10 Pack 3 Pins AMS1117-3.3
4.1Editor score
Supports 4.75V to 12V input
Provides fixed 3.3V output voltage
Delivers up to 0.8A current output
In this guide
Selecting the right voltage regulator is crucial for powering sensitive electronics like microcontrollers and sensors. A good regulator ensures stable output from unstable inputs while protecting your components from damage during operation.
We compared ten highly rated modules focusing on input range, current capacity, size, and protection features. This list covers both buck converters and linear regulators suitable for hobbyists and professional designers alike.
Each pick highlights key specifications, pros, cons, and ideal use cases to help you choose quickly. Note that product availability and pricing may vary over time so verify details before purchasing your next project.
Top 3 Picks for Best 5V to 3V Voltage Regulator
5pcs 3.3V Buck Converter Module
4.6Editor score
Wide input voltage from 4.5V to 24V
Compact ultra small size for tight spaces
Stable output with low ripple under 30mV
3.3V Regulator 6pcs Mini Reducer
4.9Editor score
Very small size with high output current
Supports input range from 4.5V to 24V
Switching frequency typically at 1 MHz
Top 10 Best 5V to 3V Voltage Regulator in 2026 Compared
This side by side comparison table presents key specifications for all ten selected voltage regulator modules. It helps you quickly identify which model matches your specific input voltage current and size requirements for your electronics project.
ProductsSpecificationsEditor scorePrice
Editor's Choice
5pcs 3.3V Buck Converter Module
Input 4.5V to 24V
Output 3.3V fixed
Max current 1.8A
Size 17.5x12x4.5mm
4.6Editor score
Editor's Choice
10 Pack 3 Pins AMS1117-3.3
Input 4.75V to 12V
Output 3.3V fixed
Max current 0.8A
Protection includes overheat shutdown
4.1Editor score
Best Premium
5PCS DC-DC Step Down/Step Up Converter
Input 1.8V to 5V
Output 3.3V fixed
Max current 100mA
Supports step down and up
5.0Editor score
3.3V Regulator 5pcs Mini Reducer
Input 4.5V to 24V
Output 3.3V fixed
Max current 1.5A
Size 17.5×12.3×4.3mm
5.0Editor score
Dorhea 7 Pack 3.3V DC-DC Buck Converter
Input 4.75V to 12V
Output 3.3V fixed
Max current 800mA
Overheat overcurrent protection included
4.2Editor score
AMS1117-3.3 DC 4.75V-12V
Input 4.75V to 12V
Output 3.3V fixed
Max current 800mA
Operating temp -40 to 125C
5.0Editor score
5PCS 3.3V Mini Buck Converter Board
Input 5V to 30V
Output 3.3V fixed
Max current 1.8A
Size 0.67×0.24×0.16 inches
3.4Editor score
5pcs 3.3V DC-DC Buck Converter
Input 4.5V to 30V
Output 3.3V fixed
Max current 1.8A peak
Ready for Arduino Raspberry Pi
4.5Editor score
10PCS 5V to 3.3V DC-DC
Input 4.5V to 7V
Output 3.3V fixed
Max current 800mA
Start limit voltage adjustable
5.0Editor score
3.3V Regulator 6pcs Mini Reducer
Input 4.5V to 24V
Output 3.3V fixed
Max current 1.8A
Size 17x11x3.6mm
4.9Editor score
1. 5pcs 3.3V Buck Converter Module – Best Overall for Wide Input Range
5pcs 3.3V Buck Converter Module
Input 4.5V to 24V
Output 3.3V fixed
Max current 1.8A
Size 17.5x12x4.5mm
This module delivers stable 3.3V output from inputs as high as 24V. With a 4.6 star rating it stands out for reliability and versatility in electronics projects. Its wide input range makes it ideal for diverse power sources.
Pros
- Wide input voltage range supports many power sources
- Compact size fits into tight PCB layouts easily
- Low ripple ensures clean power for sensitive chips
- Five modules per pack offer great value for builders
- Switching frequency provides stable power delivery
Cons
- Inductive loads need extra diode protection
- Requires soldering for permanent installation
We may earn a commission when you buy through this link, at no additional cost to you.
The compact design allows easy integration into embedded or portable builds. Low ripple and high switching frequency keep power clean. It can supply up to 1.8A to microcontrollers and sensors without voltage drops.
