5V USB Output Converter Module
This is a DC to DC Buck converter module which provides 5V USB output from 7 ~ 24V input power. It can be used as a charger for mobile phones, tablets, MP3 players etc and for powering other USB powered devices. You may also power this module from battery. Its conversion efficiency is very high as it uses switched mode buck conversion. Make sure that the polarity of input supply is correct before providing power otherwise it may burn this module.
DC to DC Adjustable Buck Converter
Save energy by using this DC to DC Adjustable Step Down (buck) converter made with IC LM2596S. Conventional voltage regulators like 7805, 7812, LM317 etc drops extra power as heat. So the conversion efficiency is very low, but this module has high efficiency as it uses Switched Mode Conversion.
DC to DC Booster Module – XL6009
Xl6009 DC-DC step up module is a non isolated dc to dc step up converter having adjustable output voltage and high efficiency. The module uses second generation high frequency switching technology XL6009E1 core chip. The XL6009 module is very low cost and has superior performance.