L4938EPD13TR Integrated Circuits (ICs)

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The L4938EPD13TR is an integrated linear voltage regulator that is designed for automotive applications, particularly those that require a wide input voltage range (from 4.5V to 40V). This device is able to supply fixed and adjustable output voltages from 4.5V to 38V and up to 1.5A of output current. Its integrated current-limiting and thermal shut-down circuits help to provide excellent protection against excessive output current and heat. The regulator also offers excellent line and load regulation, as well as low dropout and output noise, making it an excellent choice for automotive power supply applications.

The L4938EPD13TR regulator is comprised of a linear adjustable regulator and a three-terminal fixed voltage regulator. The linear adjustable regulator is the main component and is responsible for regulating the output voltage. It consists of an operational amplifier, a voltage reference, and a control transistor. The voltage reference sets the output voltage level and is set by an external resistor, while the operational amplifier acts as an error amplifier, controlling and maintaining the output voltage. The control transistor acts as a current source and is used to regulate the load current, while the three-terminal fixed voltage regulator is responsible for providing short-circuit protection and current limiting.

The L4938EPD13TR is designed for automotive applications that operate over a wide temperature range from -40°C to +85°C. Its low-power consumption makes it ideal for automotive applications that need to achieve low-power operation. Its integrated current-limiting and thermal shut-down circuits help to provide excellent protection against excessive output current and heat. Its low-dropout and low-noise performance make it an ideal choice for automotive power supply applications.

In conclusion, the L4938EPD13TR is a highly-integrated linear voltage regulator that is designed for automotive applications such as motor, lamp and battery charging circuits. Its wide input voltage range, current limiting and thermal shut-down features, and excellent line and load regulation make it an excellent choice for automotive power supply applications. Its low-power consumption and its wide temperature range makes it suitable for using in automotive applications that require low-power operation over a wide temperature range.

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