Sign In SHOP BLOG LEARN FORUMS 0 Items VIDEOS POWER / CONVERTERS / STEP-DOWN / UBEC DC/DC STEP-DOWN (BUCK) CONVERTER - 5V @ 3A OUTPUT UBEC DC/DC StepDown (Buck) Converter - 5V @ 3A output PRODUCT ID: 1385 IN STOCK ADD TO CART 1 1-9 10-99 100+ ADD TO WISHLIST DESCRIPTION TECHNICAL DETAILS DESCRIPTION Your power supply problems just got SOLVED! This little circuit board may look tiny but inside is a high efficiency DC/DC step-down converter which can output up to 3 Amp at 5V without the need of any heat-sink or forced cooling. (It does get a bit toasty at 3A though) UBEC stands for "universal battery eliminator circuit" and this UBEC is designed to replace a 5V supply in RC planes and 'copters but its also great for any kind of microcontroller or electronics project that runs off of 5V. We tried a half dozen different 'BECs and found this one to be the best in terms of range and stability. You can check the technical tab for the analysis of input/output range and current draw. To use, connect 6V up to 16V (recommended) to the IN-side wires and 5V will be generated on the OUT-side wires. You'll get 5V (+-5%) regulated output from higher voltage input. 3A output current, 5A peak - if you're trying to draw 3A you'll need to give it a little more than 6V though, 7V works well. The UBEC has built in filter capacitors on the input and output, but its a switching supply so its a little noisy compared to a linear regulator. We pulled the heatshrink off of one and found an MP2307 you can check the datasheet for conversion efficiency and other specifications. UBEC DC/DC Step-Down (Buck) Converter - 5V @ 3A output (0:40) TECHNICAL DETAILS We pulled the heatshrink off of one and found an MP2307 you can check the datasheet for conversion efficiency and other specifications. The input capacitor might be rated for 16V max. Here are some numbers we found when attaching various loads to the UBEC: Iout Vin Iin Vout 0.5A 6V 0.47A 4.9V 0.5A 7V 0.39A 5.2V 0.5A 9V 0.35A 5.2V 0.5A 12V 0.28A 5.25V Iout Vin Iin Vout 1A 6V 0.9A 4.8V 1A 7V 0.79A 5.2V 1A 9V 0.67A 5.1V 1A 12V 0.52A 5.2V Iout Vin Iin Vout 2A 6V 1.85A 4.9V 2A 7V 1.67A 5.1V 2A 9V 1.28A 5.0V 2A 12V 0.97A 4.9V Iout Vin Iin Vout 3A 7V 2.6A 5.0V 3A 9V 1.88A 4.7V 3A 12V 1.43A 4.8V LEARN NeoPixel Painter Next-generation light painting with NeoPixels and Arduino DIY Camera Monitor DIY monitor for DSLR cameras or any HDMI device! Quadcopter Spray Can Mod for sanctioned UAV painting MAY WE ALSO SUGGEST... 5V 2A (2000mA) switching power supply - UL Listed Mini DC/DC Step-Down (Buck) Converter - 5V @ 1A 6 x AA battery holder with 5.5mm/2.1mm plug 8 x AA battery holder 8 x AA battery holder with 5.5mm/2.1mm Plug and Adjustable breadboard power supply kit Adafruit MiniBoost 5V @ 100mA Charge Pump - Mini DC/DC Step-Down (Buck) Converter - 3.3V @ 2.1mm DC Barrel Plug to Alligator Clips LM3671 3.3V Buck Converter Breakout - 3.3V DISTRIBUTORS CONTACT SUPPORT DISTRIBUTORS EDUCATORS JOBS FAQ SHIPPING & RETURNS TERMS OF SERVICE PRIVACY & LEGAL ABOUT US EXPAND TO SEE DISTRIBUTORS "A late game is only late until it ships. A bad game is bad until the end of time" - Shigeru Miyamoto ENGINEERED IN NYC Adafruit (R) 4.9