#211 Buck Converter Modules
Reviewing a range of low-cost buck converter switch-mode power supplies that can generally supply up to 30V.
Notes
There are many super-cheap buck converter modules available. I have collated the notes on many devices I’ve tried here. See the individual project pages for each device for full details.
Module 1 - LM2596S 2.6-30V Buck Converter Module
See LEAP#821 LM2596S 2.6-30V Buck Converter Module.
A common LM2596S-based buck converter module with adjustable-voltage control, operating at around 50kHz switching frequency.
Module 2 - LM2596S 1.23V-30V Buck Converter Module
See LEAP#822 LM2596S 1.23V-30V Buck Converter Module.
Another LM2596S-based buck converter with adjustable-voltage control and slightly different components, operating at around 50kHz switching frequency.
Module 3 - XL4015 1.25V-36V Buck Converter Module
See LEAP#823 XL4015 1.25V-36V Buck Converter Module with Voltage Display.
An XL4015-based buck converter with adjustable-voltage control and selectable input/output voltage display.
Module 4 - MP2307DN 1.0V-17V Buck Converter Module
See LEAP#824 MP2307DN 1.0V-17V Mini Buck Module.
A common MP2307DN-based buck converter module that is extremely small and convenient for relatively low-power requirements under 17V.
Module 5 - XL4015 0.8-30V Buck Converter Module
See LEAP#825 XL4015 0.8-30V CC/CV Buck Converter with Dual Display.
Features constant-current, constant-voltage control, LED display of both current and voltage, and a serial interface for remotely querying current and voltage.
