L4938ED

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The L4938ED Voltage Regulator is a high-efficiency, high-performance linear voltage regulator designed to supply a steady, adjustable output voltage for a variety of applications. This linear voltage regulator offers excellent stability and efficiency, allowing for longer device lifetime and easier circuit designs.

This voltage regulator features an adjustable voltage range of 0.8V to 5V and can provide a maximum output current of up to 100mA. It also features a large maximum input voltage range of up to 18V, a small input-output voltage differential, and high power efficiency of up to 90%. Other features include low quiescent current, low quiescent temperature, and a wide temperature range.

L4938ED voltage regulators have a variety of applications and are commonly used in industrial, automotive, and medical environments. They are used in systems such as power supplies, point-of-load regulators, lighting, control systems, and medical diagnostic equipment. They can also be used in battery-powered applications, DSPs, microcontrollers, and analog circuits. This voltage regulator can be used for both high and low input voltages and can be used to regulate current, voltage, or both simultaneously.

The working principle behind the L4938ED voltage regulator is based on a linear voltage regulator circuit, which utilizes a p-channel MOSFET and an N-channel MOSFET in an inverting buck-boost topology. The P-channel MOSFET takes on the varying input voltage and is used to drive the output voltage, while the N-channel MOSFET helps protect the regulator from excessive input voltage and current. The circuit allows for the voltage regulator to maintain its output voltage even when the input voltage and current have a wide range of fluctuations.

The L4938ED also features overvoltage, overtemperature, and short-circuit protection, making it a safe and reliable regulator suitable for a wide variety of applications. It is also pin-for-pin compatible with its predecessors, the L293ED and L5633ED, making it an excellent option for those who want an upgraded voltage regulator without having to make any changes in their existing system.

The L4938ED voltage regulator is a simple, efficient, and reliable device that is suitable for a wide range of applications. With its adjustable voltage range, high power efficiency, and overvoltage, overtemperature, and short-circuit protection, this linear voltage regulator delivers excellent stability and performance. It is an ideal solution for a variety of applications, including power supplies, point-of-load regulators, lighting, control systems, and medical diagnostic equipment.

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