The Nintendo Switch Pro Controller is controller for the Nintendo Switch like the Joy-Con but has a more traditional design of a controller.

Hardware

ICs on the Mainboard

Label Name Datasheet
32LP052
KDA
GH21W VG
CHN 644
STM32L052x6/8 LQFP48 https://www.st.com/resource/en/datasheet/stm32l052c6.pdf
CKP
TI 69
AQNF
BQ2407x https://www.ti.com/lit/ds/symlink/bq24072.pdf
P41LTDA
003 V0 A
TW 6 37