3.3V Input -0.5V/0.9A Output Synchronous Buck-Boost Reference Design
PMP9166
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Description & Features

Technical documentation

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Description

This reference design uses the TPS54218 in a synchronous buck-boost configuration to generate a negative 0.5V output from a 3.3V input. Switching at 1MHz, the total solution size is extremely compact. An external LM4040 reference provides a precision pull-up voltage and is necessary to regulate the output at a voltage level that is lower than the internal reference of the controller.

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


  




Parametrics
 PMP9166.1
(Output Voltage 1)
Vin (Min) (V)3
Vin (Max) (V)3.6
Vout (Nom) (V)-.5
Iout (Max) (A).9
Output Power (W).45
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck Boost- Inverting
Buck Boost- Synchronous

TI Devices (1)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS54218  2.95V to 6V Input, 2A Synchronous Step-Down SWIFT™ Converter  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS54218 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.

User guide (1)
Title Type Size (KB) Date
PDF 1166 19 Nov 2013
Design files (4)
Title Type Size (KB) Date
ZIP 158 19 Nov 2013
PDF 140 19 Nov 2013
PDF 78 19 Nov 2013
PDF 100 19 Nov 2013

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