Best Modul 35w 3a Cc 2025

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Last Updated - 26.07.2025

Best Choice

01

TECNOIOT

TECNOIOT 1 Piece 35W DC 5.5-30V to 0.5-30V LCD Display Step Up Down Buck Boost Converter

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9.8

Exceptional

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【Specifications-2】 Soft start: yes (load start is very strong, start may fail) Reverse protection input: yes Anti-intrusion output: yes Short circuit protection: yes Operating frequency: 180 KHz Size: length x width x height 66 x 48 x 21 mm Mounting hole: diameter 4 mm
【Specifications-1】Input voltage: 5.5-30V Output voltage: 0.5-30V Output current: stable operation at 3A for long time, thermal gain up to 4A Output power: 35W natural heat dissipation, 50W heat dissipation Voltage display resolution: 0.05V Power display resolution. e: 0.00005 A. Conversion efficiency: approx. 88%
【35WLCDUPDOWN】 LCD input and output voltage, output current output; Anti-reverse protection input, reverse connection does not burn; Can go up and down, the output voltage can be freely adjusted from 0.5 to 30V, and the current limit from 0 to 4A can be adjusted arbitrarily. Anti-intrusion output, no additional anti-reverse diode is needed to charge the battery;
Easy to use: The button controls the on/off state of the socket, and you can turn it on or off by default. 1. The module has two IN/OUT, ON/OFF buttons: the IN/OUT button is used to change the display of input voltage and output voltage, long press to change the power indicator of the output current;
Easy to use: 2. CC is the potentiometer for current setting, rotation clockwise, you can increase the set current when the load current reaches the set current, switch to the state of the constant current, the DC constant current indicator (red) illuminates; the correct CV is the voltage setting.

13,51 €
Value for Money

02

Elprico

Elprico Multifunctional Power Converter, 35W 3A CC CV Boost/Buck Step Up/Down Converter DC-DC 5V-30V to 0.5V-30V, Professional Power Converter for Circuits

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Stable performance: This boost/buck module can increase or decrease the voltage and maintain a stable output voltage.
Specification and application: it has a fairly low output ripple voltage, e.g. B. 20mV when the output is 12V, 3A. This is ideal for powering speakers, audio amplifiers, artificial circuits, etc.
Protection function: supports overcurrent protection at the input, undervoltage protection at the input and the reverse protection on the MOS input.
Note: Red and blue light lights up with constant current when charging, blue light only lights up when charging with constant voltage, blue and green light lights up when it is almost fully charged, green light only lights up when fully charged.
Easy to use: Input 5 V to 30 V and charge storage batteries, lithium batteries, AA batteries or the LED brightness at constant current.

11,60 €
03

Akozon

Akozon 35W 3A CC CV Boost/Buck Step Up/Down Converter DC-DC 5V-30V to 0.5V-30V Power Converter

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Protection function: the power buck boost module supports 10A overcurrent protection, input undervoltage protection and high efficiency MOS input anti-reverse protection. Constant current values can be adjusted without multimeter. Scaled single turn potentiometers are easier to use.
LED light indicator: Red and blue light when constant current is charged, blue light only at constant voltage, blue and green light when almost fully charged, green light only when fully charged.
Buck boost function: the boost / buck module can be amplified or switched down to maintain a stable output voltage. It is small, powerful, highly efficient and stable in performance.
Buck application: the buck function is realized by the step-down circuit structure, and the output ripple voltage is quite low. For example, if the output is 12V 3A, it is 20mV, which is very suitable for powering speakers, audio amplifiers, artificial circuits, etc.
Boost application: input 5 V to 30 V, can be used battery, lithium battery, AA rechargeable battery or can be used. Very low output ripple voltage. Low ESR capacitor + two-stage filtering, suitable for the power supply of audio amplifier boards and analogue circuits.

