RioRand 5 Pack Boost Converter Module: XL6009 DC 3.0-30 V to DC 5-35 V, Adjustable Output Voltage, Step up Circuit Board - 4A Review

works well, easy to use, probably factory or leftover. It was shipped directly from China. four of them were on the same board with breakage. Only + - input and + - output. four soldier glasses, two-sided. see four corners. a trimmer to adjust the tension [use a small flathead screwdriver]. consumes 17mA with no load. A standard 3-pin LM317t draws 2.5mA with no load. I believe it's safe for a load of 1A or less. The LM2596 chip itself (switching regulator) has an absolute maximum rating of 3A…

The only reason I didn't give it 5 stars was because I had to re-solder the potentiometer on one of the five items I received. This was a quick fix, but it took a lot of troubleshooting to figure it out. These regulators are good for the price and work very well even at very low voltage (5.0 to 8.4 volts). They are easily adjustable to hundredths of a volt at 8.4 volts and easily adjustable to tenths of a volt above 12 volts. All my voltage tests were done at 2.0 amps and below. The lowest…

Like some others I wanted to connect this to a Raspberry Pi. I put the Pi in a case with a small LCD that needed a 7-12V source. So take a 12V 1A wall wart and set one of them to 5V for the Pi, both work fine. And since it doesn't generate enough heat like a linear regulator, they work well in sealed cases. The PSU I am using erases. With a firm hand it can be set to 1/100 volt. Just solder some wires, two inputs connect to 12v power supply rail, two outputs connect to breadboard. And at $2…

The only criticism I have of them is that the power holes are an untypically 0.1" spacing, so you can't mount them straight to standard. breadboard or punch card. However, you can tilt the pins a bit and it works. Unfortunately as the holes are on the full outside edges you can't use terminal blocks, you will either have to solder the wires or the pins. I chose the pins to be slightly angled so I could attach them to the perforated board underneath and that way I could attach the terminal…

I rarely give a product 5 stars but this product is an exception. What struck me from the start was the professional packaging of each board. They were individually sealed in an anti-static bag. I received the electronics (LASER, 365nm UV LEDs, etc.) in either a regular plastic bag or just a mailing envelope. Then there's the price. Less than $2 each! I originally intended to build an adjustable regulator based on the LM2576-adj; However, this board is exactly what I need for the lab power…