20 Best 12V To 4V Converter Circuit of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best 12V To 4V Converter Circuit of 2023. Check our ranking below.

2,475 Reviews Scanned

SaleRank No. #1

DROK DC Buck Module, Adjustable Buck Converter Step Down Voltage Regulator 6V-32V 30V 24V 12V to 1.5-32V 5V 5A LCD Power Supply Volt Reducer Transformer Module Board with USB Port Protective Case

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, recommend use of within 50W.
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; Over-temperature protection; Input reverse connection 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 more until voltage changes. 2). The case is packaged unassembled to avoid damage during transit. It needs to be manually installed. 3). Please carefully read the user’s manual, especially the “Cautions” before using. You can find the PDF Instructions on this page -- Product information -- Product guides and documents -- User Manual [PDF].

SaleRank No. #2

5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module

★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.

Rank No. #3

Valefod 3 Pack LM2596 DC to DC Voltage Regulator 4-40V to 1.5-35V Buck Converter with LED Display

【High Precision】The buck converter consists of 36u thickened circuit boards, high-Q inductance with output LED indicator, and superior solid-state capacitors that can effectively filter out high frequency noise. Suitable for various electronic projects.
【Input Voltage】DC 4V 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】57*36*13 mm (with potentiometer). 3pcs 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 potentiometer and monitor voltage with multimeter to get the needed voltage, clockwise to step up voltage and counterclockwise to step-down voltage. (Factory default stays a high voltage, you need to contrarotate about 7-15 circles before the voltage starts ramping down, 1 circle means +/- 1V)

Rank No. #4

HiLetgo 5pcs DC-DC Buck Step Down Module 6-20V 12V/20V to 5V 3A USB Charger Module

USB Charger Module
DC-DC Module
Compatible to Arduino

Rank No. #5

WMYCONGCONG 5 PCS Mini DC-DC Buck Converter 3A Power Adjustable Step-Down Module 4V 12V 24V to 5V 3A

Mini DC-DC 3A power step-down adjustable module buck converter, ideal for DIY mobile power supply, monitor power supply.
The Output Voltage: 4V ~ 24V; Input Voltage: 5V
Output Current: 3A (Max); Conversion Efficiency: 97.5% (maximum)
NOTE: Do not reverse the positive and negative terminals to avoid other damage.
Package Content: 5 * Mini DC-DC 3A Power Step-Down Adjustable Module.

SaleRank No. #6

Valefod 6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.2-35V to 1.25-30V Buck Converter DIY Power Supply Step-Down Module

【High Precision】The buck converter consists of 36u thickened circuit boards, high-Q inductance with output LED indicator, and superior solid-state capacitors that can effectively filter out high frequency noise. Suitable for various electronic projects.
【Input Voltage】DC 3.2V to 35V (input voltage must be 1.5V higher than the output voltage, no boost).
【Output Voltage】DC 1.25V to 30V 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 potentiometer and monitor voltage with multimeter to get the needed voltage, clockwise to step up voltage and counterclockwise to step-down voltage. (Factory default stays a high voltage, you need to contrarotate about 7-15 circles before the voltage starts ramping down, 1 circle means +/- 1V)

SaleRank No. #7

[2 Pack] DC-DC 5A Buck Converter 4-38V to 1.25-36V Step-Down Voltage Regulator High Power Module with LED Display

【High Precision】The buck converter consists of 36u thickened circuit boards, high-Q inductance with output LED indicator, and superior solid-state capacitors that can effectively filter out high frequency noise. Suitable for various electronic projects.
【Input Voltage】DC 4V to 38V (input voltage must be 1.5V higher than the output voltage, no boost).
【Output Voltage】DC 1.25V to 36V voltage is continuously adjustable, maximum output current is 5A.
【Mini Size】62*38*14 mm (with potentiometer). 2 sets 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 potentiometer and monitor voltage with multimeter to get the needed voltage, clockwise to step up voltage and counterclockwise to step-down voltage. (Factory default stays a high voltage, you need to contrarotate about 7-15 circles before the voltage starts ramping down, 1 circle means +/- 1V)

