LM2941S

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LM2941S

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Specifications

Package Tube
ProductStatus Not For New Designs
OutputConfiguration Positive
OutputType Adjustable
NumberofRegulators 1
Voltage-Input(Max) 26V
Voltage-Output(Min/Fixed) 5V
Voltage-Output(Max) 20V
VoltageDropout(Max) 1V @ 1A
Current-Output 1A
Current-Quiescent(Iq) 10 mA
Current-Supply(Max) 15 mA
ControlFeatures Enable
ProtectionFeatures Over Temperature, Reverse Polarity, Short Circuit
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case TO-263-6, D²Pak (5 Leads + Tab), TO-263BA

Overview

Description

The LM2941S is a low-dropout voltage regulator from Texas Instruments, designed for applications requiring efficient power regulation. It provides a fixed or adjustable output voltage with a dropout voltage of typically 0.5V at full load, making it suitable for battery-powered devices. The regulator can deliver up to 1A of output current and features a wide input voltage range, typically from 5V to 26V.
Key features of the LM2941S include short-circuit protection, thermal shutdown, and safe area protection, which enhance its reliability and safety in various applications. It also offers low quiescent current, making it an energy-efficient choice for long-term use. The device is available in a TO-263 package, allowing for easy integration into existing circuits.
Applications for the LM2941S span automotive, industrial, and consumer electronics, where stable voltage regulation is critical. Its ability to handle high input voltages and deliver stable output makes it a versatile component in developing power supply solutions.

Features

The LM2941S is a low-dropout voltage regulator designed for applications requiring efficient output regulation. It features a wide input voltage range, typically between 5V and 20V, and can deliver an output current up to 1A. The device provides an adjustable output voltage, allowing for precision settings tailored to specific needs. It includes a low dropout voltage, usually around 0.5V at 1A load current, enhancing its efficiency in low voltage applications.
Key features include thermal shutdown protection, which prevents the device from overheating, and current limiting to safeguard against overcurrent conditions. The LM2941S also incorporates reverse battery and reverse transient protection, ensuring robust performance in automotive and other demanding environments. Its TO-263 surface-mount package facilitates easy integration into circuit designs.
Overall, the LM2941S is valued for its reliability, efficiency, and versatility, making it suitable for a wide range of power management applications.

Package

The LM2941S is a low dropout voltage regulator that is typically available in a TO-263 surface-mount package. This package type is known for its ability to handle significant power dissipation while being compact and suitable for various electronic applications.

Pinout

The LM2941S is a low-dropout voltage regulator featuring 5 pins. Here are the functions of each pin:
1. Pin 1 (Vout): This is the output pin where the regulated voltage is provided. It supplies power to the load.
2. Pin 2 (GND): The ground pin serves as the reference point for the regulator, providing a return path for input and output currents.
3. Pin 3 (Vin): The input pin is where the unregulated voltage is applied. The voltage at this pin should be higher than the desired output voltage to ensure proper regulation.
4. Pin 4 (Adjust): This pin allows for the adjustment of the output voltage. By connecting an external resistor network, the output voltage can be set to a specific value.
5. Pin 5 (Shutdown): The shutdown pin is used to disable the regulator, reducing the quiescent current to a few microamperes. When connected to ground, the regulator is active; applying a high-level voltage disables the output.
The LM2941S is commonly used in applications requiring efficient voltage regulation with minimal power loss.

Manufacturer

The LM2941S is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of electronic components. The company specializes in the development of analog and embedded processing products, which are essential for a variety of applications in industries such as automotive, industrial, personal electronics, communications, and enterprise systems. TI's products are used in numerous electronic devices and systems, providing functions such as power management, signal processing, and data conversion. As a leader in the semiconductor industry, Texas Instruments is known for its innovation and contribution to advancing technology.

Application

The LM2941S is a low-dropout voltage regulator used in various applications, including automotive electronics, industrial systems, and power management for microcontrollers and sensors. Its key features, such as a wide input voltage range and low dropout voltage, make it ideal for battery-powered devices and systems requiring efficient voltage regulation under varying input conditions. It is also used in telecommunications equipment and portable devices, where stable and reliable power supply is crucial. The device's adjustable output voltage capability further enhances its applicability in customized power management solutions.

Equivalent

Equivalent products to the LM2941S, which is a low-dropout voltage regulator, include:
1. LM2940 series
2. LT1085 series
3. MIC29300 series
4. MC33269 series
5. L4940 series
These alternatives offer similar functionality in terms of voltage regulation, output current, and low dropout characteristics. Always verify specific requirements like pin configuration and electrical characteristics to ensure compatibility.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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