S-1333C34-A4T2U3

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PMIC - Voltage Regulators - Linear

Voltage regulators are very useful components in power management applications, allowing precise control of the output voltage in the system. The S-1333C34-A4T2U3 is an integrated low-dropout (LDO) linear regulator with adjustable output voltage for high-performance power management. With its wide operating voltage range, low dropout voltage, and high output current, it can be used in both conventional and low-power applications.

The S-1333C34-A4T2U3 is designed for a wide range of power supply applications, from as low as 0.6V to as high as 6V and can deliver up to 1.5A of output current. It also has a low quiescent current of 6µA, making it suitable for power-sensitive applications. The S-1333C34-A4T2U3 is available in a small SOT-23-5 package and is ideal for a variety of low-voltage and low-power systems, such as handheld and portable devices, laptop and palmtop computers, and 3V and 5V power supplies.

Working Principle

The S-1333C34-A4T2U3 works on the basic principle of voltage regulation: the semiconductor component inside the chip takes power from the input source and uses it to control the flow of current, maintaining a constant voltage at the output. When the output voltage deviates from the set point, the S-1333C34-A4T2U3 adjusts the current flow, in either direction (i.e. positive or negative), to maintain the output voltage at the specified level.

The S-1333C34-A4T2U3 also contains a voltage-drop-compensation circuit, consisting of an external compensation pin and an internal compensation resistor. This combination allows the device to sense the voltage drop across the regulator’s external pass element and dynamically adjust the internal current limit. This ensures that the output voltage remains constant, even with a wide range of load currents and input voltages.

The S-1333C34-A4T2U3 also has a low input bias current and a low output offset voltage, making it suitable for small-signal regulation. In addition, its over-temperature protection and power-on-off control circuits ensure the security of the device when operating in harsh environments.

Applications

The S-1333C34-A4T2U3 is an ideal solution for a wide range of portable, consumer and industrial applications which require low-dropout and high-efficiency power conversion. Its wide operating voltage range and low dropout voltage make it suitable for a variety of applications such as digital cameras, cellular phones, MP3 players, tablet computers, PDAs, notebook computers, and LCD TVs. The S-1333C34-A4T2U3 can also be used in industrial and automotive applications, such as smart gloves, automotive instruments, ECUs and LED lighting.

In summary, the S-1333C34-A4T2U3 is an integrated, low-dropout linear voltage regulator which provides excellent performance in a variety of power management applications. It is robust, low-cost, and highly-efficient, making it an ideal choice for both commercial and industrial use.

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