This will be a macros lider with a nema17 stepper, tps63020, tmc2209.

Cortex v0 tiny AI wearable schematic: Raytac MDBT53V-1M BLE/nRF5340 module, USB-C LiPo charging, TPS63020 3.3V buck-boost, dual microphones, QSPI flash, tactile button, and WS2812B LED on a ~30mm round 4-layer PCB.

A buck boost converter that can be powered from a Li-ion battery and output 3.3V @500mA. Powered by the TPS63050YFFR and in the same package as a standard Adafruitbuck converter. Input Voltage range: 2.5V to 5.5V