High Efficiency Step Down Converter for Storage SSD ASIC Core Rail Reference Design


Design files


The PMP7340 uses the TPS53319 synchronous-buck SWIFT converter with integrated power MOSFETs using PowerStack technology  to provide a  highly efficienct, power dense 12V input to 1V output 5.7A solution .   The TPS53319 is ideal for powering low-voltage, high-current  SSD Controller ASICs as well as DDR core memory rail.

  • Small external RC circuit that allows the D-CAP control mode to use low ESR 2x100uF and 1x22uF ceramic output capacitors. 
  • Fast 25us transient response (2.8A to 5.7A load-step)
  • Small 1uH inductor to save space
  • 500kHz switching frequency
  • 86% peak  efficiency from a 12V input to a 1V ouput.
  • No control loop compensation components.
Output voltage options PMP7340.1
Vin (Min) (V) 10.8
Vin (Max) (V) 13.2
Vout (Nom) (V) 1
Iout (Max) (A) 5.7
Output Power (W) 5.7
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.


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


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

TPS533191.5-V to 22-V, 14-A synchronous buck converter with eco-mode

Data sheet: PDF

Technical documentation

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Type Title Date
Test report PMP7340 Test Results Dec. 13, 2013

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