UA7905CKTTR

The UA7905CKTTR is a voltage regulator manufactured by Texas Instruments, designed to provide a stable output voltage of -5V. This component is part of the 7900 series of voltage regulators, which are known for their reliability and efficiency in various electronic applications.

Key Features:

1. Output Voltage: The UA7905CKTTR delivers a fixed output voltage of -5V, making it suitable for powering negative voltage rails in circuits.

2. Input Voltage Range: It can accept a wide input voltage range, typically from -7V to -25V, allowing for flexibility in design and compatibility with various power supply configurations.

3. Output Current: The regulator can provide a maximum output current of up to 1A, which is sufficient for many low to moderate power applications.

4. Thermal Protection: The UA7905CKTTR includes built-in thermal overload protection, which helps prevent damage due to overheating, ensuring reliable operation even under heavy load conditions.

5. Short-Circuit Protection: This feature protects the device from damage in the event of a short circuit at the output, enhancing the robustness of the circuit.

6. Package Type: The UA7905CKTTR is typically available in a TO-220 package, which is a common choice for power devices due to its good thermal performance and ease of mounting.

7. Pin Configuration: The device has three pins: input, ground, and output. The pin configuration allows for straightforward integration into circuit designs.

8. Low Dropout Voltage: The regulator is designed to operate with a low dropout voltage, which means it can maintain regulation even when the input voltage is close to the output voltage.

Applications:

The UA7905CKTTR is widely used in various applications, including:

• Power supply circuits for analog devices
• Negative voltage generation in dual-supply systems
• Signal processing circuits that require a stable negative voltage
• Audio equipment and other consumer electronics

Performance Characteristics:

• Line Regulation: The device exhibits excellent line regulation, ensuring that variations in input voltage do not significantly affect the output voltage.
• Load Regulation: It also provides good load regulation, maintaining a consistent output voltage despite changes in load current.

Conclusion:

The UA7905CKTTR from Texas Instruments is a versatile and reliable negative voltage regulator that is well-suited for a variety of electronic applications. Its combination of features, including thermal and short-circuit protection, makes it a popular choice among engineers and designers looking for a dependable solution for generating negative voltages in their circuits.