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TPS55165Q1-EVM: Start up input voltage

Part Number: TPS55165Q1-EVM

Hi,

In the EVM, when 24V is input voltage, output is normal and after start up, when input voltage is decreased to 2V, output is also normal.

However at start up with low voltage, output is 0.

Could you check this issue?

green is input, yellow is output.

When input reach 9V, output is 5V. At lower input, output is 0V.