10 Pack 3 Pins AMS1117-3.3 DC 4.75V-12V to 3.3V Voltage Regulator
4.1Editor score
Affordable 10-pack value for projects
Simple 3-pin design for easy wiring
Overheat shutdown protection included
In this guide
Selecting the right voltage regulator is essential for protecting sensitive electronics. A good 5V to 3V voltage regulator ensures stable power delivery to microcontrollers and sensors while preventing damage from fluctuations or excess current.
We evaluated ten high-rated modules based on efficiency, size, output stability, and compatibility. Our list includes both linear and switching regulators suitable for Arduino, ESP32, and portable devices, focusing on real-world performance data.
Each pick highlights key features like current capacity and ripple noise. Prices and availability can change quickly, so verify details on the product page before purchasing to ensure you get the latest version and correct specifications.
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 4.5V to 24V input range
Stable 3.3V output up to 1.8A
Ultra-compact size for tight spaces
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)
5.0Editor score
High efficiency Mini360 switching technology
Handles up to 1.8A continuous current
Low ripple ensures clean power output
Top 10 Best 5V to 3V Voltage Regulator in 2026 Compared
This side-by-side comparison helps you quickly identify the best regulator for your specific voltage and current needs across different project types.
ProductsSpecificationsEditor scorePrice
Editor's Choice
5pcs 3.3V Buck Converter Module
Input: 4.5V to 24V
Output: 3.3V
Max Current: 1.8A
Switching: 1MHz to 1.5MHz
4.6Editor score
Editor's Choice
10 Pack AMS1117-3.3
Input: 4.75V to 12V
Output: 3.3V fixed
Max Current: 0.8A
Type: Linear Regulator
4.1Editor score
Best Premium
5PCS DC-DC Step Down/Step Up Converter
Input: 1.8V to 5V
Output: 3.3V
Max Current: 100mA
Type: Boost/Buck Hybrid
5.0Editor score
3.3V Regulator 5pcs Mini Reducer
Input: 4.5V to 24V
Output: 3.3V
Max Current: 1.8A
Type: Mini360 Switching
5.0Editor score
Dorhea 7 Pack 3.3V DC-DC Buck Converter
Input: 4.75V to 12V
Output: 3.3V fixed
Max Current: 800mA
Type: AMS1117 Linear
4.2Editor score
AMS1117-3.3 DC 4.75V-12V
Input: 4.75V to 12V
Output: 3.3V
Max Current: 800mA
Efficiency: High LDO
5.0Editor score
5PCS 3.3V Mini Buck Converter Board
Input: 5V to 30V
Output: 3.3V
Max Current: 1.8A
Switching: 1.5MHz
3.4Editor score
5pcs 3.3V DC-DC Buck Converter
Input: 4.5V to 30V
Output: 3.3V
Max Current: 1.8A
Application: IoT Devices
10PCS 5V to 3.3V DC-DC Step Down
Input: 4.5V to 7V
Output: 3.3V
Max Current: 800mA
Type: AMS1117 Buck
5.0Editor score
3.3V Regulator 6pcs Mini Reducer
Input: 4.75V to 23V
Output: 3.3V
Max Current: 1.8A
Type: MP1584EN Switching
4.9Editor score
1. 5pcs 3.3V Buck Converter Module – Best Overall Voltage Regulator
5pcs 3.3V Buck Converter Module
Wide input voltage range
Low ripple power output
Compact module design
High efficiency switching
This regulator module stands out as a top choice for its wide input range and stable output. It earns a 4.6 rating due to its consistent performance across various voltage levels.
Pros
- Supports 4.5V to 24V input
- Delivers stable 1.8A current
- Low ripple under 30mV
- Five units per pack included
Cons
- Inductive loads need protection
- Small pins require careful soldering
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It accepts inputs from 4.5V to 24V, making it versatile for batteries and mains adapters. The low ripple ensures sensitive components like sensors and microcontrollers receive clean power.
While it handles inductive loads well, adding a diode and capacitor for motors is recommended to prevent back EMF damage. The compact size requires precision during soldering.
Buyers seeking a reliable power solution for multiple circuits will find this value pack ideal. Its balance of price, performance, and flexibility makes it our overall recommendation.
Wide Input Compatibility
Supporting 4.5V to 24V input, this module adapts to diverse power sources including 12V car batteries and 24V industrial supplies without extra conversion.
Compact and Efficient
Measuring just 17.5mm by 12mm, its tiny footprint saves board space while maintaining high efficiency through a 1MHz to 1.5MHz switching frequency.
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2. 10 Pack AMS1117-3.3 – Best Budget Voltage Regulator
10 Pack AMS1117-3.3
Ten units per pack
Linear regulation design
Simple three pin layout
Overheat protection built
Offering ten units at a low cost, this pack is perfect for bulk projects or prototyping. With a 4.1 rating, it delivers reliable linear regulation for standard applications.
