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Your cart is empty.The volume is very small, the input voltage is 5V-30V, and it is best to use within 28V The maximum output current is 1.8A, preferably within 1.5A Please pay attention to the positive and negative poles when using this module, the positive and negative pole marks are on the back of the circuit board If you use high current for a long time, please do a good job of heat dissipation, the working temperature is -40℃-85℃ Package: 5pcs buck module
Matt B.
2025-09-03 13:11:18
Using this to run an esp32 and it works great from a 12v battery and more efficient than the built in converter.
Phil Tuttle
2025-08-04 15:05:49
This is exactly what I was looking for to drive a 5v circuit with a 9v. Soldering was a pain, but practice makes perfect. Highly recommend so far
That Guy
2025-07-31 12:42:59
I tested the MP2307DN for a few power levels for efficiency:Vin=5.1V -> Vout=3.28V, Iout=500mA-> 93.5% EfficientVin=12V -> Vout=3.28V, Iout=500mA-> 89.8% EfficientVin=20V -> Vout=3.28V, Iout=500mA-> 85.8% EfficientVin=20V -> Vout=3.28V, Iout=1A-> 85.8% EfficientRipple was 50-150mV with no additional filtering and not much beyond the noise floor of my power supply and DC electric load, so take the ripple for what it's worth.
Jim O'Quinn
2025-06-22 13:59:45
I blow up a couple of these for one reason or another on every project, but once soldered in place and I stop futzing with the input power or the output, they run without any issues. Have 7-8 running 24x7 in a couple different projects for a several of months and so far and they work as expected. Believe this is my 2nd or 3rd order and will order more in the future if I need them.
Dave
2025-04-15 11:45:59
I got the 5v model, and have tested a few, they output 4.72 volts under no load, this is just barely within range of what most USB devices will tolerate, and I'm sure it will drop under any load. They are nice and small but don't work very well. The resistors are too small to manually replace.
Seth
2025-03-09 16:24:45
I wanted to power an ESP32 devkit board (5v in) in a small WLED project I've been tinkering with. Uses a 12v power supply, and apparently I'm not smart enough to build my own voltage regulator circuit. This did the work for me.
Customer
2025-02-25 16:02:04
5v version give me only 4.81v
Strange World
2025-02-17 16:50:15
Compared these with multiple other units to test with a low current draw and this was this best I tested. With a 12.02V input, the unit output 5.174V, and at a current draw of 24.44 mA from the output side, the input side had a draw of 12.36 mA, which gives about an 83% efficiency. At 475 mA on the output side, the input was at 220 mA, which is approximately 91% efficient. With no load, the current drain was 806 µA (at 12.02V). The results of how well these inexpensive boards performed were a surprise, as were the poor results of more expensive buck converters, such as Adafruit's MPM3610 board.
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