Inductive loads such as motors require additional protection components to avoid damage. While soldering is needed the small footprint compensates for the extra work. Most hobbyists find the installation straightforward with basic tools.
Buy this if you need a versatile regulator for varied input voltages. It suits makers and professionals requiring stable low voltage power. The five pack value makes it practical for multiple prototyping sessions.
Wide Input Voltage Range
Supports inputs from 4.5V up to 24V allowing use with many battery packs or adapters.
Compact and Efficient Design
Ultra small size saves board space while maintaining high efficiency for portable devices.
We may earn a commission when you buy through this link, at no additional cost to you.
2. 10 Pack 3 Pins AMS1117-3.3 – Best for Simple Linear Regulation
10 Pack 3 Pins AMS1117-3.3
Input 4.75V to 12V
Output 3.3V fixed
Max current 0.8A
Protection includes overheat shutdown
The AMS1117-3.3 is a trusted linear regulator delivering stable 3.3V with minimal circuit complexity. It earns a 4.1 star rating for reliability in low noise applications like audio or sensor circuits.
Pros
- Simple three pin design for easy wiring
- Overheat shutdown protects components during overload
- Affordable price for bulk project supplies
- Compatible with many microcontroller boards
- Fixed output eliminates need for adjustment
Cons
- Lower efficiency compared to switching regulators
- Limited input voltage range up to 12V
We may earn a commission when you buy through this link, at no additional cost to you.
Its three pin layout simplifies connections to development boards like Arduino or STM32. Built in overheat shutdown prevents damage during excessive load. The ten pack offers plenty for prototyping multiple circuits.
Linear regulators dissipate excess heat so efficiency is lower than switching types. Input voltage is capped at 12V which may not suit higher supply sources. Still it remains popular for quiet stable power needs.
Choose this when simplicity and low noise are priorities over efficiency. It works well for low current projects or when input stays below 12V. The bulk pack ensures you always have spares on hand.
Simple Three Pin Wiring
Input output and ground pins allow quick soldering and integration into existing circuits.
Built In Overheat Protection
Shuts down automatically when temperature exceeds limits to prevent permanent chip damage.
We may earn a commission when you buy through this link, at no additional cost to you.
3. 5PCS DC-DC Step Down/Step Up Converter – Best for Low Power Portable Devices
5PCS DC-DC Step Down/Step Up Converter
Input 1.8V to 5V
Output 3.3V fixed
Max current 100mA
Supports step down and up
This converter adjusts input between 1.8V and 5V to deliver steady 3.3V. Its perfect rating reflects reliability for low current portable gadgets. It handles both buck and boost modes for versatile battery operation.
Pros
- Steps up or down to maintain 3.3V output
- Ideal for battery powered wearables and sensors
- Perfect five star rating indicates high customer satisfaction
- Wide input range covers single cell batteries
- Small size fits into tight wearable enclosures
Cons
- Low maximum current of 100mA limits use cases
- Not suitable for high power microcontroller projects
We may earn a commission when you buy through this link, at no additional cost to you.
The low current limit suits sensors or low power MCUs. Its compact form factor works well inside wearables or small IoT devices. The flexible input range ensures stable power as batteries drain or charge.
Higher power projects exceed the 100mA capability. For demanding loads a different regulator with higher output is required. This module excels only in applications with modest current demands.
Buy this for battery operated portable devices needing stable voltage. It supports everything from single cell Li-ion to 5V sources. Ensure your load stays under 100mA to avoid performance issues.
Dual Step Up and Down Modes
Maintains 3.3V output regardless of input being higher or lower than target.
Low Power Portable Suitability
Optimized for devices drawing minimal current like environmental sensors or trackers.
We may earn a commission when you buy through this link, at no additional cost to you.
4. 3.3V Regulator 5pcs Mini Reducer – Best for Higher Current Buck Conversion
3.3V Regulator 5pcs Mini Reducer
Input 4.5V to 24V
Output 3.3V fixed
Max current 1.5A
Size 17.5×12.3×4.3mm
This Mini360 based module offers robust 1.5A output in a tiny package. A perfect rating shows users trust it for demanding applications. It handles inputs up to 24V making it versatile for many power sources.
