TS2951CS30 RLG

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The TS2951CS30 RLG is a low dropout positive linear voltage regulator made by STMicroelectronics. It is a three-terminal device with an output voltage accuracy of 1.2%. The device consists of an integrated circuit, an input capacitor, and an output capacitor. It regulates an input voltage of 4V-37V to generate a stable output voltage of 5V to 33V. The device is designed for automotive and industrial applications that require stable outputs such as serial communication, power supplies, and power management systems.

Application Field

The TS2951CS30 RLG is designed for a variety of automotive, industrial, and other applications. In automotive applications, the device is used for controlling the spark plugs, providing regulated power to remote sensors, powering up the start/stop system, and mitigating low battery input voltage conditions. In industrial applications, the device is used for regulating 24V power supplies, providing power to digital isolators, and supplying voltage references for data converters. Additionally, it can also be used in various consumer applications, such as mobile phones, gaming consoles, and set top boxes.

Working Principle

The TS2951CS30 RLG is a low dropout (LDO) voltage regulator, which uses a FET-based linear topology to generate a stable output voltage from a higher input voltage. The device uses a constant-current mode for controlling the output voltage, resulting in a very low dropout voltage. It also features a high current capability in dropout mode and thermal shutdown protection, making it an ideal solution for various high power applications. The device also utilizes an internal feedback network, featuring an adjustable output voltage option and an error amplifier, to monitor and regulate the output voltage.

The main functions of the device include input voltage regulation, output voltage regulation, current limiting, and thermal shutdown. The input voltage regulation limits the amount of current that can be drawn from the input voltage source, while the output voltage regulation keeps the output voltage stable under varying load conditions. Current limiting helps protect the load and the device itself, while thermal shutdown shuts down the output voltage if the device becomes excessively hot.

Overall, the TS2951CS30 RLG is a highly efficient and reliable low dropout linear voltage regulator. It offers a high performance solution for a variety of automotive, industrial, and other applications. The device is designed to provide a stable output voltage under varying input voltages and load conditions, making it an ideal choice for powering up remote sensors and other low voltage applications.

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