March 16, 2024

AMS1117-3.3 UMW

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About

The AMS1117-3.3 UMW is a state-of-the-art low dropout voltage regulator designed to cater to a broad spectrum of applications requiring a reliable power solution. Engineered for stability and efficiency, this compact component ensures your devices operate at peak performance, enhancing both longevity and reliability.

Features

The AMS1117-3.3 is a high-performance, low dropout (LDO) voltage regulator, optimized for reliability and efficiency in a wide range of applications. Designed with the latest semiconductor technology, it offers a stable and precise 3.3V output, ideal for powering sensitive electronic devices. Below are its standout features:

Precision Voltage Regulation

Stable 3.3V Output: Delivers a constant 3.3V, essential for sensitive electronics, ensuring optimal performance and stability.
High Accuracy: Features tight output tolerance, ensuring the output voltage remains precise under various load conditions.

Low Dropout Performance

Low Dropout Voltage: Operates effectively with a very small input-to-output differential, minimizing power loss and improving efficiency, which is critical for battery-powered applications.

High Efficiency

Reduced Power Dissipation: Its efficient design leads to lower heat generation, extending the life of the device and reducing the need for additional cooling.

Versatile and Robust Design

Wide Input Voltage Range: Accommodates a broad range of input voltages, making it suitable for diverse applications.
Thermal Overload Protection: Incorporates built-in thermal shutdown to protect the device and your application from damage due to overheating.
Current Limiting: Features output current limiting to safeguard the regulator and downstream components from damage due to overcurrent conditions.

Compact and Flexible Packaging

Small Footprint: The SOT-223 package is compact, saving space on PCBs and making it ideal for high-density installations.
Ease of Integration: Designed for straightforward incorporation into various circuit designs, requiring minimal external components.

Applications

The AMS1117-3.3 is a versatile low dropout voltage regulator that finds applications in a variety of electronic devices and systems due to its reliable performance, stable 3.3V output, and efficiency. Here’s a closer look at its applications across different sectors:

Consumer Electronics

Mobile Devices: Used in smartphones, tablets, and other portable gadgets to provide stable power, enhancing battery life and device reliability.
Personal Computers: Integral in motherboards and peripheral devices to ensure smooth operation and power stability.
Audio/Video Equipment: Powers media players, speakers, and other A/V devices, ensuring clear and consistent performance.

Industrial and Automation

Sensors and Control Systems: Regulates power supply to sensors and actuators in industrial automation systems, maintaining accuracy and reliability.
Power Supplies: Utilized in the power management circuits of industrial-grade power supplies to ensure stable output for critical operations.
LED Lighting: Powers LED drivers for industrial lighting solutions, ensuring consistent brightness and longevity.

Telecommunications

Network Devices: Found in routers, switches, and modems to regulate power and ensure uninterrupted network connectivity.
Wireless Communication Equipment: Powers devices like RF transceivers and base stations for stable wireless communications.

Automotive Electronics

Dashboard Instruments: Regulates power for instruments and displays, ensuring accurate readings and functionality.
Entertainment Systems: Powers audio and video systems, providing stable operation for in-car entertainment.
Engine Control Units (ECUs): Used in the power regulation circuits of ECUs for reliable engine performance and diagnostics.

Medical Devices

Portable Medical Equipment: Powers handheld medical devices, ensuring reliable performance for diagnostics and patient monitoring.
Laboratory Instruments: Regulates power in lab equipment, maintaining accuracy in measurements and tests.

Energy Systems

Solar Power Converters: Utilized in the power regulation circuits of solar converters, ensuring efficient energy conversion and stable output.
Battery Management Systems: Regulates charging circuits in battery management systems for safer and more efficient battery charging.

The AMS1117-3.3 UMW’s ability to provide a stable and reliable 3.3V output makes it an ideal component for these applications, ensuring the efficient operation of a wide range of electronic devices and systems.

Advantages

The AMS1117-3.3, a popular low dropout (LDO) voltage regulator, offers a range of advantages for various electronic applications due to its design and performance characteristics. Here are some of the key advantages:

High Efficiency:

Low Dropout Voltage: The AMS1117-3.3 UMW operates efficiently with a very low dropout voltage, which means it can regulate voltage close to the input voltage while minimizing power loss. This feature is particularly beneficial in battery-powered devices, where maximizing battery life is crucial.

Versatility and Compatibility:

Fixed 3.3V Output: The regulator provides a stable 3.3V output, a common and often necessary voltage for digital circuits, microcontrollers, and other sensitive electronic components.
Wide Input Voltage Range: It supports a broad range of input voltages, making it versatile for different power supply scenarios, from batteries to AC adapters.

Reliability and Performance:

Thermal Overload Protection: The device includes built-in thermal overload protection that shuts down the regulator to prevent damage if the temperature exceeds safe operating limits.
Current Limiting: Inbuilt current limiting protects the regulator and the downstream components from damage due to excessive current draw, enhancing the circuit’s overall safety and longevity.
Low Noise: This LDO regulator offers low output noise, which is crucial for noise-sensitive applications such as audio devices and precision measurement instruments.

Ease of Use and Integration:

Minimal External Components Required: The AMS1117-3.3 UMW can function effectively with only two external capacitors (input and output), simplifying circuit design and reducing overall component count.
Standard Package and Footprint: Its availability in a SOT-223 package makes it easy to integrate into a wide variety of PCB designs, including those with space constraints.

Cost-Effectiveness:

Affordability: The AMS1117 series, including the AMS1117-3.3 UMW, is known for providing reliable voltage regulation at a low cost, making it an attractive choice for projects with tight budgets.

Broad Application Range:

Due to these advantages, the AMS1117-3.3 UMW is suitable for a wide array of applications, from consumer electronics and portable devices to industrial controls and automotive systems, where stable voltage, reliability, and efficiency are paramount.

In summary, the AMS1117-3.3 UMW combines efficiency, reliability, and versatility with ease of use, making it an excellent choice for designers and engineers looking for a dependable voltage regulation solution.

Specifications

Product Attribute	Attribute Value
Product Category:	LDO Voltage Regulators
Manufacturer:	UMW
Series:	–
Packaging:	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®
Part Status:	Active
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage – Input (Max):	12V
Voltage – Output (Min/Fixed):	3.3V
Voltage – Output (Max):	–
Voltage Dropout (Max):	1.3V @ 1A
Current – Output:	1A
Current – Quiescent (Iq):	10 mA
PSRR:	75dB (120Hz)
Control Features:	Current Limit
Protection Features:	Over Temperature
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-261-4, TO-261AA
Supplier Device Package:	SOT-223-3L