IN-IN + input Positive Input Negative!
                

Positive output OUT + OUT-output negative

Test comparison sample reference:
                Input 3V Output 12V 0.4A 4.8W
                Input 5V Output 12V 0.8A 9.6W
                Input 7.4V Output 12V 1.5A 18W
                Input 12V Output 15V 2A 30W
                Input 12V Output 16V 2A 32W
                Input 12V Output 18V 1.6A 28.8W
                Input 12V Output 19V 1.5A 28.5W
                Input 12V Output 24V 1 A 24W

Vin * Iin * Efficiency = Vout * Iout

Vin: Input Voltage
                Iin: input current
                Vout: Output Voltage
                Iout: output current

DSN6009   4A is a high-performance step-up switching current (BOOST) module. The   module uses the second generation of high-frequency switching technology   XL6009E1 core chip performance than the first generation technology   LM2577. XL6009 boost module at a lower cost, superior performance,   LM2577 module is about to be eliminated.
               
                ● Wide input voltage 3V ~ 32V, optimum operating voltage range is 5 ~ 32V;
                ● Wide Output voltage 5V ~ 35V;
                ● Built-4A efficient MOSFET switches enable efficiency up to 94%; (LM2577 current is 3A)
                ●   high switching frequency 400KHz, can use a small-capacity filter   capacitors that can achieve very good results, the ripple smaller and   smaller. (LM2577 frequency only 50KHz)

Model Specification
                DSN6009 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 ℃ ~ +85 ℃
                Dimensions
                43mm * 21mm * 14mm (L * W * H)