TIC12400-Q1: About Analog LDO and Digital LDO

Leo Ma

Expert 3716 points

Part Number: TIC12400-Q1

Tool/software:

Hi Expert,

Have a good day!

I want to know what is the difference between Analog LDO and Digital LDO?

Does they power for different part of IC? Such as Digital LDO power for SPI part.

If so, why need 2 different LDO? For different accuracy?

Thanks！

Best Wishes,

Leo Ma

6 months ago

+1 Jonathan Nerger 6 months ago

TI__Mastermind 33440 points

Hi Leo,

There are separate Analog and Digital LDOs because the analog and digital portions of the chip operate at different voltage levels and are isolated for various EMC and noise related reasons.

Regards,

Jonathan

0 Leo Ma 6 months ago in reply to Jonathan Nerger

TI__Expert 3716 points

Get it. Thanks

0 Jonathan Nerger 6 months ago in reply to Leo Ma

TI__Mastermind 33440 points

You're welcome.

Regards,

Jonathan

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TIC12400-Q1: About Analog LDO and Digital LDO