20 Best 12 Volt Dc Voltage Regulator Circuit [2024]

Are you looking for the best 12 Volt Dc Voltage Regulator Circuit? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 12 Volt Dc Voltage Regulator Circuit.

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1 5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable... 5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V...
2 DC Buck Module, DROK Adjustable Buck Converter Step Down Voltage Regulator 6V-32V 30V 24V 12V to... DC Buck Module, DROK Adjustable Buck Converter Step Down Voltage Regulator 6V-32V 30V 24V 12V to...
3 6-60V 12V 24V 36V 48V 30A PWM DC Motor Speed Controller Digital Regulator Variable Speed Switch... 6-60V 12V 24V 36V 48V 30A PWM DC Motor Speed Controller Digital Regulator Variable Speed Switch...
4 DROK DC Buck Converter, 5.3V-32V to 1.2V-32V 12A Adjustable Power Supply, 5v 9v 12v 24V 30V 32V Step... DROK DC Buck Converter, 5.3V-32V to 1.2V-32V 12A Adjustable Power Supply, 5v 9v 12v 24V 30V 32V...
5 ANMBEST Constant Current CC CV Buck Converter Module DC 6-40V to 1.2-36V 20A 300W Adjustable Step... ANMBEST Constant Current CC CV Buck Converter Module DC 6-40V to 1.2-36V 20A 300W Adjustable Step...
6 Onyehn 5pcs LM317 Adjustable Voltage Regulator Power Supply DC-DC Step-Down DC Converter Circuit... Onyehn 5pcs LM317 Adjustable Voltage Regulator Power Supply DC-DC Step-Down DC Converter Circuit...
7 Anmbest 10 Pack 3 Pins AMS1117-3.3 DC 4.75V-12V to 3.3V Voltage Regulator Step Down Power Supply... Anmbest 10 Pack 3 Pins AMS1117-3.3 DC 4.75V-12V to 3.3V Voltage Regulator Step Down Power Supply...
8 DC Voltage Regulator Buck Converter DC 12V 24V to DC 5V 15A 75W Step Down Reducer Power Converter... DC Voltage Regulator Buck Converter DC 12V 24V to DC 5V 15A 75W Step Down Reducer Power Converter...
9 DC Voltage Reducer Converter DC 8V-40V to 12V 3A 36W Automatic Step Down Up Voltage Regulator Power... DC Voltage Reducer Converter DC 8V-40V to 12V 3A 36W Automatic Step Down Up Voltage Regulator...
10 MGGi DC Converter Regulator 36V 48V Step Down to 12V 30A 360W, Waterproof Big-Size Voltage Reducer,... MGGi DC Converter Regulator 36V 48V Step Down to 12V 30A 360W, Waterproof Big-Size Voltage...
11 HOMELYLIFE Voltage Reducer DC 8V-40V to 12V 3A 36W Automatic Buck Boost Converter Step Down Up... HOMELYLIFE Voltage Reducer DC 8V-40V to 12V 3A 36W Automatic Buck Boost Converter Step Down Up...
12 DROK Waterproof 60W Automatic Step Up Down Voltage Regulator Stabilizer 10V-36V to 12V 5A Buck Boost... DROK Waterproof 60W Automatic Step Up Down Voltage Regulator Stabilizer 10V-36V to 12V 5A Buck...
13 Car DC 12V 4A Voltage Stabilizer Surge Protector Power Supply Regulator for Auto Truck Vehicle Boat... Car DC 12V 4A Voltage Stabilizer Surge Protector Power Supply Regulator for Auto Truck Vehicle...
14 MakerHawk 4pcs USB DC-DC Voltage Buck Regulator Step Down Power Supply Module 9V 12V 24V to 5V Dual... MakerHawk 4pcs USB DC-DC Voltage Buck Regulator Step Down Power Supply Module 9V 12V 24V to 5V...
15 uxcell New BIG-Size Voltage Converter Regulator DC/DC DC 24V to DC 12V 40A 480W Buck Transformer... uxcell New BIG-Size Voltage Converter Regulator DC/DC DC 24V to DC 12V 40A 480W Buck Transformer...
16 DC DC Buck Boost Converter Variable Voltage Regulator CC CV 0.5-30V 4A 5V 6V 12V 24V Power Module... DC DC Buck Boost Converter Variable Voltage Regulator CC CV 0.5-30V 4A 5V 6V 12V 24V Power Module...
17 Valefod 6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.0-40V to 1.5-35V Buck Converter... Valefod 6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.0-40V to 1.5-35V Buck...
18 RioRand 7-70V PWM DC Motor Speed Controller Switch 30A RioRand 7-70V PWM DC Motor Speed Controller Switch 30A
19 5v Regulator, DROK 5pcs Mini Voltage Reducer DC 4.5-24V 12V 24V Step Down to 5V Buck Converter Board... 5v Regulator, DROK 5pcs Mini Voltage Reducer DC 4.5-24V 12V 24V Step Down to 5V Buck Converter...
20 DC-DC Stabilizer, DROK 9V-36V to 12V Boost Buck Converter 5A 60W Waterproof Auto Step Up Down... DC-DC Stabilizer, DROK 9V-36V to 12V Boost Buck Converter 5A 60W Waterproof Auto Step Up Down...