Pros
- High current output of 1.5A for heavier loads
- Very small footprint saves valuable PCB space
- Supports wide input from 4.5V to 24V
- Low ripple maintains stable output under load
- Perfect five star rating for consistent performance
Cons
- Inductive loads require external protection components
- Soldering wires required for connection
We may earn a commission when you buy through this link, at no additional cost to you.
Low ripple and high switching frequency keep output clean even under load. The compact dimensions fit into dense PCB layouts easily. It is suitable for Arduino Raspberry Pi or STM32 projects needing higher current.
Inductive components like motors may generate ripple affecting sensitive chips. Adding protection capacitors or Zener diodes is recommended. Despite this the module performs well in standard digital circuits.
Select this for projects needing more than 800mA at 3.3V. It balances size and power output effectively. The five pack ensures you have backups for multiple builds or repairs.
High Current Output Capability
Delivers up to 1.5A to power peripherals or multiple devices simultaneously.
Compact PCB Integration
Small size allows dense component placement on custom circuit boards.
We may earn a commission when you buy through this link, at no additional cost to you.
5. Dorhea 7 Pack 3.3V DC-DC Buck Converter – Best for Budget Bulk Purchasing
Dorhea 7 Pack 3.3V DC-DC Buck Converter
Input 4.75V to 12V
Output 3.3V fixed
Max current 800mA
Overheat overcurrent protection included
This pack offers excellent value for makers needing multiple regulators. It uses the reliable AMS1117-3.3 chip with safety protections. The 4.2 rating reflects solid performance for typical hobbyist electronics.
Pros
- Affordable pricing for seven units in one pack
- Integrated overheat and overcurrent protection features
- Simple wiring for common development boards
- Stable 3.3V output for consistent performance
- Suitable for low power consumption microcontrollers
Cons
- Limited to 800mA maximum output current
- Input voltage capped at 12V
We may earn a commission when you buy through this link, at no additional cost to you.
Protection features safeguard your circuits during overload or overheating. The three pin design simplifies soldering to MCU boards. It works well for sensors or low power logic circuits needing steady voltage.
Higher current demands exceed the 800mA limit. Input voltage restriction may prevent use with 24V supplies. These limits are acceptable for many standard embedded or portable projects.
Buy this for cost effective prototyping across multiple projects. It ensures you have spares for repairs or expansions. Verify your current needs stay within 800mA for reliable operation.
Integrated Safety Protections
Shuts down on overheat or overcurrent to protect both module and load.
Budget Friendly Bulk Supply
Seven modules per pack reduce cost per unit for large scale prototyping.
We may earn a commission when you buy through this link, at no additional cost to you.
6. AMS1117-3.3 DC 4.75V-12V – Best for Large Quantities and Repairs
AMS1117-3.3 DC 4.75V-12V
Input 4.75V to 12V
Output 3.3V fixed
Max current 800mA
Operating temp -40 to 125C
This large pack supports extensive prototyping or production runs. It uses the standard AMS1117-3.3 LDO for stable output. A perfect rating confirms quality and reliability across all units.
Pros
- Fifteen units provide ample supply for many projects
- Wide operating temperature for harsh environments
- Plug and play three pin design simplifies use
- Perfect five star rating for quality consistency
- Overheat and overcurrent protection included
Cons
- Linear design dissipates more heat than switching
- Lower efficiency impacts battery life
We may earn a commission when you buy through this link, at no additional cost to you.
Protection features prevent damage during abnormal conditions. The wide temperature range suits industrial or automotive applications. Plug and play wiring reduces setup time for testing.
Linear regulators waste more heat under heavy load. Battery life may be shorter compared to switching options. Still it remains ideal for low noise and simple designs.
Choose this for workshops or labs needing many regulators. It covers repairs and prototyping with ease. Confirm your current draw stays under 800mA for best results.
Extended Temperature Range
Operates safely from -40C to 125C for industrial or outdoor use.
Large Pack Value
Fifteen units ensure you never run out during development phases.
We may earn a commission when you buy through this link, at no additional cost to you.
7. 5PCS 3.3V Mini Buck Converter Board – Best for Compact High Voltage Input
5PCS 3.3V Mini Buck Converter Board
Input 5V to 30V
Output 3.3V fixed
Max current 1.8A
Size 0.67×0.24×0.16 inches
This module handles higher inputs up to 30V in a tiny frame. It offers 1.8A output for more demanding loads. The lower rating hints at quality variation but many units perform well.
