NodeMCU-BU01Specification V 1.0
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Programme I:
Standard Micro USB interface power supply
Programme II:
Pin 3.3 V Power supply
(1)、 recommend 3.3 V voltage, peak over 500mA current
(2)、 recommend the use of LDO power supply; if used DC-DC the recommended ripple
is controlled within 30mV.
(3)、DC-DC power supply circuit is suggested to reserve the position of dynamic
response capacitance, which can optimize the output ripple when the load changes
greatly.
(4),3.3 V The proposed addition of ESD devices.