Welcome to our shop! This buck converter is designed to convert input voltage into lower output voltage, and its input voltage range is 4.75-40V. It is made with high quality electronic components, ensuring stable performance. The converter has multiple protection functions including over-temperature shutdown, input under-voltage protection, BS-voltage protection, and short circuit protection. The reasonable component layout makes it easy to wire and use. It has a pin pitch of 2.54mm, making it breadboard friendly for MCU Development Board. Specifications: - Output voltage: 3V, 3.3V, 3.7V, 5V, 6V, 7.5V, 9V, 12V (Optional) - Working frequency: 550kHz - Conversion efficiency: 75-90% - Pin pitch: 2.54mm - Size: 18.3*10.2*6.7mm / 0.72*0.4*0.26in - Weight: 5g (approx.) Please note: - Input voltage should not exceed the maximum input range. - Output power should not exceed the maximum load for a long time. - Input power should be greater than the output power due to the module's power consumption. Package List: 1 * Voltage Converter 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.