17.5W Dual USB Car Charger Reference Design


Design files


PMP9367 is a dual USB car charger reference design intended for use in aftermarket automotive application. This design utilizes the LM3150, TPS2561 Dual Channel Power Switch and a TPS2513 USB Dedicated Charging Port Controller. This design operates from 6 to 40V in. The outputs is set to 5V, channel one has a 1A current limit and channel two has a 2.1A current limit. This design has a switching frequency of 300 kHz.

  • Small overall solution size.
  • +5V/3.5A with LM3150 capable of 6V to 40V input
  • Synchronous Controller provides 95% peak efficiency
  • Constant On Time Control, No Loop Compensation Required, and Fast Transient Response
  • Emulated Ripple Mode (ERM) control allows for the use of low ESR output capacitors.
Output voltage options PMP9367.1
Vin (Min) (V) 6
Vin (Max) (V) 40
Vout (Nom) (V) 5
Iout (Max) (A) 3.5
Output Power (W) 17.5
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Synchronous
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU944.PDF (1647 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers

TIDREE2.ZIP (1144 K)

Files used for 3D models or 2D drawings of IC components

TIDCA68.ZIP (234 K)

Design file that contains information on physical board layer of design PCB


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck controllers (external switch)

LM31506V to 42V Synchronous Step-Down Controller with Adjustable Output Voltage

Data sheet: PDF | HTML
USB power switches & charging port controllers

TPS2513Dual USB Dedicated Charging Port Controllers

Data sheet: PDF | HTML
USB power switches & charging port controllers

TPS25612-ch, 0.25-2.8A adjustable ILIMIT, 2.5-6.5V, 44mΩ USB power switch, active-high

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP9367 Test Results Apr. 15, 2015

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