Rank No. #8

uxcell Voltage Converter Regulator DC 24V to DC 12V 60A 720W Truck Power Transformer

Truck Voltage Converter Regulator DC 24V to DC 12V 60A 720W.
Protections: Over-load, Over-current, Over-temperature, Short-circuit, Over-voltage.
Recovery when the 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 bus, large trucks, motor, solar generate electricity, the display screen of bus and taxi,
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 with capacitor before connecting it to the converter. If you use solar panel to supply directly, please note that the open circuit voltage of the solar panel cannot exceed the maximum withstand voltage of the converter. The supply voltage should be within the rated voltage and always leave a certain margin.

Rank No. #9

DC Step Up Converter, 10-32V to 12-60V Voltage Boost Power Supply Converter DC to DC Voltage Step Up Converter Module

➤【Voltage】Input Voltage: 10~32VDC / Output Voltage: 10~60VDC continuously adjustable
➤【Conversion Efficiency】High conversion efficiency, up to 95%
➤【Output Indicator Light】With charging indication; it shows red when charging, green when fully charged
➤【Operating Temperature】-40℃ to 85℃
➤【Note】Please note that the converter is short-circuit protected, but not reverse-connected

Rank No. #10

HiLetgo 2pcs LM2596 Adjustable DC-DC Step Down Buck Power Convert Module 4.0-40V Input to 1.25-37V Output with LED Voltmeter Display

LM2596 DC-DC Buck Step-down Power Converter Module
4.0-40V to 1.25-37V LED Voltmeter
output voltage range of 1.25V ~ 37V

Rank No. #11

BESTEK Universal Travel Adapter 220V to 110V Voltage Converter with 6A 4-Port USB Charging and UK/AU/US/EU Worldwide Plug Adapter (White)

BESTEK Converter for 110V Devices: Patented technology converts voltage in different countries including Australia (100-240V, 50/60Hz) to US/Japan voltage (110V, 60Hz), ideal for charging all kinds of devices
Charges 7 Devices Simultaneously: 4 USB charging ports with a combined 6A output, 3 AC sockets support Max 250W power. [*Note: USB outputs are completely isolated from the AC power to prevent all your devices from being damaged]
24-month Warranty & Safety Guaranteed: NRTL safety tested and upgraded hardware provides complete protection for you and your devices. Comes with over-current, over-load, over-heat and short-circuit protections
Worldwide Use: 1 EU power cable and 3 international adapters (US/UK/AU plug) support outlets in Australia, North America, United Kingdom, Continental Europe, Japan, China, more than 150 countries all over the world
Travel Design: Compact size (6x3x1.57 inches) with 5 foot detachable power cable makes this power converter easy to pack and take anywhere you go

Rank No. #12

PEMENOL 15W DC-DC Buck Boost Voltage Converter, 5V to 3.3V 9V 12V 24V 30V CVCC Step Up / Down Module Adjustable USB Power Supply Module with Shell

★The Output Voltage Can Be Adjusted Arbitrarily: The Adjustable USB Step Up Down Power Supply Module used as a USB input adjustable desktop power supply, the output voltage can be adjusted arbitrarily, and the current limit is 0-2A (wide input 4-13V, wide output 0.5-30V arbitrarily adjusted, with short circuit protection, the short circuit does not burn)
★Safe to Use: Used as a USB charging cable, the charging voltage and maximum charging current can be adjusted arbitrarily (any voltage, with constant current, anti-backflow, which can meet the charging of most batteries)
★Three Input Power Modes: Input 1: Standard Type A USB Male. It just can input DC 5V. Input 2: Micro USB Female. It just can input DC 5V. Input 3: IN+ and IN- welding pads. It can input DC 4.0V-13.0V. When using the welding pad to input, be careful not to connect the reversed positive and negative poles, and do not connect to AC power
★Multiple Protection Functions: short-circuit, over-current, over-temperature, over-power, over-voltage protection, charging anti-backflow protection
★Wide Application: It is widely used in ordinary power supply, battery charger, LED driving power, instrument voltage display, test counter, circuit test, power conversion. For more details, please read the user manual

