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MIC2941AWU

Name: MIC2941AWU
Rating: 4.7 (12 reviews)

IC REG LIN POS ADJ 1.25A TO263-5

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資料表 MIC2941AWU DataSheet
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規格

Part Status	Active
Output Configuration	Positive
Output Type	Adjustable
Number of Regulators	1
Voltage - Input (Max)	26V
Voltage - Output (Min/Fixed)	1.24V
Voltage - Output (Max)	26V
Voltage Dropout (Max)	0.6V @ 1.25A
Current - Output	1.25A
Current - Quiescent (Iq)	500 µA
Current - Supply (Max)	70 mA
Control Features	Enable
Protection Features	Over Current, Over Temperature, Reverse Polarity
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package	TO-263-5
Base Product Number	MIC2941

概述

Description

The MIC2941AWU is a low-dropout voltage regulator (LDO) designed for applications requiring a stable output voltage with minimal input-output differential. It provides a fixed output voltage of 1.5V, 3.3V, or 5V with a maximum output current of 1A. The device features low quiescent current, making it suitable for battery-powered applications. Its dropout voltage is typically around 0.4V at full load, allowing for efficient operation even when the input voltage is close to the output voltage.
The MIC2941AWU includes built-in overcurrent protection and thermal shutdown features to enhance reliability. Additionally, it is available in a 5-pin TO-220 package, which aids in thermal dissipation. Applications include portable electronics, consumer devices, and other systems needing a regulated power supply. Its simplicity and robustness make it a popular choice among engineers for various design projects.

Features

The MIC2941AWU is a high-performance voltage regulator designed for a variety of applications. Key features include:
1. Output Voltage: Adjustable output voltage ranging from 1.25V to 37V.
2. High Current Output: Capable of supplying up to 1A of output current.
3. Low Dropout Voltage: Typically around 0.5V at full load, making it suitable for battery-powered devices.
4. Thermal Shutdown: Includes protection against thermal overload to ensure safe operation.
5. Current Limiting: Features built-in current limiting to protect against overcurrent conditions.
6. Fast Transient Response: Designed for quick response to load changes, enhancing stability.
7. Low Quiescent Current: Operates with low quiescent current, improving efficiency in low-power applications.
8. Package Options: Available in a TO-220 and a surface-mount package, facilitating ease of integration.
These features make the MIC2941AWU ideal for applications requiring reliable voltage regulation with low power consumption.

Package

The MIC2941AWU is packaged in a 5-lead TO-220 form factor. This package type is designed for efficient thermal performance and is commonly used in voltage regulator applications.

Pinout

The MIC2941AWU is a low dropout (LDO) voltage regulator with a pin count of 5. Its functions are as follows:
1. Input (Vin) - Provides the input voltage to the regulator.
2. Ground (GND) - Connects to the ground of the circuit.
3. Output (Vout) - Delivers the regulated output voltage.
4. Adjust (Adj) - Used for setting the output voltage when configured for adjustable operation.
5. Enable (Enable) - An optional pin that allows for enabling or disabling the regulator.
The device is designed to maintain a stable output voltage over a wide range of input voltages and loads, making it suitable for various applications in power management.

Manufacturer

The MIC2941AWU is manufactured by Micrel, Inc., which is a subsidiary of Microchip Technology Inc. Micrel is known for specializing in high-performance analog and mixed-signal semiconductor products. The company focuses on providing solutions for a wide range of applications, including power management, data communications, and industrial control. Their products are widely used in consumer electronics, automotive, and telecommunications industries. Microchip Technology, the parent company, is a leading provider of microcontroller and analog semiconductors, further expanding the capabilities and reach of Micrel's product offerings.

Application

The MIC2941AWU is a low-dropout voltage regulator used in various applications, including power management for microcontrollers, digital signal processors, and RF circuits. It provides stable output voltage for battery-powered devices, automotive electronics, and telecommunications equipment. Its features, such as high accuracy and low quiescent current, make it suitable for portable electronics, consumer devices, and industrial automation systems.

Equivalent

The MIC2941AWU is a low-dropout (LDO) voltage regulator. Equivalent products include the LM1084, LT1084, and MCP1700. Other options are the LM1117 and TPS7A47. Ensure to check specifications for output current, voltage, and package type to confirm compatibility.