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PGE
PGE
Associate III
August 20, 2020
Solved

STPMIC1 efficiency at low load

  • August 20, 2020
  • 2 replies
  • 1271 views

Dear all,

I am looking to use the STPMIC1 in one new STM32MP15x design which will spend most of this time in standby mode.

I am looking for STPMIC1 buck efficiency at light load (~1mA). In the datasheet there is numbers only for 150mA, 750mA and 1A. Is there any additonal numbers or graphics available somewhere ? I can see there is a special LP mode for light load but there is no indication about efficiency in LP mode.

Many thanks in advance for your help

This topic has been closed for replies.
Best answer by Olivier GALLIEN

Hi @PGE​ 

Did you notice Figure 3 to Figure 6 in DS ?

They contains efficiency for bucks in all range from 0.0001A to 1A in both HP and LP mode.

Isn't it what you are looking for ?

Olivier

2 replies

Olivier GALLIEN
Olivier GALLIENAnswer
Technical Moderator
August 24, 2020

Hi @PGE​ 

Did you notice Figure 3 to Figure 6 in DS ?

They contains efficiency for bucks in all range from 0.0001A to 1A in both HP and LP mode.

Isn't it what you are looking for ?

Olivier

Olivier GALLIEN In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.
PGE
PGEAuthor
Associate III
August 24, 2020

Yes thanks ! I don't know why I didn't notice them...

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