KA431ADTF Integrated Circuits (ICs)

Power Management Integrated Circuits (PMIC) is an electronic component used for modern electronic systems, offering comprehensive and efficient power management for the system. The PMIC components typically provide multiple voltage rails to satisfy the demands of discrete blocks of modern electronic systems. Among different parts of PMIC, a Voltage Reference component is particularly useful for ICs that need precise and stable reference voltages. KA431ADTF is one of the voltage reference components from PMIC family.

KA431ADTF is a precision three-terminal adjustable shunt regulator. It has integrated bandgap voltage reference, amplifier, and over-temperature protection. The bandgap voltage reference can be adjusted to supply a precisely regulated output voltage. The output voltage of the KA431ADTF is programmed through an external resistor divider network. The advantage of the KA431ADTF is that it can establish a precise output voltage that is insensitive to fluctuations in temperature and line input voltage. This makes it suitable for applications that need an accurate and precisely programmable voltage reference.

The KA431ADTF has numerous applications. It can be used in various electronic systems, such as automotive systems, consumer applications, medical devices, industrial control systems, and computers. It is particularly useful for power supplies and battery chargers, as it can be adjusted to accurately provide a regulated output voltage without the use of a zener diode. For example, the KA431ADTF can be used to provide a regulated voltage for powering a microcontroller, such as one in a consumer device like a smart phone.

In terms of its operation, the KA431ADTF works by using its integrated bandgap voltage reference to control the output voltage, regardless of the changes in the line voltage or temperature. The bandgap reference has a temperature coefficient of 10 ppm/°C, so it can provide an accurate reference voltage over a wide range of temperatures. The voltage reference is used to control an internal amplifier, which manages the output voltage. The output voltage is programmed with an external resistor divider network. This allows the output voltage to be adjusted to the desired level.

Overall, the KA431ADTF is a precision three-terminal adjustable shunt regulator, with integrated bandgap voltage reference, amplifier and over-temperature protection. It is suitable for many applications, such as powering microcontrollers in consumer devices, providing a regulated voltage for battery chargers, or providing an accurate reference voltage for various types of power supplies. The KA431ADTF can be programmed through the use of an external resistor divider network, and its integrated bandgap voltage reference provides a precise and stable output voltage that is insensitive to fluctuations in either line voltage or temperature.