MIC37151-3.3BR

Product Overview

Category

MIC37151-3.3BR belongs to the category of voltage regulators.

Use

This product is used to regulate and stabilize the output voltage in electronic circuits.

Characteristics

• Voltage regulation: The MIC37151-3.3BR provides a stable output voltage of 3.3V.
• High efficiency: This voltage regulator operates with high efficiency, minimizing power loss.
• Low dropout voltage: It has a low dropout voltage, ensuring reliable performance even when the input voltage is close to the desired output voltage.
• Thermal shutdown protection: The MIC37151-3.3BR includes thermal shutdown protection, preventing damage due to excessive heat.
• Short-circuit protection: It offers short-circuit protection, safeguarding the circuit from damage in case of a fault.

Package

The MIC37151-3.3BR comes in a compact SOT-223 package, which is suitable for surface mount applications.

Essence

The essence of MIC37151-3.3BR lies in its ability to provide a stable and regulated output voltage, ensuring proper functioning of electronic devices.

Packaging/Quantity

This product is typically available in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 20V
• Output Voltage: 3.3V
• Dropout Voltage: 300mV (typical)
• Maximum Output Current: 1.5A
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Quiescent Current: 120µA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC37151-3.3BR has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin

Functional Features

• Voltage regulation: The MIC37151-3.3BR maintains a constant output voltage of 3.3V, regardless of input voltage fluctuations.
• Current limiting: It includes current limiting functionality to protect the circuit from excessive current flow.
• Thermal shutdown: The device shuts down automatically if the temperature exceeds a safe threshold, preventing damage due to overheating.
• Short-circuit protection: In case of a short circuit, the MIC37151-3.3BR limits the current to protect the circuit components.

Advantages and Disadvantages

Advantages

• Stable output voltage ensures reliable performance of electronic devices.
• High efficiency minimizes power loss.
• Compact package allows for easy integration into circuits.
• Thermal shutdown and short-circuit protection enhance safety and reliability.

Disadvantages

• Limited maximum output current (1.5A).
• Requires an input voltage within the specified range (4.5V to 20V).

Working Principles

The MIC37151-3.3BR is a linear voltage regulator that uses a feedback mechanism to maintain a constant output voltage. It compares the output voltage with a reference voltage and adjusts the internal circuitry to ensure the desired output voltage is maintained. The device regulates the voltage by controlling the amount of current flowing through a pass transistor.

Detailed Application Field Plans

The MIC37151-3.3BR can be used in various applications, including but not limited to: - Power supplies for microcontrollers and other digital ICs - Battery-powered devices - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MIC37151-3.3BR include: - LM1117-3.3: A popular voltage regulator with a fixed 3.3V output. - LT1763-3.3: A low dropout voltage regulator capable of providing a stable 3.3V output. - TPS79633: Another voltage regulator offering a fixed 3.3V output with low dropout voltage.

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

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