L4938EDTR-E

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The L4938EDTR-E is a low dropout voltage regulator (LDO) which has a wide range of applications. With a low dropout voltage of only 0.5V at 1A, this device can be used in various power applications that require low voltage regulation. Its adjustability, low quiescent current, and wide temperature range make it an ideal choice for customers looking for fixed-voltage or adjustable-voltage solutions.

The L4938EDTR-E is a three-terminal voltage regulator, consisting of an output, a ground and an adjustable-voltage input. An internal series reference voltage together with external resistors and a bypass capacitor, is used to form a voltage-divider circuit and provide the necessary biasing voltage to the LDO. This voltage is compared to an internal reference voltage. Depending on the output voltage setting, either a p-channel MOSFET or a p-channel FET is used to adjust the output voltage. If a p-channel MOSFET is used, the output voltage is calculated as Vout = Vin x (R2 / (R1 + R2)) +Vref, and if a p-channel FET is used, the output voltage is calculted as Vout = Vin x (Rref / R1) +Vref. In both cases, the L4938EDTR-E is able to accurately produce an output voltage that is adjustable within a wide range, from 0.8V to 4.8V.

The L4938EDTR-E is a high-efficiency, low dropout voltage regulator designed for a wide range of applications. It features low quiescent current of 1.8mA and a wide operating temperature range from -40 to +85 degrees Celsius. Its built-in over-current and thermal protection facilitates safe operation and extends the lifetime of the device. Furthermore, it is equipped with an active-high enable pin which is used to disable the device when not in use, and a bypass capacitor which reduces output voltage noise.

The L4938EDTR-E is an ideal choice for customers looking for linear voltage regulators. Its low dropout voltage, adjustable output voltage and wide operating temperature range make it an appealing choice for battery-powered applications. Its low quiescent current and bypass capacitor make it a great choice for noise-sensitive applications. Its enable pin makes it suitable for remote enable/disable applications, and its over-current and thermal protection add an extra layer of reliability. With its wide range of features, the L4938EDTR-E is an excellent choice for a variety of linear voltage regulator applications.

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