Product details


Vin (Min) (V) 2.5 Vin (Max) (V) 6.5 Continuous current (Max) (A) 2.5 Current limit (A) 0.25 to 2.5 Number of switches 2 Enable Active High Rating Automotive open-in-new Find other USB power switches & charging port controllers

Package | Pins | Size

VSON (DRC) 10 9 mm² 3 x 3 open-in-new Find other USB power switches & charging port controllers


  • AEC-Q100 Qualified
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C5
  • Two separate current limiting channels
  • Meets USB Current-Limiting Requirements
  • Adjustable Current Limit, 250 mA–2.8 A (Typ.)
  • Accurate 2.1A Min / 2.5A Max Setting
  • Fast Short Circuit Response − 3.5-μs (typ)
  • Two 44−mΩ High-Side MOSFETs
  • Operating Range: 2.5 V to 6.5 V
  • 2−μA Maximum Standby Supply Current
  • Built-in Soft-Start
  • 15 kV / 8 kV System-Level ESD Capable
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The TPS2561A-Q1 is dual-channel power-distribution switch intended for automotive applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 250 mA and 2.8 A (typ) per channel via an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turn on/off.

Each channel of the TPS2561A-Q1 devices limits the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULTx logic output for each channel independently asserts low during overcurrent and over temperature conditions.

Use with the TPS2511-Q or TPS2513A-Q1 for a low loss, automotive qualified, USB Charging Port Solution capable of charging all of today's popular phones and tablets.

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Technical documentation

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Type Title Date
* Data sheet TPS2561A-Q1 Dual Channel Precision Automotive Adjustable Current-Limited Power Switches datasheet (Rev. A) Jun. 03, 2014
Certificate US-37138-UL Certificate of Compliance IEC 62368-1 Mar. 12, 2021
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018

Design & development

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Hardware development

document-generic User guide

The TPS2560EVM-424 and TPS2561EVM-424 are evaluation modules (EVM) for Texas Instruments power-distribution switches with adjustable current-limit. These EVMs operate over a 2.5-V to 6.5-V range. An on-board jumper sets the output current-limit to either 0.5 A or 1 A. The board is designed for the (...)

Design tools & simulation

SLVM475A.ZIP (33 KB) - PSpice Model

Reference designs

CISPR 25 Class 5 Rated Dual Automotive USB Charger Reference Design With Full Front End Protection
TIDA-01388 — TIDA-01388 is a 21 W dual automotive USB charger solution featuring complete front end protection with small size. The system can clamp fast high-voltage electrical transients and maintain operation through these events. It can also properly respond to a reverse battery polarity event and shut down (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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Ordering & quality

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Support & training

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