TPS7B4250QDBVRQ1

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TPS7B4250QDBVRQ1 is a low noise, low dropout (LDO) linear voltage regulator, designed specifically to meet the requirements of the industrial and automotive sectors, which are often exposed to extreme temperatures and harsh conditions. The device provides good power supply noise performance, with a PSRR (power supply rejection ratio) of 80dB and a noise floor as low as 10uV/sqrt(Hz). The TPS7B4250Q is available in a 2mmx3mm, 5-lead PowerPAK SOT-223 package, making it an ideal choice for space-constrained applications. This device is capable of delivering up to 2A of continuous current, and can operate over a wide input voltage range of 2.7V to 5.5V. It also features an active-low enable pin, used to enter power-down mode.

The TPS7B4250Q is primarily used as a step down regulator in applications where a low dropout voltage and high power supply rejection performance is desired. Typical applications for the device include embedded systems requiring low noise and low power operation, such as industrial automation, network appliances, and automotive infotainment systems.

The TPS7B4250Q operates using a standard 3-electrode linear regulator topology. An input voltage is applied to the device, and the output is regulated by an internal pass transistor. The output voltage is set using an error amplifier, which compares the actual output voltage with a reference voltage. The output voltage is adjusted based on the output of the error amplifier, which controls the gate voltage of the pass transistor.

The TPS7B4250Q has additional features designed to improve performance and protection, such as thermal shutdown, short circuit protection and over-voltage protection (OVP). These features help to ensure safe and reliable operation in potentially hazardous conditions. The device is also designed to operate over an extended temperature range of -40°C to +125°C.

In summary, the TPS7B4250Q is a high-performance linear voltage regulator, designed to meet the needs of demanding industrial and automotive applications. It offers a low dropout voltage, excellent power supply rejection performance and high current capability, in a small, power-saving package. The device is suited for a wide range of step down applications requiring good noise performance, low power consumption and reliable protection.

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