Mini 3.3V DC-DC power module

Mini 3.3V DC-DC power module, size `1.0×2.4`cm
![IMG_20240601_165245.jpg] If using the MP2359 chip, the maximum output current is 1.2A, and the maximum input voltage is 24V.

Refer to the [Datasheet](https://www.semiee.com/file/MPS/MPS-MP2359.pdf). The relationship between the output voltage, R1, and R2 is $$R2 =frac{R1}{frac{V_{OUT}}{0.81V}-1} $$, that is, $$V_{OUT}=0.81(frac{R1}{R2}+1)$$
Taking R1=51K and R2=16.5K (two 33K in parallel), the measured output is 3.24V.
Taking R1=47K and R2=15.6K (three 47K in parallel), the measured output is 3.17V. **

[



Updated June 7th]** The size has been further reduced:
the mini version measures 0.9 x 1.9 cm, while the previous larger version was 1.0 x 2.4 cm. A size comparison is shown in the image below (of course, the size could be designed to be even smaller, but that would make soldering inconvenient). My soldering skills are not great, so please be gentle with your criticism
! [IMG_20240607_194628.jpg]