MIC5237-2.5BU

Product Overview

Category

The MIC5237-2.5BU belongs to the category of voltage regulators.

Use

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

Characteristics

• Voltage Output: 2.5V
• Package Type: SOT-23
• Essence: Low dropout linear regulator
• Packaging/Quantity: Bulk packaging, typically sold in reels or tubes

Specifications

The MIC5237-2.5BU has the following specifications:

• Input Voltage Range: 2.5V to 16V
• Dropout Voltage: 200mV at 150mA load current
• Output Current: Up to 150mA
• Line Regulation: ±0.1%
• Load Regulation: ±0.4%
• Quiescent Current: 75µA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC5237-2.5BU has three pins:

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

Functional Features

• Low dropout voltage: The MIC5237-2.5BU can operate with a very small voltage difference between the input and output, ensuring efficient power conversion.
• Low quiescent current: The regulator consumes minimal current when there is no load, reducing power consumption.
• Short-circuit protection: The device is designed to protect against short-circuits, preventing damage to the regulator and connected components.
• Thermal shutdown: In case of excessive temperature, the regulator automatically shuts down to prevent overheating.

Advantages and Disadvantages

Advantages

• Small package size allows for space-saving designs.
• Wide input voltage range enables compatibility with various power sources.
• Low dropout voltage ensures efficient power conversion.
• Excellent line and load regulation for stable output voltage.

Disadvantages

• Limited output current capacity may not be suitable for high-power applications.
• Requires external capacitors for stability, adding additional components to the circuit.

Working Principles

The MIC5237-2.5BU is a low dropout linear regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage from the output, adjusting the pass transistor to maintain a stable output voltage.

Detailed Application Field Plans

The MIC5237-2.5BU finds applications in various electronic devices and systems, including but not limited to:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices benefit from the low dropout voltage and low quiescent current of the regulator.
2. Industrial control systems: The regulator can be used in automation equipment, sensors, and other industrial applications that require stable and regulated power supply.
3. Automotive electronics: The device can be employed in automotive systems like infotainment systems, lighting controls, and engine management units.

Detailed and Complete Alternative Models

1. LM1117-2.5: A popular alternative with similar specifications and pin configuration.
2. LT1763-2.5: Another alternative offering lower dropout voltage and higher output current capability.
3. MCP1702-2.5: An alternative with a smaller package size and lower quiescent current.

These alternatives provide similar functionality and can be considered based on specific application requirements.

In conclusion, the MIC5237-2.5BU is a voltage regulator with a 2.5V output, designed for various electronic applications. Its low dropout voltage, wide input voltage range, and compact package make it suitable for a range of devices. However, its limited output current capacity and the need for external capacitors should be considered in high-power applications.