Pros
- Most affordable option listed
- Ten units included in set
- Fits standard pin spacing
- Simple to solder and use
Cons
- Limited to 0.8A output
- Linear design less efficient
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The AMS1117 chip provides a fixed 3.3V output from 4.75V to 12V input. Its dual-panel design simplifies wiring for MCUs like Arduino and ESP32 boards.
Efficiency is lower than switching regulators due to heat dissipation. Current is capped at 0.8A, so avoid high-draw devices to prevent overheating during long runs.
For hobbyists needing many regulators for separate circuits, this pack offers unbeatable value. Its simplicity and low price make it a staple in any electronics toolkit.
Bulk Value
Buying ten units together reduces cost per module significantly, ideal for multi-project builds or classroom electronics kits requiring multiple power regulators.
Simple Design
The straightforward three-pin layout and wide acceptance in maker communities mean datasheets and tutorials are readily available for troubleshooting.
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3. 3.3V Regulator 5pcs Mini Reducer – Best Premium Voltage Regulator
3.3V Regulator 5pcs Mini Reducer
Mini360 switching IC
High current capacity
Tiny dimensions
Ultra low ripple
This module achieves a perfect 5.0 rating thanks to its robust Mini360 design and reliable performance. It excels where space and efficiency are critical constraints.
Pros
- Perfect 5.0 user rating
- Delivers up to 1.8A
- Mini360 ensures high efficiency
- Extremely small footprint size
Cons
- Small solder pads for wires
- Requires careful inductive load handling
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It supports inputs up to 24V and delivers 1.8A with less than 30mV ripple. The high switching frequency allows small external components, keeping the board footprint minimal.
Inductive loads like motors need protection to prevent voltage spikes. Soldering wires to small pads may challenge beginners but ensures a neat final assembly.
Professional projects needing compact, high-current power solutions benefit most. The quality of build and consistent output justify the premium price for critical applications.
Mini360 Technology
The Mini360 IC provides exceptional efficiency and heat management, enabling high output current from a tiny package without excessive cooling needs.
Precision Output
With ripple kept under 30mV, this regulator delivers clean power essential for analog sensors and high-speed communication interfaces.
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4. 5PCS DC-DC Step Down/Step Up Converter – Best Boost Buck Regulator
5PCS DC-DC Step Down/Step Up Converter
Boost and buck modes
Low input threshold
Five pieces per pack
Low current capacity
This converter adapts to both higher and lower inputs to produce 3.3V. Its perfect 5.0 rating reflects reliable performance in low-power scenarios.
Pros
- Handles inputs below output
- Perfect 5.0 rating
- Suitable for single cells
- Five modules for trials
Cons
- Limited to 100mA only
- Not for high power loads
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Inputs from 1.8V to 5V are supported, ideal for battery-powered devices where voltage drops. However, output is capped at 100mA, limiting its use to small loads.
The dual-mode function is rare in this price range, adding flexibility. It works well for sensors or LEDs but fails for microcontrollers drawing high bursts.
Choose this when working with single-cell batteries needing a boost. Its accuracy and versatility make it a niche but valuable tool for portable low-power electronics.
Dual Mode Flexibility
Unlike standard buck modules, this converter can boost voltage when input drops below output, ensuring consistent 3.3V from depleted batteries.
Low Power Niche
Designed specifically for low current demands, it prevents waste in applications where only milliamperes are needed continuously.
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5. Dorhea 7 Pack 3.3V DC-DC Buck Converter – Best Linear Pack
Dorhea 7 Pack 3.3V DC-DC Buck Converter
Seven units included
AMS1117 chip used
Linear voltage regulation
Three pin connector
This pack offers seven reliable linear regulators for projects needing simplicity. Its 4.2 rating highlights consistent output within the specified input range.
Pros
- Good pack size
- Stable fixed output
- Compatible with Arduino
- Overheat shutdown safety
Cons
- Lower efficiency than switching
- Heats up at high loads
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The AMS1117-3.3 design ensures a fixed 3.3V from 4.75V to 12V input. The three-pin layout makes it easy to solder directly onto breadboards or PCBs.
Efficiency drops as input voltage increases since excess voltage dissipates as heat. Keeping current under 800mA prevents overheating without additional heatsinks.
For static power needs where simplicity matters, this pack is solid. It supports common microcontrollers effectively and offers overheat protection for safer operation.
Stable Output
The fixed 3.3V output reduces component count, eliminating the need for adjustment resistors and simplifying circuit design for beginners.
Safety Features
Built-in overheat shutdown circuits protect the chip and connected devices during abnormal conditions or poor ventilation.
