TC1269-2.5VUA

Product Overview

Category

The TC1269-2.5VUA belongs to the category of voltage regulators.

Use

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

Characteristics

• Input Voltage Range: 2.7V to 6.0V
• Output Voltage: 2.5V
• Maximum Output Current: 500mA
• Low Dropout Voltage: 300mV at 500mA
• Low Quiescent Current: 75µA (typical)
• Thermal Shutdown Protection
• Short Circuit Current Limiting
• SOT-23 Package

Package and Quantity

The TC1269-2.5VUA is available in a SOT-23 package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.7V to 6.0V
• Output Voltage: 2.5V ±2%
• Output Current: Up to 500mA
• Dropout Voltage: 300mV at 500mA
• Quiescent Current: 75µA (typical)
• Operating Temperature Range: -40°C to +125°C
• Thermal Resistance: 200°C/W (junction-to-ambient)

Pin Configuration

The TC1269-2.5VUA has the following pin configuration:

```

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| | --|VIN |-- --| |-- --|GND |-- --| |-- --|VOUT|-- |____| ```

Functional Features

• Voltage regulation: The TC1269-2.5VUA ensures a stable output voltage of 2.5V, regardless of input voltage fluctuations.
• Low dropout voltage: With a dropout voltage of only 300mV at 500mA, this regulator minimizes power dissipation.
• Low quiescent current: The device operates with a low quiescent current of 75µA, reducing power consumption in standby mode.
• Thermal shutdown protection: The regulator includes thermal shutdown protection to prevent damage from excessive heat.
• Short circuit current limiting: It incorporates short circuit current limiting to protect the circuit from overcurrent conditions.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for flexibility in various applications.
• Low dropout voltage reduces power dissipation and improves efficiency.
• Compact SOT-23 package enables space-saving designs.
• Thermal shutdown protection ensures safe operation under high temperature conditions.
• Short circuit current limiting protects the circuit from damage.

Disadvantages

• Limited output current capacity (up to 500mA).
• Output voltage fixed at 2.5V, not adjustable.

Working Principles

The TC1269-2.5VUA is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage of 2.5V. The regulator operates in a low dropout mode, allowing it to regulate the voltage even when the input voltage is close to the desired output voltage.

Application Field Plans

The TC1269-2.5VUA finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable electronics - IoT devices - Embedded systems - Automotive electronics - Industrial control systems

Alternative Models

There are several alternative models available in the market that offer similar functionality to the TC1269-2.5VUA. Some notable alternatives include: - LM1117-2.5V - MCP1700-2.5V - LT1761-2.5V - TS2950-2.5V

These alternatives can be considered based on specific requirements and design constraints.

In conclusion, the TC1269-2.5VUA is a voltage regulator with a wide input voltage range, low dropout voltage, and low quiescent current. It provides stable 2.5V output voltage and offers thermal shutdown protection and short circuit current limiting. This device finds applications in various electronic systems and has alternative models available in the market for design flexibility.