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WEBENCH® Tools/TPS54332: TPS54332

Part Number: TPS54332

Tool/software: WEBENCH® Design Tools

Dear

This is Max.koh in woosung system

we are using the Tps54332DDAR. But we have some problem.

We used inductor with 33uH in YCDM3015CT series.

There are OK in room temperature and high temperature. but It has the some problem with output voltage  low temperature [-20'C]

the output voltage has a wave from 4.2V to 2.6V.

Please recommend the inductor value and vender.

Why dies this happen?

Thanks,

Max.

test condition

 1. input voltage 6V

2. output Voltage 4.2

3. current : 100mA ~ 150mA

4. inductor : YCDM3015CT series ( Use the 33uH)