TC1262-3.3VDBTR

Product Overview

Category

The TC1262-3.3VDBTR belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage: 3.3V
• Maximum Output Current: 500mA
• Low Dropout Voltage: 300mV (typical)
• Low Quiescent Current: 120µA (typical)
• Thermal Shutdown Protection
• Short Circuit Current Limit
• Reverse Battery Protection
• Small Package Size: SOT-23-5

Packaging/Quantity

The TC1262-3.3VDBTR is available in a small SOT-23-5 package. It is typically sold in reels containing a quantity of 3000 units.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage: 3.3V ±2%
• Output Current: Up to 500mA
• Dropout Voltage: 300mV (typical) at 100mA load
• Quiescent Current: 120µA (typical)
• Line Regulation: 0.1% (typical)
• Load Regulation: 0.4% (typical)
• Ripple Rejection: 60dB (typical)
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23-5

Detailed Pin Configuration

The TC1262-3.3VDBTR has five pins arranged as follows:

```

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| | --| V+ |-- --| |-- --| GND|-- --| |-- --| VOUT|-- |____| ```

• V+: Input voltage pin
• GND: Ground pin
• VOUT: Output voltage pin

Functional Features

1. Low Dropout Voltage: The TC1262-3.3VDBTR exhibits a low dropout voltage of only 300mV, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
2. Low Quiescent Current: With a quiescent current of only 120µA, the regulator minimizes power consumption in standby or low-load conditions.
3. Thermal Shutdown Protection: The device incorporates thermal shutdown protection, preventing damage due to excessive temperature.
4. Short Circuit Current Limit: It features a short circuit current limit to protect the regulator and the connected circuitry from excessive current.
5. Reverse Battery Protection: The TC1262-3.3VDBTR includes reverse battery protection, safeguarding against accidental reverse polarity connection.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for flexibility in various applications.
• Low dropout voltage ensures efficient voltage regulation.
• Small package size enables space-saving designs.
• Thermal shutdown protection prevents overheating and damage.
• Reverse battery protection avoids potential damage due to incorrect polarity connection.

Disadvantages

• Maximum output current limited to 500mA, which may not be sufficient for high-power applications.
• Limited output voltage options, with only 3.3V available.

Working Principles

The TC1262-3.3VDBTR 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 obtained from a voltage divider network. The pass transistor adjusts its resistance to maintain a stable output voltage despite variations in the input voltage and load conditions.

Detailed Application Field Plans

The TC1262-3.3VDBTR finds applications in various electronic systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Embedded systems - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and package size.
2. MCP1700-3302E: Another alternative offering a low dropout voltage and small package size.
3. LP2985-33DBVR: An alternative with adjustable output voltage and comparable characteristics.

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

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