S-13R1B2J-I4T1U3

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A voltage regulator is a device in the power management integrated circuits (PMIC) family that functions to maintain a steady output voltage in a circuitry. One such voltage regualtor is the S-13R1B2J-I4T1U3, which is specifically in the linear voltage regulation category. This article discusses the S-13R1B2J-I4T1U3 voltage regulator’s application field and working principle.

Application Field

The S-13R1B2J-I4T1U3 is a linear voltage regulator that operates over an input voltage range of 800mV to 12V and an output voltage range of 0.3V to 5.5V. It features a no load input current of 0.5mA and a maximum output current of 500mA. This makes it suitable for a variety of devices that require precise voltage regulation. Common applications include motor controllers, telecommunication devices, microprocessor power supplies, pocket-sized electronic devices, tablet PCs, and other products where high efficiency and low noise are essential.

Working Principle

The S-13R1B2J-I4T1U3 is a linear voltage regulator that utilizes the “Series drop” method of voltage regulation. This method works by having the series drop resistor draw a fixed amount of current from the input source, allowing the series transistor to divert the remaining current to the output. The series resistor is adjusted to achieve the desired output voltage. The voltage regulation loop of the S-13R1B2J-I4T1U3 is then adjusted by the bandgap voltage source which also serves to reduce noise. Furthermore, the S-13R1B2J-I4T1U3 also comes with other features such as over current protection, under voltage protection, and thermal shut down.

Conclusion

While the S-13R1B2J-I4T1U3 is designed for linear voltage regulation, there are other PMICs available for different voltage regulation needs. However, the S-13R1B2J-I4T1U3 offers a wide range of features, such as adjustable output voltage, over current protection and thermal shut down. This makes it an ideal choice for products that require precise voltage regulation and an extra layer of safety.

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