MIC7211BM5-TR

Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - Low quiescent current - High output voltage accuracy - Thermal shutdown protection - Short-circuit current limiting - Overcurrent protection

Package: SOT-23-5

Essence: The MIC7211BM5-TR is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The MIC7211BM5-TR is typically sold in reels of 3000 units.

Specifications

The MIC7211BM5-TR has the following specifications:

• Input Voltage Range: 2.7V to 16V
• Output Voltage Range: 1.2V to 15V
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 120µA
• Output Current: 150mA
• Line Regulation: 0.04%/V
• Load Regulation: 0.05%/mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC7211BM5-TR has a SOT-23-5 package with the following pin configuration:

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Pin 1: Enable (EN) Pin 2: Ground (GND) Pin 3: Feedback (FB) Pin 4: Output (OUT) Pin 5: Input (IN)

Functional Features

The MIC7211BM5-TR offers the following functional features:

1. Low Dropout Voltage: The IC maintains a low dropout voltage, ensuring efficient power conversion even when the input voltage is close to the output voltage.
2. Low Quiescent Current: The IC consumes minimal current when in standby mode, reducing power consumption and extending battery life.
3. High Output Voltage Accuracy: The IC provides precise output voltage regulation, ensuring stable operation of connected devices.
4. Thermal Shutdown Protection: The IC includes a thermal shutdown feature that protects it from overheating, preventing damage to the device.
5. Short-Circuit Current Limiting: The IC limits the current in case of a short circuit, protecting both the regulator and the connected devices.
6. Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding against excessive current flow.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - Low quiescent current minimizes power consumption. - High output voltage accuracy ensures stable operation. - Thermal shutdown protection prevents overheating. - Short-circuit current limiting protects the regulator and connected devices. - Overcurrent protection safeguards against excessive current flow.

Disadvantages: - Limited output current capacity (150mA).

Working Principles

The MIC7211BM5-TR operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB) with a reference voltage. The enable pin (EN) controls the regulator's on/off state. When enabled, the regulator adjusts the pass transistor to maintain the desired output voltage. The IC also incorporates various protection features, such as thermal shutdown and overcurrent protection, to ensure safe and reliable operation.

Detailed Application Field Plans

The MIC7211BM5-TR finds applications in various electronic devices that require stable voltage regulation. Some common application fields include:

1. Battery-Powered Devices: Portable electronics, such as smartphones, tablets, and wearable devices, benefit from the low dropout voltage and low quiescent current of the MIC7211BM5-TR, extending battery life.
2. Industrial Control Systems: The IC's high output voltage accuracy and protection features make it suitable for use in industrial control systems, ensuring stable and reliable operation.
3. Automotive Electronics: The MIC7211BM5-TR can be used in automotive applications, providing regulated power to sensors, actuators, and other electronic components.
4. Telecommunications Equipment: The IC finds application in telecommunications equipment, such as routers and switches, where precise voltage regulation is crucial for optimal performance.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MIC7211BM5-TR include:

1. LM1117: A popular voltage regulator IC with adjustable output voltage and low dropout voltage.
2. LT1763: A high-performance, low dropout voltage regulator with a wide input voltage range.
3. MAX603: An ultra-low quiescent current voltage regulator with low dropout voltage and high output voltage accuracy.

These alternative models provide options for different voltage and current requirements, allowing designers to choose the most suitable solution for their specific application.

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