TL780-05CKC

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TL780-05CKC Linear Voltage Regulator is a three-terminal, 5V, positive-voltage regulator designed to provide a maximum output current of 5A and a maximum dropout voltage of 3.2V. The adjustable output voltage allows the user to optimize system performance. This device features a power-good signal, overcurrent protection, and thermal shutdown.

Introduction

TL780-05CKC Linear Voltage Regulators are designed to provide a constant voltage output when presented with a varying input voltage. They are designed to provide a regulated voltage output with a minimal amount of external components. This type of regulator is typically used in situations where a small load current is required and where regulation of the voltage is needed.

Application Field

The TL780-05CKC is ideal for use in a variety of applications including:

• Portable electronic devices
• Computers, electronic instruments and equipment
• Communications and telephony equipment
• Custom logic systems and power supplies
• Computer and microprocessor based equipment
• Lighting devices and display systems
• Automated test and measurement devices

Working Principle

The TL780-05CKC Linear Voltage Regulator is a three-terminal device. It contains an internal voltage reference, error amplifier, bandgap voltage reference, current sensing circuitry and a series pass transistor. The input voltage is compared to the internal voltage reference. If the input voltage is higher than the reference voltage, the error amplifier increases the duty cycle of the driver, which results in an increase in the output voltage. Conversely, if the input voltage is lower than the internal reference voltage, the error amplifier decreases the duty cycle of the driver, resulting in a decrease in the output voltage.

The TL780-05CKC also features an overcurrent protection circuit, a thermal shutdown comparator and a power-good signal. The overcurrent protection circuit monitors the output current, and if the output current exceeds a pre-determined level, the circuit shuts down the regulator. The power good signal will also go low if the output current exceeds its limit. The thermal shutdown comparator keeps the device from exceeding its temperature limit. If the temperature exceeds a pre-determined level, the comparator will shut down the device.

Conclusion

The TL780-05CKC is a three-terminal, 5V, positive-voltage regulator designed to provide a maximum output current of 5A and a maximum dropout voltage of 3.2V. It is suitable for a variety of applications, including portable electronic devices, computers, telecommunication equipment, and power supplies. It features a power-good signal, over-current protection, and thermal shutdown. Its internal components, such as the voltage reference, error amplifier, and current sensing circuitry, enable its voltage regulation capabilities.

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