S-13R1F20-A4T2U3

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Power Management ICs (PMICs) are components used to optimize power performance and the utilization of energy, and Voltage Regulators are components of a PMIC which manage and regulate voltages.  Linear regulators convert input voltage VIN into a constant output voltage VOUT. The S-13R1F20-A4T2U3 is a fixed-output, low dropout (LDO) voltage regulator, one sub-type of Linear Regulator.

The S-13R1F20-A4T2U3 is an 0.8V Fixed-Output Low Dropout linear regulator with a maximum of 1A output current and maximum dropout voltage of 0.6V, which means it needs a minimum VIN of 1.4V to meet the specified VOUT voltage under a load of 1A. The device consists of a voltage reference, error amplifier, output transistor, and a current limiter, and the current limiter can be enabled or disabled via an internal register. It has a 3wire Serial Peripheral Interface (SPI) that can be used to configure the device.

The S-13R1F20-A4T2U3 has a range of applications in powering digital logic circuits and ASIC and microprocessor circuits as it can provide 0.8V with GND for a low power system. It has a hot plug and soft start feature to provide robustness during power on and an over-temperature protection feature to protect the circuits from operation at excessively high temperatures.

In operation, the output voltage is determined by the following Voltage Reference equation: VOUT = VREF * (1+ R1/R2). VREF is set at 0.8V and is kept constant at all loads ensuring output voltage is always 0.8V. The device has an output delay and soft start circuit, which allows it to recover from minor power glitches, like power on glitches or supply voltage transients, and it can be programmed with the SPI interface to adjust these parameters.

The S-13R1F20-A4T2U3 combines low quiescent current operation and high-efficiency linear regulation with a range of power control and protection features. The versatility of the product makes it ideal for applications in digital logic, IC chips, and consumer electronics, such as power distribution, battery power management, and post-regulation.

Since its release, the S-13R1F20-A4T2U3 has received positive reviews from its users due to its easy-to-use features and robust performance. Its features include a high input voltage range, a low dropout voltage, and a low quiescent current operation, which makes it well suited for its intended applications. Moreover, its features make it an ideal choice for powering digital logic circuits, ASICs and microprocessors.

In conclusion, the S-13R1F20-A4T2U3 provides a fixed, 0.8V output voltage with an efficient, low quiescent current operation, and is suitable for powering digital logic, IC chips and consumer electronics. It comes with a range of power control and protection features, making it an ideal choice for post-regulation and battery power management applications.

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