ALIENTEK DP100 DC Power Supply Features and Specifications
The ALIENTEK DP100 DC Power Supply gives you a continuously adjustable 0-30V 5A output, covering the voltage and current ranges most electronics workbenches demand on a daily basis. A high-precision digital display shows real-time voltage and current readings simultaneously, so you always know exactly what your circuit is receiving. The low ripple switching regulator topology keeps output noise below 50 mV, protecting microcontrollers, sensors, and RF modules from interference that can corrupt measurements or damage components. Compact portable lab dimensions mean the DP100 fits on crowded desks and travels easily to field sites or classrooms without adding bulk to your kit. Independent over-voltage and over-current protection circuits cut power automatically when limits are exceeded, giving you a reliable safety layer during long development sessions.

















S***a –
It’s a very good power supply with a palm-sized design and easy-to-understand operation method. This power supply is specifically for step-down use, and the USB PD input only outputs up to 20V. I’m using a PD3.1 compatible USB charger to extract 28V through a PD trigger device and supply it to this power supply. This way, it can be used up to about 27V, which I think is sufficient for most purposes.
j***r –
This is a nicely designed, tiny, lab power supply. One thing that could be improved is to use the latest usb pd standard 3.1. Currently it will not demand voltages higher than 20v even if the power source is able to supply. This is a pd 3.0 limitation, pd 3.1 would allow a 36v input which would allow the output to go up to the advertised 30v. There is a usb to barrel socket adapter in the box allowing a fixed voltage power brick to be used (if you can find one offering between 32 and 36v). However 19v or so is adequate for most of my needs. I particularly like the knurled thumb-wheel for setting the parameters.
AliExpress Shopper –
Great. I didn’t even expect it to be so small, it fits completely in my hand. It handles the load well, 30 minutes at 25 watts output – it’s a bit warm. Ripple at 4A – 7-9 mV RMS. A good choice for mobile use.
AliExpress Shopper –
perfect device for small projects up to 30V 5A – excellent.
D***r –
I can recommend this product and the shop. Shipping was much faster than expected.
I have ordered the version with the 32v supply, hoping it might fit into the case, but it doesn´t unfortunately. In the end i got a 140w pd3.1 supply and a usb-c to barrel cable with a 28v trigger. Like this i always have up to 27 v and everything fits inside the case.