Bestseller No. 1
5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable...
  • ★Input: DC 3-40 V (input voltage must be 1.5 V higher than the output voltage, no boost).
  • ★Output: DC 1.5-35 V voltage is continuously adjustable, maximum output current is 3 A.
  • ★Easy work: convenient to accurately adjust the output voltage with a mini screwdriver.
  • ★Features: Thickened circuit boards,Short circuit and over-temperature protection.
  • ★Application: widely used for DIY mobile power, monitor power supply, power buggies,communications equipment supply,etc.
SaleBestseller No. 2
DC Buck Module, DROK Adjustable Buck Converter Step Down Voltage Regulator 6V-32V 30V 24V 12V to...
  • PARAMETER --- Input voltage range DC 6V-32V; Output voltage DC 1.5V-32V; Max output current 5A, recommend use of within 4.5A; Max output power 75W,...
  • GENERAL USE --- As ordinary step-down module with over-current protection; As constant current LED driver module; DIY a solar power controller, etc.
  • DISPLAY --- Large clear digital LCD display voltage & current value simultaneously.
  • FEATURES --- Constant current/voltage mode; Voltage calibration & current calibration; USB interface; Protective case; Short-circuit protection;...
  • NOTE --- 1). Output voltage is set as around 20V by default, if your input is lower than that, please turn potentiometer anticlockwise for 10 laps or...
Bestseller No. 3
6-60V 12V 24V 36V 48V 30A PWM DC Motor Speed Controller Digital Regulator Variable Speed Switch...
  • ★【Feature】: This motor speed controller uses screw terminals for convenient and quick wiring. Comes with a momentary start/stop switch and a...
  • ★【Stable Function】: This simple and easy-to-use DC motor speed controller has an stable performance. Speed controller is made with high quality...
  • ★【Design】: Designed with a digital display that shows the rate in percentage of actual speed to maximum speed.
  • ★【Input Voltage Range】: DC6V-60V (input voltage should be same as motor rated voltage)
  • ★【Note】: Please allow small size error due to manual measurement. Thanks for your understanding.
SaleBestseller No. 4
DROK DC Buck Converter, 5.3V-32V to 1.2V-32V 12A Adjustable Power Supply, 5v 9v 12v 24V 30V 32V Step...
  • 【Parameter】 DROK Power Supply Module input volt range is DC 5.3-32V; Output volt range is DC 1.2-32V which is variable. Output current can reach...
  • 【Characteristics】 This Buck Converter is equipped with LCD Display, Acrylic Case and Heat Sink. LCD Screen can display input/output voltage,...
  • 【Easy Operation】 A user manual will be included in package, which can help you easier to operate. The button can control ouput voltage ON/OFF...
  • 【Protection】 It has reverse-connect protection, short circuit protection and over current protection. When you connect the input wire reversely or...
  • 【Application】 The volt conversion board can be used for 5v 6v 9v 12v 24V 30V 32V 3a 5a 10a devices, like solar panel, lab, experiment, RV,...
Bestseller No. 5
ANMBEST Constant Current CC CV Buck Converter Module DC 6-40V to 1.2-36V 20A 300W Adjustable Step...
  • Anmbest buck converter input voltage range is DC 6-40V, adjustable output voltage range is DC 1.2-36V, can be used to convert 24v to 12v 5v,...
  • With a wide input voltage range from 6V to 40V, the step-down converter can accurately adjust output voltage and current. The efficiency can be up to...
  • It is designed with 75V/80A large current dual MOS tube. Input and output use high frequency low resistance electrolytic capacitor, low ripple, and...
  • The buck module has 2 heat sink that could enhance heat dissipation. When there is a big difference between input and output voltage, please decrease...
  • Application: Motors, audio, monitor, LED car display, air conditioner, fans, solar energy, photovoltaic energy, DVD, LED lights, pumps, industrial...
Bestseller No. 6
Onyehn 5pcs LM317 Adjustable Voltage Regulator Power Supply DC-DC Step-Down DC Converter Circuit...
  • Adjustable three-terminal voltage regulator module, can replace all three-break voltage regulator modules such as 7805, 7806, 7809, 7812, 7824.
