KA79M05RTF

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The KA79M05RTF linear voltage regulator is a very useful and versatile piece of equipment for those who need stable and accurate voltage supply. This device is a 3-terminal device, capable of supplying a consistent output of five volts from an input voltage range of between 2.85V-30V. It is a power management integrated circuit (PMIC), and it is useful for ensuring custom voltage requirements for a variety of applications.

Features

• Input voltage range of 2.85V-30V
• Excellent line regulation of 0.1%
• Minimum current load of 1mA
• Thermal shut-down protection
• Output voltage preset of 5V ±2%

Applications

The KA79M05RTF is designed to reliably provide a consistent output voltage of 5V across a wide range of conditions and applications. It is a versatile device and is suitable for use in many areas, including mobile phones, notebook computers, personal digital assistants, automotive systems, process control and other electronic applications where a stable 5V output is required.

The KA79M05RTF can also be used as an alternative to traditional linear regulators in situations where low-noise performance is important, or where high-efficiency systems are preferred. The device is also well suited for supplying 5V power to low-current logic circuits.

Working Principle

The KA79M05RTF is a linear voltage regulator, meaning it takes an input voltage level from one source and converts it to a stable output voltage. To do this, the device uses an active series pass device, consisting of a voltage reference, an error amplifier and a series pass transistor. These components form a closed loop feedback system, which compares the input and output voltages and adjusts the current flow through the pass device to keep the output voltage constant.

When the input voltage is greater than the reference voltage, the error amplifier increases the current through the pass transistor, thus increasing the output voltage. Conversely, when the input voltage is lower than the reference voltage, the error amplifier decreases the current through the pass device, thus decreasing the output voltage.

In addition to this, the KA79M05RTF also incorporates a variety of protective features, such as thermal shut-down protection, to ensure reliable operation under varying load and temperature conditions.

Conclusion

The KA79M05RTF is an excellent linear voltage regulator, capable of providing a consistent 5V output voltage from a wide range of input voltages. It is a versatile device, suitable for use in many areas, such as mobile phones, notebook computers, and automotive systems. The device also incorporates various protective features and a low-noise performance. Ultimately, it is an ideal choice for those who require a reliable and accurate voltage supply.

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