TPS51200: The difference between REFOUT and VO

Rannie Zhou

Expert 4120 points

Part Number: TPS51200

Tool/software:

Hi team,

May I ask what's the difference between REFOUT and VO?

If VO is used to power the VTT of DDR, what's the function of REFOUT?

BRs,

Rannie

4 months ago

0 James Steenbock 4 months ago

TI__Mastermind 21715 points

Hi Rannie,

REFOUT is a reference voltage for the DDR termination. VO follows REFOUT within a certain tolerance. REFOUT is not meant for large loads since it's just a reference voltage.

VO is capable of 3A sink/source current.

Regards,

James

Power management

Power management forum

TPS51200: The difference between REFOUT and VO