Power Inverters descriptions： We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. Adjustable Dc To Dc, Buck Boost Module 3a. Buck Module 3   Features: The Range of Input Voltage: 3.2 V to 40 V Dc (input Voltage Must Be Higher Than to the Output Voltage of 1.5 V Above. Can't Booster) The Range of Output Voltage: 1.25 V Dc to 35 V Voltage Adjustable, High Efficiency (92%) Largest Maximum Output Current is 3A. Specifications: Input Voltage :4V ~ 35V The Output Voltage : 1.23V ~ 30V Output Current :3A( Max) Conversion Efficiency:92%( MAX ) Output Ripple: <30mV Switching Frequency: 150KHz Working Temperature: -forty Five~ +85 Size :43mm * 21mm * 14mm(Long*Width*Hight) Boost Module 4A Features: XL6009 is a High-performance 400KHz 4A Switch Currency Step-up (BOOST) Module. This Module XL6009 is Coming with the 3rd Generation High-frequency Switch Technology As the Core Chip, The Performance is Much Higher Than LM2577 Wide Input Voltage: 3V~32V; Optimum Operating Voltage Range: 5~32V; Wide Output Voltage: 5V~40V With 4A High Efficiency MOSFET Switches, So the Efficiency Can Be Up to 94%, (LM2577current is 3A Only). With Ultra High Switch Frequency 400KHz , Even if Small Capacity Filtering Capacitors Can Achieve Very Good Results, Ripple is Smaller (Compare to LM2577 Frequency 50KHz). Specification: Model: XL6009 Boost Module Module Properties: Non-isolated Boost (BOOST) Rectification: Non-Synchronous Rectification Input Range: 3V ~ 32V Output Range: 5V ~ 35V Input Current: 4A (max), No-load 18mA (5V Input, 8V Output, No-load is Less Than 18mA. Higher the Voltage, the Greater the Load Current.) Conversion Efficiency: <94% (greater the Pressure, the Lower the Efficiency) Switching Frequency: 400KHz Output Ripple: 50mV (the Higher the Voltage, the Greater the Current, the Greater the Ripple) Load Regulation: +/-0.5% Voltage Regulation: +/-0.5% Operating Temperature: -40 Degree to +85 Degree  Body Size: 43 X 20 X 12mm/1.7" X 0.8" X 0.47"(L*W*T)  Input Way: IN+, IN-;  Output Way: OUT+, OUT- Buck Module 5A Specifications: Module Performance and Features: Module Nature: Non-isolated Buck Module (BUCK) Input Voltage: 4-38V (Please Try Not to Exceed 38V As Input) Output Voltage: 1.25-36V Continuously Adjustable Output Current: 0-5A, Recommended for Use Within 4.5A. Output Power: It is Recommended to Use Within 75W. If More Than 50W, Please Add Heat Sink. Working Temperature: -40~+85 Degrees Working Frequency: 180KHz SUNLEPHANT Conversion Efficiency: Up to 96% (efficiency Related to Input, Output Voltage, Current, Voltage Difference) Load Adjustment Rate: S(I) 0.8% Voltage Adjustment Rate: S(u) 0.8%  Power Indicator: Yes Short Circuit Protection: Yes (limited Current 8A)  temperature Protection: Yes (automatically Turn off the Output After over Temperature) Input Reverse Connection Protection: None, (If Necessary, Please Input a Large Current Diode in the Input String) Installation Method: 2 3mm Silk Wiring Method: Welding, V-IN is Input, V-OUT is Output . Products number : SOMONO156844