TPS22964CEVM-029

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Evaluation and demonstration boards and kits are often used to test and demonstrate for newly developed chips. An example is the TI TPS22964CEVM-029 evaluation module. It is designed to demonstrate and evaluate the TPS22965, a member of the TPS2296x series of low-dropout (LDO) linear voltage regulators, featuring a POK (Power-OK) output with push-pull and open-drain capability and adjustable current limit settings.

This evaluation module provides a complete system for evaluating the TPS22965 regulator, with the adjustable current limit settings ranging from 0.5A to 0.9A and capable of input and output voltage ranging from 2.25V to 5.5V.

The TPS22964CEVM-029 application field includes automotive, communication and industrial custom designs. With this LDO linear regulator, designers benefit from its wide input voltage range, low dropout voltage and adjustable output current limit. This evaluation module is used to evaluate TI’s industry-standard linear voltage regulators, with features such as adjustable output current limit, extended input voltage range and rail-to-rail output voltage swing.

The working principle behind the TPS22964CEVM-029 evaluation module is based on the ability of the TPS22965 regulator to track an input from its reference voltage, through series or parallel pass transistors, to its output. The TPS22965 regulator works by feedback tracking the output voltage back to the input. This allows it to accurately maintain the output at a fixed voltage, even when the output load varies. The adjustable current limit setting enables the regulator to precisely limit the output current and allows it to be used in applications where currents beyond the specified limit could cause damage.

The module also includes an LED indicator-driven Power-OK (POK) output, which is activated by a low-power resistor connected to the Enable pin. The LED is used to indicate that the output voltage has reached a certain preset level, which signals that the output voltage is good and stable. The pin also serves as an enable input, allowing designers to enable and disable the output voltage.

The evaluation module also includes external components such as an adjustable potentiometer for setting the output voltage, a voltage feedback amplifier, an enable input buffer, and a standard 5V voltage reference used for setting the desired output voltage. Overall, the TPS22964CEVM-029 evaluation module provides an excellent platform for testing and evaluating the TPS22965, as well as other LDOs in the TPS2296x series, in automotive, communication and industrial applications.

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