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BULVACK

10 Pack LM2596 DC-DC Buck Converter Step Down Module Power Supply DIP Output 1.25V-30V 3A

  • Based on 933 reviews
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Arrives Sunday, Feb 15
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Features

  • 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

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

Brand: BULVACK


Power Source: Corded Electric


Mounting Type: PCB Mount


Current Rating: 3 Amps


Item Weight: 4.6 Ounces


UPC: 745672639546


Manufacturer: Zixtec


Product Dimensions: 1 x 1 x 1 inches


Item Weight: 4.6 ounces


Item model number: ZT001


Date First Available: August 3, 2019


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If you place your order now, the estimated arrival date for this product is: Sunday, Feb 15

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Top Amazon Reviews

    • Great voltage regulator
Item Package Quantity: 1
Works great! I use them to reduce 15V voltage to power LED post lights, which require 1.2V. The output resistor needs to be adjusted to reduce voltage because by default the output voltage it too high.
Reviewed in the United States on November 16, 2025 by Yuri
    • Low Power Considerations
Item Package Quantity: 1
Summary: - 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. ... show more
Reviewed in the United States on September 18, 2020 by P!NG
    • Works well
Item Package Quantity: 1
Used these to lower voltage in order to install led lights in my HO scale passenger cars and cabooses.
Reviewed in the United States on December 14, 2025 by Mike T.
    • Cool
Item Package Quantity: 1
Very good
Reviewed in the United States on November 11, 2025 by lincoln aulis
    • Best Buy - Good Buy
Item Package Quantity: 1
BUY-BUY-BUY I had a different converter before and 2 out of the box already where dead. This unit is easy to work with. The Pot meter is easy to turn and in the RIGHT location. Voltage adjust is very accurate and stable. I put 2Amps thru it and very little heat.
Reviewed in the United States on August 25, 2025 by Fred Mirzaian
    • Good value
Item Package Quantity: 1
I powered two of these so far and as the other users state it takes 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 to be unstable. TI recommends some kind of filter where a clean output is needed. Adding a 1 ohm resistor in series with a 47 uF 16 V tantalum caused the DVM readings to stabilize. 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. ... show more
Reviewed in the United States on March 3, 2024 by Doktor Dreem
    • Ok buck converter
Item Package Quantity: 1
Neat little buck converter for the bench. Works well
Reviewed in the United States on November 5, 2025 by Camo
    • Stable, good quality, affordable variable dc-dc bucks
Item Package Quantity: 1
I saw other reviews complaining of DOAs, but took a chance on a 10-pack. 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. ... show more
Reviewed in the United States on January 20, 2023 by TelecasterJohnny

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