DC To DC Converter

DC-DC mini Step down Converter Module 
Good discount if buying more than one 

Model aircraft and many other uses  power step-down DC DC mini-360 power supply module adjustable
Non-isolated step-down 
Synchronous rectification 
Size: approx. 17 x 11 x 3.8mm 
Input voltage: 4.75V-23V 
Output voltage: 1.0V-17V 
Current output: peak 3A, 1.8A continuous
Transfer efficiency: 96% ( highest) 
Switching frequency: 340 KHz 
Output ripple: 30mV(no-load) 
Load regulation: ±0.5% 
Voltage regulation: ±2.5% 
Operating temperature: -40~+85