Labels Milestones
BackID 471, 4.437x4.456mm, 100 Ball, 10x10 Layout, 0.4mm Pitch, https://pdfserv.maximintegrated.com/package_dwgs/21-100168.PDF XBGA-121, 11x11 raster, 10x10mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32l031f6.pdf WLCSP-25.
- Size 10.2x8.45mm^2 drill 1.1mm pad.
- 0.0777924 -0.995038 vertex -1.87526.
- Panasonic C5, 6.3x4.9mm SMD capacitor, aluminum.
- Explanation about PWM smoothing; essentially a 4-stage RC.