XC6221B332GR-G

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The XC6221B332GR-G is a Regulated Low Drop Out (LDO) three-pin positive voltage regulator from Torex Corporation. The regulator is based on a CMOS process for optimal power efficiency and is available in the P-DSO-3AT surface mount package and an SOT89 package. The XC6221B332GR-G has two output voltage options of 3.3V and 3.7V, is capable of sourcing up to 200mA of output current, and boasts a wide input voltage range of 2.7V to 6.0V.

An important feature of the XC6221B332GR-G is its ability to provide a very low dropout voltage at a very low operating current, as low as 3.2mA when the output of the regulator is loaded. This makes the device ideal for use in battery-powered applications, such as medical and portable electronics, where low power operation is paramount. The low dropout voltage ensures that the regulator can maintain a stable output voltage, even when the input voltage drops significantly.

The XC6221B332GR-G’s on-chip input voltage filter further helps to reduce power dissipation, as well as maintaining a low quiescent current. This ensures that the regulator can operate at high efficiency, minimising unnecessary power losses. The device also features short-circuit and thermal shutdown protection, allowing the regulator to be safely used in a variety of applications.

The XC6221B332GR-G is designed for applications such as mobile phones, tablets, game consoles, and other portable devices where small size and high efficiency are important design criteria. The device is capable of maintaining a high degree of accuracy over the specified input voltage range, with a maximum output voltage variation of ±2%. Its small size makes it well suited for a variety of designs, and its enhanced temperature range allows for operation over a wide temperature range of -40°C to +125°C.

The XC6221B332GR-G is an ideal candidate for various applications requiring a stable, low noise and accurate voltage source. Its exceptionally low dropout voltage, low operating current, and thermal and short-circuit protection make it an ideal solution for a wide range of mobile and portable electronics.

The operating principle of the XC6221B332GR-G is very simple. It consists of an N-Channel MOSFET pass element connected in series with an output transistor. The MOSFET pass element is operated in linear mode, which bridges the resistor network connected to it, allowing the output transistor to sink or source current to the load. The voltage value across the resistors determines the output voltage of the regulator, which is kept constant by the regulator controlling the gate of the pass element through an error amplifier. A reference voltage is provided to the error amplifier, and the regulator will adjust its output voltage depending on the voltage difference between the reference voltage and the output voltage.

Thus the XC6221B332GR-G operates on a very simple principle, providing a stable and accurate output voltage with very low power dissipation, making it an ideal solution for various applications such as automotive and medical electronics.

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