TC1273-5ENBTR

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage Regulator

Characteristics: - Low Dropout Voltage - Low Quiescent Current - High Accuracy Output Voltage - Thermal Shutdown Protection - Short Circuit Current Limiting

Package: SOT-23-5

Essence: The TC1273-5ENBTR is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The TC1273-5ENBTR is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Input Voltage Range: 2.7V to 6.5V
• Output Voltage Options: 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 5.0V
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 40µA
• Output Current: 250mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TC1273-5ENBTR has a total of five pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. BYP: Bypass capacitor pin
5. EN: Enable pin

Functional Features

• Low Dropout Voltage: The TC1273-5ENBTR exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: With a quiescent current of only 40µA, the TC1273-5ENBTR minimizes power consumption during standby or idle modes.
• High Accuracy Output Voltage: The IC provides a highly accurate output voltage, ensuring stable and reliable operation of connected devices.
• Thermal Shutdown Protection: The TC1273-5ENBTR incorporates thermal shutdown protection, preventing damage due to excessive temperature.
• Short Circuit Current Limiting: In the event of a short circuit, the IC limits the current to protect itself and the connected components.

Advantages and Disadvantages

Advantages: - Efficient voltage regulation - Low power consumption - High accuracy - Thermal protection - Short circuit protection

Disadvantages: - Limited output current capacity (250mA)

Working Principles

The TC1273-5ENBTR operates as a linear voltage regulator. It regulates the input voltage to a stable output voltage by utilizing a pass transistor and feedback control mechanism. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The TC1273-5ENBTR is widely used in various electronic devices that require a stable and regulated power supply. Some common application fields include:

1. Mobile Devices: Smartphones, tablets, portable media players
2. Consumer Electronics: Digital cameras, portable gaming consoles
3. Computer Peripherals: USB hubs, external hard drives
4. Industrial Equipment: Sensors, control systems
5. Automotive Electronics: Infotainment systems, navigation devices

Detailed and Complete Alternative Models

1. LM1117-3.3: 3.3V voltage regulator with similar specifications and package
2. MCP1700-3302E: 3.3V low dropout voltage regulator in SOT-23-5 package
3. TS2937CP-3.3: 3.3V adjustable voltage regulator with thermal shutdown protection

These alternative models offer similar functionality and can be considered as substitutes for the TC1273-5ENBTR in various applications.

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