MIC4576WU

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MIC4576WU

+БОМ

IC REG BUCK ADJ 3A TO263-5

  • ПроизводительТехнология микрочипов

  • Мфр. Часть #MIC4576WU

  • Лист данных MIC4576WU DataSheet

  • Пакет TO-263-5

  • В наличии4862

365 Дни гарантии качества

7*24 часы обслуживания каранти

90-гарантия послепродажного дня

Гарантия подлинного продукта

Спецификации

Атрибут Ценность
Package Tube
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 4V
Voltage-Input(Max) 36V
Voltage-Output(Min/Fixed) 1.23V
Voltage-Output(Max) 33V
Current-Output 3A
Frequency-Switching 200kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case TO-263-6, D²Pak (5 Leads + Tab), TO-263BA

Обзор

Description

The MIC4576WU is a high-efficiency switching regulator, which is designed to deliver a fixed or adjustable output voltage while minimizing power loss. It typically comes in a TO-263 package and can provide up to 3A of output current. The device operates over a wide input voltage range and utilizes a pulse-width modulation (PWM) control scheme to achieve efficient power conversion. It includes features like thermal shutdown, cycle-by-cycle current limit protection, and a low dropout voltage, making it suitable for various applications requiring reliable and efficient power regulation. The MIC4576WU is often used in applications like distributed power systems, battery-operated devices, or any electronics requiring efficient voltage conversion with high current capabilities.

Equivalent

The MIC4576WU is a step-down voltage regulator. Equivalent products include:
1. LM2576 by Texas Instruments
2. L4970A by STMicroelectronics
3. MC34063 by ON Semiconductor (with similar function but different characteristics)
4. L78S by STMicroelectronics (for similar applications but different specs)
Ensure compatibility by checking specific parameters such as input voltage range, output current, and efficiency when selecting a substitute.

Features

The MIC4576WU is a step-down (buck) switching regulator from Microchip Technology. Key features include:
1. Output Current: Capable of providing up to 3A of output current.
2. Input Voltage Range: Operates with input voltages from 4V to 34V.
3. Output Voltage: Adjustable output voltage range from 1.23V to 20V.
4. Efficiency: High efficiency, typically over 90%, due to its switching regulator design.
5. Switching Frequency: Operates at a fixed frequency of 200 kHz, which helps in minimizing the external component size.
6. Thermal Protection: Integrated thermal shutdown feature to protect against overheating.
7. Short-Circuit Protection: Built-in protection to prevent damage due to output short circuits.
8. Package: Available in a compact TO-263 surface-mount package for efficient heat dissipation and space-saving on PCBs.
9. Applications: Suitable for a wide range of applications including power supply sources for microcontrollers, industrial equipment, and battery-powered devices.
The MIC4576WU is well-suited for applications requiring efficient voltage conversion with reliable performance and protection features.

Pinout

The MIC4576WU is a high-efficiency buck regulator with a 5-pin configuration. Its primary function is to step down a higher input voltage to a lower output voltage with high efficiency. The pin functions are as follows:
1. VIN: This is the input voltage pin where the unregulated voltage is supplied.
2. SW (Switch): This pin is connected to the inductor and is used to switch the current through the inductor, contributing to the step-down conversion process.
3. GND: This is the ground pin, serving as the return path for the current.
4. FB (Feedback): This pin is used to set and maintain the output voltage by connecting it to a resistor divider network.
5. ON/OFF: This pin is used to enable or disable the regulator. When driven to a low state, the regulator shuts down, reducing power consumption.
The MIC4576 operates efficiently, making it suitable for various applications requiring a regulated output voltage from a higher input source.

Manufacturer

The MIC4576WU is manufactured by Microchip Technology Inc. This company is a leading semiconductor manufacturer that designs and produces a wide range of microcontrollers, mixed-signal, analog, and Flash-IP integrated circuits. Microchip Technology serves various industries including automotive, aerospace, industrial, home appliances, data centers, and consumer electronics. The company is well-known for providing embedded control solutions that help customers create efficient and reliable electronic products.

Application

The MIC4576WU is a step-down voltage regulator used in applications requiring efficient voltage conversion from a higher input voltage to a lower output voltage. Key application areas include power management in electronic devices, such as computers, networking equipment, and consumer electronics. It is also used in battery-powered devices to ensure efficient energy usage and in automotive systems for stable voltage supply. Its small size and high efficiency make it suitable for portable and space-constrained applications, including telecommunications equipment and industrial control systems. The regulator's ability to deliver consistent output under varying loads makes it ideal for use in complex electronic circuits requiring stable power.

Package

The MIC4576WU is a step-down voltage regulator, and it typically comes in a TO-263 (D2PAK) package type.

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