Pros
- Accepts input up to 30V for diverse power sources
- Ultra compact dimensions save significant board space
- High current output supports demanding peripherals
- Reverse polarity marking aids correct installation
- Stable output with low ripple
Cons
- Lower customer rating suggests possible inconsistencies
- Requires careful handling due to small size
We may earn a commission when you buy through this link, at no additional cost to you.
Compact size suits dense PCB designs. Reverse polarity marks reduce wiring mistakes. Low ripple and stable output keep sensitive chips safe from noise.
Handling small boards demands care during soldering. Quality can vary between batches so testing units is wise. For tight spaces this remains a strong option.
Buy this when space and high voltage input are critical. Ensure your setup supports the output current needs. Testing before integration helps avoid issues from faulty units.
High Input Voltage Support
Accepts up to 30V input expanding power source options significantly.
Space Saving Design
Miniature dimensions allow fitting into tight and compact enclosures.
We may earn a commission when you buy through this link, at no additional cost to you.
8. 5pcs 3.3V DC-DC Buck Converter – Best for Solar and Vehicle Applications
5pcs 3.3V DC-DC Buck Converter
Input 4.5V to 30V
Output 3.3V fixed
Max current 1.8A peak
Ready for Arduino Raspberry Pi
This converter suits solar panels and vehicle power systems. It handles inputs up to 30V while delivering steady 3.3V. Each unit undergoes testing before shipping for consistent quality.
Pros
- Wide input from 4.5V to 30V covers many sources
- High peak current for demanding loads
- Tested units ensure reliable operation
- Compact size for wearable and drone builds
- Compatible with popular microcontroller platforms
Cons
- Peak current not continuous for long durations
- Requires soldering for permanent setups
We may earn a commission when you buy through this link, at no additional cost to you.
High peak current supports peripherals needing bursts of power. Compact size fits wearables or drones easily. Soldering wires is straightforward for permanent installations.
Continuous current may be less than peak values. Soldering is necessary rather than pin connectors. These trade offs suit most DIY and maker applications.
Select this for off grid or automotive projects. It provides clean stable power for MCUs. Verify load requirements stay within continuous limits for best results.
Wide Input Range for Diverse Power
Handles 4.5V to 30V inputs from batteries or vehicle systems.
Pre Tested Quality Assurance
Each module is tested before shipping to ensure reliable performance.
We may earn a commission when you buy through this link, at no additional cost to you.
9. 10PCS 5V to 3.3V DC-DC – Best for Adjustable Voltage Limits
10PCS 5V to 3.3V DC-DC
Input 4.5V to 7V
Output 3.3V fixed
Max current 800mA
Start limit voltage adjustable
This pack supports bulk prototyping with reliable modules. Adjustable start limit helps manage inrush current. A perfect rating shows consistent quality across the units.
Pros
- Ten units offer ample supply for testing
- Adjustable start limit voltage adds flexibility
- Perfect rating indicates reliable performance
- Simple wiring for quick prototyping
- Overcurrent protection prevents damage
Cons
- Input range limited to 7V
- Current limited to 800mA maximum
We may earn a commission when you buy through this link, at no additional cost to you.
Protection features protect circuits from overcurrent. The simple design allows fast connections. It works well for Arduino or ESP32 projects.
Input limited to 7V means it is not for high voltage sources. Current limit restricts use to low power devices. These limits fit many common electronics designs.
Buy this for flexible voltage limit needs. The ten pack ensures spares for experiments. Confirm your power source stays within the voltage range.
Adjustable Start Limit Voltage
Customizes start behavior to protect loads from inrush current.
Bulk Supply for Prototyping
Ten units reduce cost per project and provide backups.
We may earn a commission when you buy through this link, at no additional cost to you.
10. 3.3V Regulator 6pcs Mini Reducer – Best for High Current and Compact Size
3.3V Regulator 6pcs Mini Reducer
Input 4.5V to 24V
Output 3.3V fixed
Max current 1.8A
Size 17x11x3.6mm
This module delivers 1.8A in a tiny footprint. It earns a 4.9 rating for reliability and performance. It combines high output with compact size ideal for aircraft or IoT.
Pros
- Highest current output of 1.8A
- Smallest dimensions among high current options
- Wide input from 4.5V to 24V
- Very high customer rating of 4.9 stars
- Switching frequency ensures clean power
Cons
- Inductive loads need additional protection
- Smaller pins require careful soldering
We may earn a commission when you buy through this link, at no additional cost to you.
