LP3986BL-2518

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The LP3986BL-2518 is an adjustable linear voltage regulator with an output of 1.85 V to 18 V with an adjustable current of 250 mA. It has been designed for applications requiring high power and low temperature rise performance, such as LED lighting and portable electronics.

Application field: The LP3986BL-2518 can be used to power a wide range of applications, from automotive and industrial, to consumer and wireless peripherals. It is designed for applications requiring low noise output and high power efficiency, such as white LED and BSI camera applications. It is suitable for use with low-power, DC/DC and switching converters, as well as battery chargers.

Working principle: The LP3986BL-2518 linear voltage regulator has three main components: a voltage reference, an error amplifier, and a pass element. The voltage reference is used to provide a stable and accurate reference voltage to the error amplifier. This is compared to an input voltage of up to 18 V, and a voltage transfer ratio is then adjusted by the error amplifier in order to regulate the output voltage. This is then passed through the pass element, which is composed of a power MOSFET. The output voltage is then determined by the ratio of the input voltage to the error amplifier ratio.

The LP3986BL-2518 linear voltage regulator also features a power-good output for monitoring the output voltage, which is activated when the output voltage is within its specified range. Additionally, the voltage error amplifier features an adjustable soft-start to offer a controlled start-up sequence. Lastly, the output voltage can be set via an external resistor divider.

The LP3986BL-2518 linear voltage regulator is ideal for applications requiring both high efficiency and high power, such as LED lighting and portable electronics. Its adjustable current of 250 mA makes it suitable for a variety of applications, while its adjustable output voltage of 1.85 V to 18 V makes it suitable for use in automotive, industrial, consumer and wireless applications.

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