LM1117I ESR vs Iout Characteristics

tateo yamashiro

Guru 10890 points

Other Parts Discussed in Thread: LM1117, TLV1117

My customer has questions about LM1117I.
Could you tell me about questions.

[Question]
Do you have a ESR vs Iout Characteristics?
It is like this.

device: TLV1117IDT-3.3
TLV1117IDT-5.0

Best regards,

tateo

over 10 years ago

0 Ron Michallick over 10 years ago

TI__Guru**** 164656 points

Tateo-san,

I noticed a mix in device names in your post. This may be the reason that the response time has been delayed.

LM1117 and DT suggests one device, the LM1117-N
TLV1117 suggests another device, the TLV1117.

Which device is the correct one?

0 tateo yamashiro over 10 years ago in reply to Ron Michallick

Guru 10890 points

Thank you for your reply.
I'm sorry I had mistake.
LM1117I is correct.

device: LM1117IDTX-3.3
LM1117IDTX-5.0

Do you have a ESR vs Iout Characteristics?

Best regards,

tateo

0 Tim Reyes over 10 years ago in reply to tateo yamashiro

TI__Expert 3920 points

Hi Tateo-san,

We don't have a graph across load, but the datasheet does recommend a range of output cap values and ESR to keep the LM1117IDTX stable across the entire load range of the device.

See Output Capacitor section. If you follow the guidelines properly in this section, you should be stable across the entire load range.

Tim

Power management

Power management forum

LM1117I ESR vs Iout Characteristics