S-1313D33-A4T2U3

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S-1313D33-A4T2U3 is an adjustable linear voltage regulator integrated circuit. It is part of a larger class known as PMIC (Power Management Integrated Circuit), specifically with Voltage Regulators in the Linear group. Developed by Sumitomo Electric Industries, it is available in a 14-pin Standard Small Outline package and provides highly efficient power conversion from unregulated sources by regulating the output voltage at a constant level, regardless of load and input voltage.

The S-1313D33-A4T2U3 offers multiple features, such as a 5% output regulation, adjustable output current of up to 200mA for interchangeable designs, low dropout voltage, and ultra-low temperature coefficient for a stable voltage output. Additionally, the circuit benefits from over-current and overtemperature protection, and reverse polarity protection. It also features an integrated OTP (One-Time Programmable) circuit which allows it to be customized to the power requirements of any system, and prevents reverse engineering. It is well-suited for various applications, including PCs, ATX motherboards, remote monitoring systems, and automobile electronics.

The S-1313D33-A4T2U3 consists of a reference voltage source, an error amplifier, and an internal pass element. The reference voltage source provides a stable reference voltage to the error amplifier. The error amplifier compares the output voltage with the reference voltage and adjusts voltage through the pass element. The pass element works by shorting the internal output drive circuit when the voltage is too high, and by connecting it when the voltage is too low. The result is a stable output voltage, regardless of input or load changes.

The S-1313D33-A4T2U3 is controlled by a PWM (Pulse Width Modulation) signal. The PWM signal is adjusted accordingly to generate a voltage through the pass element which can be adapted to the load and the input voltage. This integrated circuit also offers the flexibility of setting different switching frequencies for dynamic load applications and reducing ripple current in motors and servos.

In conclusion, the S-1313D33-A4T2U3 is an ideal choice for applications requiring powerful, reliable, adjustable voltage regulation in a compact and easy-to-use integrated circuit. It has numerous useful features such as over-current and overtemperature protection, PWM control, and one-time programming, which make it the perfect component for a variety of embedded systems.

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