TPS61169: Asking for TPS61169 technical questions

SHH

Part Number: TPS61169

Hi Team,

My customer got a few questions about TPS61169. Could you help guide me to the answers?

1. The attached TSC file is TPS61169 tsc file downloaded from ti.com but with inductor changes to 10uH. The IL seems not stable. Is it the real device behavior or modeling issue?

2. Is there a minimum ESR spec for output capacitance for TPS61169 with 10uH inductor in order to meet loop stability?

Thanks,

SHH

over 3 years ago

0 Yuting Shao over 3 years ago

TI__Genius 13001 points

Hi,

Sorry, I can't see your attached file.

How about your design parameters? Such as VIN, No. of LED in series, output current?

According to our experience, 10uH is also OK and there is no special requirement for ESR of cap.

Robin

0 SHH over 3 years ago in reply to Yuting Shao

TI__Mastermind 30251 points

Hi Robin,

attached the file here.

TPS61169 L to 10uH.TSC

BR,

SHH

0 Yuting Shao over 3 years ago in reply to SHH

TI__Genius 13001 points

Hi,

I have already replied your email. Please let me know if you have any further questions.

Robin

Power management

Power management forum

TPS61169: Asking for TPS61169 technical questions