MIC37139-2.5BS

Product Overview

Category

MIC37139-2.5BS 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 60V
• Output Voltage: 2.5V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV
• Low Quiescent Current: 50µA
• Thermal Shutdown Protection
• Short Circuit Protection
• Adjustable Soft-Start
• Small Package Size: SOT-23-5

Packaging/Quantity

MIC37139-2.5BS is available in a small SOT-23-5 package. It is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage: 2.5V
• Output Current: Up to 1A
• Dropout Voltage: 300mV
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23-5

Pin Configuration

MIC37139-2.5BS has the following pin configuration:

```

---

| | --|VIN |-- --|GND |-- --|EN |-- --|FB |-- --|VOUT|-- |____| ```

Functional Features

1. Wide Input Voltage Range: The MIC37139-2.5BS can accept input voltages ranging from 4.5V to 60V, making it suitable for various applications.
2. Low Quiescent Current: With a quiescent current of only 50µA, this voltage regulator minimizes power consumption and extends battery life.
3. Thermal Shutdown Protection: The device incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
4. Short Circuit Protection: MIC37139-2.5BS includes short circuit protection, safeguarding the circuit from potential damage during fault conditions.
5. Adjustable Soft-Start: The soft-start feature allows for a controlled and gradual rise in output voltage, reducing stress on connected components.

Advantages

• Wide input voltage range enables compatibility with various power sources.
• Low quiescent current reduces power consumption.
• Thermal shutdown and short circuit protection enhance reliability.
• Adjustable soft-start feature prevents sudden voltage spikes.

Disadvantages

• Limited output current of 1A may not be sufficient for high-power applications.
• Dropout voltage of 300mV may affect efficiency in low voltage scenarios.

Working Principles

MIC37139-2.5BS is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage to adjust the pass transistor's resistance. This adjustment ensures a stable output voltage of 2.5V, regardless of variations in the input voltage.

Application Field Plans

The MIC37139-2.5BS finds applications in various fields, including:

1. Automotive Electronics: Used in automotive systems to regulate voltage for sensors, actuators, and control modules.
2. Industrial Automation: Provides stable voltage for PLCs, motor drives, and other industrial control systems.
3. Telecommunications: Ensures consistent voltage levels in telecom equipment, such as routers, switches, and base stations.
4. Consumer Electronics: Used in portable devices, audio/video equipment, and battery-powered gadgets to maintain a steady power supply.

Alternative Models

1. MIC37100-2.5BS: Similar to MIC37139-2.5BS but with a higher output current of 3A.
2. MIC37150-2.5BS: Offers a higher output voltage of 2.5V and an output current of 1.5A.

These alternative models provide options for different output current and voltage requirements while maintaining similar characteristics and package size.

In conclusion, the MIC37139-2.5BS is a voltage regulator with a wide input voltage range, low quiescent current, and various protection features. Its compact size and adjustable soft-start make it suitable for diverse applications in automotive, industrial, telecommunications, and consumer electronics fields.