A8287SLBTR

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The A8287SLBTR is a voltage regulator from Allegro Microsystems that belongs to the PMIC (Power Management Integrated Circuit) family, within the Voltage Regulators category and the Special Purpose subcategory. This particular device is a high-performance buck regulator, capable of delivering up to 8A of continuous output load and up to 10A of peak load 10µs long. It offers a wide array of features, and a variety of input and output voltage configurations, making it versatile solution for a wide range of application needs.

Application Field

The A8287SLBTR can be used to regulate and supply power in any application field where it is necessary to have an accurate and reliable output voltage. This device can be particularly useful in automotive applications, such as automotive infotainment, body control and powertrain (including hybrid vehicles) or general industrial applications, as it offers a wide input voltage range (from 3V to 36V). It can also be applies to communications and networking, IoT (Internet of Things) applications, power amplifiers, power supplies for data centers and battery management systems, among many other potential applications.

Working Principle

The A8287SLBTR is able to offer a powerful and reliable voltage regulation for any application by operating in one of three different modes: Pulse Width Modulation (PWM), Pulse Frequency Modulation (PFM), or Hybrid Mode. The Pulse Width Modulation mode provides improved current accuracy while the Pulse Frequency Modulation mode increases the efficiency of the drive, and it switches automatically between them in order to guarantee maximum efficiency. The Hybrid Mode combines the best of both worlds; the device will switch between PFM and PWM depending on the load, and will switch to a low-power standby mode when the output reach its nominal value.

The A8287SLBTR features a wide range of features for a more precise operation, such as programmable soft start, programmable thermal limits and output crowbar protection, among others. It also include input voltage protection, such as overvoltage protection, reverse protection and undervoltage protection, to guarantee the safety of the system and of its components.

In conclusion, the A8287SLBTR is a highly versatile voltage regulator with a wide array of configuration and protection features, suitable for any application that requires an accurate and reliable supply of power. It offer wide input and output ranges and its three operating modes guarantee an efficient and accurate voltage regulation.

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