10 Pack 3 Pins AMS1117-3.3 DC 4.75V-12V to 3.3V Voltage Regulator
4.1Editor score
Affordable 10 pack value
Simple 3 pin design
Overheat protection circuit
In this guide
Finding the right voltage regulator is crucial for stable power in electronic projects. A good 5V to 3V voltage regulator ensures your sensitive components receive clean, consistent energy without risk of damage from fluctuations.
We evaluated ten leading products based on efficiency, output stability, build quality, and user feedback. This list covers buck converters and linear regulators suitable for various applications from hobbyist kits to industrial prototypes.
Each pick highlights specific strengths like current capacity, size, or price. Note that availability and pricing can change frequently, so verify details before purchasing to ensure you get the best fit for your needs.
Top 3 Picks for Best 5V to 3V Voltage Regulator
5pcs 3.3V Buck Converter Module DC 4.5-24V to 3.3V Voltage Regulator
4.6Editor score
Wide input voltage range
Compact space saving size
Low ripple output
3.3V Regulator 6pcs Mini Reducer DC 4.75-23V 5V 12V Buck to 3.3V Buck Converter Board 1.8A Output Mini360 Small Size Aircraft Model MP1584EN Power Module(3.3 Volts)
4.9Editor score
High current output
Miniature footprint size
Stable switching frequency
Top 10 Best 5V to 3V Voltage Regulator in 2026 Compared
This side-by-side comparison highlights the key specifications and strengths of each regulator option to help you quickly identify the best fit for your specific power conversion needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
5pcs 3.3V Buck Converter Module DC 4.5-24V to 3.3V Voltage Regulator
Input: 4.5V-24V
Output: 3.3V
Current: 1.8A
Size: 17.5mm
4.6Editor score
Editor's Choice
10 Pack 3 Pins AMS1117-3.3 DC 4.75V-12V to 3.3V Voltage Regulator
Input: 4.75-12V
Output: 3.3V
Current: 0.8A
Type: Linear Regulator
4.1Editor score
Best Premium
5PCS DC-DC Step Down/Step Up Converter 1.8V-5V to 3.3V, 100mA Max Current
Input: 1.8V-5V
Output: 3.3V
Current: 100mA
Type: Buck/Boost
5.0Editor score
3.3V Regulator 5pcs Mini Reducer DC 5-30V 5V 12V 24V Buck to 3.3V Buck Converter Board 1.8A Output Mini360 Small Size Power Module (3.3, Volts)
Input: 4.5V-24V
Output: 3.3V
Current: 1.5A
Size: Mini360
5.0Editor score
Dorhea 7 Pack 3.3V DC-DC Buck Converter 3 Pins AMS1117-3.3V DC 4.75V-12V to 3.3V Voltage Regulator Step Down Power Supply 800mA Buck Module
Input: 4.75-12V
Output: 3.3V
Current: 800mA
Type: Linear Regulator
4.2Editor score
AMS1117-3.3 DC 4.75V-12V to DC 3.3V Voltage Regulator 15pcs
Input: 4.75V-12V
Output: 3.3V
Current: 800mA
Pack: 15 pieces
5.0Editor score
5PCS 3.3V Mini Buck Converter Board Regulator – 5-30V to 3.3V, 1.8A Output, Small PCB Board Power Buck Module, Black
Input: 5V-30V
Output: 3.3V
Current: 1.8A
Size: 0.67 inches
3.4Editor score
5pcs 3.3V DC-DC Buck Converter, 4.5V-30V to 3.3V Step Down Regulator
Input: 4.5V-30V
Output: 3.3V
Current: 1.8A
Type: Buck Converter
10PCS 5V to 3.3V DC-DC Step Down Power Supply Buck Module AMS1117 800MA Automatic Adjustable Boost Board Start Limit Voltage
Input: 4.5V-7V
Output: 3.3V
Current: 800mA
Type: AMS1117
5.0Editor score
3.3V Regulator 6pcs Mini Reducer DC 4.75-23V 5V 12V Buck to 3.3V Buck Converter Board 1.8A Output Mini360 Small Size Aircraft Model MP1584EN Power Module(3.3 Volts)
Input: 4.5V-24V
Output: 3.3V
Current: 1.8A
Chip: MP1584EN
4.9Editor score
1. 5pcs 3.3V Buck Converter Module DC 4.5-24V to 3.3V Voltage Regulator – Best Overall
5pcs 3.3V Buck Converter Module DC 4.5-24V to 3.3V Voltage Regulator
1.8A Current Output
4.5V to 24V Input
30mV Low Ripple
17.5mm Compact Size
This buck converter module leads our list with a strong 4.6 rating for its reliability and performance. It efficiently steps down voltage from 4.5V to 24V to a stable 3.3V output, ideal for microcontrollers.
