BH18M0AWHFV-TR

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Linear Voltage Regulators (LVRs) are an important voltage regulation technology and are widely used in a variety of applications. BH18M0AWHFV-TR is an example of an LVR used in portable electronics and embedded device applications. In this article, we will discuss the application field and the working principle of BH18M0AWHFV-TR.

Application Field of BH18M0AWHFV-TR

BH18M0AWHFV-TR is part of the PMIC (Power Management IC) family. It is a low-dropout linear regulator, ideal for handheld battery-powered applications. It can be used in portable electronic devices such as mobile phones, notebooks, tablets, wearable devices and IoT (internet of things) devices. It is designed to provide high-noise immunity, excellent line and load regulation, and fast transient response. The low dropout voltage and high output current capability makes it suitable for use in power-sensitive applications.

BH18M0AWHFV-TR is available in a DFN package and can operate from an input voltage ranging from 2.5V to 6V. The output voltage range is from 1.2V to 5V. The maximum output current is 1A. It features a wide operating temperature range of -40°C to 125°C, making it suitable for use in extreme environmental conditions.

Working Principle of BH18M0AWHFV-TR

At its core, BH18M0AWHFV-TR is an LVR which uses a series pass element to regulate an output voltage by dropping a fixed amount of voltage from the input voltage. It is designed to provide fast transient response, overcurrent protection, and short-circuit protection.

The LVR’s output voltage is determined by the reference voltage generated by an internal reference circuit. The reference voltage is buffered and compared to the feedback voltage which is a fraction of the output voltage. The difference between the reference and feedback voltages is then amplified and drives the pass element to regulate the output voltage.

The pass element is connected in series with the load and input voltage source. It regulates the output voltage by dropping a fixed amount of voltage from the input voltage and maintaining it at the desired output voltage level. The pass element is designed to be able to dissipate large amounts of power as needed. BH18M0AWHFV-TR also features an overcurrent protection circuit which shut downs the pass element when the output current exceeds a certain level.

BH18M0AWHFV-TR is a highly efficient LVR, with an efficiency of up to 92%. The low quiescent current of 20µA in shutdown mode helps to extend battery life and reduce power consumption in portable applications.

In summary, BH18M0AWHFV-TR is a low-dropout linear regulator used in handheld battery-powered applications. It is suitable for use in power-sensitive applications, and features a wide operating temperature range, fast transient response, overcurrent protection, and low quiescent current. Its low cost and high efficiency make it a popular choice for many applications.

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