S-13R1B40-A4T2U3

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The S-13R1B40-A4T2U3 is a Linear Voltage Regulator within the family of low-dropout (LDO) voltage regulator that provides a wide operating current range and high current accuracy for various applications. The device is eventually suitable for automotive systems as it combines superior design, consistent performance, and a small form factor.

The S-13R1B40-A4T2U3 is mainly designed to step down a input voltage down to a safe and consistent voltage level which is needed to power up complex components. With its integrated feature, the device helps reduce board space requirements while improving system performance and reliability. Additionally, it helps reduce the risks of over-voltage, short-circuit, and over-temperature.

The operating voltage range of S-13R1B40-A4T2U3 is from 2.2V to 14V and it supports a wide range of output voltage options. It can supply up to 400mA output current with a typical line regulation of ±0.3mV and a typical load regulation of 0.02%. It has a low dropout voltage of only 0.25V at maximum load and its typical quiescent current is only 0.4mA.

The device has integrated several protection features to secure power supply from abnormal conditions, such as current limit circuit, thermal shutdown circuit, and over voltage protection, making it an ideal choice for a variety of automotive applications. For example, mobile phones and tablets, multimedia players, and automotive electronics.

The regulating principle behind S-13R1B40-A4T2U3 lies on the innovative negative-feedback controlling technique. In simple terms, this circuitry utilizes a high gain operational amplifier and a set of feedback resistors to precisely control the voltage across the load. As the load causes a voltage drop, the amplifier senses the voltage decrease and increases its output voltage accordingly to restore the voltage and current to their desired values.

The amplifier achieves and maintains steady voltage through the integrated voltage reference and excellent noise rejection, allowing it to guarantee a consistent output with minimal fluctuations. Additionally, the amplifier is further protected from dynamic overload and over-temperature with its integrated overcurrent limitation and thermal shutdown circuit.

In conclusion, the S-13R1B40-A4T2U3 is an excellent choice for those applications requiring a precise output voltage and low current draw. Its stability, low quiescent current, and small form factor make it the most preferred design choice for a wide range of applications. Its precise output voltage, combined with its reverse current protection and thermal shutdown circuit, makes it an ideal solution for automotive systems.

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