Pros
- Wide input voltage range
- High current capacity
- Very low output ripple
- Compact and lightweight
- Value 5 pack
Cons
- Inductive loads need protection
- Soldering skills required
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Its standout quality is the ability to handle up to 1.8A while maintaining a low ripple of under 30mV. This ensures clean power for sensitive electronics like sensors and Arduino boards without noise interference.
The compact size of 17.5mm x 12mm x 4.5mm saves space in tight enclosures. However, users must add protection like diodes when driving motors to avoid voltage spikes damaging the regulator.
If you need a versatile, high current regulator for multiple projects, this pack offers excellent value. It is highly recommended for hobbyists who prioritize stable power and efficient energy conversion in their builds.
Efficient Power Conversion
The high switching frequency of 1MHz to 1.5MHz ensures efficient energy transfer with minimal heat generation compared to linear regulators.
Versatile Input Range
Compatible with 5V, 9V, 12V, and 24V supplies, making it suitable for diverse power sources including batteries and wall adapters.
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2. 10 Pack 3 Pins AMS1117-3.3 DC 4.75V-12V to 3.3V Voltage Regulator – Best Budget
10 Pack 3 Pins AMS1117-3.3 DC 4.75V-12V to 3.3V Voltage Regulator
3.3V Fixed Output
4.75V to 12V Input
0.8A Current Limit
Simple 3 Pin Design
Priced very competitively, this AMS1117-3.3 pack is an excellent choice for basic projects where cost is a primary concern. It offers a reliable linear regulation method for stepping down voltages easily.
Pros
- Very affordable price
- Simple plug and play
- Overheat protection built in
- Great for prototypes
- 10 piece pack value
Cons
- Lower current than buck
- Heat dissipation needed
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The simple dual panel design and 3 pin layout make it extremely easy to connect to MCUs. With built in overheat protection, it safely shuts down under excessive load, protecting your circuit from damage.
As a linear regulator, it is less efficient at higher current loads and can get warm. For small loads under 800mA this is rarely an issue but heat sinks may be needed for long term operation.
If you need a simple, cheap way to get 3.3V power in many separate circuits this is a smart buy. It is perfect for students and makers experimenting with low power devices like sensors.
User Friendly Design
The standard pinout simplifies integration with breadboards and PCBs, reducing the time required for circuit assembly and debugging.
Safe Operation
Overheat and overload protection circuits prevent permanent damage during accidental short circuits or overcurrent situations.
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3. 3.3V Regulator 6pcs Mini Reducer DC 4.75-23V 5V 12V Buck to 3.3V Buck Converter Board 1.8A Output Mini360 Small Size Aircraft Model MP1584EN Power Module(3.3 Volts) – Best Premium
3.3V Regulator 6pcs Mini Reducer DC 4.75-23V 5V 12V Buck to 3.3V Buck Converter Board 1.8A Output Mini360 Small Size Aircraft Model MP1584EN Power Module(3.3 Volts)
MP1584EN Chipset
1.8A Max Current
17mm x 11mm Size
30mV Low Ripple
This premium option boasts an impressive 4.9 rating thanks to its high efficiency and robust build quality. It uses the reliable MP1584EN chipset to deliver stable power even under demanding loads.
Pros
- High current output
- Extremely compact size
- Top rated performance
- Efficient switching design
- Includes 6 units
Cons
- Small pads hard to solder
- Inductive load precautions
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The Mini360 form factor is incredibly small, measuring just 17mm x 11mm x 3.6mm. This makes it ideal for drones, wearable devices, or any project where space is extremely limited.
While it offers 1.8A output, users should be careful with inductive loads like motors which can cause ripples. Adding Zener diodes or capacitors on the output stage is recommended to protect sensitive chips.
If you need a high performance, space saving solution for critical electronics this module is unmatched. It combines the efficiency of a buck converter with the reliability expected from premium components.
High Efficiency Chip
The MP1584EN controller ensures minimal power loss during conversion, keeping the device cool even when supplying high currents.
Compact Footprint
The tiny PCB dimensions allow for dense circuit designs that would be impossible with larger standard regulator modules.
