Top 8 LM317 Variable Voltage Regulator – Power Converters

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KNACRO LED LM317 Step Down Power Supply Module Adjustable Voltage Regulator Input DC 0V-30V AC 0V-22V Output DC 1.25V-30V 2A

KNACRO #ad - Step down power supply Module With LED Meter. Input: dc 0v ~ 30v / ac 0v ~ 22v, output: dc 1. 25v ~ 30v. Circuit board size: 69 x 50 x 27mm L x W x H. Output current: 2A Max. Using double adjustment potentiometer, to ensure good contact, effectively protect the load.
BrandKNACRO #ad
ManufacturerKNACRO #ad
Part NumberEXPSD005935

2. Onyehn


Onyehn 5pcs LM317 Adjustable Voltage Regulator Power Supply DC-DC Step-Down DC Converter Circuit Board Adjustable Linear Regulator 5 Pack

Onyehn #ad - The front stage of the system is powered. 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 your troubles. Adjustable three-terminal voltage regulator module, 7812, 7809, 7806, can replace all three-break voltage regulator modules such as 7805, 7824. When you input the power supply voltage lower than the voltage you need 1. 25v-30v when you are working on a project, choose it for your best choice. 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, mp4, PSP and many other devices, MP3, very simple and convenient.
BrandOnyehn #ad
ManufacturerOnyehn #ad
Height0.39 Inches
Length3.94 Inches
Weight0.04 Pounds
Width3.15 Inches
Part NumberLA001



DC Buck Module, DROK 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

DROK #ad - 3. 2. Note - 1. 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. Please carefully read the user’s manual, especially the “Cautions” before using.

Display - large clear digital LCD display voltage & current value simultaneously. 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. It needs to be manually installed. The case is packaged unassembled to avoid damage during transit. You can find the pdf instructions on this page -- Product information -- Product guides and documents -- User Manual PDF.

General use - as ordinary step-down module with over-current protection; As constant current LED driver module; DIY a solar power controller, etc. Features - constant current/voltage mode; voltage calibration & current calibration; USB interface; Protective case; Short-circuit protection; Over-temperature protection; Input reverse connection protection.
BrandDROK #ad
ManufacturerDROK #ad
Part Number180080AFA



DROK 2pcs Waterproof DC Buck Converter 8V-22V 12 V Step Down to 1V-15V 6V 9V 3A Adjustable Power Supply Voltage Regulator Module, 5V DC Converter

DROK #ad - Safe protection: our 5v dc converter is with reversed-connection protection, over-current protection, over-heating protection and over-voltage protection, hence it is safe to use. Drok buck converter input voltage range is dc 8v-22v; adjustable output voltage range is DC 1V-15V, if for long-term work, please ensure input voltage is at least 3V higher than output voltage; max output current is 3A, 2A doesn't need to enhance heat dissipation.

Application: the stepdown regulator module is perfect for electronic hobby project, Cell phone, you can use it on radio, LED display, motor, car audio, wide application, etc.

Features: the dc-dc converter is fully sealed, anti-shock, outer enclosure acts as a heat sink, specially Made to be waterproof, anti-humidity and dust-proof, more durable. Potentiometer: the volt transformer is 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.
BrandDROK #ad
ManufacturerDROK #ad
Part Number200373



DC DC Buck Boost Converter Variable Voltage Regulator CC CV 0.5-30V 4A 5V 6V 12V 24V Power Module Adjustable Voltage Regulated Laboratory Power Supply

TKXEC #ad - Safe protection: the module is with anti-reverse connection protection of input end, and the protection threshold is adjustable. Multiple software protection mechanisms are available, the output will be automatically turned off. Lcd displays input/output voltage, output current/output power/output capacity/output time.

The module can be set to ON/OFF by default. No need to add anti-backflow diode when charging. When the working parameters of the module exceed the protection threshold, so that it will not burn out when there is reverse connection. Anti-backflow protection at the output end. Output ripple is small and πfilter is available. Thick heat sink. Buck-boost Integrated. Input voltage range is dc 5-30v; output voltage range is dc 05-30v, it can reach 4a; max output power is 35w, if enhance dissipation, if enhance heat dissipation, can be arbitrary adjustable; output current can be 3A for long term use, it can reach 50W.

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 current driver module; DIY a solar power controller, Battery Charging.
BrandTKXEC #ad
Manufacturershenzhenshixinruidianzikejiyouxiangongsi #ad
Height1.02 Inches
Length3.11 Inches
Weight0.15 Pounds
Width1.69 Inches

6. Kungber


Coarse and Fine Adjustments with Alligator Leads, Kungber DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Linear Power Supply with 4-Digits LED Power Display 5V2A USB Output

Kungber #ad - The constant voltage/current mode can automatically switch with load changes. Compact and various application: this dc power supply is less than 3 lb and measures only 9. 5 x 3. 4 x 6. 1 inches, lamp test, electroplate, battery charge, brush plating, aging testing, electrolyzation, applies for laboratory, home DIY and other requirements.

Constant voltage c. V. 5v/2a usb interface could charge your cellphone and provide power for the device which you want to repair, school, repair, no worry about running out of power. Mode automatic conversion: easy to dial in the desired voltage and current with the coarse and fine adjustment knob. Kungber power supply use premium electronic components, Voltage overload, provide reliable working status and prolong the life of product effectively.

The conversion of constant voltage and constant current is indicated by the LED display on the front panel. High precision with 4-digit and power display: kungber 30v 10a dc benchtop power supply is a professional power supply regulation device that has a high resolution of 001v and 001a. What you get - 1 x kungber sps3010 dc power supply, 1 x Output Power Cord, 1x Input Power Cord, 1 x user manual, and Technical Support.
BrandKungber #ad
ManufacturerKungber #ad
Height9.5 Inches
Length6.1 Inches
Weight3 Pounds
Width3.4 Inches
Part NumberSPS Séries



DROK DC to DC 5.3V-32V to 1.2V-32V 12V Power Supply Module, Adjustable Voltage Regulator, 12A LCD Step Down Volt Transformer 160W CC CV Buck Converter Reducer

DROK #ad - Button control: button control output voltage ON / OFF status, and you can set the default output state is ON or OFF of the next time power-on. Safe protection: the voltage regulator module is with reverse connection protection at input terminal, reverse connection will not burn; short circuit protection.

Lcd display: the buck converter is designed with lcd, output current and output power; voltage display resolution is 005v, can display input and output voltage, current display resolution is 0005a. Application: the volt conversion board can be used as an ordinary buck module with over-current protection; used as a high-power LED constant current driver module; DIY a solar power controller, etc.

Drok power supply module input voltage range is dc 5. 3-32v; output voltage range is dc 1. 2-32v, if enhance heat dissipation, if enhance dissipation, can be arbitrary adjustable; output current can be 8A for long term use, it can reach 12A; max output power is 120W, it can reach 160W.
BrandDROK #ad
ManufacturerDROK #ad
Part Number2001711007

8. Generic


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

Generic #ad - Application: widely used for DIY mobile power, monitor power supply, communications equipment supply, power buggies, etc. Easy work: convenient to accurately adjust the output voltage with a mini screwdriver. Output: dc 1. 5-35 v voltage is continuously adjustable, maximum output current is 3 A. Input: dc 3-40 v input voltage must be 1. 5 v higher than the output voltage, no boost. Features: thickened circuit boards, Short circuit and over-temperature protection.
BrandGeneric #ad
ManufacturerDoes Not Apply #ad
Part NumberNA