  • On-board regulated power supply, connect the input end of this module to the cigarette lighter of the car, and adjust the potentiometer.
  • The output voltage can be adjusted to 1.25V-30V for your mobile phone, MP3, MP4, PSP and many other devices, very simple and convenient.
  • When need 1.25-60V to charge your electronic device, there only have 12V or 24V battery power, you can use it directly to step down 1.25-30V to solve...
  • the front stage of the system is powered . When you input the power supply voltage lower than the voltage you need (1.25V-30V) when you are working on...
Bestseller No. 7
Anmbest 10 Pack 3 Pins AMS1117-3.3 DC 4.75V-12V to 3.3V Voltage Regulator Step Down Power Supply...
  • AMS1117-3.3 is a positive Voltage Regulator Step Down Power Supply Module, support DC 4.75-12V input and 3.3V fixed voltage and 0.8A current output.
  • The module is suitable for electronic devices such as SCM project design needs 5V power supply, It is simple Dual-panel design and the Input output...
  • Applicable for high-efficiency linear regulator Published Active Power Regulator Battery Charger Active instrument.
  • Applications: Arduino UNO MEGA2560; MSP430 Development Board; 3.3V Low power consumption MCU; FPGA/CPLD PLD Programmable Logic Systems; ARM7 ARM9...
  • AMS1117 overheat shutdown circuit provides overload and over-temperature protection.
Bestseller No. 8
DC Voltage Regulator Buck Converter DC 12V 24V to DC 5V 15A 75W Step Down Reducer Power Converter...
  • Convert unstable 12V / 24V DC power supply into stable 5V 15A DC power output
  • Input voltage: 12V / 24V, Output: 5V /15A
  • High conversion efficiency: Over 90%
  • Over-voltage, over-current, over-temperature, short-circuit auto protection, and automatic recovery
  • Widely used in automotive, surveillance systems, railway signals, medical equipment, instruments and meters, LED products, LED strips, cable TV and...
Bestseller No. 9
DC Voltage Reducer Converter DC 8V-40V to 12V 3A 36W Automatic Step Down Up Voltage Regulator Power...
  • Input Voltage: 12V/24V/36V nominal, accept(8V-40V) range; Output Voltage: DC 12V 3A 36W
  • Adopt Synchronous Rectification Technology to improve conversion efficiency, Maximum Efficiency:≥95%; Ripple Wave: 50Mv; Starting delay time:≤2S
  • Assembled with smart chip, features Over-current /Over-load /Low-load /Short-circuit /Over-heat intelligent protection, can work safely and reliable...
  • Compact aluminium shell with epoxy potting, 100% waterproof, anti-dust, anti-shock protection and better heat dissipation
  • We promise 30 days money back , 1 year replacement assurance, lifetime after-sale service, 24H x 7Day customer service support.
Bestseller No. 10
MGGi DC Converter Regulator 36V 48V Step Down to 12V 30A 360W, Waterproof Big-Size Voltage Reducer,...
  • Golf Cart DC Buck Step-Down Voltage Converter Regulator DC 36V 48V to DC 12V 30A 360W, Output voltage: DC 12V, Output current: 30A, Output power 360W,...
  • Die-cast aluminum shell, expoxy potting, cooling by free air convection, maximum transfer efficiency of 96% max.
  • 5 Safty Protections: Over-load, Over-current, Over-temperature, Short-circuit, Over-voltage; over 100,000 hours lifetime
  • Waterproof rating: IP68, 100% waterproof , can work in rain.
  • Wide application: Used on golf cart,club car,bus, cmb, large trucks,taxi radio,motor, speaker, GPS, LED car display screen, air-conditioner, electric...
Bestseller No. 11
HOMELYLIFE Voltage Reducer DC 8V-40V to 12V 3A 36W Automatic Buck Boost Converter Step Down Up...
  • Input Voltage: 12V/24V/36V nominal, accept(8V-40V) range; Output Voltage: DC 12V 3A 36W
  • Adopt Synchronous Rectification Technology to improve conversion efficiency, Maximum Efficiency:≥95%; Ripple Wave: 50Mv; Starting delay time:≤2S
  • Compact aluminium shell with epoxy potting, 100% waterproof, anti-dust, anti-shock protection and better heat dissipation
  • Assembled with smart chip, features Over-current /Over-load /Low-load /Short-circuit /Over-heat intelligent protection
