TLV755P: pin 4 NC p2p question

Fred Cheng

Expert 4910 points

Part Number: TLV755P

Hi team,

customer want qualify our TLV75509 as 2sd,

1. can we keep these FB resistor since we're NC , no affect right?

2.and what's the meaning of that PR5154 ? is that necessary?

over 2 years ago

Fred Cheng over 2 years ago

TI__Expert 4910 points

.Hi team,

any update?

Edgar Acosta1 over 2 years ago in reply to Fred Cheng

TI__Genius 12345 points

Hi Fred,

I apologize for the delayed response.

There is no internal connection for Pin 4. However, be aware that leaving the resistors will load the LDO to ~57uA.

This device has an internal Pull-Down resistor for the EN pin, therefore no need for PR5154. Often times, there is no internal pulldown, and an external one is used.

Best,

Edgar Acosta

Fred Cheng over 2 years ago in reply to Edgar Acosta1

TI__Expert 4910 points

I see ,

but it won't be a big deal if we keep the PR5154 right?

since I don't know if RT9078 has this internal pull-down function

Edgar Acosta1 over 2 years ago in reply to Fred Cheng

TI__Genius 12345 points

Hi Fred,

There is no issue keeping PR5154, the internal pull-down resistor is 120-Ω from EN to GND.

Best,

Edgar Acosta

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TLV755P: pin 4 NC p2p question