ITEM NAME:LM2596S DC-DC Adjustable Buck Converter Step Down Power Supply Module 1 QWD HZY Descriptio n Description: Input Voltage Range: Dc 3.2v To 40V (The Input Voltage Must Be More Than 1.5v Higher Than The Output Voltage. No Boost) Output Voltage Range: Continuously Adjustable Dc Voltage From 1.25v To 35V, With High Efficiency (Maximum 92%) And Maximum Output Current Of 3A. The Load Adjustment Rate Of 12V Input And 5V Output Current 1A Is Less Than 1% Specifications: Model/Name: LM2596S Dc-Dc Buck Module Input Voltage: 3.2v ~40V Output Voltage: 1.25V~35V Output Current: 3A (Maximum) Conversion Efficiency: 92% (Highest) Output Ripple: