Fairchild Semiconductor KA79L15AZBU

Fairchild Semiconductor Part Number KA79L15AZBU（PMIC - Voltage Regulators - Linear）, developed and manufactured by Fairchild Semiconductor, distributed globally by Jinftry. We distribute various electronic components from world-renowned brands and provide one-stop services, making us a trusted global electronic component distributor.

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Introducing the Fairchild Semiconductor KA79L15AZBU, a high-performance voltage regulator designed to provide a stable and reliable power supply for a wide range of applications. With its exceptional features and versatility, this product is set to revolutionize the electronics industry. The KA79L15AZBU is a 3-terminal negative voltage regulator that can deliver a fixed output voltage of -15V with a maximum output current of 100mA. Its low dropout voltage ensures efficient power conversion, making it ideal for use in various electronic devices. The device also incorporates built-in thermal shutdown and current limiting protection, ensuring the safety and longevity of your circuits. This voltage regulator is suitable for a multitude of application fields. It can be used in automotive electronics, industrial control systems, consumer electronics, and more. Whether you need to power microcontrollers, sensors, or other sensitive components, the KA79L15AZBU is the perfect choice. With its compact size and easy-to-use design, this voltage regulator can be seamlessly integrated into any circuit board. Its robust construction guarantees excellent performance even in harsh environments, making it a reliable choice for demanding applications. In conclusion, the Fairchild Semiconductor KA79L15AZBU is a top-of-the-line voltage regulator that offers exceptional features and reliability. Its wide range of applications and user-friendly design make it a must-have for any electronics enthusiast or professional. Upgrade your power supply system today with the KA79L15AZBU and experience the difference it can make in your projects.

Voltage Regulators-Linear is an electronic device used to convert an unstable DC voltage into a stable DC voltage. It regulates the voltage through an active component (such as a transistor or field effect tube) and a feedback network to ensure that the output voltage remains constant within a certain range. Linear regulators usually operate under low input voltage changes and load changes, and are able to provide a very clean and smooth output voltage.

Voltage Regulators-Linear has a wide range of applications, covering almost all electronic devices requiring a stable DC power supply. In the field of consumer electronics, linear voltage regulators are widely used in mobile phones, tablets, laptops and other portable devices to provide stable voltage support for core components such as processors, memory and display screens. In the field of industrial automation and instrumentation, linear voltage regulators are often used in precision measuring instruments, sensor signal processing and other occasions because of their low noise and high precision characteristics. In addition, linear regulators also play an indispensable role in areas such as medical equipment, aerospace, and automotive electronics, where the quality of the power supply is extremely high. For example, in medical equipment, linear regulators ensure the power stability of devices such as pacemakers and monitors, ensuring the safety of patients.

• 1. What are the characteristics of linear regulators?

  Linear regulators have the characteristics of low cost, small package, few peripheral devices and low noise. There are many types of linear regulator packages, which are very suitable for use in LCD color TVs. For fixed voltage output applications, only 2-3 small capacitors are needed to form the entire solution. Ultra-low output voltage noise is the biggest advantage of linear regulators. The output voltage ripple is less than 35V (RMS), and it has an extremely high signal-to-noise control ratio, which is very suitable for powering small signal processing circuits that are sensitive to noise.

• 2. What is the difference between linear regulators and switching regulators?

  There are significant differences between linear regulators and switching regulators in terms of working principles, efficiency, stability, cost and application range.
  Working principle:
  Linear regulators achieve the function of stabilizing the output at a set value by adjusting the voltage difference between the output voltage and the input voltage. It achieves stable output voltage by controlling the conductivity state of the power transistor.
  The switching regulator converts the input voltage into a pulse signal transmission and smoothes the output through a filter by quickly switching between the input and output ends to achieve the function of stabilizing the output at the set value. The switching regulator uses PWM (pulse width modulation) control to control the output voltage by adjusting the time duty ratio of the high and low levels within a cycle.
  Efficiency:
  The efficiency of the linear regulator is relatively low, usually between 60% and 70%. When the voltage differenc

• 3. What are the disadvantages of linear regulators?

  The disadvantage of linear regulators is that they are not efficient and can only be used in voltage reduction applications. The efficiency of a linear regulator depends on the ratio of output voltage to input voltage: turbidity = Vo: Vi. For example, for ordinary linear regulators, when the input voltage is 5V and the output voltage is 2.5V, the efficiency is only 50%. For ordinary linear regulators, about 50% of the electrical energy is converted into "heat" and lost, which is also the main reason why ordinary linear regulators are prone to heat when working. For LDO, due to its low voltage difference, the efficiency is much higher. For example, when the input voltage is 3.3V and the output voltage is 2.5V, its efficiency can reach 76%. Therefore, in LCD color TVs, in order to improve the utilization rate of electrical energy, ordinary linear regulators are used less, while LDOs are used more.