  • safely and reliable in -40°C~80°C range.
SaleBestseller No. 12
DROK Waterproof 60W Automatic Step Up Down Voltage Regulator Stabilizer 10V-36V to 12V 5A Buck Boost...
  • Adopted synchronous rectification technology, has high conversion efficiency(up to 96%), stable performance and low heat.
  • With intelligent temperature, over-heat, short circuit and transient absorption high voltage protection, more safe to use.
  • Uses Aluminum alloy shell and organic silica gel packaging technology, better to conduct heat, waterproof grade IP67.
  • Easy to connect wires, Input: red(+) black(-), Output: yellow(+) black(-); please connect wires correctly, or it will be damaged.
  • Compact design and small size, has wide application, car alarm, radio, interphone, motors, audio, navigator, monitor, LED car display, etc.
Bestseller No. 13
Car DC 12V 4A Voltage Stabilizer Surge Protector Power Supply Regulator for Auto Truck Vehicle Boat...
  • 4A DC 12V surge protector power supply regulator for Car Auto Truck Vehicle Boat Solar System etc.
  • Protect your devices from being damaged by un-stable voltages from old cars battery or other electricity reasons. Input voltages range: DC10-36V,...
  • IP67 Waterproof alloy housing makes this kit ideal for use in a wide range of applications including vehicles, security systems, hospital equipment,...
  • The length of the line is about 12CM, slim, small volume, easy installation.
  • High quality and performance. 3 Year Warranty. Weight: 250g. Size: 74mm x 74mm x 32mm(L*W*H).
Bestseller No. 14
MakerHawk 4pcs USB DC-DC Voltage Buck Regulator Step Down Power Supply Module 9V 12V 24V to 5V Dual...
  • The input voltage range of mobile power supply boost module is DC6V-26V, output voltage range is DC5.2V, and output current range is 3A.
  • Wide Application: DC-DC step down voltage converter module compatible with many phone models, such as Android series, iPhone series, Huawei, Millet,...
  • High Efficiency: The boost converter module is with high conversion efficiency up to 98%. (The higher the input voltage, the higher the efficiency)
  • Note 1: positive and negative can not be reversed, and the input voltage can not exceed 26V, otherwise it will lead to chip damage! Note 2: When...
  • Strong After-sales Service Team: As long as you have any questions about the product, we will resolve your issue immediately if received your email,...
Bestseller No. 15
uxcell New BIG-Size Voltage Converter Regulator DC/DC DC 24V to DC 12V 40A 480W Buck Transformer...
  • Waterproof IP68 Voltage Converter Regulator DC 24V to DC 12V 40A 480W.
  • Protections: Over-load, Over-current, Over-temperature, Short-circuit, Over-voltage.
  • Auto-recovery when device is back to normal operating; high transfer efficiency of 95% max..
  • Die-cast aluminum shell, anti-shock, and moisture-proof and has stronger durability. Widely used in buses, large trucks, motor, solar generate...
  • Note: It is recommended to use stable DC power for the input power supply If you use the pulsed DC power provided by the generator, please filter it...
SaleBestseller No. 16
DC DC Buck Boost Converter Variable Voltage Regulator CC CV 0.5-30V 4A 5V 6V 12V 24V Power Module...
  • input voltage range is DC 5-30V; output voltage range is DC 0.5-30V, can be arbitrary adjustable; output current can be 3A for long term use, if...
  • LCD displays input/output voltage, output current/output power/output capacity/output time.The module can be set to ON/OFF by default
  • Safe Protection: the module is with Anti-reverse connection protection of input end, so that it will not burn out when there is reverse...
  • Application: the volt conversion board can be used as an ordinary buck/Boost module with over-current protection; used as a high-power LED constant...
  • Output ripple is small and πfilter is available.Thick heat sink .Buck-boost Integrated
Bestseller No. 17
Valefod 6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.0-40V to 1.5-35V Buck Converter...
