩ (Typical) High-Side MOSFET
  • Adjustable Current-Limit up to 3 A (Typical)
  • Operating Range: 4.5 V to 5.5 V
  • Drop-In Compatible with TPS2540/40A
  • Max Device Current:
    • 2 µA When Device Disabled
    • 260 µA When Device Enabled
  • Available in 16-Pin QFN (3 × 3) Package
  • UL Listed and CB File No. E169910
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The TPS2543 is a USB charging port controller and power switch with an integrated USB 2.0 high-speed data line (D+/D–) switch. TPS2543 provides the electrical signatures on D+/D– lines to support charging schemes listed under device feature section. TI tests charging of popular mobile phones, tablets and media devices with the TPS2543 to ensure compatibility with both BC1.2 compliant and non-BC1.2 compliant devices.

In addition to charging popular devices, the TPS2543 also supports two distinct power management features, namely, power wake and port power management (PPM) via the STATUS pin. Power wake allows for power supply control in S4/S5 charging and PPM the ability to manage port power in a multi-port applications. Additionally, system wake up (from S3) with a mouse/keyboard (low speed only) is also supported in the TPS2543.

The TPS2543 73-mΩ power-distribution switch is intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. Two programmable current thresholds provide flexibility for setting current limits and load detect thresholds.

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Technical documentation

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Type Title Date
* Data sheet USB Charging Port Controller and Power Switch with Load Detection datasheet (Rev. A) Oct. 26, 2016
Selection guide USB Type-A Power Switch and Charging Controller Selector Guide (Rev. F) May 24, 2018
Application note Effective System ESD Protection for TPS254x USB Charging Port Controllers Jun. 03, 2016
User guide TPS254xEVM-064 User Guide (Rev. A) Feb. 04, 2013

Design & development

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

Hardware development

document-generic User guide
The Texas Instruments TPS2543EVM-064 evaluation module (EVM) helps designers evaluate the performance of the TPS2543 USB Charging Port Power Switch and Controller. The EVM contains input and output connectors. Jumper controls are also provided to ease evaluation of device features.
  • Adjustable, current-limited power distribution switches with charging detection
  • Screw jack type input and output connectors
  • Jumper for device enable input

Design tools & simulation

SLVM547.ZIP (44 KB) - PSpice Model

Reference designs

Automotive USB Charger
PMP6934 — This is a synchronous buck running off automotive 12 volts which supplies 5 volts at 5 amps. The 5 volts is then passed through two TPS2543 charging port power switches.
Design files

CAD/CAE symbols

Package Pins Download
WQFN (RTE) 16 View options

Ordering & quality

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  • Ongoing reliability monitoring

Support & training

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