LP3878-ADJ: Alternative LP3878 (EOL) -> LP3879 with change voltage devider

Florian Luetkebohle

Part Number: LP3878-ADJ
Other Parts Discussed in Thread: LP3878, LP3879

Hello TI Team,

is it possible to take an LP3879 LDO (for example 1.2V fix) instead of the LP3878 (Adj) and change the voltage devider to get an Output voltage of 1.5V or 2.5V?

BR Florian

6 months ago

0 Erin Thibeault 6 months ago

TI__Expert 6570 points

Hi Florian,

Are you looking to connect an external voltage divider to a fixed output LDO to get a different output or are you looking for an LDO that is already set to a 1.5V or 2.5V fixed output?

BR,

Erin

0 Florian Luetkebohle 6 months ago in reply to Erin Thibeault

Prodigy 40 points

Hi Erin,

both options could be help, as long we don't have to change the design.

Second sounds even better.

BR Florian

0 Erin Thibeault 6 months ago in reply to Florian Luetkebohle

TI__Expert 6570 points

Hi Florian,

Got it!

I recommend TLV76725DGNR for your 2.5V output and TLV76101DGNR for your 1.5V output. TLV76101DNGR is an adjustable output device with a pinout to support setting up a resistor divider.

BR,

Erin

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LP3878-ADJ: Alternative LP3878 (EOL) -> LP3879 with change voltage devider