Product details


Vin (Min) (V) 4.5 Vin (Max) (V) 36 Continuous current (Max) (A) 3.5 Current limit (A) User-selectable current limit Product type Charge port converter Operating temperature range (C) -40 to 125 Enable Active High Number of switches 1 TI functional safety category Functional Safety-Capable 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
* Data sheet 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
Functional safety information TPS2584x-Q1 Functional Safety FIT Rate and Failure Mode Distribution (Rev. A) Jul. 20, 2020
Application note PCB Layout and Parameters Recommendation for TPS2583X EMC Performance Mar. 25, 2020
Application note How to Pass MFi Overcurrent Protection Test With USB Charger and Switch Device Feb. 26, 2020
Application note How to Improve an Eye Diagram With the TPS25840-Q1 Device Using a Long USB Cable Jan. 10, 2020
Application note Ground Shift Phenomenon Recommendation of TPS2583x Dec. 02, 2019
Application note Loop Characteristic Evaluation and Optimization of TPS2583x Dec. 02, 2019

Design & development

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Hardware development

document-generic User guide
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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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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
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