This is an LM2596 DC-DC buck converter step-down power module with high-precision potentiometer for adjusting output voltage, capable of driving a load up to 3A with high efficiency. When the output current required is greater than 2.5A(10W) an external heatsink is suggested.
Module Properties: non-isolated constant voltage module
Rectification: non-synchronous rectification
Input voltage: 4.5V-35V
Output Voltage(Less than input): 1.3V-30V
Output current: 3A maximum
Conversion efficiency: 92% (maximum)
Switching frequency: 150KHz
Output ripple: 50mV (maximum) 20M-bandwidth
Load regulation: ? 0.5%
Voltage regulation: ? 2.5%
Operating temperature: -40 ? to +85 ?
Size: 48 * 23 * 14 mm ( 1 7/8 x 29/32 x 9/16 in )