DC Buck Converter DC-DC Step Down Voltage 5V-36V to 1.2V-32V Buck Converter Reducer Power Supply Module Supply Module with LED Display USB Output & Mode - Walmart.com
Buck converter - Wikipedia
Tiny DC/DC Buck Controller Provides High Efficiency and Low Ripple | Analog Devices
5 pcs RC Airplane Module Mini 360 DC DC Buck Converter Step Down Module 4.75V 23V to 1V 17V 17x11x3.8mm Mini360 New LM2596|module power supply|module computermodule bluetooth - AliExpress
DC-DC Converter with LED Volt Meter Buck LM2596s 1.5-37V | MPJA.COM