S-13R1C21-I4T1U3

PMIC - Voltage Regulators - Linear

The S-13R1C21-I4T1U3 is a linear voltage regulator specifically designed for use in communication equipments and complex off-line rechargeable power supplies. The device is a low dropout voltage regulator with an integrated soft start control circuit, enabling the S-13R1C21-I4T1U3 to accurately regulate the output voltage when powered by low-voltage power sources. This makes the S-13R1C21-I4T1U3 ideal for high-performance power system applications.

The S-13R1C21-I4T1U3 works by controlling the voltage on its output (Vout) using an on-chip and low dropout error amplifier. This error amplifier is able to compare the difference between the actual output voltage and a desired reference voltage, and then can adjust the output voltage appropriately. This is done by the control of a resistor divider network, which is connected between the input and output, and which allows the S-13R1C21-I4T1U3 to adjust the output voltage based on the voltage drop across this particular resistor. Additionally, this resistor can be set so that it provides the S-13R1C21-I4T1U3 with an "overvoltage protection" capability, allowing it to limit the voltage on its output to a desired level, if an externally applied voltage is significantly higher than the desired output voltage. This provides better reliability and safety, while avoiding unnecessary stress to the internal components of the S-13R1C21-I4T1U3.

In addition to the on-chip hardware control circuits, the S-13R1C21-I4T1U3 also contains a separate soft start control circuit, which is used for reducing output voltage rise time and for providing inrush current limiting protection. The S-13R1C21-I4T1U3 is also capable of providing an adjustable output voltage from 0.8V to 8V, with an output power of up to 4A. Furthermore, the S-13R1C21-I4T1U3 has a built-in set of circuit protection features, such as overvoltage, overcurrent, and thermal shutdown, providing the S-13R1C21-I4T1U3 with better reliability and efficiency.

In summary, the S-13R1C21-I4T1U3 is a low-dropout linear voltage regulator designed for use in communication equipment and off-line rechargeable power supplies. It features an on-chip error amplifier, an adjustable output voltage range from 0.8V to 8V, an output power up to 4A, and a built-in set of circuit protection features. With its integrated soft start control circuit, the S-13R1C21-I4T1U3 can accurately regulate the output voltage when powered by low-voltage power sources, making it an ideal choice for high-performance power system applications.