LP3853ESX-3.3

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The LP3853ESX-3.3 is an adjustable linear voltage regulator with a wide input voltage range, allowing the user to select from 3.3 to 30 V as the output voltage. It is a low-voltage, low-noise voltage regulator that offers a maximum output current of 250mA and a wide input voltage range. This voltage regulator is ideal for applications such as embedded systems, industrial, and instrumentation.

The LP3853ESX-3.3 is a high-performance, cost-effective voltage regulator that features a host of features, including a minimum dropout voltage of 2.0V, maximum efficiency of 98%, low-ripple output capacitor, and adjustable terminal voltage. It also has a quiescent current of 8µA and an internal short-circuit protection. This voltage regulator is widely used in applications where high voltages and current capacities of up to 10A are needed.

There are two basic modes in which the LP3853ESX-3.3 regulator operates. The first mode is the "fixed" mode, in which a consistently accurate regulated voltage is provided through the output terminal regardless of external conditions. The second mode is the "variable" mode, which allows for adjustment of the output voltage based on conditions such as ambient temperature and load current.

The LP3853ESX-3.3 voltage regulator uses a Zener diode-based shunt regulation circuit. When the input voltage being regulated is at or above the expected output voltage, an external current source is used to provide current to the shunt regulator. This current is regulated by an NSC LM393 voltage comparator, which senses the output voltage and adjusts the current accordingly. When the input voltage is below the expected output voltage, an NSC LM353 voltage regulator is used to maintain the output voltage.

The LP3853ESX-3.3 voltage regulator is designed to improve the reliability and efficiency of power delivery in a wide range of industrial, automotive, and consumer electronics applications. Its low-noise output capacitor, adjustable terminal voltage, and adjustable current limit make this voltage regulator an ideal choice for multiple-output applications. The device is also designed to reduce the size of the design by eliminating external parts, such as resistors, inductors, and diodes. Additionally, its low quiescent current makes it perfect for applications where fixed voltage is needed but power conservation is required.

The LP3853ESX-3.3 voltage regulator is a cost-effective, low-noise, and low-voltage solution for a variety of noise-sensitive applications. With its adjustable output voltage range and adjustable terminal voltage, the device offers designers flexibility for different design parameters and requirements. The device is designed with an internal short-circuit protection, low quiescent current, and Zener diode-based shunt regulation for maintaining a consistent and accurate output voltage. Additionally, its high efficiency ensures that it is highly suitable for audio and video equipment, motor controls, and automotive systems.

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