MIC37301-3.3BR

Product Overview

Category

MIC37301-3.3BR belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 4.5V to 36V
• Output Voltage: 3.3V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV
• Operating Temperature Range: -40°C to +125°C

Package

MIC37301-3.3BR comes in a small outline package (SOT-23-5).

Essence

The essence of this product lies in its ability to provide a stable and regulated output voltage of 3.3V, regardless of input voltage fluctuations.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing 3000 units.

Specifications

• Input Voltage Range: 4.5V to 36V
• Output Voltage: 3.3V ±2%
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Line Regulation: ±0.2%
• Load Regulation: ±0.5%
• Quiescent Current: 120µA
• Shutdown Current: 0.1µA
• Thermal Shutdown Protection: Yes
• Short Circuit Protection: Yes
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

MIC37301-3.3BR has a total of five pins:

1. VIN: Input voltage pin.
2. GND: Ground reference pin.
3. EN: Enable pin for turning the regulator on/off.
4. FB: Feedback pin for setting the output voltage.
5. VOUT: Output voltage pin.

Functional Features

• Wide input voltage range allows for versatile applications.
• Low dropout voltage ensures efficient power conversion.
• Excellent line and load regulation for stable output voltage.
• Thermal shutdown protection prevents overheating.
• Short circuit protection safeguards the regulator and connected components.

Advantages

• Compact SOT-23-5 package enables space-saving designs.
• Wide operating temperature range suits various environments.
• Low quiescent current minimizes power consumption.
• Easy to use with simple pin configuration.

Disadvantages

• Maximum output current limited to 1A, may not be suitable for high-power applications.
• Dropout voltage of 300mV may cause a slight voltage drop across the regulator.

Working Principles

MIC37301-3.3BR operates based on a linear voltage regulation principle. It uses an internal reference voltage and feedback mechanism to maintain a constant output voltage of 3.3V, regardless of input voltage variations. The regulator adjusts its internal resistance to compensate for changes in load and input conditions, ensuring a stable output.

Detailed Application Field Plans

MIC37301-3.3BR finds applications in various electronic systems, including but not limited to:

1. Battery-powered devices: Provides regulated power supply for portable electronics such as smartphones, tablets, and wearables.
2. Industrial control systems: Used in automation equipment, sensors, and actuators to ensure stable voltage supply.
3. Automotive electronics: Suitable for powering infotainment systems, lighting modules, and other vehicle components.
4. Communication systems: Enables reliable voltage regulation in routers, switches, and network equipment.
5. IoT devices: Supports low-power IoT applications by providing a regulated voltage source.

Detailed and Complete Alternative Models

1. LM1117-3.3: Similar voltage regulator with a TO-220 package and higher maximum output current (up to 800mA).
2. LT1763-3.3: Low dropout voltage regulator with a SOT-23 package and adjustable output voltage.
3. TPS7A3301: Ultra-low noise regulator with a DSBGA package and high PSRR (Power Supply Rejection Ratio).

These alternative models offer similar functionality to MIC37301-3.3BR but may have different package options, output current capabilities, or additional features.

In conclusion, MIC37301-3.3BR is a versatile voltage regulator that provides stable 3.3V output voltage in various electronic applications. Its compact size, wide input voltage range, and protection features make it an ideal choice for many designs.