LM2937IMP-2.5

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LM2937IMP-2.5

+Nomenclature

IC REG LIN 2.5V 500MA SOT-223-4

  • FabricantTexas Instruments

  • Pièce fabricant #LM2937IMP-2.5

  • En stock4050

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Spécifications

Attribut Valeur
Part Status Obsolete
Base Product Number LM2937
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 26V
Voltage - Output (Min/Fixed) 2.5V
Voltage Dropout (Max) 1V @ 500mA
Current - Output 500mA
Current - Quiescent (Iq) 10 mA
Current - Supply (Max) 20 mA
Protection Features Mirror-Image Insertion, Over Temperature, Short Circuit, Transient Voltage
Operating Temperature -40°C ~ 85°C (TJ)
Mounting Type Surface Mount
Package TO-261-4, TO-261AA
Supplier Device Package SOT-223-4
Packaging Tape & Reel (TR)

Présentation

Description

The LM2937IMP-2.5 is a low-dropout (LDO) voltage regulator designed to provide a stable 2.5V output with a maximum output current of 500 mA. It is part of the LM2937 series, known for its efficient performance with low dropout voltage, typically around 0.5V at full load. This makes it suitable for applications where input and output voltage differentials are minimal.
The device offers internal current limiting and thermal shutdown features to protect against overcurrent conditions and overheating, enhancing reliability and safety in various applications. Its compact SOT-223 package facilitates easy integration into space-constrained designs. The LM2937IMP-2.5 is ideal for use in battery-powered devices, microprocessor systems, and general-purpose power supply applications, providing consistent performance with minimal external components.
Furthermore, the regulator is designed to operate over a wide input voltage range, typically from about 4.75V to 26V, making it versatile for numerous electronic projects. Its stability and efficiency contribute to its suitability for industrial, automotive, and consumer electronics applications.

Equivalent

The LM2937IMP-2.5 is a low dropout (LDO) voltage regulator providing a fixed output of 2.5V. Equivalent products could include:
1. LM1117-2.5 by Texas Instruments: A similar LDO regulator with a 2.5V output.
2. MIC2937A-2.5WT by Microchip Technology: Another LDO with comparable specifications.
3. NCP1117-2.5 by ON Semiconductor: Offers similar functionality and output voltage.
Ensure to verify the specifications like current rating, dropout voltage, and package type for compatibility.

Features

The LM2937IMP-2.5 is a low-dropout voltage regulator designed to provide a 2.5V output with high efficiency and reliability. Key features include:
1. Output Voltage: Fixed 2.5V output.
2. Output Current: Capable of delivering up to 500 mA.
3. Low Dropout Voltage: Typically around 0.5V at full load, ensuring efficient operation.
4. Thermal Protection: Integrated thermal shutdown to prevent overheating.
5. Short-Circuit Protection: Built-in current limiting to safeguard against overcurrent conditions.
6. Reverse Polarity Protection: Protects against damage from incorrect input connections.
7. Wide Input Voltage Range: Operates effectively with input voltages up to 26V.
8. Low Quiescent Current: Reduces power consumption in standby mode.
9. Surface-Mount Package: Available in a small SOT-223 package, suitable for space-constrained applications.
These features make the LM2937IMP-2.5 ideal for applications requiring stable and efficient low-voltage regulation in compact designs, including automotive, industrial, and consumer electronics.

Pinout

The LM2937IMP-2.5 is a low dropout voltage regulator. It is designed to provide a stable 2.5V output voltage. This component is typically available in a SOT-223 surface-mount package, which is a 4-pin configuration. The pin functions are as follows:
1. Input (Pin 1): This pin is connected to the input voltage supply. It should be higher than the output voltage to ensure proper regulation.

2. Ground (Pin 2): This pin is the ground reference for both the input and output voltage. It is essential for completing the circuit.

3. Output (Pin 3): This is the regulated output voltage pin, providing a stable 2.5V output to the load.

4. NC (Pin 4): This pin is typically not connected and may be used for mechanical support.
The LM2937IMP-2.5 is designed for applications where space is limited and efficient voltage regulation is needed, with a dropout voltage of approximately 500 mV at 500 mA load current.

Manufacturer

The LM2937IMP-2.5 is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of electronic components, including analog and embedded processing chips. These components are used in various electronic systems, primarily in the industrial, automotive, personal electronics, and communications sectors. TI is known for its innovation in developing solutions that help pave the way for advancements in technology, ranging from consumer electronics to industrial applications. The company has a long history, being founded in 1930, and is headquartered in Dallas, Texas. With a focus on research and development, TI is a leader in the semiconductor industry and provides solutions that drive advancements in technology and electronics.

Application

The LM2937IMP-2.5 is a low-dropout (LDO) voltage regulator used to provide a stable 2.5V output. Its application areas include:
1. Consumer Electronics: Powering microcontrollers and digital circuits in devices like set-top boxes and handheld gadgets.
2. Automotive: Supplying stable voltage to electronic control units (ECUs) and sensors.
3. Telecommunications: Used in networking equipment to maintain voltage levels.
4. Industrial Automation: Powering sensors and control systems in industrial settings.
5. Computing: Providing regulated power for peripherals and components in computers and servers.
6. Portable Devices: Battery-powered applications that require efficient power regulation.
Its low-dropout feature makes it ideal for applications where space and thermal efficiency are important.

Package

The LM2937IMP-2.5 is packaged in a SOT-223 surface-mount package. This package type is commonly used for three-terminal regulators and allows for efficient thermal management in a compact form factor, suitable for applications requiring space-saving solutions on PCBs.

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