This module converts the microcontroller's power supply into a higher, adjustable voltage.
Specifications:

1. input voltage: 3.5 to 35 VDC
2. output voltage: 5 to 55 VDC (adjustable)
3. max. input current: 3 A
4. continuous input current: 2 A
5. chip: LM2577
6. dimensions: 43 x 30 x 12 mm

lm2577_datasheet.pdf

vma402_scheme.pdf

wpm402a4v01.pdf

ce_rohs_open.pdf