TPS7A49: TPS7A4901DGNT, TPS7A4901DGNT LDO

Behtan Umut Mercan

Prodigy 90 points

Part Number: TPS7A49
Other Parts Discussed in Thread: TPS7A30,

Hello,

I've designed a power supply circuits with TI LDOs.

Could you review my LDO schematic?

Schematic file is attached.

Thank you in advance.

Sincerely,

Behtan Umut Mercan

1641.power_schematic.pdf

over 2 years ago

0 Kyle Van Renterghem over 2 years ago

TI__Genius 13085 points

Hi,

Today is the Labor Day holiday in the US, we will follow up with you as quickly as possible after the holiday.

+1 Kyle Van Renterghem over 2 years ago

TI__Genius 13085 points

Hi Behtan,

Your schematic for TPS7A30 looks good, the only recommendation I have is that you can connect the NC to ground in order to improve the thermal dissipation of the package (but this is not a requirement just a suggestion).

For your TPS7A49 schematics, the input cap is too small. The datasheet requires 2.2uF or larger for Cin and your schematic only has 1uF. I'd recommend matching the output cap and use 10uF, but at a minimum they need to be increased to 2.2uF. Also the same recommendation about grounding the NC pins apply to these as well.

0 Behtan Umut Mercan over 2 years ago in reply to Kyle Van Renterghem

Prodigy 90 points

Hi Kyle,

Thank you for the feedbacks.

Sincerely,

Behtan Umut Mercan

Power management

Power management forum

TPS7A49: TPS7A4901DGNT, TPS7A4901DGNT LDO