MIC37138-2.5YS

Product Overview

Category

MIC37138-2.5YS belongs to the category of voltage regulators.

Use

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

Characteristics

• Input Voltage Range: 4.5V to 26V
• Output Voltage: 2.5V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Low Quiescent Current: 120µA
• Low Shutdown Current: 0.1µA
• Thermal Shutdown Protection
• Short Circuit Protection
• Small Package Size: SOT-223
• RoHS Compliant

Packaging/Quantity

MIC37138-2.5YS is available in a SOT-223 package. It is typically sold in reels or tubes containing a specific quantity, such as 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 26V
• Output Voltage: 2.5V ±2%
• Output Current: Up to 1A
• Dropout Voltage: 300mV at 1A
• Quiescent Current: 120µA
• Shutdown Current: 0.1µA
• Operating Temperature Range: -40°C to +125°C
• Thermal Resistance: 50°C/W (junction-to-ambient)
• Package Type: SOT-223

Pin Configuration

MIC37138-2.5YS has the following pin configuration:

```

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| | --| VIN GND |-- Pin 1 --| VOUT EN |-- Pin 2 --| NC NC |-- Pin 3 |___________| ```

Functional Features

1. Voltage Regulation: MIC37138-2.5YS provides a stable output voltage of 2.5V, regardless of input voltage fluctuations.
2. Low Quiescent Current: The regulator consumes only 120µA of current when in operation, minimizing power consumption.
3. Shutdown Mode: The device can be put into a low-power shutdown mode by pulling the EN (Enable) pin low, reducing current consumption to 0.1µA.
4. Thermal Shutdown Protection: In case of excessive temperature, the regulator automatically shuts down to prevent damage.
5. Short Circuit Protection: The device is equipped with short circuit protection, safeguarding against potential damage caused by overcurrent conditions.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Low quiescent current minimizes power consumption.
• Thermal shutdown protection ensures safe operation.
• Short circuit protection prevents damage to the device.

Disadvantages

• Limited output current capacity of 1A may not be sufficient for high-power applications.
• Dropout voltage of 300mV at 1A may result in higher power dissipation.

Working Principles

MIC37138-2.5YS is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the output voltage to a reference voltage and adjusting the pass transistor accordingly to maintain a constant output voltage of 2.5V. The device also incorporates various protection mechanisms, such as thermal shutdown and short circuit protection, to ensure safe and reliable operation.

Detailed Application Field Plans

MIC37138-2.5YS finds applications in various electronic systems where a stable and regulated 2.5V power supply is required. Some potential application fields include:

1. Embedded Systems: Used to power microcontrollers, sensors, and other components in embedded systems.
2. Consumer Electronics: Provides regulated voltage for portable devices, such as smartphones, tablets, and portable media players.
3. Industrial Automation: Used in control systems, PLCs (Programmable Logic Controllers), and industrial equipment requiring a stable power source.
4. Automotive Electronics: Suitable for powering automotive modules, infotainment systems, and other electronic components in vehicles.
5. Telecommunications: Used in telecom infrastructure equipment, routers, switches, and communication devices.

Detailed and Complete Alternative Models

1. MIC37138-2.8YS: Similar to MIC37138-2.5YS but provides an output voltage of 2.8V.
2. MIC37138-3.3YS: Similar to MIC37138-2.5YS but provides an output voltage of 3.3V.
3. MIC37138-5.0YS: Similar to MIC37138-2.5YS but provides an output voltage of 5.0V.
4. MIC37138-AdjYS: Adjustable version of the regulator, allowing users to set the desired output voltage within a specific range.