  • 【High Precision】The buck converter consists of 36u thickened circuit boards, high-Q inductance with output LED indicator, and superior solid-state...
  • 【Input Voltage】DC 3V to 40V (input voltage must be 1.5V higher than the output voltage, no boost).
  • 【Output Voltage】DC 1.5V to 35V voltage is continuously adjustable, maximum output current is 3A.
  • 【Mini Size】45 * 23 * 14 mm (with potentiometer). 6pcs included.
  • 【Easy to DIY】Connect to power source, using a mini screwdriver to increase or decrease output voltage by adjusting the screw on the blue...
SaleBestseller No. 18
RioRand 7-70V PWM DC Motor Speed Controller Switch 30A
  • Potentiometer cable(about 15CM) can be separated, with running stop brake function
  • Suitable for long hours of work:Circuit optimization design,stable
  • Adjust the motor smooth no noise no vibration,with power indication,wide duty cycle adjustment range
  • Using imported high-voltage MOS tube, three pressure 100V high-frequency low-resistance capacitors, automotive fuses
  • PWM frequency: 12KHZ
SaleBestseller No. 19
5v Regulator, DROK 5pcs Mini Voltage Reducer DC 4.5-24V 12V 24V Step Down to 5V Buck Converter Board...
  • DROK voltage regulator input voltage range is DC 4.5-24V, adjustable range is 0.8-17V, fixed output are 1.8V, 2.5V, 3.3V, 5V, 9V, 12V that can be...
  • Output integrated adjustable and fixed voltage, you can get fixed output voltage by soldering the pot on the board. If the fixed output voltage is not...
  • High efficiency and super compact size, high frequency and low ripple, stable working performance, wide range of applications, this 12v to 5v...
  • Strong and high quality construction: imported potentiometer and 3A current chip, high current shielded inductors and MLCC solid capacitance with long...
  • Integrated enable port defaults the working mode and it will be off when it is at low electric level off, which bring a great convenience for users....
Bestseller No. 20
DC-DC Stabilizer, DROK 9V-36V to 12V Boost Buck Converter 5A 60W Waterproof Auto Step Up Down...
  • PARAMETER --- DROK DC-DC converter input voltage range is DC 9~36V (12V); output voltage is DC 12V; output current is 5A; output power is 60W.
  • APPLICATION --- the 12v buck boost converter module can be used in integrated wiring for monitoring fire alarming system; car radio, audio; bus,...
  • PROTECTION --- this voltage stabilizer comes with over-current protection, over-temperature protection; adopts potting technology, characterized by...
  • FEATURE --- the step down power module adopts high-integrated chip, stable and reliable; synchronous rectification technology, with conversion...
  • NOTE --- Leave a margin for the power supply to ensure it can long-term stably working.

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FAQ:

Q: What does a 12 volt regulator do?

A: The regulator just bleeds off any voltage over 12 volts (nominal). So the yellow wire is hot and the mount is ground and the reg just maintains the proper voltage drop. The way you wired your warmers should be fine.

Q: Are watts in 12 volt the same as 120 volt?

A: Watts and volts are not independent of each other. Watts cannot exist without volts since they are the product of a combination of volts and amps. In basic terms and using the hydraulic analogy, volts are similar to pressure and watts are similar to rate. Understanding the basic concept of rate is key to understanding watts vs. volts.

Q: What is the normal test voltage for 12 volt battery?

A: What is the normal voltage for a 12-volt battery? That 2.2 volts is the fully charged, straight off the charger number. The actual resting voltage, or the voltage a battery will settle at 12-24 hours after being removed from the charger, is closer to 2.1 volts per cell, or about 6.4 volts for a 6v battery, and 12.7 volts for a 12v battery.

Q: Will a 12 volt bulb get hot?

A: Thanks for the heads up. And yes, it’s certainly possible that a 12-volt DC LED bulb installed in a 12-volt AC fixture can overheat and possibly cause a fire. That’s because the actual polarity of the power is reversing from positive to negative 60 times a second.