ITEM NAME:DC-DC Adjustable LM2587 Boost Regulator Step-up Power Converter Power SupplyU7E5 DC-DC Adjustable LM2587 Boost Regulator Step-up Power Converter Power SupplyU7E5 Input voltage range: 3.5V-30V (must ensure that the output setting voltage is higher than the input voltage) Output voltage range: 4.0V-30V Input maximum current: 5A (According to Power conservation Calculate the nominal.1x DC-DC Converter Module. (ventilation and heat dissipation in good condition Board Color: Green. ).