LM2937IMP-12

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LM2937IMP-12

IC REG LIN 12V 500MA SOT-223-4

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Thông số kỹ thuật

Part Status Obsolete
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 26V
Voltage - Output (Min/Fixed) 12V
Voltage Dropout (Max) 1V @ 500mA
Current - Output 500mA
Current - Quiescent (Iq) 10 mA
Protection Features Mirror-Image Insertion, Over Temperature, Short Circuit, Transient Voltage
Operating Temperature -40°C ~ 85°C (TJ)
Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA
Supplier Device Package SOT-223-4
Base Product Number LM2937
Current - Supply (Max) 20 mA

Tổng quan

Description

The LM2937IMP-12 is a low-dropout (LDO) voltage regulator designed to provide a stable output voltage of 12V with a maximum output current of 1A. It features a built-in thermal shutdown and current limiting for protection against overcurrent conditions. The device operates with an input voltage range of 14V to 40V, making it suitable for various applications, including automotive and industrial systems.
Key specifications include a dropout voltage of approximately 0.5V at full load, a low quiescent current, and high ripple rejection, which ensures stable operation even under varying load conditions. The LM2937IMP-12 also supports a wide temperature range, making it reliable in different environmental conditions.
This device is housed in a TO-220 package, facilitating heat dissipation and ease of integration into circuit designs. Overall, the LM2937IMP-12 is ideal for applications requiring a reliable, efficient, and compact power supply solution.

Features

The LM2937IMP-12 is a voltage regulator designed to provide a stable 12V output. Key features include:
- Input Voltage Range: Accepts input voltages up to 26V.
- Output Current: Provides up to 1A of output current.
- Low Dropout Voltage: Features a low dropout voltage of approximately 0.5V at 1A load, allowing efficient operation.
- Thermal Shutdown: Equipped with thermal shutdown protection to prevent overheating.
- Short-Circuit Protection: Includes current limiting to protect against short circuits.
- Package: Available in a TO-220 package for easy mounting and heat dissipation.
- Temperature Range: Operates over a temperature range of -40°C to +125°C.
- Low Noise: Designed for low output noise, making it suitable for sensitive applications.
This regulator is typically used in automotive, telecommunications, and industrial applications where a reliable power supply is required.

Package

The LM2937IMP-12 is packaged in an Integrated Circuit (IC) format, specifically in a TO-220 package. This package type is designed for efficient heat dissipation and is commonly used for voltage regulators and other power-related applications.

Pinout

The LM2937IMP-12 is a voltage regulator with a pin count of 5. Its primary function is to provide a stable output voltage of 12V while maintaining high efficiency and low dropout voltage.
Pin Configuration:
1. Input (Pin 1): Connects to the unregulated input voltage source.
2. Output (Pin 2): Provides the regulated 12V output.
3. Ground (Pin 3): Common ground connection.
4. Adjust (Pin 4): Used for adjustable versions but is typically not connected in fixed-output configurations.
5. Enable (Pin 5): Used to enable or disable the regulator.
This device is suitable for various applications, including automotive and general-purpose power supply systems. It ensures a reliable power source for sensitive electronic components.

Manufacturer

The LM2937IMP-12 is manufactured by Texas Instruments, Inc. (TI), a prominent American technology company that designs and manufactures semiconductors and various integrated circuits. Founded in 1930, Texas Instruments is well-known for its development of analog and embedded processing products, serving a wide range of industries including automotive, industrial, communications, and consumer electronics. TI is recognized for its innovation in the field of electronics and has a significant global presence, providing solutions that enable a variety of applications from simple consumer gadgets to complex industrial systems.

Application

The LM2937IMP-12 is a low-dropout voltage regulator commonly used in automotive applications, battery-operated devices, and portable electronics. It provides a stable 12V output and is ideal for powering microcontrollers, sensors, and communication devices in systems requiring precise voltage regulation. Its features make it suitable for applications needing low noise and high efficiency.

Equivalent

Equivalent products to the LM2937IMP-12 voltage regulator include the LM317, AM1117-12, and MIC29302. Additionally, you can consider the LM2940-12 and LD1117-12. Always verify specifications like output current, dropout voltage, and package type for compatibility with your specific application.

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