MIC2544-2BMM

Product Overview

Category

MIC2544-2BMM belongs to the category of integrated circuits (ICs).

Use

The MIC2544-2BMM is primarily used as a power distribution switch.

Characteristics

• The MIC2544-2BMM is a low-side power switch with an integrated charge pump.
• It operates in a wide input voltage range, typically from 2.7V to 5.5V.
• The device has a low quiescent current, making it suitable for battery-powered applications.
• It offers overcurrent protection and thermal shutdown features.
• The MIC2544-2BMM is available in a miniature 8-pin MSOP package.

Package and Quantity

The MIC2544-2BMM is packaged in an 8-pin MSOP package. It is typically sold in reels or tubes containing a specified quantity of units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Quiescent Current: <1µA
• Operating Temperature Range: -40°C to +85°C
• Overcurrent Protection Threshold: Adjustable
• Thermal Shutdown Temperature: 150°C

Pin Configuration

The MIC2544-2BMM has the following pin configuration:

```

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| | --| EN OUT |-- Output --| GND IN+ |-- Positive Supply --| IN- FB |-- Feedback --| PGD IN- |-- Negative Supply --| PGD GND |-- Ground |___________| ```

Functional Features

• Integrated charge pump for high-side N-channel MOSFET control.
• Adjustable overcurrent protection threshold.
• Thermal shutdown protection to prevent overheating.
• Low quiescent current for power efficiency.
• Fast current limiting response to protect the load.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Low quiescent current minimizes power consumption.
• Integrated charge pump simplifies high-side MOSFET control.
• Adjustable overcurrent protection threshold provides flexibility.
• Thermal shutdown feature prevents damage due to overheating.

Disadvantages

• Limited to low-side power switching applications.
• The 8-pin MSOP package may not be suitable for all designs.
• Not suitable for high-voltage applications.

Working Principles

The MIC2544-2BMM is designed to control the power distribution in a circuit. It utilizes an integrated charge pump to control a high-side N-channel MOSFET. The device monitors the current flowing through the load and responds by adjusting the MOSFET's conduction state. In case of an overcurrent condition, the device limits the current to protect the load. Additionally, the thermal shutdown feature ensures that the device does not exceed its maximum operating temperature.

Application Field Plans

The MIC2544-2BMM finds applications in various fields, including but not limited to: - Battery-powered devices - Portable electronics - Industrial automation - Automotive systems - Power management circuits

Alternative Models

Here are some alternative models that offer similar functionality: - MIC2545-1YM - TPS22922YZPR - FPF2700MPX

These alternatives can be considered based on specific requirements and design constraints.

In conclusion, the MIC2544-2BMM is a versatile power distribution switch with integrated charge pump, offering adjustable overcurrent protection and thermal shutdown features. Its wide input voltage range and low quiescent current make it suitable for various battery-powered applications. However, it is important to consider alternative models based on specific design needs.