TC1278-15ENBTR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Overcurrent protection

Package: SOT-223

Essence: The TC1278-15ENBTR is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The TC1278-15ENBTR is available in a SOT-223 package. It is typically sold in reels containing 2500 units.

Specifications

• Input Voltage Range: 2.5V - 6.5V
• Output Voltage Range: 1.2V - 5.5V
• Output Current: Up to 1.5A
• Dropout Voltage: 200mV at 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TC1278-15ENBTR has the following pin configuration:

```

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| | --| Vout | --| GND | --| Vin | --| EN | |___________| ```

• Vout: Output Voltage
• GND: Ground
• Vin: Input Voltage
• EN: Enable Pin

Functional Features

• Low Dropout Voltage: The TC1278-15ENBTR exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 1.5A, this voltage regulator can power a wide range of electronic devices.
• Adjustable Output Voltage: The output voltage can be adjusted within the specified range to meet the requirements of different applications.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
• Overcurrent Protection: The TC1278-15ENBTR includes overcurrent protection to safeguard against excessive current flow.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for powering various devices - Adjustable output voltage provides flexibility - Thermal shutdown and overcurrent protection enhance reliability

Disadvantages: - Limited input voltage range (2.5V - 6.5V) - Quiescent current of 75µA may not be suitable for ultra-low power applications

Working Principles

The TC1278-15ENBTR operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. The enable pin (EN) controls the operation of the regulator. When EN is high, the regulator is enabled and provides a regulated output voltage. When EN is low, the regulator enters a low-power standby mode.

Detailed Application Field Plans

The TC1278-15ENBTR is commonly used in various electronic devices that require a stable and regulated power supply. Some typical application fields include:

1. Mobile Devices: Smartphones, tablets, portable media players.
2. Computer Peripherals: USB hubs, external hard drives, printers.
3. Consumer Electronics: Digital cameras, gaming consoles, audio/video equipment.
4. Industrial Equipment: Test and measurement instruments, control systems, motor drivers.
5. Automotive Electronics: Infotainment systems, navigation devices, lighting controls.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator with similar characteristics.
2. LT1084: High-current, low-dropout voltage regulator suitable for demanding applications.
3. LM1117: Fixed output voltage regulator available in various voltage options.

These alternative models offer similar functionality and can be considered as substitutes for the TC1278-15ENBTR depending on specific requirements.

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