Product details


Vin (Min) (V) 4.5 Vin (Max) (V) 36 Continuous current (Max) (A) 3.5 Current limit (A) User-selectable current limit Enable Active High Number of switches 1 Rating Automotive open-in-new Find other USB power switches & charging port controllers

Package | Pins | Size

VQFN (RHB) 32 25 mm² 5 x 5 open-in-new Find other USB power switches & charging port controllers


  • AEC-Q100 Qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • HBM ESD Classification level H2
    • CDM ESD Classification level C5
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Synchronous Buck DC/DC regulator
    • Input voltage range: 4.5 V to 36 V
    • Output current: 3.5 A
    • 5.1-V Output voltage with ±1% accuracy
    • Current mode control
    • Adjustable frequency: 300 kHz to 2.2 MHz
    • Frequency synchronization to external clock
    • FPWM with Spread-spectrum dithering
    • Internal compensation for ease of use
  • Compliant to USB-IF standards
    • CDP/SDP Mode per USB BC1.2
  • Optimized for USB power and communication
    • User-Programmable USB current limit
    • Cable Droop compensation up to 1.5 V
    • High bandwidth data switches on DP and DM
    • Client mode for system update
  • Integrated protection
    • VBUS Short-to-VBAT protection
    • DP_IN and DM_IN Short-to-VBAT (TPS25840-Q1 Only)
    • DP_IN and DM_IN Short-to-VBUS
    • DP_IN, DM_IN IEC 61000-4-2 Rated
      • ±8kV Contact and ±15kV air discharge
  • Fault flag reports
  • 32 Pin QFN package with Wettable Flank

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The TPS2584x-Q1 is a USB Type-A BC1.2 charging solution that includes a synchronous DC/DC converter. With cable droop compensation, the Vbus voltage remains constant regardless of load current, ensuring connected portable devices are charged at optimal current and voltage even under heavy loads.

The TPS2584x-Q1 includes high bandwidth analog switches for DP and DM pass-through.

The TPS25840-Q1 also integrates short to battery protection on VBUS, DM_IN and DP_IN pins. These pins can withstand voltage up to 18 V. While TPS25842-Q1 don’t support data line (Dx) short to VBAT protection.

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Technical documentation

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Type Title Date
* Datasheet TPS25840-Q1 USB Type-A and BC1.2 5-V 3.5-A Output, 36-V Input Synchronous Buck datasheet (Rev. B) Aug. 31, 2020
Application notes TPS2584x-Q1 Functional Safety FIT Rate and Failure Mode Distribution (Rev. A) Jul. 20, 2020
Application notes PCB Layout and Parameters Recommendation for TPS2583X EMC Performance Mar. 25, 2020
Application notes How to Pass MFi Overcurrent Protection Test With USB Charger and Switch Device Feb. 26, 2020
Application notes Ground Shift Phenomenon Recommendation of TPS2583x Dec. 02, 2019
Application notes Loop Characteristic Evaluation and Optimization of TPS2583x Dec. 02, 2019
Technical articles Automotive electronics design made easy Jul. 18, 2013
Technical articles John discusses benefits of LEDs in automobiles Jul. 16, 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
What you need to get started: 
Step 1: Order hardware 
Step 2: Download the EVM User guide 

Step 3: Download design guide lines and application notes


The TPS25840Q1EVM-079 are evaluation modules (EVM) for USB Type-A 5V 3.5A (...)
  • 6-V to 36-V (40-V Abs Max) input range current mode control DC-DC converter
  • ± 8% current sense accuracy (IOUT > 1.5 A) for precision cable droop compensation
  • USB battery charging specification Rev. 1.2 compliant
  • User programmable VBUS current limit

CAD/CAE symbols

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VQFN (RHB) 32 View options

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