10 Pack LM2596 DC-DC Buck Converter Step Down Module Power Supply DIP Output 1.25V-30V 3A
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
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Purchase options and add-ons
Brand | BULVACK |
Color | 10 |
Input Voltage | 3.2 Volts |
Item Dimensions LxWxH | 1 x 1 x 1 inches |
Output Voltage | 30 Volts |
About this item
- Input voltage range: DC 3.2V to 35V (input voltage must be higher than the voltage output to 1.5V or more can not be boosted.)
- Output: 1.25V to 30V DC voltage is continuously adjustable, high efficiency and maximum output current of 3A.
- All solid capacitors using SANYO
- 36u thick circuit boards
- High-Q inductors with high power output LED indicator
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Product details
- Product Dimensions : 1 x 1 x 1 inches; 4.16 ounces
- Item model number : ZT001
- Date First Available : August 3, 2019
- Manufacturer : Zixtec
- ASIN : B07VVXF7YX
- Country of Origin : China
- Best Sellers Rank: #79,509 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
- #272 in Power Converters
- Customer Reviews:
Product Description
Electrical Parameters:Input: DC 3.2V to 35V (input voltage must be more than the output voltage can not be higher than boost 1.25v.)Output: 1.25V to 30V DC voltage is continuously adjustable, high efficiency and maximum output current of 3A.Features: All solid capacitors using SANYO, 36u thick circuit boards, high-Q inductors with high power output LED indicatorSize: 45 21 13mm / 1.69 0.83 0.51inch (including potentiometers)minimum with locating hole with LED indicator DC-DCInstructions:Access to power (3-35V), adjust the blue potentiometer knob (clockwise rotation generally boost, buck counterclockwise rotation) and with a multimeter to monitor the output voltage reaches the required voltage.Wiring:1. welding, welded directly to the power line input (output) port;2. solder pins, or pins can be inserted through the lead insertion use in tunnel plate; soldered directly to the PCB after another or add pins.Note: The input and output can not be reversed, reverse might burn chips;This is a step-down module, the input voltage is higher than the required output voltage;Output 2A or less long period of time without additional heat sink output current is greater than 2.5A (or output power greater than 10W) to work long hours please add heat sink.Package Included: 10pcs X LM2596S Module
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the value and ease of use of the power converter. For example, they mention it's simple and easy to use. That said, opinions are mixed on performance, output voltage, quality, and adjustability.
AI-generated from the text of customer reviews
Customers appreciate the value of the power converter. They say it works great for the money, is cheap, and is better than the switching voltage regulator component alone.
"...point across that range. - This board is cheaper than the switching voltage regulator component alone. - Can it really be an authentic..." Read more
"...Value for the money? Absolutely worth every penny, so why did I give it 4 stars?..." Read more
"Nice product, works well, great price. It's amazing that you can get 10x of these for less than $2 each...." Read more
"The price was right and these seem decently made. About half of them worked perfectly. With the others, I had trouble maintaining a stable current...." Read more
Customers find the power converter straight forward to use. They say the POT has good range and is easy to set using a voltmeter. They also say the converters save time on boards troubleshooting and that the soldering on wires is a breeze. Customers also say they are good reliable step down converters.
"...The POT has good range and is easy to set using a voltmeter...." Read more
"Good relaible step down converters, buying them all the time, saves a lot of time on a boards troubleshooting, just remove old dc-dc and install..." Read more
"Installed three. Buck converters are the easiest, and I wonder how other companies charge so much. All three worked as needed, adjustment was great." Read more
"Great converter. Does what it supposed to. Soldering on wires is a breeze...." Read more
Customers are mixed about the performance of the power converter. Some mention that it works great, while others say that some did not function and some couldn't be adjusted. Some say that the boards were at least functional, and that they work well at converting solar power. However, some customers report issues with the boards not functioning and some boards that couldn' t be adjustable. Overall, the opinions are mixed and the product is a bit disappointing.
"...Testing on the bench, no-load showed this device was capable of performing as advertised...." Read more
"...I have opened and tested 4 of them and have seen no issues at all. They work as intended...." Read more
"...many turns to get down to 1.5 to 5 V. At low power these will run discontinuous and generate a noisy output that causes the reading on my Fluke DVM..." Read more
"...They seem to work well, although are a bit finicky to adjust...." Read more
Customers are mixed about the output voltage of the power converter. Some mention that it puts out a good constant voltage, has a wide voltage range, and a useful power control feature. However, others say that it doesn't change and that the output is completely independent of input voltage.
"...These are not bidirectional; they will not boost voltage, only attenuate. Minimum differential is about minus 1.5volts between the input and outputs." Read more
"...The POT has good range and is easy to set using a voltmeter...." Read more
"...My expectations were not exceeded.Short version - input voltage was too high (totally my fault) and it failed...." Read more
"...Puts out a good constant voltage. They have gotten hot depending on the application, but never burned out...." Read more
Customers are mixed about the quality of the power converter. Some mention that the build quality seems fine, it's super stable, and is a nice product for work. However, others say that it has extremely poor build quality, bad quality control, and shoddy soldering.
