Step Down Converter 3,2 tot 40V.

Specs:

Input voltage: 3.2 V - 40 V
Output voltage 1.25 V - 35V
Output current: 3 a (Max)
Conversion efficiency: 92% (the highest)
Output ripple: < 30 mv
Switching frequency: 65 KHZ
Working temperature: - 45  ~ + 85 
Size: 43 mm * 21 * 14 mm mm (length * width * height)