Question regarding LDO vs. DCDC

[LeonWu]

Hi team,

My customer is asking if they can remove L38, L39 and C225 when they change nRF52832-QFAA/ nRF52832-QFAA-G version from DCDC to LDO mode? Any suggestion?

Also, when in LDO mode, DCDC is disabled, right?

Thanks!

Leon

[run_ar]

Hi,

Please ask the customer to follow the reference schematic for the LDO: Schematic QFAA and QFAB QFN48 with internal LDO setup

This means that if they do not use DCDC, they can remove the inductors L38 and L39. But they still need to have the decoupling capacitor on dec4.

DCDC is only used if enabled. see DCDCEN.