MIC37138-2.5BS

Product Overview

Category

MIC37138-2.5BS 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: 2.5V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV
• Low Quiescent Current: 120µA
• Package Type: SOT-223
• Thermal Shutdown Protection
• Short Circuit Protection

Package and Quantity

MIC37138-2.5BS is available in a SOT-223 package. It is typically sold in reels or tubes containing a specific quantity, such as 250 units per reel.

Specifications

• Input Voltage Range: 4.5V to 36V
• Output Voltage: 2.5V
• Output Current: Up to 1A
• Dropout Voltage: 300mV (typical)
• Quiescent Current: 120µA (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Ripple Rejection: 70dB (typical)
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-223

Pin Configuration

MIC37138-2.5BS has the following pin configuration:

```

---

| | --| VIN GND |-- --| VOUT EN |-- |___________| ```

• VIN: Input Voltage
• GND: Ground
• VOUT: Output Voltage
• EN: Enable Pin

Functional Features

1. Wide Input Voltage Range: The MIC37138-2.5BS can accept input voltages ranging from 4.5V to 36V, making it suitable for a wide range of applications.
2. Low Dropout Voltage: With a dropout voltage as low as 300mV, this voltage regulator minimizes power dissipation and improves efficiency.
3. Low Quiescent Current: The device has a low quiescent current of 120µA, reducing power consumption in standby or idle modes.
4. Thermal Shutdown Protection: It incorporates thermal shutdown protection, which prevents the device from overheating and ensures safe operation.
5. Short Circuit Protection: The MIC37138-2.5BS includes short circuit protection, safeguarding the device and the connected circuitry from damage.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile application.
• Low dropout voltage enhances efficiency.
• Low quiescent current reduces power consumption.
• Thermal shutdown protection ensures safe operation.
• Short circuit protection prevents damage to the device and connected components.

Disadvantages

• Limited output current capacity (up to 1A).

Working Principles

MIC37138-2.5BS is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly. This feedback mechanism ensures a stable output voltage even when the input voltage or load conditions vary.

Application Field Plans

The MIC37138-2.5BS is commonly used in various electronic devices and systems, including but not limited to: - Power supplies - Battery-powered devices - Industrial control systems - Automotive electronics - Telecommunications equipment - Consumer electronics

Alternative Models

Here are some alternative models that offer similar functionality to MIC37138-2.5BS: - LM1117-2.5 - LT1086-2.5 - TPS7A4901-2.5 - ADP3339-2.5

These alternatives can be considered based on specific application requirements and availability.

In conclusion, the MIC37138-2.5BS is a voltage regulator with a wide input voltage range, low dropout voltage, and low quiescent current. It offers thermal shutdown and short circuit protection for safe operation. This device finds applications in various electronic systems and has alternative models available in the market.