Small, Simple, and Efficient Voltage Inverter for Op Amp Biasing Reference Design
PMP9752
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Description & Features

Technical documentation

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Description

In this reference design, the TPS62120 provides a small, simple, and efficient voltage inverting circuit to be used for low power negative voltage rails, such as biasing an op amp.  This configuration has been tested with a full test report and operation explanation.

Features
  • Only 6 external components required for a complete solution
  • IC available in a 2 x 2 mm SON package for smallest size
  • IC available in 3 x 3 mm SOT package for easier assembly and extra features
  • Fully integrated, user selectable output discharge function
  • 80% efficiency over a wide load range
  • Up to 50 mA output current at 5V input

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

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Simulation Data

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS62120  15V, 75mA, 96% efficiency Step-Down Converter with DCS-Control  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS62122  15V, 75mA, 96% efficiency Step-Down Converter  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS62120 Download -
TPS62122 Download Download

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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Application notes (1)
Title Type Size (KB) Date
PDF 1122 01 Oct 2013
User guides (1)
Title Type Size (KB) Date
PDF 1109 02 May 2014
Design files (3)
Title Type Size (KB) Date
ZIP 183 14 Apr 2014
PDF 51 14 Apr 2014
PDF 33 14 Apr 2014

Support & training

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