LM1117MPX-3.3

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LM1117MPX-3.3

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IC REG LIN 3.3V 800MA SOT-223-4

  • FabricanteTexas Instruments

  • Peça do Fabricante #LM1117MPX-3.3

  • Em Estoque1265

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Especificações

Atributo Valor
Series LM1117-3.3
Part Status Obsolete
Base Product Number LM1117
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 15V
Voltage - Output (Min / Fixed) 3.3V
Voltage Dropout (Max) 1.2V @ 800mA
Current - Output 800mA
Current - Quiescent (Iq) 5 mA
Current - Supply (Max) 10 mA
PSRR 75dB (120Hz)
Protection Features Over Current, Over Temperature
Operating Temperature 0°C ~ 125°C
Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA
Supplier Device Package SOT-223-4
Packaging Cut Tape (CT), Tape & Reel (TR)

Visão Geral

Description

The LM1117MPX-3.3 is a fixed voltage regulator part of the LM1117 series, designed to provide a stable 3.3V output from a higher voltage input. It is commonly used in electronics to power microcontrollers, sensors, and other circuits requiring a constant 3.3V supply. The LM1117 offers features such as low dropout voltage, typically around 1.2V at full load, which makes it efficient for low-voltage applications. It can deliver up to 800mA of output current, making it suitable for powering moderate loads.
This regulator is available in surface-mount packages, like the SOT-223, providing flexibility for compact PCB designs. The LM1117MPX-3.3 also includes internal current limiting, thermal shutdown, and safe area protection, enhancing its reliability and durability in various applications. It operates efficiently over a wide temperature range, making it suitable for industrial, consumer, and telecommunications environments. Its ease of use and dependable performance make the LM1117MPX-3.3 a popular choice among engineers for designing stable power supply solutions.

Equivalent

The LM1117MPX-3.3 is a low dropout voltage regulator. Equivalent products include:
1. AMS1117-3.3 by Advanced Monolithic Systems
2. LD1117-3.3 by STMicroelectronics
3. NCP1117-3.3 by ON Semiconductor
4. MIC39100-3.3 by Microchip Technology
5. TLV1117-33 by Texas Instruments
These alternatives offer similar features and specifications but verify their datasheets for pin compatibility and performance differences.

Features

The LM1117MPX-3.3 is a low dropout voltage regulator designed to provide a fixed output voltage of 3.3V. Key features include:
1. Output Current: It can supply up to 800mA of output current.
2. Low Dropout Voltage: Typically 1.2V at full load, making it efficient for low voltage operations.
3. Stability: Requires only a 10µF tantalum or aluminum electrolytic capacitor at the output for stability.
4. Overcurrent Protection: Includes internal current limiting and thermal shutdown to protect against overload conditions.
5. Precision: Features a ±1% output voltage tolerance.
6. Operating Temperature Range: Suitable for a wide temperature range from -40°C to +125°C.
7. Package: Available in a TO-252 surface-mount package, facilitating compact design layouts.
These features make the LM1117MPX-3.3 suitable for applications requiring reliable voltage regulation with moderate output current and efficient thermal management.

Pinout

The LM1117MPX-3.3 is a voltage regulator with a fixed output voltage of 3.3V. It is commonly used to provide a stable 3.3V power supply from a higher input voltage. The device comes in a SOT-223 package, typically featuring three pins. Here's a brief overview of the pin configuration and function:
1. Pin 1 (GND or Adjust): This is the ground pin for the fixed voltage version. In adjustable versions of the LM1117, this would be used to set the output voltage.
2. Pin 2 (Output): This pin provides the regulated 3.3V output.
3. Pin 3 (Input): The input pin where the unregulated input voltage is applied. This voltage must be higher than the desired output voltage to ensure proper regulation.
The LM1117MPX-3.3 is often used in electronics for powering microcontrollers and other digital ICs that operate at 3.3V, ensuring they receive a stable voltage for reliable operation.

Manufacturer

The LM1117MPX-3.3 is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. Founded in 1930 and headquartered in Dallas, Texas, USA, TI is known for its innovation in the electronics industry.
The company develops products for various applications, including analog and embedded processing, and serves industries such as automotive, industrial, personal electronics, communications, and enterprise systems. Texas Instruments is a leader in the semiconductor sector, providing solutions that enhance the performance and efficiency of electronic products and systems across the globe.

Application

The LM1117MPX-3.3 is a low-dropout voltage regulator with a fixed 3.3V output, commonly used in various applications. It is suitable for powering microcontrollers, microprocessors, and digital circuits that require a stable 3.3V supply. The component is often used in consumer electronics, networking equipment, and communication devices. It can also be found in battery-powered systems, where efficient power regulation is essential for extending battery life. Additionally, its low dropout voltage makes it useful in applications requiring efficient conversion from a slightly higher input voltage to 3.3V, enhancing energy efficiency.

Package

The LM1117MPX-3.3 is a low dropout voltage regulator available in a SOT-223 package. This package type is designed for surface mounting and is commonly used in applications requiring efficient thermal management and compact form factor.

Frequently Asked Questions


Q: What is the maximum input voltage for the LM1117MPX-3.3?
A: The maximum input voltage is 15V, ensuring reliable operation within this range for fixed 3.3V output.


Q: What is the dropout voltage at full load?
A: The maximum dropout voltage is 1.2V at 800mA output current, suitable for low headroom designs.


Q: Is the output voltage fixed or adjustable?
A: Output type is fixed at 3.3V, requiring no external resistor divider for voltage setting.


Q: What protection features does this regulator include?
A: It includes over current and over temperature protection, enhancing system reliability under fault conditions.


Q: What is the operating temperature range?
A: The operating temperature range is 0°C to 125°C, suitable for commercial and industrial environments.


Q: What is the quiescent current consumption?
A: Typical quiescent current is 5 mA, with a maximum supply current of 10 mA, offering moderate efficiency.


Q: Can this device supply 800mA continuously?
A: Yes, it can deliver up to 800mA continuous output current with proper thermal management.


Q: What package does the LM1117MPX-3.3 come in?
A: It is offered in a SOT-223-4 surface mount package (TO-261AA), optimized for compact PCB designs.


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