TPS54560-Q1: Standby power consumption

Neal Zhu

Expert 2470 points

Part Number: TPS54560-Q1
Other Parts Discussed in Thread: TPS54560

Standby power consumption is now tested at 10mA. Is there any good suggestion to reduce power consumption?Thanks!

0 Andy Chen over 3 years ago

Hi Neal,

Do you mean the converter input current is 10mA at standby mode, or test input current at load=10mA?

The circuit design looks good, but the snubber R3 C26 maybe tuned to reduce the power loss, suggest to use R3=4.7 and C26=1nF as start point.

B R

Andy

0 Neal Zhu over 3 years ago in reply to Andy Chen

Expert 2470 points

converter input current is 10mA at standby mode，thanks！

0 Andy Chen over 3 years ago in reply to Neal Zhu

Hi Neal,

TPS54560 should not consume 10mA at standby mode, pls remove D3 to disconnect output load, change R3 to 10ohm, then test input current again.

B R

Andy

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