S-817A28APF-CURTFG

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PMIC (Power Management ICs) are integrated circuits that are used to control and regulate the power supply in electronic systems. Linear voltage regulators, important components of power supplies, are used to regulate the supply voltage in circuits. One such voltage regulator is the S-817A28APF-CURTFG, which is designated as a “complete power regulation solution” with its remarkable features.

Application Field

The S-817A28APF-CURTFG is effective in a wide array of applications such as handheld consumer and communication devices, computing systems, and data acquisition systems. This regulator is suitable for powering memory and RF circuits, as is found in consumer devices. The adjustable output voltage range is from 0.8V to 4.25V. This makes it a reliable voltage source for systems that constantly require a low and stable voltage supply.

In addition to its wide application field, this regulator also comes with built-in protection mechanisms. It has a short-circuit protection, current limiting feature, thermal protection and under-voltage lockout. These features enable the voltage regulator to guard its power source, protecting it from potential hazards.

Working Principle

The working principle of the S-817A28APF-CURTFG is based on a conventional linear regulator. The device contains a P-MOSFET, which is the core of the regulator’s operation. Internally, this P-MOSFET works as a linear voltage regulator, allowing the regulator to control the voltage of its power source.

When the regulator is supplying power, the output voltage is compared to a reference voltage, typically provided by an adjustable resistor. In case of a voltage drop, the current that is created by the P-MOSFET is amplified and used to compensate for the drop. Due to this, the output voltage remains stable and relatively constant, sustaining the performance of the powered system.

The S-817A28APF-CURTFG also features an internal charge pump circuit. This circuit is used to generate a high boost voltage at the output, which significantly improves the power efficiency of the regulator. As a result, this voltage regulator is able to operate at very low input voltages.

Conclusion

The S-817A28APF-CURTFG is a linear voltage regulator designed for a wide variety of applications. By employing a conventional linear regulator, it is able to provide a stable supply voltage for systems that require low and constant voltage. Meanwhile, its internal charge pump circuit can generate boost voltages, delivering an efficient and reliable power source. With its combination of features, the S-817A28APF-CURTFG is an ideal voltage regulator for a variety of uses.

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