Switched input buck converter reference design TIDA-070001 (ACTIVE)

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Key Document


This switched input buck converter design uses the TPS7H2201-SP and TPS50601A-SP, showing how input voltage redundancy increases design reliability. Two load switches allow primary and redundant voltage to be supplied to the point-of-load converter, creating robustness for critical power lines.

  • Over current limit
  • Over voltage limit
  • Input voltage redundancy
  • Soft start
  • Enable/disable functionality

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Schematic/Block Diagram

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Design Files

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(Output Voltage 1)
Vin (Min) (V)3
Vin (Max) (V)7
Vout (Nom) (V)2.5
Iout (Max) (A)6
Output Power (W)15
Input TypeDC
TopologyBuck- Synchronous

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS50601A-SP  Radiation Hardness Assured (RHA) 3.0-V to 7-V input, 6-A Synchronous Step Down Converter  Step-down (buck)  View Design Kits & Evaluation Modules
TPS7H2201-SP  Radiation hardness assured 1.5-V to 7-V, 6-A load switch  Power switches  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS50601A-SP Download -

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 3412 20 Dec 2018
Design files (6)
Title Type Size (KB) Date
ZIP 1272 20 Dec 2018
ZIP 1985 20 Dec 2018
ZIP 1714 20 Dec 2018
ZIP 559 20 Dec 2018
ZIP 99 20 Dec 2018
PDF 257 20 Dec 2018
Related Tools & Software

Design Kits & Evaluation Modules  ( 2 )

Name Part Number Tool Type
TPS50601A-SP Radiation Hardness Assured (RHA) Evaluation Module  TPS50601ASPEVM-S  Evaluation Modules & Boards 
TPS7H2201-SP Single Evaluation Module  TPS7H2201EVM-CVAL  Evaluation Modules & Boards 

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