TL7770-5CDW

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High precision - Low dropout voltage - Adjustable output voltage - Current limiting and thermal shutdown protection - Wide input voltage range

Package: CDIP (Ceramic Dual In-line Package)

Essence: The TL7770-5CDW is a voltage regulator IC designed to provide a stable output voltage for various electronic devices.

Packaging/Quantity: The TL7770-5CDW is available in a CDIP package and is typically sold in reels of 1000 units.

Specifications

• Input Voltage Range: 2.7V to 18V
• Output Voltage Range: 1.25V to 16V
• Dropout Voltage: 0.4V at 1A load current
• Output Current: Up to 1A
• Line Regulation: ±0.02%/V
• Load Regulation: ±0.04%/A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TL7770-5CDW has the following pin configuration:

1. Vout: Output Voltage
2. GND: Ground
3. Vin: Input Voltage
4. Adj: Adjust Pin for Output Voltage Setting

Functional Features

• High Precision: The TL7770-5CDW provides a highly accurate and stable output voltage, ensuring reliable performance of connected devices.
• Low Dropout Voltage: With a low dropout voltage of only 0.4V, the IC can regulate the output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The output voltage can be easily adjusted using an external resistor connected to the Adj pin, allowing flexibility in various applications.
• Current Limiting and Thermal Shutdown Protection: The IC incorporates current limiting and thermal shutdown protection mechanisms to prevent damage due to excessive current or temperature.
• Wide Input Voltage Range: The TL7770-5CDW can operate with input voltages ranging from 2.7V to 18V, making it suitable for a wide range of electronic devices.

Advantages and Disadvantages

Advantages: - High precision output voltage regulation - Low dropout voltage ensures efficient power conversion - Adjustable output voltage for versatile applications - Built-in current limiting and thermal shutdown protection - Wide input voltage range allows compatibility with various devices

Disadvantages: - Limited output current capacity (up to 1A) - Requires an external resistor for output voltage adjustment

Working Principles

The TL7770-5CDW is based on a linear voltage regulator architecture. It utilizes a feedback mechanism to compare the output voltage with a reference voltage and adjusts the internal circuitry to maintain a stable output voltage. The IC regulates the output voltage by controlling the flow of current between the input and output terminals, ensuring that the desired voltage is maintained even under varying load conditions.

Detailed Application Field Plans

The TL7770-5CDW is commonly used in the following applications:

1. Power Supply Units (PSUs) for consumer electronics
2. Battery-powered devices requiring stable voltage supply
3. Automotive electronics
4. Industrial control systems
5. Telecommunications equipment

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator IC with similar features and specifications.
2. LT1083: A high-current, adjustable linear voltage regulator IC suitable for demanding applications.
3. LM7805: A fixed-output voltage regulator IC providing a stable 5V output.

These alternative models offer different voltage ranges, current capacities, and package options to cater to diverse application requirements.

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