3.3V Input -0.5V/0.9A Output Synchronous Buck-Boost Reference Design

(ACTIVE) PMP9166

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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.

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




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)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 1166 19 Nov 2013 9
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 158 19 Nov 2013 8
PDF 140 19 Nov 2013 24
PDF 78 19 Nov 2013 15
PDF 100 19 Nov 2013 10


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