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LM2937ET-5.0

Name: LM2937ET-5.0
Rating: 4.7 (12 reviews)

IC REG LINEAR 5V 500MA TO220-3

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Mfr。パート #LM2937ET-5.0
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仕様

Part Status	Obsolete
Output Configuration	Positive
Output Type	Fixed
Number of Regulators	1
Voltage - Input (Max)	26V
Voltage - Output (Min/Fixed)	5V
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 ~ 125°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-220-3
Supplier Device Package	TO-220-3
Base Product Number	LM2937
Current - Supply (Max)	20 mA

概要

Description

The LM2937ET-5.0 is a low-dropout (LDO) voltage regulator designed to deliver a stable output voltage of 5.0V. It is part of the LM2937 series and is particularly useful for applications requiring a regulated power supply with minimal voltage drop, making it ideal for battery-powered devices.
Key features include a maximum output current of 1A, a dropout voltage of around 0.5V at full load, and thermal overload protection. The LM2937ET-5.0 also includes short-circuit protection and is housed in a TO-220 package, allowing for efficient heat dissipation.
This regulator operates over a wide input voltage range, typically from 6V to 30V, making it versatile for various applications. Its low quiescent current ensures energy efficiency, while its stability with ceramic capacitors enhances performance in noise-sensitive environments.
Overall, the LM2937ET-5.0 is suitable for consumer electronics, automotive applications, and other scenarios where reliable voltage regulation is essential.

Features

The LM2937ET-5.0 is a voltage regulator designed to provide a stable output voltage of 5V. Key features include:
1. Input Voltage Range: Operates with input voltages from 5.5V to 26V.
2. Output Current: Capable of supplying up to 1A output current.
3. Low Dropout Voltage: Offers low dropout performance, making it efficient for battery-powered applications.
4. Thermal Protection: Includes built-in thermal shutdown to prevent overheating.
5. Short-Circuit Protection: Features current limiting to protect against short-circuit conditions.
6. High Line and Load Transient Response: Ensures stable output during sudden changes in load or input voltage.
7. Compact Package: Available in an 8-lead TO-220 or surface-mount package, suitable for space-constrained designs.
These features make the LM2937ET-5.0 ideal for applications such as automotive, industrial devices, and low-voltage power supplies.

Package

The LM2937ET-5.0 comes in an TO-220 package type. This package is designed for easy heatsinking and efficient thermal management, suitable for voltage regulation applications.

Pinout

The LM2937ET-5.0 is a low dropout voltage regulator with a pin count of 5. Its pin functions are as follows:
1. Input (Pin 1): This pin receives the input voltage, which must be higher than the output voltage by at least the dropout voltage.
2. Ground (Pin 2): This pin is connected to the circuit ground.
3. Output (Pin 3): This pin provides the regulated output voltage, which is fixed at 5.0V.
4. Adjustment (Pin 4): This pin is used for output voltage adjustment when using external resistors, though in this fixed version, it is typically not used.
5. Protection (Pin 5): This pin connects to the internal protection circuitry, which includes thermal shutdown and current limiting features.
The LM2937ET-5.0 is commonly used in various applications requiring a stable 5V output with low dropout voltages.

Manufacturer

The LM2937ET-5.0 is manufactured by Texas Instruments (TI), a global semiconductor company headquartered in Dallas, Texas. Texas Instruments specializes in designing and manufacturing a wide range of electronics components, particularly analog and embedded processing devices. The company is known for its innovation in the semiconductor industry, offering products used in various applications such as automotive, industrial, communications, and consumer electronics. TI is a prominent player in developing integrated circuits (ICs) and has a strong reputation for quality and reliability in its products.

Application

The LM2937ET-5.0 is a low-dropout voltage regulator designed for applications requiring a stable 5V output. Common application areas include automotive electronics, battery-powered devices, power management systems, and telecommunications equipment. It is suitable for use in microcontroller circuits, sensors, and other electronic devices needing reliable voltage regulation under varying load conditions.

Equivalent

Equivalent products to the LM2937ET-5.0 include the LM1117-5.0, LP2950-5.0, and AMS1117-5.0. These voltage regulators provide similar functionality and output voltage, suitable for low-dropout applications. Ensure compatibility with your circuit's requirements by checking specifications such as current ratings and thermal performance.