TC1262-2.5VDB

Product Overview

Category

The TC1262-2.5VDB 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 100mA
• Low Quiescent Current: 30µA (typical)
• Thermal Shutdown Protection
• Short Circuit Current Limiting
• SOT-23 Package

Package and Quantity

The TC1262-2.5VDB is available in a SOT-23 package. It is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 2.7V to 6.0V
• Output Voltage: 2.5V ±2%
• Output Current: Up to 500mA
• Dropout Voltage: 300mV at 100mA
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to +125°C
• Thermal Shutdown Temperature: 150°C
• Short Circuit Current Limit: 1.2A (typical)

Pin Configuration

The TC1262-2.5VDB has three pins:

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

Functional Features

• Voltage regulation: The TC1262-2.5VDB provides a stable output voltage of 2.5V, regardless of input voltage fluctuations.
• Low dropout voltage: With a dropout voltage of only 300mV at 100mA, this regulator can efficiently operate with low input-output differentials.
• Low quiescent current: The device consumes a minimal amount of current (30µA typical) when in standby mode, conserving power.
• Thermal shutdown protection: The regulator includes a built-in thermal shutdown feature that protects it from overheating.
• Short circuit current limiting: In the event of a short circuit, the TC1262-2.5VDB limits the output current to prevent damage.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for flexibility in various applications.
• Low dropout voltage ensures efficient operation even with small input-output differentials.
• Low quiescent current minimizes power consumption during standby.
• Thermal shutdown protection prevents overheating and potential damage.
• Short circuit current limiting protects the device and connected components.

Disadvantages

• Limited output voltage options restrict its use in applications requiring different voltage levels.
• SOT-23 package may not be suitable for all circuit designs or assembly processes.

Working Principles

The TC1262-2.5VDB 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 device operates by dissipating excess voltage as heat, which is why it has a maximum operating temperature and thermal shutdown protection.

Detailed Application Field Plans

The TC1262-2.5VDB finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Embedded systems - Industrial control systems - Automotive electronics - Medical devices

Alternative Models

Here are some alternative models that offer similar functionality to the TC1262-2.5VDB:

1. LM1117-2.5: This voltage regulator provides a fixed output voltage of 2.5V and has a maximum output current of 800mA.
2. MCP1702-2.5: This regulator offers a fixed output voltage of 2.5V and has a low dropout voltage of 178mV at 250mA.
3. LT1761-2.5: With an output voltage of 2.5V, this regulator can deliver up to 100mA of current and has a low quiescent current of 40µA.

These alternative models can be considered based on specific application requirements and desired specifications.

In conclusion, the TC1262-2.5VDB is a voltage regulator that provides stable 2.5V output voltage with low dropout and quiescent currents. It offers thermal shutdown protection and short circuit current limiting for enhanced reliability. Its wide input voltage range and compact SOT-23 package make it suitable for various electronic applications.