Communication ASIC Core Power Supply Reference Design


Design files


The PMP9146 utilizes the TPS53515 DCAP3-mode SWIFT stepdown DC-DC converter to power high-current ASIC core rails at 1.2Vout/12A, with only 247mm2 of total power supply area and 27 total components.

  • 247mm2 total power supply area 
  • Only 3x100uF small output ceramic capacitors needed   for 8A load transient
  • Meets total +/-3%  DC and AC load regulation
  • 27 total power supply components (including IC)
  • DCAP3 control mode requires no loop compensation,  and can use ceramic output caps with no need for external ripple synthesizer circuit
  • Single GND Copper pad for easy PCB layout and heatsinking into internal PCB GND layers
Output voltage options PMP9146.1
Vin (Min) (V) 11
Vin (Max) (V) 15
Vout (Nom) (V) 1.2
Iout (Max) (A) 12
Output Power (W) 14.4
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Integrated Switch^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.

SLUUAU2.PDF (1513 K)

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

TIDC319.ZIP (2360 K)

Detailed schematic diagram for design layout and components


Detailed schematic diagram for design layout and components


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


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

TPS535151.5-V to 18-V, 12-A synchronous SWIFT™ buck converter

Data sheet: PDF | HTML

Technical documentation

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View all 2
Type Title Date
Technical article Power Tips: Hooray for integrated FETs! Jan. 07, 2014
Test report PMP9146 Test Results Oct. 23, 2013

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