KF25BD-TR Integrated Circuits (ICs)

Introduction

KF25BD-TR is an integrated voltage regulator that provides a solution for regulating output voltage. KF25BD-TR belongs to the linear voltage regulator family. The device is a fixed input voltage integrated voltage regulator with a wide operating temperature range and low quiescent current requirements. KF25BD-TR has low noise and good load regulation performance, and is especially suitable for applications in current-sensitive and voltage-sensitive environments, such as power management, telecommunications, consumer electronics, automobile control systems and other areas.

Application fields

KF25BD-TR is an excellent choice as a DC/DC regulator for a variety of applications, including power management, power supply protection and voltage conversion. Specifically, it is applicable in the following fields:

• Data processing systems and consumer electronics systems.
• Instruments and metering systems.
• Airborne and automotive systems.
• Computer peripheral products.

Furthermore, it is also capable of providing power output in demand such as LCD TVs, digital cameras, handheld devices, and personal computers.

Working principle

KF25BD-TR is a three-terminal integrated voltage regulator. This integrated voltage regulator regulates the output voltage by means of feedback control. The main component of KF25BD-TR is a voltage reference, an operational amplifier, and a series of transistors. The operational amplifier compares the input voltage and the output voltage. As the output voltage rises, the operational amplifier reduces the base current of the series of transistors, this reduces the voltage at the collector terminal, thus reducing the output voltage. When the output voltage is lower than the input voltage, the operational amplifier increases the base current of the transistors and strengthens the voltage at the collector terminal, thus increasing the output voltage. This is the basic principle of the internal feedback control of the linear voltage regulator.

KF25BD-TR provides various protection functions, such as output short circuit protection, overcurrent protection, overvoltage protection, overtemperature protection, and reverse connection protection. In the event of external faults such as short circuit, overvoltage and overcurrent, the external fault is detected and the device automatically shuts off the output voltage, so it is highly reliable. When the circuit fault is removed, the output voltage can be automatically reset.

Conclusion

KF25BD-TR is a linear voltage regulator that offers power supply solutions for power management, data processing systems, systems, instruments and metering systems, airborne and automotive systems, computer peripheral products, and other fields. Its feedback control system maintains the output voltage stable and reliable, and the built-in protection functions ensure the safety and reliability of the equipment.