EL5225IRZ-T13

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The EL5225IRZ-T13 is designed to deliver highly precise voltage regulation in the industrial and medical electronics field. It is part of a family of low-noise and low-dropout voltage regulators from Linear Technology, intended for situations where high-ripple, fast transient response and operation over a wide temperature range is required. This particular regulator can deliver an output current of up to 2 A and is suitable for use in high-density power designs where space is at a premium.

The EL5225IRZ-T13 is available in the industry-standard SOT-23-5L package and offers a fixed 3.3 V, 5 V, and adjustable output options. It also features an enable pin that can be used to turn the regulator on and off and an overvoltage protection input pin that enables the regulator to shut down if the input voltage exceeds the maximum allowable level.

The EL5225IRZ-T13 has a dropout voltage of only 900 mV (typical) at 1A load and is compliant with the latest European low-voltage directive. It offers excellent line and load regulation (typically 1.5 mV at 1 A) and current limiting and thermal protection. These features together with its low-noise operation (only 42 µVrms at 1 A load) make it ideal for applications requiring high performance.

The EL5225IRZ-T13 operates in a linear voltage-regulation mode and makes use of an internal NPN pass transistor and a compensation circuit to maintain the output voltage. The compensation circuit ensures that the output remains stable under varying conditions and maintains the same voltage level regardless of the line or load variations. A voltage reference is then used to set the output voltage and a feedback network is employed to control the regulation loop.

The input-output regulation loop is designed to ensure that stability is maintained across the full output voltage range of the device and that the output voltage is maintained within a specified band. Other features such as reverse-current protection and input-current limiting are incorporated to further guarantee the reliability of the EL5225IRZ-T13.

The EL5225IRZ-T13 is a robust and reliable voltage regulator that is well-suited for industrial and medical electronics applications. It offers excellent performance over a wide temperature range, fast transient response, and low-ripple operation. In addition, its ability to provide high current output, reverse-current protection, and current-limiting makes it suitable for high-density designs. As such, the EL5225IRZ-T13 is an ideal choice for applications that require high performance and precise voltage regulation.

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