STMicroelectronics L4947PD013TR

STMicroelectronics Part Number L4947PD013TR（PMIC - Voltage Regulators - Linear）, developed and manufactured by STMicroelectronics, 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 STMicroelectronics L4947PD013TR, a cutting-edge power management IC designed to revolutionize the way electronic devices are powered. With its advanced features and versatile application fields, this product is set to redefine the power management landscape. The L4947PD013TR boasts a wide input voltage range of 4.5V to 60V, making it suitable for a wide range of applications. Its high efficiency and low quiescent current ensure optimal power usage, resulting in longer battery life and reduced energy consumption. Additionally, its integrated protection features such as overvoltage, overcurrent, and thermal shutdown ensure the safety and reliability of your devices. This power management IC is perfect for a variety of application fields. In automotive applications, it can be used to power infotainment systems, advanced driver-assistance systems, and electric vehicle charging stations. In industrial applications, it can be utilized in motor control systems, power supplies, and lighting systems. It is also ideal for consumer electronics, including smartphones, tablets, and wearable devices. The L4947PD013TR is not only highly efficient and reliable but also compact and easy to integrate into existing designs. Its small footprint and low profile make it suitable for space-constrained applications. With its exceptional performance and wide range of applications, the STMicroelectronics L4947PD013TR is the ultimate power management solution for the modern world.

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. When should a linear regulator be used instead of a switching regulator?

  In low-power and low-frequency application scenarios, a linear regulator should be used instead of a switching regulator.
  Linear regulator Suitable for low-power and low-frequency applications, with simple circuit structure, low noise and good stability. They control the output voltage of the transistor through a current amplifier to keep the output voltage stable. This working mode makes linear regulators perform well in low-power and low-frequency applications, although they are less efficient and generate more heat, and their application range is limited. In contrast, switching regulators use high-frequency pulse modulation technology to convert input voltage into a stable output voltage. They have the advantages of high efficiency, small size and fast response, and are suitable for high-power and high-frequency applications. Therefore, when the application requirements are not the main considerations for circuit complexity and cost, but have high requirements for the stability and

• 3. What are the three types of voltage regulator?

  The three types of voltage regulators include the contact voltage regulator, the transistor regulator and the integrated circuit regulator.
  Contact voltage regulator: This is the type of voltage regulator used earlier. Its working principle is based on the vibration of the contact, but there is mechanical inertia and electromagnetic inertia, resulting in low voltage adjustment accuracy. Large, poor reliability, and short life, so it has been eliminated.
  Crystal tube regulator: With the development of semiconductor technology, the transistor regulator becomes the mainstream. It uses a triode for voltage adjustment. Compared with the contact -type voltage regulator, the advantages of the transistor regulator is that the response speed, high efficiency, small volume, light weight, and not easily affected by external magnetic fields are widely used.
  Integrated circuit regulator: Integrated circuit regulator is a new type of voltage regulator developed in recent years. It integrates mult