10V to 32Vin 25Vout at 1A Factory Automation I/O Module Reference Design
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Key Document


PMP20430 is a 4-switch buck-boost controller utilizing the LM5175 for industrial applications. This design has a minimum operating input voltage of 10V and a maximum input voltage of 32V, supports 25Vout @ 1A.  Switching frequency is set to 600kHz, during buck-boost mode, switching frequency drops in half, the buck and boost switches at 300kHz alternately with respected max and min duty cycle.

  • 10V to 32V in, output 25V @ 1A
  • Achieving efficiency of 90% across entire operation range, 96% peak efficiency
  • Compact size, slim form factor
  • Solution size:  24mm x 20mm
  • LM5175 4-switch buck-boost controller, wide Vin, high efficiency

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(Output Voltage 1)
Vin (Min) (V)10
Vin (Max) (V)32
Vout (Nom) (V)25
Iout (Max) (A)1
Output Power (W)25
Input TypeDC
TopologyBuck Boost- 4 Switch

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD19538Q3A  100-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 61 mOhm  MOSFETs  Sample & Buy Not Available
LM5175  42V Wide Vin 4-Switch Synchronous Buck-Boost Controller  Buck-boost & inverting regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD19538Q3A VSONP (DNH)| 8 Download
LM5175 Download Download
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User guide (1)
Title Type Size (KB) Date
PDF 2397 02 Nov 2016
Design files (6)
Title Type Size (KB) Date
ZIP 268 02 Nov 2016
ZIP 433 02 Nov 2016
PDF 965 02 Nov 2016
PDF 144 02 Nov 2016
PDF 52 02 Nov 2016
PDF 315 02 Nov 2016

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