|Item Weight||0.3 ounces|
|Package Dimensions||5 x 3 x 0.7 inches|
|Item model number||90393|
|Manufacturer Part Number||90393|
DROK LM2577 DC Boost Power Converter 3-34V to 4-35V 3A Adjustable Step Up Voltage Regulator Board
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- Enter your model number to make sure this fits.
- It is a high efficiency non-isolated boost module, the output Voltage can't be less than input Voltage
- Input Voltage: DC 3-34v; output Voltage: DC 4-35v(continuously adjustable)
- Input current: 3a(max); output current: 2 5a(max)
- Connection: welding, pin can be soldered directly to the PCB
- Multiple application such as DIY an output adjustable mobile power, boost charger, charge your electronic devices, etc
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Module Properties: non-isolated step-up module
Input voltage: DC 3-34V
Output voltage: DC 4-35V (adjustable)
Input Current: 3A (MAX)
Output current: 2.5A (MAX)
Output power: natural cooling 15W, heat sink 25W(MAX) (heat sink is not included)
Conversion efficiency: 90%
Operating Temperature: Industrial (-40°c to +85°c) (if ambient temperature exceeds 40°c, lower power use, or enhance heat dissipation)
Full load temperature rise: 45°c
No-load current: Typical 15mA (5V to 12V)
Load regulation: +/- 0.5%
Voltage regulation: +/- 0.5%
Dynamic response speed: 5% 200uS
Short circuit protection: None (Please Install fuses and protection circuits at Input port.)
Input Reverse Polarity Protection: None (Please Series diode at the input port.)
Installation: You can screw (diameter 3 mm), 2 fixing holes
Connection: Welding, pin can be directly soldered to a PCB
Conversion efficiency(for reference only):
In 3.7V Out 5V/1.0A 81%
In 5.0V Out 12V/0.5A 84%
In 7.4V Out 12V/0.5A 90%
In 7.4V Out 12V/1.0A 88%
In 12V Out 16V/1.0A 92%
In 12V Out 16V/2.0A 90%
In 12V Out 19V/1.0A 91%
In 12V Out 19V/1.5A 92%
In 12V Out 24V/0.5A 89%
In 12V Out 24V/1.0A 88%
1x DC Converter
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Top customer reviews
If you want to step up DC voltage to a higher level, this is great for that.
You've got one input port (power and ground) as well as one output port (power and ground). No soldering required. Just insert the power and ground wires on both ends and tighten down with a screwdriver. I love how easy it is to connect and disconnect things. Since you don't have to solder or unsolder anything, it's super easy to attach and later remove if you wanna connect something else.
The LED display can display both the input and the output voltage. Press the button to change. Press and hold the button for 3 sec to disable the display. Press it again to turn the display back on.
To change the voltage, use a flathead screwdriver to turn a little screw near the top. I was able to adjust the output between 5V and 40V.
The output voltages look correct when compared with two other multimeters.
I've been running 1A through it with no problems. I know it's rated for more but I haven't run more through it.
It comes in an antistatic bag and well packed with a lot of bubble wrap around it to ensure it arrives safe and sound.
No instructions come with it, but it's simple enough to figure it out on your own. :)
Very happy with my purchase! Now to get a housing for the unit. :)
Edit: The seller is very kind and will help you if you message them. After messaging with the seller about what happened, they suggested that I try a higher voltage (5V->12V) instead of (3.7V->12V) which makes sense because of the higher conversion efficiency. It still didn't work but they were very willing to resend/refund for the product. I changed my original 1/5star to 4/5star because the seller is nice and the product does indeed work(if not for just a brief time). Hopefully this doesn't happen again with the one they are re-sending.
Edit(again): the replacement works perfect. been using if for a couple months now without fail. I recommend that your voltage and current difference is not too distant on high current loads. also on a similar product by a different seller, the trim potentiometer seems to fail often but is easily replaceable if you have soldering skills.
Most recent customer reviews
input voltage is more than 3V".Read more