11,43 €
04

JZK

JZK DC-DC Buck Boost Converter Board LCD Display 5.5-30V to 0.5-30V Adjustable Constant Current Voltage Step Up Regulator 3A 35W Power Supply Module

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9.4

Excellent

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Main highlights

Pack of 6. Using a buck boost chip as the main regulator, an external 60V 75A MOS tube as a switching tube, dual 60V 5A SS56 Schottky for equivalence, sufficient voltage resistance and sufficient power, which is better than the immature XL6009/LM2577 solution on the market (many pressure and flow resistance performance can not reach
Output voltage 0.5-30V output current: it can work stably at 3A for a long time, and it can reach 4A with improved heat dissipation. Output power: natural heat dissipation 35W, improved heat dissipation 50W.
Input voltage: 5.5-30V (if the input voltage is 5V, it can also realize buck boost, but the measurement of voltage and current is not accurate; if it is lower than 4.7V, it will be undervoltage protection).
3. It can be reinforced and baked, the output voltage can be adjusted arbitrarily from 0.5-30V, and the limit current can be adjusted arbitrarily from 0-4A. 4. The button controls the on/off status of the output terminal and can be set to ON or OFF by default after switching on.
1. LCD can display input and output voltage, output current and output power. 2. The input terminal is protected against reverse connection, and the reverse connector does not burn out. 3. The output terminal is anti-inverting, and there is no need to add an anti-inverting diode when charging the battery.

9,99 €
05

plplaaoo

Boost Converter Module 35W 3A CC CV Step the Voltage Regulator Power Supply for Charging Batteries and LED Lighting with 5 V to 30 V 0.5 V to 30 V Output

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9.2

Excellent

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Main highlights

[Comprehensive Protection Features] Equipped with over-current protection, input undervoltage protection and MOS input anti-reverse protection, this module protects your devices from potential damage. These advanced protection mechanisms ensure reliable and safe operation under various conditions.
Wide input voltage range: With an input voltage range of 5 V to 30 V, this module is versatile enough to charge storage batteries, lithium batteries, AA rechargeable batteries and adjust the constant current brightness of the LED brightness. Its adaptability makes it a must have for various charging and lighting needs.
Versatile voltage conversion: This boost converter module has been designed to efficiently rise up or the voltage drop or ensure a stable output voltage. Whether you need to increase or decrease voltage, this module seamlessly adapts to your performance requirements making it ideal for various applications.
Low output wave voltage: Experience a minimum output wave voltage with this module, which is at 12 V 3 A output of 20 mV. This function is suitable for sensitive devices such as speakers, audio amplifiers and artificial circuits to ensure a clean and stable power supply.
Intuitive charging indicators: Stay informed about the charging status with the intuitive LED indicators of the module. Red and blue lights indicate constant current charging, blue light means constant voltage charging, blue and green lights show near full charge, and green light confirms full charge. This function ensures that you always know the charging process.

10,14 €
06

NOENNULL

Modul 35W 3A CC CV Boost Step Up Down Konverter

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Rotes und blaues Licht leuchten beim Laden mit konstantem Strom, blaues Licht leuchten nur beim Laden mit konstanter Spannung, blaues und grünes Licht leuchten, wenn fast vollständig geladen ist, grünes Licht leuchten nur, wenn es vollständig geladen ist
Geben Sie 5 V bis 30 V ein und es kann eine Speicherbatterie, eine Lithiumbatterie oder eine wiederaufladbare AA-Batterie laden oder die LED-Helligkeit mit konstantem Strom einstellen
Es unterstützt den Eingangsüberstromschutz, den Eingangsunterspannungsschutz und den MOS-Eingangs-Rückwärtsschutz
Dieses Boost-/-Modul kann die Spannung erhöhen oder verringern und eine stabile Ausgangsspannung aufrechterhalten
Die Ausgangswelligkeit ist relativ niedrig, z. B. 20 mV, wenn der Ausgang 12 V und 3 A beträgt, was sich hervorragend die Stromversorgung von Lautsprechern, Audioverstärkern, künstlichen Schaltkreisen usw. eignet

9,59 €
07

Vikye

Vikye Automatic Voltage Converter, CC CV 35W 3A Boost/Buck Step Up/Down Converter, Professional Converter DC-DC 5V-30V to 0.5V-30V