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6. AMS1117-3.3 DC 4.75V-12V – Best Large Quantity Pack
AMS1117-3.3 DC 4.75V-12V
Fifteen units included
Linear LDO type
High accuracy output
Wide operating range
Containing fifteen units, this pack is unmatched for large-scale production or classrooms. A perfect 5.0 rating confirms its reliability across diverse applications.
Pros
- Massive quantity value
- Perfect 5.0 rating
- Low dropout voltage
- Overheat protection built in
Cons
- Requires careful soldering
- Lower efficiency design
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Its minimum dropout voltage of 1V helps efficiency when input approaches output. Built-in overheat and overcurrent protection prevent damage during accidental shorts.
As a linear regulator, it dissipates heat proportional to input-output difference. Ensuring adequate ventilation remains important when powering near max current limits.
Ideal for bulk projects needing consistent power, this pack delivers quantity and quality. The accuracy and safety features ensure safe deployment in varied environments.
Low Dropout
With a 1V minimum difference, it can regulate efficiently even as battery voltage drops close to 3.3V, extending usable runtime.
Accuracy
An output voltage accuracy of ±2% ensures precise power levels critical for analog components and stable communication protocols.
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7. 5PCS 3.3V Mini Buck Converter Board – Best Compact Converter
5PCS 3.3V Mini Buck Converter Board
Wide 5V to 30V input
Compact board size
Marked polarity for safety
1.8A current capacity
This converter handles inputs up to 30V, useful for industrial or automotive use. A 3.4 rating suggests variability in performance compared to more consistent models.
Pros
- Supports high input voltage
- Clear polarity indicators
- Compact dimensions
- Five units per pack
Cons
- Lower rating compared to others
- Heat may build without cooling
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It provides 1.8A output with ripple under 30mV. PCB polarity marks reduce connection errors, protecting circuits from accidental reverse wiring during setup.
At high loads, heat dissipation becomes critical. Operating near maximum current for long periods may require airflow to maintain stable output voltage.
Those needing high-voltage input tolerance find this practical. While not perfect, its versatility and safety markings make it a solid choice for experimental projects.
High Voltage Tolerance
Accepting inputs up to 30V allows use with 24V industrial systems without extra isolation components.
Safety Markings
Polarity markings guide users to connect positive and ground correctly, reducing common wiring mistakes during installation.
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8. 5pcs 3.3V DC-DC Buck Converter – Best for Vehicles
5pcs 3.3V DC-DC Buck Converter
Works with solar panels
1.8A peak current
Vehicle power support
5 module pack size
Designed for vehicle and solar inputs, this regulator supports 12V and 24V batteries. Units ship tested, reducing the risk of receiving defective modules.
Pros
- Compatible with car systems
- Suitable for solar
- Peak current high
- Pre-tested units
Cons
- No customer rating available
- Output fluctuates at max load
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It delivers 1.8A peak current suitable for motors and sensors. The compact size fits tight layouts in drones, wearables, and IoT installations requiring stable power.
Output may drop slightly under peak load conditions, but remains stable for standard loads. No available ratings make long-term reliability hard to verify.
Projects involving cars or solar setups benefit from this rugged option. Its testing ensures immediate usability, making it a reliable choice for field deployments.
Vehicle Compatibility
Supporting automotive voltage standards allows safe powering of electronics directly from car battery sources without extra converters.
Quality Control
Each unit undergoes pre-shipment testing to ensure it meets output specifications before reaching the customer.
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9. 10PCS 5V to 3.3V DC-DC Step Down – Best for 5V Sources
10PCS 5V to 3.3V DC-DC Step Down
Ten units per pack
Input 4.5V to 7V
800mA max output
Fixed 3.3V stable
Perfect for USB-powered setups, this pack delivers 3.3V from 4.5V to 7V inputs. A perfect 5.0 rating confirms stable performance across multiple units.
Pros
- Perfect 5.0 rating
- Ten pieces included
- Designed for 5V input
- Compact linear design
Cons
- Limited input voltage range
- Cannot handle higher voltages
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The AMS1117 chip limits output to 800mA. This suits logic-level components but not high-power devices. Keeping voltage within range prevents damage.
Operating outside the 4.5V to 7V window risks failure. Careful source selection is required to ensure safe and reliable operation.
For 5V-based systems, this regulator is simple and effective. Its ten-pack value offers great coverage for multi-device projects needing consistent voltage.
USB Friendly
Designed specifically for 5V USB sources, it simplifies powering 3.3V logic circuits from standard USB ports.
Compact Pack
Ten modules allow rapid prototyping or scaling up without worrying about running out of parts.
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10. 3.3V Regulator 6pcs Mini Reducer – Best for Models
3.3V Regulator 6pcs Mini Reducer
MP1584EN switching IC
Six units per pack
Lightweight design
High current capacity
With a 4.9 rating, this module is trusted by modelers and drone builders. Its MP1584EN chip delivers efficient power with minimal heat buildup.
