TPS659037: Does RTC support power supply with battery?

Tony Tang

Mastermind 25276 points

Part Number: TPS659037

There is a RTC on TPS6590376, can it power supply with external battery? and the power consumption data?

over 7 years ago

0 Raymundo Hernandez-Toscano over 7 years ago

TI__Intellectual 810 points

Hi Tony Tang,

Unfortunately LDOVRTC is tied to Vsys, were the VRTC regulator supplies RTC. In this case LDOVRTC comes up as soon as you apply Vsys and cannot be powered externally with a battery. In the TPS659037 datasheet you can refer to page 32 for more information.

-Ray

Power management

Power management forum

TPS659037: Does RTC support power supply with battery?