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Stable performance: This boost/buck module can increase or decrease the voltage and maintain a stable output voltage.
Specification and application: it has a fairly low output ripple voltage, e.g. B. 20mV when the output is 12V, 3A. This is ideal for powering speakers, audio amplifiers, artificial circuits, etc.
Protection function: supports overcurrent protection at the input, undervoltage protection at the input and the reverse protection on the MOS input.
Note: Red and blue light lights up with constant current when charging, blue light only lights up when charging with constant voltage, blue and green light lights up when it is almost fully charged, green light only lights up when fully charged.
Easy to use: Input 5 V to 30 V and charge storage batteries, lithium batteries, AA batteries or the LED brightness at constant current.

5,03 €
08

WPKD BLUEIY

35W 3A CC CV Step Down Module, Boost Buck Step Up Down Converter DC-DC 5V-30V to 0.5V-30V Voltage Regulator Buck Converter Constant Current Power Supply Module

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile charging indicators: the module has intuitive LED indicators that signal different charging states - red and blue for constant current charging, blue for constant voltage, blue and green when the battery is almost fully charged, and green when the battery is fully charged, so that the charging process can be easily monitored status at a glance.
HIGH PERFORMANCE STABILITY With a remarkably low output of just 20mV at a 12V 3A output, this converter promises a clean and stable power supply for sensitive electronics that requires minimal interference, such as speakers and audio amplifiers.
EFFICIENT POWER MANAGEMENT This DC-DC converter module seamlessly combines buck and boost mechanisms, enabling an adjustable output voltage range from 0.5V to 30V, efficiently handling input voltages between 5V and 30V. Achieve upward and 89% downward conversion efficiency of up to 91%, ideal for various electronics including audio devices and LED applications.
COMPACT & DURABLE DESIGN With a size of 69*28*21mm, this compact module provides maximum output power up to 60W (with improved heat dissipation) and combines strong power in a small space. The robust construction can be conveniently integrated into a range of DIY projects and commercial applications.
Advanced Protection Functions Equipped with multiple safety protection functions, this module includes 10A input overcurrent protection, highly efficient MOS reverse protection, and undervoltage protection to ensure stable performance under various electrical conditions.

10,39 €
09

Oumefar

35W 3A Boost Converter CC CV 5-30V to 0.5-30V Adjustable Power Supply Transformer Module DC Voltage Increase Regulator Adjustable Constant Current Voltage Step Up Down

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Stable Output Voltage】: This boost / buck module can increase or decrease the voltage and maintain a stable output voltage. Our buck module is characterised by small size, high performance, high efficiency and stable performance.
【Overcurrent Protection for Support Input】: This power reduction module supports the overcurrent protection, undervoltage protection and non-return protection of the MOS input.
【Battery Indicator】: Red and blue light is on with constant current when charging, blue light only lights up when charging with constant voltage, blue and green light will light up when almost fully charged, green light only lights up when fully charged.
Widely used: the DC/DC power converter has a fairly low output ripple voltage, e.g. B. 20mV when the output is 12V 3A. This is ideal for powering speakers, audio amplifiers, artificial circuits, etc.
Input 5 V to 30 V: the input 5 V to 30 V and our boost module can charge storage batteries, lithium batteries, AA batteries or adjust the LED brightness at a constant current. Stable operation.

8,19 €
10

YUMILI

YUMILI Modul, 35W 3A CC CV Boost/Buck Step Up/Down Converter DC-DC 5V-30V auf 0.5V-30V

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Strong Function】Supports over-current protection at the input, low voltage protection at the input and reverse polarity protection at the MOS input.
【Stable Performance】This boost/buck module can increase or lower the voltage and maintain a stable output voltage.
【Note】Red and blue light lights up with constant current when charging, blue light only lights up with constant voltage when charging, blue and green light is on almost full charge, green light only lights up when fully charged.
【Fit for】It has a relatively low output ripple voltage, for example 20mV when the output is 12V 3A, which is ideal for power supply of speakers, audio amplifiers, artificial circuits, etc.
Multifunctional input 5 V to 30 V and it can charge battery, lithium battery, AA battery or adjust the constant current LED brightness.

9,59 €