TPS7H4001-SP: Inverting Buck Boost

David Herrera

Part Number: TPS7H4001-SP

Tool/software:

Hello,

I was wondering if the TPS7H4001-SP could be configured as an inverting buck-boost?

My top level specs

Input: 5VDC

Output: -0.4VDC with sinking capabilities of up to 200mA.

Thanks!

David

0 Daniel Hartung over 1 year ago

Hey David,

We currently advise against this on the TPS7H4001-SP
We have found that configuring it in this way produces results that are not desirable.

We have an -SEP device that we have tested for the condition:
https://www.ti.com/lit/an/snvaa76/snvaa76.pdf

We also are currently investigating using this part in such a configuration for full space grade:
https://www.ti.com/product/TPS7H4011-SP

Thanks,
Daniel

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