Rank No. #13

DZS Elec DC-DC Buck Boost Converter Module 5.5-30V 12v to 0.5-30V 5v 24v Adjustable Step Down Up Voltage Regulator Constant Current Voltage 3A 35W Power Supply with LCD Display

Adjustable step-down/up converter, Input Voltage: 5.5-30V, Output Voltage: 0.5-30V, Can be used for common boost and buck module with over current protection, adjustable battery charger, LED driver, etc
Power module limit constant current 0-4A arbitrary regulation, output 3A 35W for long time stable work, up to 4A 50W after enhancing heat dissipation.
LCD (Liquid Crystal Display): Can switch display input voltage, output voltage, output current, output power. Voltage Display Resolution: 0.05V, Current Display Resolution: 0.005A
Safety Protection: LC filter, small output ripple, input anti-reverse connection protection, will not burn down, short-circuit protection, low-voltage protection.
Key Control: Short press IN/OUT to switch input and output voltage, long press to switch output current power. Short press ON/OFF to control output ON or OFF, long press to set the default output state ON or OFF.

Rank No. #14

HiLetgo 2PCS DC-DC Power Buck Module 6V-32V12V24V to QC3.0 Fast Charging Single USB Charging Converter Board

Input voltage range: 6V-32V
Output voltage: default 5V, automatic adjustment between 3-12V after fast charge
Supports multiple fast charging protocols
Output overcurrent and short circuit protection
Over temperature protection

Rank No. #15

DC Converter 12V 24V to 5V 6A 30W Dual USB Female DC DC Buck Converter Power Adapter Step Down Module

【Parameter Introduction】 Input voltage range: 10-32V; output voltage: DC5V, total output current: 6A max; total output power: 30W max (USB cable length: 12.2 inches 31cm)
【Powerful 6A/30W Output】can be enough to charge 2 devices at full speed at the same time, each port output 3Amax, total current output is 6A.
【Multiple protection】With input reverse connection, overvoltage and undervoltage protection, output overcurrent, overvoltage, undervoltage, short circuit and overheat protection，IP68 Waterproof protection
【Efficient conversion】This DC-DC converter module has USB charging port and integrated switch thin regulator module, with stable performance and conversion rate up to 96%
【30W high power use wide】 Solar panel to charge cell phones, car charging transformation, car recorder power supply, home power, DIY and other 5V electronic devices

Rank No. #16

uxcell New Big-Size Voltage Converter Regulator DC/DC DC 24V to DC 12V 40A 480W Transformer Waterproof

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 electricity, the display screen of bus and taxi device.
Notice: 1. Do not use the product with full load for a long time, which will cause the product to burn; 2. Please see the wire clearly before connecting. Be sure to wire according to the wire identification, otherwise, the converter may be damaged.

SaleRank No. #17

DROK Waterproof DC Buck Converter Voltage Regulator 8-22V to 3-15V 5V 12V 3A Adjustable Output Power Supply Transformer Step-Down Volt Module Board for Car Auto Vehicle Motor Regulated SR

Uses synchronous rectification technology, has high conversion efficiency and stable performance; The input should be at least 3V higher than output.
With potentiometer on the bottom, which allows you adjust the accuracy with the mini screw, but ensures you won't easily change its setting when mounted.
Fully sealed, outer enclosure acts as a heat sink, specially made to be waterproof, anti-shock, anti-humidity and dust-proof, more durable.
With reversed-connection protection, over-current protection, over-heating protection and over-voltage protection, hence is safe to use.
Perfect for electronic hobby project, wide application, you can use it on radio, Car Audio, LED display, motor, cell phone, etc.

