REG103UA-3.3

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The REG103UA-3.3 is a three-terminal, low-dropout regulator designed to deliver up to 300 mA of output current in a tiny SOT23-5 and SOT-23 package. It offers excellent line and load regulation, low device quiescent current, and is extremely fast transient response. It is well suited for small, portable and low power applications.

The REG103UA-3.3 voltage regulator has a wide range of applications, such as cellular phones, PDAs, MP3 players, digital cameras, bluetooth applications, disk drives and battery powered systems. It is ideal for providing regulated low voltage to power both the logic and analog circuitry in portable applications because of its small size and excellent thermal performance.

The REG103UA-3.3 voltage regulator operates by comparing an external reference voltage to an internal voltage reference. The internal voltage reference is set by a resistor connected to the output of the regulator. When the load current is increased or decreased, the internal voltage reference is decreased or increased. The difference between the external reference voltage and the internal reference voltage determines the output voltage of the regulator.

When the output voltage is greater than the internal reference voltage, the regulator drives the pass transistor to disconnect the load from the input voltage and lower the output voltage accordingly. Conversely, when the output voltage is lower than the internal reference voltage, the regulator drives the pass transistor to connect the load to the input voltage and bring the output voltage up to the desired level.

The REG103UA-3.3 voltage regulator has excellent line and load regulation, low device quiescent current, and excellent thermal performance. It has over-voltage and over-current protection to ensure it provides a safe and reliable output voltage when used in a variety of applications. It also features a high-power output which is ideal for powering larger, more power-hungry devices while still achieving excellent total system efficiency.

The REG103UA-3.3 voltage regulator is a prime choice for portable, low-power and high-power applications requiring a reliable output voltage. It is an efficient, cost-effective solution that is designed to provide reliable power and performance for a wide range of applications.

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