"...Definitely a plus for the electrical hobbyist." Read more
"...I tested all 10 and they work, build quality is really good...." Read more
"...this is my fault, this is also a safety issue because these pieces literally blow apart (the capacitor even leaves a smell behind) if they are wired..." Read more
"The price was right and these seem decently made. About half of them worked perfectly. With the others, I had trouble maintaining a stable current...." Read more
Customers are mixed about the adjustability of the power converter. Some mention it's very sensitive and easy to adjust, with fine adjustments to dial in precise voltages. However, others say that some did not function and some couldn't be adjusted.
"...LM2496S - who knows, do we care? - Basic reference circuitry with an adjustable potentiometer - right for more, left for less. -- For..." Read more
"...They seem to work well, although are a bit finicky to adjust...." Read more
"...Very sensitive and easy to adjust...." Read more
"Easy to adjust in, wide voltage range, usable form factor. Noticeable whine after about 0.5A draw...." Read more
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- Drops 14-12v to 6.5v and holds the output at the set point across that range.
- This board is cheaper than the switching voltage regulator component alone.
- Can it really be an authentic LM2496S - who knows, do we care?
- Basic reference circuitry with an adjustable potentiometer - right for more, left for less.
-- For fixed applications (like mine) you could nuke that pot and slap in a fixed value resistor.
- For low power functionality - delete the LED and 102 (1,000 Ohm) resistor.
-- You'll lose the 'on' indicator LED and its companion resistor, but Ohms law doesn't lie.
-- Post operation, no load power use dropped from 0.010A to 0.007A - no puns, that's a 30% improvement.
- Dodging name brand over pricing.
- There are probably better ways to do this, don't be hatin'.
Using this device to step down 14-12v to 6.5v to power remote trail cameras with slightly more available 12v deep cycle batteries vs the 6v alternative. Testing on the bench, no-load showed this device was capable of performing as advertised. I don't have a scope so I can't comment on output noise, still chunked a MLCC (better capacitor) on flipside of the board across the existing output cap - it was 'used' so whatever, gave myself an 'E' for low-ESR. - I'll digress.
Generally speaking it makes sense from a user/support perspective to go with the manufacturer 'name brand' accessories for these remote units. But I couldn't resist the penny pinching backside of mine to not go DIY on this one - and you'll see why if you choose to hang in here for another paragraph (or so).
For a quantity of 10x at this time, these boards are $1.35/each - the LM2596S alone, is $2.50+ component from the component superstores mouser or digi-key. Most likely this is a ghost shift LM2596S, thank you (big semiconductor corp here) for doing business with China and/or letting the design slip, now I'm doing business with them. I only feel slightly guilty, but you're a bunch of penny pinching trolls too so don't even.
Now that the ethics, China, and money bag corporation rants are set aside my fiscal justification for going this route:
- OEM part (connectors, cable, regulator, and plug) cost $14.99+TAX
- This part, some janky-as copper clad aluminum cable, and the wrong sized plugs resulting in a direct connect plus battery spades, cost <$3.00/each.
Most likely the OEM did the same thing, but with some ill volume discounts, meaning they're taking your $12 after materials straight to the bank.
Keeping my $12, doing this thing - forgot to indicate - yes the battery side will be fused, I don't need a big-as forest fire on my conscience.
I have opened and tested 4 of them and have seen no issues at all. They work as intended. Other reviewers are correct to start turning the adjustment CCW for several turns and you will see the voltage drop.
These are not bidirectional; they will not boost voltage, only attenuate. Minimum differential is about minus 1.5volts between the input and outputs.
A second concern is the ability of the power source to stand up to the switching current. This device comes with a 100 uF 50V aluminum capacitor on the input which is rather small. When powering from a transformer, rectifier and filter the capacitor must be large enough to keep the 120 Hz ripple low. During most of the 8.3 msec cycle only the filter capacitor is providing current. I recommend the green high frequency low ESR kind for this switcher to draw from. For a 1.5V output I powered from a 7.5 V DC input from a puny 12 Vct 0.5 A transformer. I needed 10,000 uF to hold up the input voltage at 2 A load. As the input voltage drops a buck converter will draw more current, causing 120 Hz ripple to increase to the point the buck converter stops working. A 2200 uF capacitor could not deliver 2 A load.
Very sensitive and easy to adjust. Just keep in mind, if your output voltage is going to be real low, you will have to unscrew the little potentiometer probably More than you think.
When I tested the first one I though that is was broken until I kept unscrewing...
Top reviews from other countries
I had ONE out of TEN that wouldn't adjust as well as the other NINE.|
No big deal, the price of these is WELL worth the money.
These are really well made.
I use these to step down my M18 batteries to 12 volts ( I have a large Milwaukee collection, so always have spare batteries kicking around. ) to run some lights in an area that has no hydro.
They work like a charm!
Yes, I'd happily buy these again.