TPSM33625EVM: having problem getting 15V out of this board

Part Number: TPSM33625EVM

Hi,

I tried to modify this eval board to get 15V but i'm seeing about 12-13V. Should part should be capable of putting out 15v right ?

Input is 24V.

Thanks

0 Colin Chen over 1 year ago

Hello Sir,

What is your load current? and where is your test point?

We suggest testing Vout as below shown.

Thanks

Colin

0 VL over 1 year ago in reply to Colin Chen

Hi, It's going to be 2A but I haven't even got that far. I can't even output to be 15V when no load is connected.

According to the calculations, Feedback should be 140k/10k to output 15V right ? What am I missing ?

0 Colin Chen over 1 year ago in reply to VL

Hi Sir,

Did you use the test point for testing Vout?

Can you promise the welding of FB resistor is good?

Can you provide Vin, SW and Vout to us for further check?

B R

Colin

0 Colin Chen over 1 year ago in reply to Colin Chen

Hello Sir,

I see there is long time for no replying.

I am closing this ticket now and if you have question please request a new ticket.

Thanks

Colin

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