![]() ![]() Higher input voltage will increase the ripple.Ĭhanging the load from 0 to 2A will give a short voltage drop on the output.Īnd disconnecting the load again will give a spike.ĦV input is definitely too low for 5.0 volt output. There is some ripple on the output from the switching converter. The photos below are done 45 minutes into the above test. Input voltage sweep with constant current load The trimpot is not completely smooth, adjusting within 20mV was sometimes the best possible result.ĤV input is definitely too low for 3.3 volt output. The minimum output voltage I could select was 1.22 volt, maximum voltage above 30 volt. 3.3V and 5V has scope pictures of the output. 5V has 1A thermo photo, there others are at 2A. Note: Not all tests are done at all voltages. Generally there is no reason to check all the curves, just find the ones that apply to your application. As can be seen I got a lot of curves out of it. I am not that happy about the trimpot pins sticking through the circuit board, this makes mounting the converter on a heatsink more difficult.Īll test was done with these wires, they where plugged into the power supply and the load.įor the test I made some scripts that automatic changes input voltage and current and then let them run. I found this module on ebay at worldone2012 NOTE:This can't be used to step up Voltage.Output current:Rated current is 2A,maximum 3A (Additional heatsink is required).Rectification mode:Non-synchronous rectifier.Please allow 5% measuring deviation due to manual measurement.Performance test of Adjustable buck converter LM2596 Performance test and review of 20W DC-DC Step Down Voltage Regulator Rated current is 2A, maximum 3A(Additional heatsink is required) RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD General Specification Short circuit protection: current limiting, since the recovery.Rectification: non-synchronous rectification.Module Properties: non-isolated constant voltage module.Output current: Rated current is 2A, maximum 3A(Additional heatsink is required).Please refer RBD-1524 For Onboard SMD Status LED Features: This module does not come with Onboard SMD Status LED. RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD ![]() Product Images are shown for illustrative purposes only and may differ from the actual product. ![]() The LM2596 operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Since LM2596 converter is a switch-mode power supply, its efficiency is significantly higher in comparison with popular three-terminal linear regulators, especially with higher input voltages. This device is internally compensated to minimize the number of external components to simplify the power supply design. When the output current keeps greater than 2.5A (or output power greater than 10W), please add a heat sink to it. ![]() This is an LM2596 DC-DC buck converter step-down power module with the high-precision potentiometer, capable of driving a load up to 3A with high efficiency, which can work with UNO, other mainboards, and basic modules. The LM2596 series operates at a switching frequency of 150kHz, thus allowing smaller sized filter components than what would be required with lower frequency switching regulators. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version. DC-DC Buck Converter Step Down Module LM2596 Power Supply is a step-down(buck) switching regulator, capable of driving a 3-A load with excellent line and load regulation. ![]()
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