Pros
- Near-perfect 4.9 rating
- MP1584EN ensures efficiency
- Six units per set
- High output current
Cons
- Small pads require care
- Inductive protection needed
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Inputs from 4.5V to 23V support diverse battery packs. It handles 1.8A well, ideal for flight controllers and motor drivers needing clean power.
Inductive loads require Zener and capacitor protection to avoid feedback spikes. Soldering wires to small pads is tricky but manageable.
For lightweight models and high-current systems, this pack provides reliable performance. The combination of efficiency and high output makes it ideal for critical mobile projects.
MP1584EN IC
This switching regulator IC provides high efficiency and compact size, reducing heat generation in weight-sensitive applications.
Mobile Suitability
Lightweight and compact, these modules are perfect for drones and RC models where every gram matters.
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Buying Guide – How to Choose the Best 5V to 3V Voltage Regulator
Selecting the right regulator depends on voltage range, current needs, efficiency, and physical size.
Input Voltage Range
Ensure the regulator supports your power source voltage, such as 5V, 12V, or 24V. Wider ranges provide flexibility for multiple applications.
Choose modules with input ranges matching your source to prevent damage or unstable output.
Output Current Capacity
Check that the regulator can supply the maximum current your load requires. Exceeding this limit causes overheating or shutdown.
Select regulators with current capacity at least 20% higher than your maximum load.
Efficiency and Type
Switching regulators are more efficient and cooler for high input-output differences. Linear types are simpler but waste more power as heat.
Use switching for battery-powered or high-draw applications and linear for simple low-power circuits.
Physical Size
Compact modules save space on crowded boards. Consider soldering difficulty when choosing smaller footprints for manual assembly.
Measure your available board space and ensure the regulator fits comfortably.
Ripple and Noise
Low output ripple is critical for sensitive sensors and communication modules. High ripple causes instability or data errors.
Look for regulators with ripple below 30mV for stable operation.
Protection Features
Overheat and overcurrent protection protect your circuit from faults. This is important for unattended or remote applications.
Prioritize regulators with built-in safety shutdowns for reliability.
Connector and Pinout
Standard pin spacing matches breadboards and shields. Check compatibility with your existing wiring setup.
Choose pinouts that match your MCU headers for easy connection.
Pack Quantity
Bulk packs offer better value for multiple projects. Ensure all units are tested for consistent performance.
Select packs that match your project count to avoid running out mid-build.
How to Use and Care for Your 5V to 3V Voltage Regulator
Connect the input voltage to the correct VIN pin, observing polarity to prevent reverse damage. Use insulated wires with secure soldering for reliable contact.
Add capacitors if required for stability, especially when driving inductive loads like motors. This reduces noise and protects your regulator from back EMF.
Avoid overloading by keeping current within rated limits. Provide adequate airflow or heatsinks for high-draw applications to prevent overheating.
Frequently Asked Questions
What is the difference between linear and switching voltage regulators?
Linear regulators provide low-noise output but are less efficient as excess voltage dissipates as heat. Switching regulators are more efficient and run cooler, making them ideal for high input-output differences or battery-powered devices.
Can I use a 5V regulator to power 3.3V devices?
Yes, but you need a regulator that steps down 5V to 3.3V. Most 3.3V regulators accept 5V as input and deliver stable 3.3V for microcontrollers and sensors.
Do these regulators need capacitors?
Many include capacitors, but adding external ones improves stability, especially with inductive loads. Always check the datasheet or manual for specific recommendations.
What is the maximum current these regulators can handle?
Capacities vary from 100mA to 1.8A. Choose a regulator rated higher than your load to ensure safety and avoid overheating.
Are these regulators safe for motors?
Motors generate back EMF. Add diodes and capacitors for protection to prevent voltage spikes from damaging the regulator or connected devices.
How do I solder these regulators correctly?
Use thin solder and steady hands. Ensure polarity is correct and heat pads evenly without damaging the PCB. Use a magnifying glass for small modules.
Can these regulators work with solar panels?
Yes, regulators with wide input ranges like 5V to 30V work well with solar panels. Ensure input voltage stays within the specified operating limits.
What happens if the regulator overheats?
Many have built-in thermal shutdowns to prevent damage. Allow cooling time and check current loads or ventilation to prevent repeated trips.
Final Thoughts on Choosing the Best 5V to 3V Voltage Regulator
The 5pcs 3.3V Buck Converter Module stands out as the top overall choice for its balance of efficiency, current, and input flexibility.
For budget builds, the 10 Pack AMS1117-3.3 offers incredible value without compromising basic stability. Premium needs are best met by Mini360 switching modules.
Always verify input-output compatibility and current ratings before purchasing. Check current prices on Amazon to ensure you get the best value for your project.