ST1S50PUR Integrated Circuits (ICs)

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The ST1S50PUR is a DC-DC switching regulator that is often used in the field of power management integrated circuits (PMIC). The initial voltage output on the regulator is 5 V and is typically adjusted by external resistors, allowing for control of the resulting output voltage up to a maximum of 28 V.

When used for power management applications, the ST1S50PUR regulator works by converting the input voltage level, from either a buck or boost configuration, to an adjustable regulated voltage output. The voltage output is regulated through a wake up pin, typically held low, which is used by the regulator to determine whether it is in its normal mode or idle mode. The wake up pin is also used to control power-down, power save, and sleep modes.

The regulator can also be disabled by setting the wake up pin high. When the regulator is disabled, its output voltage will decline to whatever voltage level is present at the input source. This feature, combined with its ability to handle up to 28 V of input voltage, makes the regulator ideal for use in applications that require an adjustable regulated output voltage level, especially those that require a very low output voltage.

The ST1S50PUR regulator is manufactured using metal-oxide-semiconductor field-effect transistor (MOSFET) technology, which allows it to achieve a high switching frequency and tight regulation of the output voltage. MOSFET technology was first developed in the early 1960s and is one of the most widely used and cost-effective semiconductor technologies.

The ST1S50PUR regulator also offers a high efficiency, with a maximum value of 91%, which offers significant power savings for applications in which power use should be kept as low as possible. Additionally, this regulator also offers current protection and over-voltage protection, and it can be used on printed circuit boards that have over temperature protection. The regulator is also capable of being programmed to maintain a constant output voltage, regardless of changes in the input voltage, as well as changes in load current.

The ST1S50PUR from STMicroelectronics is a high performance DC-DC switching regulator ideal for a wide range of power management applications. Its high efficiency and adjustable regulated output voltage, along with its current protection, over-temperature protection, and over-voltage protection, make it an ideal choice for applications that require constant output voltage under varying input voltage and load current conditions.

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