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4. 5PCS DC-DC Step Down/Step Up Converter 1.8V-5V to 3.3V, 100mA Max Current – Best Low Power
5PCS DC-DC Step Down/Step Up Converter 1.8V-5V to 3.3V, 100mA Max Current
1.8V to 5V Input
3.3V Output
100mA Current Cap
Buck/Boost Function
This converter has achieved a perfect 5.0 rating from users who need precise low power regulation. It uniquely supports both step down and step up operations, making it versatile for battery projects.
Pros
- Perfect 5.0 rating
- Boost capability included
- Low current efficiency
- Battery compatible
- Simple design
Cons
- Low current limit
- Not for high power
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Its ability to accept input voltages ranging from 1.8V to 5V means it can maintain a stable 3.3V output even as batteries drain below the target voltage. This is critical for consistent device operation.
The limitation is the 100mA current capacity which restricts its use to low power sensors. It is not suitable for motors or high current microcontrollers but is perfect for sleep mode circuits.
If your project runs on batteries and needs stable voltage despite fluctuations this is the ideal choice. It ensures your device works reliably throughout the entire battery discharge cycle.
Boost Capability
Unlike standard buck converters, this module can increase voltage from inputs lower than the output requirement ensuring stable power from weak batteries.
Battery Life Optimization
By stabilizing voltage even as cells discharge, it allows you to drain batteries further without triggering low voltage warnings.
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5. 3.3V Regulator 5pcs Mini Reducer DC 5-30V 5V 12V 24V Buck to 3.3V Buck Converter Board 1.8A Output Mini360 Small Size Power Module (3.3, Volts) – High Output
3.3V Regulator 5pcs Mini Reducer DC 5-30V 5V 12V 24V Buck to 3.3V Buck Converter Board 1.8A Output Mini360 Small Size Power Module (3.3, Volts)
4.5V to 24V Input
1.5A Continuous Current
30mV Ripple
1MHz Switching
Another Mini360 variant with a perfect 5.0 rating, this pack is valued for its consistent performance and high current delivery. It is designed for applications that need robust power without bulky components.
Pros
- 5.0 user rating
- High current capacity
- Low voltage ripple
- Compact board size
- Includes 5 modules
Cons
- Inductive protection needed
- Soldering required
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The output can reach 1.5A with a ripple under 30mV which is excellent for noise sensitive applications. The switching frequency ensures that the regulator operates efficiently without overheating under normal conditions.
Users should note the warnings about inductive loads like motors. Without proper capacitors or diodes on the output, voltage spikes might interfere with the chips connected to the same power rail.
If you need reliable high current power for embedded projects this option is highly effective. It balances size and performance well, offering a solid choice for serious DIY electronics builders.
Stable Voltage
The low ripple specification ensures that sensitive digital circuits receive clean power which minimizes errors in signal processing.
Efficient Design
Switching at 1MHz allows for smaller external components and better thermal management than older lower frequency designs.
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6. Dorhea 7 Pack 3.3V DC-DC Buck Converter 3 Pins AMS1117-3.3V DC 4.75V-12V to 3.3V Voltage Regulator Step Down Power Supply 800mA Buck Module – Simple Use
Dorhea 7 Pack 3.3V DC-DC Buck Converter 3 Pins AMS1117-3.3V DC 4.75V-12V to 3.3V Voltage Regulator Step Down Power Supply 800mA Buck Module
3.3V Fixed Output
4.75V to 12V Input
800mA Limit
Simple 3 Pin
This pack offers a straightforward solution for users who need a reliable 3.3V source. It utilizes the classic AMS1117 regulator which is known for simplicity and ease of use in many circuits.
Pros
- Easy to connect
- Affordable pack
- Overheat protection
- Reliable brand
- Simple layout
Cons
- Heats up under load
- Not for high amps
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The 3 pin design simplifies connections significantly allowing for quick prototyping on breadboards. It supports inputs up to 12V which is sufficient for many standard power adapters and battery packs.
As a linear regulator it does dissipate more heat than a switching converter when there is a high voltage drop. Ensuring adequate airflow or using a heat sink is recommended for continuous high load usage.
If you value simplicity and reliability over peak efficiency this is a strong candidate. It is well suited for small projects where the voltage difference between input and output is moderate.
Prototyping Friendly
The standard pin spacing makes it easy to solder onto custom boards without needing specialized adapters or breakout boards.
Safety Features
Integrated overheat shutdown protects your device from damage during prolonged high load operations or short circuits.
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7. AMS1117-3.3 DC 4.75V-12V to DC 3.3V Voltage Regulator 15pcs – Bulk Pack
AMS1117-3.3 DC 4.75V-12V to DC 3.3V Voltage Regulator 15pcs
3.3V Fixed Output
4.75V to 12V Input
800mA Output
15 Piece Count
With a 5.0 rating and 15 pieces included this pack is a bulk buyer's delight for those building many identical circuits. It ensures every unit is consistent and reliable for your needs.
