DC-DC BUCK step-down converter LM2596 LM2596S

LM2596S ADJ DC-DC Buck Step-down module adjustable Voltage regulator 3A
Specifications:
Input Voltage: 4V ~ 35V
Output Voltage: 1.23V ~ 30V
Output Current: 3A (สูงสุด)
Conversion efficiency: 92% (MAX)
Ripple Voltage: <30mV Output Ripple Frequency: 150KHz Operating Temperature: -45 Degrees Celsius ~ + 85 Degrees Celsius Dimensions: 43 x 21 x 14 mm.