Powering VDD3P3_RTC with 3.3V 30mA always on LDO

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R-8020
Posts: 2
Joined: Sat Feb 04, 2023 4:25 am

Powering VDD3P3_RTC with 3.3V 30mA always on LDO

Postby R-8020 » Sun Mar 12, 2023 6:49 am

Is it possible to power RTC from a 3.3V 30mA always on output from LDO to keep RTC running while chip is off? I know the pin supplies VDD_SPI and i'm using that to power flash and psram running at 25mA and 40mA, respectively. Can I power flash and psram from external LDO and have VDD3P3_RTC dedicated to RTC?
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ESP_Sprite
Posts: 9769
Joined: Thu Nov 26, 2015 4:08 am

Re: Powering VDD3P3_RTC with 3.3V 30mA always on LDO

Postby ESP_Sprite » Mon Mar 13, 2023 12:25 am

No, sorry, with current chips that is not supported.
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