Pros
- Perfect 5.0 rating
- 15 piece bulk value
- Wide input range
- Built in protection
- Easy 3 pin layout
Cons
- Limited to 800mA
- Linear heat loss
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The dynamic voltage difference control helps manage power consumption efficiently. This feature ensures that the voltage stays stable even as the load current changes during operation of the device.
It is suitable for a wide range of applications from automotive electronics to portable devices. The overheat protection adds a layer of safety which is crucial for unattended or high ambient temperature environments.
If you need a large quantity of regulators for a school project or mass prototype run this pack offers excellent value. It is reliable and easy to source for standard 3.3V logic requirements.
Bulk Value
Purchasing a 15 piece pack ensures you have spares for experiments and reduces the frequency of reordering parts for small upgrades.
Voltage Stability
The ±2% accuracy ensures that your microcontrollers receive stable voltage preventing erratic behavior or resets due to power issues.
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8. 5PCS 3.3V Mini Buck Converter Board Regulator – 5-30V to 3.3V, 1.8A Output, Small PCB Board Power Buck Module, Black – Wide Input
5PCS 3.3V Mini Buck Converter Board Regulator – 5-30V to 3.3V, 1.8A Output, Small PCB Board Power Buck Module, Black
5V to 30V Input
3.3V Output
1.8A Current
Small PCB Board
This converter is notable for its wide input range accepting up to 30V which makes it compatible with a broad range of power sources. It delivers a solid 1.8A to meet demanding current needs.
Pros
- Wide 30V input
- High current output
- Reverse polarity protection
- Low ripple
- Compact form
Cons
- Lower user rating
- Quality consistency issues
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The board includes reverse polarity marks which helps prevent damage from accidental wiring mistakes. The output ripple is kept low ensuring a clean power supply for sensitive microcontroller boards.
While the specs are impressive the lower rating indicates some inconsistency in quality control. Some users may find the soldering pads difficult to work with or variations in actual performance between units.
If you need high voltage tolerance and high current capacity this board is a viable option. Just ensure you check the individual units upon arrival for any obvious defects before integrating into projects.
High Input Range
Handling up to 30V allows you to use higher voltage battery packs or industrial power supplies safely without extra pre-regulation.
Reverse Polarity
Markings on the board guide correct wiring preventing accidental reverse connection that could destroy the regulator or the board.
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9. 5pcs 3.3V DC-DC Buck Converter, 4.5V-30V to 3.3V Step Down Regulator – Flexible Power
5pcs 3.3V DC-DC Buck Converter, 4.5V-30V to 3.3V Step Down Regulator
4.5V to 30V Input
3.3V Output
1.8A Peak
17.5mm Compact Size
This pack offers a wide input range and high peak current capability making it versatile for various battery and power supply setups. Each unit is tested before shipping to ensure basic functionality.
Pros
- Wide input range
- Compact size
- High current output
- Clean power output
- Tested units
Cons
- No rating yet
- Inductive protection needed
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Its ultra-compact design fits easily into tight spaces like drones or wearables where space is critical. The low ripple ensures that your microcontrollers operate without noise interference from the power supply.
As a new product there is limited user feedback which means you must rely on the provided specs. The recommendation to add protection for inductive loads remains crucial for safe operation with motors.
If you need a compact and flexible regulator for multiple setups this option provides good value. It is well suited for modern portable electronics requiring stable power across a wide voltage range.
Compact Design
Its small footprint enables integration into compact devices where traditional larger regulators would not fit comfortably.
Verified Quality
Testing units before shipping helps reduce the risk of receiving defective modules and improves overall reliability for users.
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10. 10PCS 5V to 3.3V DC-DC Step Down Power Supply Buck Module AMS1117 800MA Automatic Adjustable Boost Board Start Limit Voltage – Specialized
10PCS 5V to 3.3V DC-DC Step Down Power Supply Buck Module AMS1117 800MA Automatic Adjustable Boost Board Start Limit Voltage
4.5V to 7V Input
3.3V Output
800mA Current
Adjustable Limits
This module is designed with a specific input range optimized for 5V systems. It provides a steady 3.3V output at 800mA making it perfect for specific low power tasks with precise requirements.
Pros
- Perfect 5.0 rating
- Narrow optimized range
- Built in limits
- Good 10 pack
- Simple setup
Cons
- Limited input range
- Small current output
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The automatic adjustable boost board features help in maintaining stability and protecting your circuit from overloads. This specialized feature makes it stand out among standard regulators that lack such protections.
