PCM5242: PCM5242's 1.8V LDO

Nicole Han

Intellectual 2230 points

Part Number: PCM5242

Hi, Team,

PCM5242 has an LDOO pin, 1.8V output, it can be either an output or input.

What's the benefit if we supply it with 1.8V externally? Only efficiency? I am not so sure. But it needs an extra LDO.

Thanks!

over 6 years ago

0 Mahmoud Harmouch over 6 years ago

TI__Mastermind 24740 points

The supply for internal LDO is DVDD. The power consumption is lower by using external supply voltage on LDO. The internal LDO is regulated at 1.8V. If the DVDD is 1.8V, the LDOO way not well regulated to 1.8V. In this case it is beneficial using en external supply for the LDO

0 Nicole Han over 6 years ago in reply to Mahmoud Harmouch

TI__Intellectual 2230 points

Thanks, Mahmoud

Audio

Audio forum

PCM5242: PCM5242's 1.8V LDO