LM2941T

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LM2941T

IC REG LINEAR POS ADJ 1A TO220-5

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  • Mfr。パート #LM2941T
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  • データシート LM2941T DataSheet
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仕様

Part Status Obsolete
Output Configuration Positive
Output Type Adjustable
Number of Regulators 1
Voltage - Input (Max) 26V
Voltage - Output (Min/Fixed) 5V
Voltage - Output (Max) 20V
Voltage Dropout (Max) 1V @ 1A
Current - Output 1A
Current - Quiescent (Iq) 10 mA
Current - Supply (Max) 15 mA
Control Features Enable
Protection Features Over Temperature, Reverse Polarity, Short Circuit
Operating Temperature -40°C ~ 125°C
Mounting Type Through Hole
Package / Case TO-220-5
Supplier Device Package TO-220-5
Base Product Number LM2941

概要

Description

The LM2941T is a low-dropout (LDO) voltage regulator designed to provide a stable output voltage with minimal input-output voltage differential. It typically delivers a regulated output of 5V and can supply up to 1A of load current. This device is particularly noted for its high power supply rejection ratio (PSRR), which minimizes the impact of input voltage fluctuations on the output voltage.
Key features include a low dropout voltage of about 0.5V at full load, thermal shutdown protection, and current limiting, ensuring safe and reliable operation. The LM2941T is ideal for battery-powered applications due to its efficiency and low quiescent current. Its typical applications include powering microcontrollers, sensors, and other low-voltage digital devices.
The package type (often found in TO-220 or TO-263) allows for easy integration into various designs. Overall, the LM2941T is a versatile and robust choice for applications requiring reliable voltage regulation with limited space and power constraints.

Features

The LM2941T is a low-dropout (LDO) voltage regulator designed for efficient voltage regulation in various applications. Key features include:
1. Input Voltage Range: Operates from 5V to 26V input voltage.
2. Output Voltage: Fixed output voltage options (e.g., 5V, 12V) or adjustable with external resistors.
3. Low Dropout Voltage: Typically 0.5V at full load, enabling efficient operation with minimal input-to-output voltage difference.
4. Output Current: Capable of providing a maximum output current of 1A.
5. Thermal Protection: Includes thermal shutdown to prevent damage under overload conditions.
6. Short-Circuit Protection: Offers short-circuit protection to safeguard the device and connected loads.
7. Low Quiescent Current: Low standby power consumption, making it suitable for battery-powered applications.
8. Noise Performance: Provides good power supply rejection ratio (PSRR) and low output noise, beneficial for sensitive analog circuits.
These features make the LM2941T ideal for various applications, including portable devices, automotive systems, and general-purpose power supplies.

Package

The LM2941T is typically available in a TO-220 package type, which is a metal-can style package suitable for power applications, providing good thermal performance and ease of mounting.

Pinout

The LM2941T is a low-dropout linear voltage regulator with a pin count of 5. Its pins and functions are as follows:
1. Input (Vin): This pin receives the input voltage, which should be higher than the desired output voltage.
2. Output (Vout): This pin delivers the regulated output voltage, typically set to 5V.
3. Ground (GND): This pin is connected to the system ground.
4. Feedback (FB): This pin is used for voltage feedback to maintain the output voltage regulation.
5. Adjust (Adj): This pin allows for adjusting the output voltage if needed by connecting a resistor divider.
The LM2941T is designed for applications requiring a stable output voltage with minimal dropout, making it suitable for battery-powered devices.

Manufacturer

The LM2941T is manufactured by Texas Instruments (TI), a leading technology company that designs and produces semiconductors and various integrated circuits. Founded in 1930, Texas Instruments is renowned for its innovation in the electronics industry, particularly in analog and embedded processing technologies. The company serves a wide range of markets, including automotive, industrial, personal electronics, communications, and more. TI is known for its commitment to delivering high-quality, reliable products and solutions that drive advancements in electronic systems.

Application

The LM2941T is a low-dropout voltage regulator commonly used in various applications, including power management for microcontrollers, data acquisition systems, and automotive electronics. It provides stable output voltage for battery-powered devices, telecommunications equipment, and audio systems. Its features make it suitable for applications requiring low noise, high efficiency, and minimal heat generation, such as portable electronics and industrial automation systems.

Equivalent

The LM2941T is a low-dropout voltage regulator. Equivalent products include:
1. LM317 - Adjustable voltage regulator.
2. LT1085 - Low-dropout adjustable regulator.
3. LM1084 - 5A low-dropout voltage regulator.
4. LM2937 - Low-dropout voltage regulator with fixed output.
5. MIC2941 - Similar specifications with low dropout.
Always verify specifications for compatibility with your application.

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出荷料参照(DHL/FedEx):

DHL の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル(0.5kg)の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル(0.1kg)で、推定配送時間は5〜20営業日です。

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