The input voltage limit of 7V means it is not suitable for high voltage sources like 12V or 24V supplies. It is best used with USB power or single cell battery packs that stay within the safe range.
If you need a specialized solution for 5V to 3.3V conversion with added safety features this is a strong choice. It is ideal for projects where the input source is known and stable.
Safety Protection
Start limit voltage features prevent damage from overvoltage conditions ensuring your connected devices remain safe during power fluctuations.
Optimized Efficiency
Designed specifically for 5V inputs it avoids the inefficiencies of using a generic converter for standard logic voltage steps.
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Buying Guide – How to Choose the Best 5V to 3V Voltage Regulator
Choosing the right regulator requires considering several factors to ensure your electronic project functions reliably and efficiently.
Input Voltage Range
Ensure the regulator accepts your specific power source voltage. Buck converters typically handle wider ranges than linear regulators which might be limited to lower maximums.
Select a unit that covers your input voltage with a small margin of safety to prevent damage during power spikes.
Output Current Requirements
Calculate the total current your load needs including safety margins. Regulators rated higher than your max load will run cooler and more efficiently.
If your project uses motors or high power sensors choose a regulator rated for at least 1.5A to handle peaks.
Efficiency vs Heat
Switching buck converters are generally more efficient and run cooler than linear regulators. This is crucial for battery powered devices to save power.
If efficiency is secondary to simplicity and cost linear regulators like AMS1117 are adequate for low current applications.
Package Size
For portable or wearable projects a compact Mini360 module is often preferable. Larger boards may not fit in small enclosures.
Check dimensions carefully to ensure the module fits your PCB or project box without modification.
Output Ripple
Low ripple is essential for sensitive sensors and microcontrollers to avoid noise interference. Look for units with ripple under 50mV for best performance.
High ripple can cause erratic resets or reading errors in your circuit which are difficult to debug later.
Protection Features
Built-in protection like overheat or reverse polarity shutdown adds reliability. This protects your components from accidental mistakes during prototyping.
Regulators without these features may require external components to ensure safe operation which adds to cost and complexity.
Pack Quantity
Packs of 5 or more are often cheaper per unit and useful for building multiple prototypes. Buying in bulk can save money for large scale projects.
If you only need one unit single packs might be available but usually cost more than buying a small multi pack.
Ease of Installation
Look for modules with clear pinouts and solder pads. Some require headers which simplify connection but add height to the design.
For quick prototyping modules with screw terminals might be easier than needing to solder thin wires directly to pads.
How to Use and Care for Your 5V to 3V Voltage Regulator
Always verify the input voltage before connecting. Ensure your power source does not exceed the maximum voltage rating of the regulator to avoid permanent damage.
Use appropriate capacitors on both input and output as recommended. These help smooth out voltage spikes and maintain stability during load changes.
If driving inductive loads like motors always add diodes to suppress back EMF. This protects the regulator and other sensitive components on your board from damage.
Frequently Asked Questions
Can I use a 12V supply with these regulators?
Yes most buck converters support input voltages up to 24V or 30V which includes 12V. Always check the specific input range before connecting to avoid exceeding limits.
What is the difference between linear and switching regulators?
Linear regulators are simple and low noise but inefficient for high voltage drops. Switching buck converters are efficient and run cooler but are more complex and cost more.
How do I know if I need a heat sink?
If the regulator gets too hot to touch during use it likely needs a heat sink. Linear regulators under heavy load usually require cooling while buck converters rarely do.
Is soldering required for these modules?
Most modules come with bare pads requiring you to solder wires directly. Some include headers but it is common practice to solder them into a custom PCB or prototype board.
Can these power a Raspberry Pi?
Raspberry Pi models generally need higher current than 800mA. Choose buck converters rated for 1.8A to ensure safe stable power for the Pi without voltage drops.
Are these suitable for battery operated projects?
Yes buck converters are ideal for battery projects due to high efficiency. However ensure the battery voltage matches the regulator's input range to avoid issues.
Final Thoughts on Choosing the Best 5V to 3V Voltage Regulator
Selecting the right regulator ensures your projects run smoothly and efficiently. The options above offer a range of features from high current capability to ultra compact designs.
Prioritize efficiency and stability for battery projects while focusing on cost and simplicity for prototypes. Each pick serves a different need making it easy to find the best match.
Remember to verify current requirements and input ranges before buying. Prices and availability change so check the latest listings to secure the best deals for your electronics needs.