TC1269-2.8VUA

Product Overview

Category

The TC1269-2.8VUA belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage: 2.8V
• Maximum Output Current: 500mA
• Low Dropout Voltage: 300mV at 100mA
• Low Quiescent Current: 75µA (typical)
• Thermal Shutdown Protection
• Short Circuit Current Limiting
• Reverse Battery Protection
• Small Package Size: SOT-23-5

Package and Quantity

The TC1269-2.8VUA is available in a small SOT-23-5 package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage: 2.8V ±2%
• Output Current: Up to 500mA
• Dropout Voltage: 300mV at 100mA
• Quiescent Current: 75µA (typical)
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23-5

Pin Configuration

The TC1269-2.8VUA has the following pin configuration:

```

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

• VIN: Input Voltage
• GND: Ground
• VOUT: Output Voltage
• EN: Enable Pin (Active High)

Functional Features

• Low Dropout Voltage: The TC1269-2.8VUA exhibits a low dropout voltage of 300mV at 100mA, ensuring efficient regulation even with small input-output differentials.
• Thermal Shutdown Protection: The device incorporates thermal shutdown protection, preventing damage due to excessive temperature.
• Short Circuit Current Limiting: It features short circuit current limiting, safeguarding the regulator and the connected circuitry from excessive current flow.
• Reverse Battery Protection: The TC1269-2.8VUA offers reverse battery protection, preventing damage in case of accidental reverse polarity connection.

Advantages

• Wide input voltage range allows for versatile applications.
• Low dropout voltage ensures efficient power conversion.
• Thermal shutdown protection prevents overheating and damage.
• Short circuit current limiting protects the regulator and connected components.
• Reverse battery protection safeguards against accidental reverse polarity connection.

Disadvantages

• Limited output current capacity (up to 500mA).
• SOT-23-5 package may require surface mount soldering expertise.

Working Principles

The TC1269-2.8VUA is a linear voltage regulator that operates by maintaining a constant output voltage despite variations in the input voltage. It achieves this through the use of a pass transistor that adjusts its resistance to regulate the output voltage. The enable pin (EN) can be used to turn the regulator on or off.

Application Field Plans

The TC1269-2.8VUA finds application in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Embedded systems - Automotive electronics - Industrial control systems

Alternative Models

Other alternative models that offer similar functionality to the TC1269-2.8VUA include: - LM1117-2.8 - MCP1700-2.8 - LP2985-2.8 - LT1763-2.8

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

In conclusion, the TC1269-2.8VUA is a voltage regulator with a wide input voltage range, low dropout voltage, and various protection features. It finds application in diverse electronic systems and has alternative models that offer similar functionality.