DC / DC step-down converter module 1.25-35V / 10A | GM electronic COM
Mini Dc-dc 12-24v To 5v 3a Step Down Power Supply Module Voltage Buck Converter Adjustable 97.5% 1.8v 2.5v 3.3v 5v 9v 12v - Integrated Circuits - AliExpress
DC/DC step-down converter module 1-17V/1A, miniature | GM electronic COM
5A DC-DC Constant Current Voltage Regulator Buck Step Down Converter 5V 12V 24V | eBay
300W 20A DC DC Adjustable Step Down Buck Converter Module Constant Current Voltage Regulator Power Supply Transformer LED Driver|Transformers| - AliExpress
Step-Up/Step-Down Converter Features Ultra-Low Quiescent Current