Hi all,
I'm working on putting together a project using a Teensy LC project that is powered via an external 3.3v power supply as it is being paired with an ESP8266 which is beyond the capability of the Kinetis on-chip regulator to power.
I feel like this is a silly question, but I'm about to order PCB prototypes and would rather by safe than sorry... in this scenario, do I need to add additional decoupling capacitors the 3V3 pins, or should the decoupling already on the Teensy board still be sufficient? Asking since the ESP-WROOM-02 datasheet recommends adding 0.1uF and 10uF at the 3.3v input even though the board schematic on the datasheet shows on-board decoupling capacitors as well.
Thanks!
I'm working on putting together a project using a Teensy LC project that is powered via an external 3.3v power supply as it is being paired with an ESP8266 which is beyond the capability of the Kinetis on-chip regulator to power.
I feel like this is a silly question, but I'm about to order PCB prototypes and would rather by safe than sorry... in this scenario, do I need to add additional decoupling capacitors the 3V3 pins, or should the decoupling already on the Teensy board still be sufficient? Asking since the ESP-WROOM-02 datasheet recommends adding 0.1uF and 10uF at the 3.3v input even though the board schematic on the datasheet shows on-board decoupling capacitors as well.
Thanks!