Rank No. #18

Alinan 12pcs Step-Down Power Supply Module Mini DC-DC 12-24V to 5V 3A Voltage Buck Converter Adjustable 1.8V 2.5V 3.3V 5V 9V 12V

【Reliable & Nice Performance】: the voltage regulator module has high efficiency, ultra-compact size, high frequency, low ripple and stable working performance, widely applicable for fixing work: Synchronous rectification and the circuit conversion efficiency is as high as 97.5%.
【High Quality Material】: Alinan buck converter is made with quality potentiometer and 3A current chip, high current shielding inductor and MLCC solid capacitor with long service life, High current shielding inductance, ultra-low internal resistance, maximize conversion efficiency, reduce heat generation, reliable and durable, bringing convenience in your life.
【Easy to Use】: Integrated design allows port of the regulator board defaults to keep working mode and will be closed if it is at low electric level off, and with ultra-low quiescent current of 0.85 mA; It can be connected to the car battery without a extra switch, car female socket, cigarette lighter cord or the ACC power cord, convenient to use. The best thing about it is its tiny little footprint.
【Mini Board, Maxi Performance】: The power input: DC 4.5 - 24V, adjustable range: 0.8 - 17V; Fixed output: 1.8V, 2.5V, 3.3V, 5V, 9V, 12V (can be chosen on the back); Max output current: 3A; If the actual test input is 12V and output is 1.5A, Size: Approx. 20 x 11 x 5 mm/0.79 x 0.43 x 0.19 ", no other system is required, very useful for small projects.
【Adjustable and Fixed Voltage Output】: this buck converter allows you to get fixed output voltage by connecting the pot on the board, and you can adjust the fixed output voltage by potentiometer as you needed.

Rank No. #19

Weewooday Direct Current Converter Voltage 12V to 5V 3A 15W Direct Current Buck Converter Module, Reduced Voltage Regulator Converter Car Power Converter Adapter with Dual USB Output Power Adapter

Product information: input voltage: 12V DC; Output voltage: 5V; Output current: 3A maximum; No-load current: 10mA; Output power: 15 Watt maximum
High efficiency: the DC to DC converter 12V to 5V is designed with dual USB charging ports so 2 devices can charge at the same time; DC to DC reduced voltage converter features with integrated switch thin regulator module, so the conversion rate is up to 96%
Nice protection: our DC converter voltage regulator is equipped with an intelligent microprocessing chip, which provides overvoltage protection, overcurrent protection, over temperature protection and short circuit protection, with stable and sturdy performance
Applicable occasions: DC buck converter with intelligent protection design is reliable and suitable for a wide range of uses, suitable for GPS navigation, driving recorder, car radio, car audio, MP3/ MP4, walkie talkie, surveillance system, bus display, taxi advertising screen, LCD TV, LED, and so on
Warm tips: when using a voltage converter, the power of the device must be less than 15Watt; The DC reduced voltage converter is not compatible with partial Samsung phones

Rank No. #20

DROK® 10A Synchronous Step-Down Voltage Regulator DC-DC 4-30V to 1.2-30V 12V Continuously Adjustable Volt Buck Converter Module Board Constant Voltage Power Supply Transformer for Automotive

10A Synchronous Rectification Adjustable non-isolated buck module, constant voltage.
Input Voltage:DC 4-30V; Output Voltage: DC 1.2-30V (adjustable,Default output 5V).
Output Current:1-10A (the module can dissipate heat naturally for a long time within 6A, the temperature cannot over 60℃).
With short circuit and over temperature protection.
Without input reverse connection protection or output anti-anti-irrigation protection,if need please install diode at input/output port.

Last update on 2023-08-03 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best 12V To 4V Converter Circuit?

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20 Best 12V To 4V Converter Circuit of 2023 – Romance University

How Do You Buy The Best 12V To 4V Converter Circuit?

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