Product Overview: Texas Instruments LM1117MPX-5.0

Introduction to Texas Instruments

Texas Instruments (TI) is a global leader in developing semiconductor technologies, producing a vast range of electronic components from microcontrollers to analog and digital circuits. The company is renowned for providing high-quality, innovative products across industries including automotive, industrial, consumer electronics, and telecommunications. Texas Instruments consistently drives advances in technology, supporting engineers and designers with cutting-edge components and solutions.

Product Description: LM1117MPX-5.0

The LM1117MPX-5.0 is a fixed output, low-dropout (LDO) linear voltage regulator from Texas Instruments. This device provides a steady 5.0V output from a higher input voltage, delivering up to 800 mA of current with high stability and minimal output noise. The LM1117 series is widely used in power management systems because of its ease of use, reliability, and efficiency in maintaining a regulated output voltage under varying load conditions.

Designed for applications requiring a regulated 5.0V power source, the LM1117MPX-5.0 offers a simple solution for powering logic circuits, microcontrollers, and various other devices in embedded systems. With its low-dropout voltage of typically 1.1V at full load, this device maintains performance even with a minimal difference between input and output voltages, making it an ideal solution for battery-powered devices.

Key Features of LM1117MPX-5.0

1. Fixed Output Voltage: Provides a reliable 5.0V output.
2. High Output Current Capability: Supports up to 800 mA of load current.
3. Low Dropout Voltage: With a typical dropout of only 1.1V, the device operates efficiently even with a low difference between input and output voltages.
4. Thermal Overload Protection: Automatically shuts down to prevent damage when overheating.
5. Internal Short-Circuit Current Limit: Provides added safety by protecting the device from excessive current draw.
6. Stable with Various Capacitors: Designed to work effectively with different types of capacitors, simplifying design.
7. Standard Package: Available in an easy-to-mount SOT-223 package.
8. High Efficiency: Designed for minimal power loss, enhancing the overall energy efficiency of the system.

Detailed Specifications of LM1117MPX-5.0

Applications

The LM1117MPX-5.0 is versatile and suitable for a variety of applications:

1. Embedded Systems: Provides a stable 5.0V supply for powering microcontrollers and logic circuits.
2. Consumer Electronics: Used in applications like routers, set-top boxes, and gaming consoles where a steady voltage supply is crucial.
3. Battery-Powered Devices: With its low-dropout design, it efficiently uses power sources close to the output voltage, extending battery life.
4. Automotive Electronics: Suitable for providing regulated power in automotive systems.
5. Communication Systems: Commonly used in networking and telecommunication devices that require consistent voltage levels.
6. Industrial Control Systems: Delivers stable power in harsh environments where precise voltage regulation is necessary.

10 Frequently Asked Questions (FAQs)

1. What is the input voltage range of the LM1117MPX-5.0?

   • The input voltage can go up to 20V, making it suitable for various applications with higher input voltages.

2. What is the dropout voltage of this regulator?

   • The typical dropout voltage is 1.1V at full load, meaning it can maintain 5.0V output with input voltages as low as 6.1V.

3. Is the LM1117MPX-5.0 protected against short circuits?

   • Yes, it features an internal short-circuit current limit to protect against excessive current draw.

4. Does it have thermal shutdown protection?

   • Yes, it includes thermal overload protection, which shuts down the regulator if it overheats, preventing damage.

5. Can I use the LM1117MPX-5.0 with ceramic capacitors?

   • Yes, the device is stable with different types of capacitors, including ceramic capacitors.

6. What is the maximum output current the LM1117MPX-5.0 can handle?

   • The device can provide up to 800 mA of output current.

7. Is the LM1117MPX-5.0 suitable for battery-powered applications?

   • Yes, its low-dropout design makes it ideal for applications where efficiency and battery life are important.

8. How accurate is the 5.0V output?

   • The regulator has high accuracy, with load and line regulation of 0.2%, ensuring a stable 5.0V output.

9. What is the operating temperature range of this device?

   • The LM1117MPX-5.0 operates from 0°C to +125°C, making it suitable for various environmental conditions.

10. What package does the LM1117MPX-5.0 come in?

    • It is available in an SOT-223 package, which is compact and easy to mount on PCBs.

Decoding the Part Number: LM1117MPX-5.0

Understanding the part number can help clarify the characteristics of the device:

• LM: Denotes that it is a standard linear regulator series from Texas Instruments.
• 1117: Indicates the specific series in the low-dropout (LDO) regulator category.
• MP: Refers to the SOT-223 package, a compact surface-mount package.
• X: Refers to tape and reel packaging for automated assembly.
• 5.0: Specifies the fixed output voltage of the device, in this case, 5.0V.

Manufacturer Overview: Texas Instruments (TI)

Texas Instruments is a longstanding leader in the semiconductor industry, with a legacy of innovation that spans nearly a century. Known for its robust quality standards and cutting-edge products, TI offers a broad portfolio that serves applications ranging from basic electronics to advanced embedded systems. Texas Instruments consistently provides strong technical support, comprehensive documentation, and reliable quality in its components, making it a trusted partner for engineers worldwide.

Additional Information for Engineers

For those implementing the LM1117MPX-5.0 in their designs, it's essential to consider factors like heat dissipation and proper PCB layout. The SOT-223 package can handle high power loads, but ensuring adequate ventilation and, if necessary, using heat sinks can improve the device’s performance under high load conditions. Additionally, the device's compatibility with various capacitors provides flexibility in design, allowing engineers to optimize the regulator’s stability and response time based on application needs.

Conclusion

The LM1117MPX-5.0 from Texas Instruments is a robust, reliable, and efficient linear voltage regulator designed to provide a stable 5.0V output across various applications. Its high current capacity, low-dropout voltage, and protective features make it a go-to component for applications demanding reliable power management. With its wide input range, the LM1117MPX-5.0 can handle diverse power supply conditions, while Texas Instruments’ reputation assures that it meets industry standards for quality and performance. Whether for consumer electronics, embedded systems, or industrial control, the LM1117MPX-5.0 is a practical, cost-effective choice for regulated power supply needs.

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