TPS799L57YZYR

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PMIC - Voltage Regulators - Linear

The TPS799L57YZYR voltage regulator is a five-terminal device designed for linear voltage regulation in digital systems. This device provides a programmable output range from 0.22V to 37V and up to an output current of 300mA, as well as low output noise, high efficiency, and good load and line regulation.The TPS799L57YZYR is ideal for applications such as mobile phones, lithium-ion battery-maximizing power supplies, system power controllers, voltage regulation, memory protection, audio/video processing, and motor control.

The TPS799L57YZYR is a linear voltage regulator built around a DMOS (via-hole) FET package. An input voltage applied to the input pin is regulated down to the output voltage by a process of linear regulator, where the input voltage is converted to an equivalent current into the DMOS FET. This current then passes through the FET to the output voltage. Feedback circuitry is employed to maintain the output voltage with respect to the input voltage.

The main performance parameters of the TPS799L57YZYR are its output voltage range, output current, and input voltage range. The output voltage range is adjustable from 0.22V to 37V, and the output current can be set from 0mA to 300mA. The input voltage ranges from 1.2V to 5.5V, making it suitable for use in battery-powered systems. The maximum quiescent current is typically under 2mA, ensuring low power consumption for portable applications.

The TPS799L57YZYR also employs load and line regulation to provide stable output. Load regulation refers to the process of maintaining the output voltage in the presence of a varying load current. Line regulation, on the other hand, is the process of maintaining the output voltage even when the input voltage varies. The TPS799L57YZYR has an excellent load regulation of 0.6mV and excellent line regulation of 0.2mV, making it suitable for use in precision applications.

The TPS799L57YZYR also features a variety of other features and protections. These include thermal protection, current limit protection, reverse current protection, power up/down sequence control, and soft start. The thermal protection function keeps the temperature of the device within a safe operating range, while the overcurrent protection prevents the device from being damaged due to excessive current. The reverse current protection function and the power up/down sequence control ensure that the device is not damaged due to incorrect wiring or incorrect switching of power. Finally, the soft start feature provides a gradual and controlled increase in load current, preventing abrupt current surges.

In summary, the TPS799L57YZYR is an ideal linear voltage regulator for various applications. It has an output voltage range from 0.22V to 37V and up to an output current of 300mA, with excellent load and line regulation. It also features a variety of features and protections, such as thermal protection, current limit protection, reverse current protection, power up/down sequence control, and soft start.

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