TPS61240-Q1: Could I leave VOS pin unconnected

user6041007

Part Number: TPS61240-Q1
Other Parts Discussed in Thread: TPS61240, TPS62140

Hi team

I need to get a 3V to 12V programmable output voltage with 2A capability using TPS61240;

1, Why output voltage of TPS61240 is limited within 0.9V~6V?

2,I want to trim the FB pin to adjust the output voltage with following method, so I want to leave VOS unconnected, just use FB pin。Can I do this? If not, reason is?

many thanks!

over 4 years ago

0 Zack Liu over 4 years ago

TI__Mastermind 34201 points

Hi,

The maximum voltage rating for TPS61240 Vout, L pin is 7V, that's the reason you cannot get a 12V Vout. The method in the graph is nice to adjust the output voltage.

Can you tell me the input voltage range, load current, Vout range so that I can select an appropriate device for you.

0 user6041007 over 4 years ago in reply to Zack Liu

Prodigy 180 points

I am sorry for make the part number wrong; it is TPS62140, a buck IC.

Thanks very much.

0 Zack Liu over 4 years ago in reply to user6041007

TI__Mastermind 34201 points

Hi,

Please post a new thread on E2E, then TI's BUCK converter expert will reply you. I'll close this thread.

0 user6041007 over 4 years ago in reply to Zack Liu

Prodigy 180 points

ok, you can close this

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TPS61240-Q1: Could I leave VOS pin unconnected