Low ripple and high switching frequency keep power stable. The small size suits tight layouts. Protection for inductive loads ensures safe operation.
Soldering requires care due to small pads. Inductive components need protection to avoid noise. Despite these the module excels in performance.
Choose this for high current and space constrained designs. It fits drones and portable devices easily. Verify soldering skills to ensure strong connections.
Highest Current in Smallest Frame
Delivers 1.8A output while occupying minimal board space.
High Reliability Rating
4.9 star rating confirms consistent quality across batches.
We may earn a commission when you buy through this link, at no additional cost to you.
Buying Guide – How to Choose the Best 5V to 3V Voltage Regulator
Choosing the right regulator requires balancing input voltage range output current size and efficiency. This guide outlines key factors to ensure stable power for your electronics.
Input Voltage Range
Ensure the regulator accepts your source voltage. Modules handling up to 24V or 30V suit batteries or vehicle power. Lower ranges like 12V fit standard adapters.
Check your supply voltage stays within the input limits to avoid damage or inefficiency.
Output Current Capacity
Match the regulator current rating to your load. Microcontrollers may need 500mA while sensors need less. Higher current modules handle peripherals or multiple devices.
Select a module with headroom above your max load for stable performance.
Regulator Type
Buck converters are efficient for higher inputs and current. Linear regulators like AMS1117 suit low noise needs. Decide based on efficiency and noise tolerance.
Choose buck for efficiency and linear for quiet power.
Size and Footprint
Compact modules save space in portable or embedded designs. Check dimensions before choosing. Mini360 sizes fit tight layouts easily.
Measure your PCB to confirm fit before purchase.
Protection Features
Overheat and overcurrent protection prevent damage. Inductive loads need additional components like diodes. Look for built in protections.
Safety features protect both regulator and connected devices.
Package Quantity
Bulk packs offer better value for prototyping. Ensure you need multiple units. Single units may suit repairs.
Buy in packs to reduce cost per unit.
Mounting and Installation
Most modules require soldering. Pin headers simplify connections. Verify tools and skill level.
Ensure you can solder connections securely.
Efficiency and Heat
Switching regulators dissipate less heat. Linear types get warm under load. Consider thermal management.
Plan for heat dissipation in enclosed spaces.
How to Use and Care for Your 5V to 3V Voltage Regulator
Connect input voltage within the specified range to avoid damage. Use power supplies that match the module limits.
Ensure output connections stay below max current. Add heat sinks or fans if running near limits.
Protect inductive loads with diodes or capacitors to prevent voltage spikes damaging the regulator.
Frequently Asked Questions
Can I use a 5V regulator for a 3.3V system?
No use a regulator designed for 3.3V output to avoid damaging components. A 5V output exceeds safe limits for 3.3V logic. Select a buck or linear regulator with 3.3V fixed output for safe operation.
Do I need a heat sink for these regulators?
Heat sinks are usually unnecessary for low currents. Higher loads may cause heat buildup. Check if the module runs hot and consider adding airflow or a heat sink if needed.
What is the difference between buck and linear regulators?
Buck converters switch to drop voltage efficiently while linear regulators dissipate heat. Buck units suit higher inputs and currents. Linear types provide cleaner output with less noise.
How do I protect motors from damaging the regulator?
Add a diode across motor terminals to absorb voltage spikes. Capacitors also help filter noise. These components prevent reverse voltage from affecting the regulator or microcontroller.
Can I use these regulators with solar panels?
Yes modules with wide input ranges like up to 30V suit solar panels. Ensure output voltage stabilizes at 3.3V. Use capacitors to smooth voltage fluctuations from solar sources.
What wire size should I use for connections?
Use thin insulated wires for low current modules. Thicker wires suit higher currents to prevent voltage drop. Ensure connections are secure and insulated to avoid shorts.
Final Thoughts on Choosing the Best 5V to 3V Voltage Regulator
These ten regulators cover diverse needs from compact to high current. Select based on input range output needs and size. Budget and protection features also matter.
Prioritize input voltage matching and current capacity. Ensure heat management and protection features suit your load. Verify soldering and mounting requirements.
Prices and availability change frequently so check current listings before buying. Confirm details on the product page for accurate specs and stock.