RC1117S33T Integrated Circuits (ICs)

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Introduction

The RC1117S33T is a low-dropout (LDO) linear voltage regulator manufactured by Richtek Technology Corporation. It features a standard 12V operating voltage range, low quiescent current, high output current capability and a high efficiency Linear regulation topology. The RC1117S33T is ideal for use in a wide range of applications, from automotive, to consumer electronics, and even industrial equipment.

Application Field

The RC1117S33T is a wide input voltage range, low dropout (LDO) linear regulator, which is specifically intended for automotive, consumer electronics and industrial applications where high reliability and cost effectiveness are primary objectives. It can be used to regulate both single (12V typical) and dual (24V typical) supply systems, as well as battery operated systems.

The RC1117S33T operates well in Telecommunication systems, as it offers very low dropout voltage and high reliability while providing a very low noise operation. It is also suitable for data acquisition systems, industrial automation, process control and telecommunications because of its low noise and high efficiency.

Working Principle

The RC1117S33T is a Linear voltage regulator that uses linear regulation to convert the input voltage to a lower output voltage. The regulator uses a P-channel MOSFET as its switch. When the input voltage is higher than the output voltage, the transistor is on and the output voltage is less than the input voltage. When the input voltage is below the output voltage, the transistor turns off, and the output voltage remains at the output voltage.

The regulator can regulate both single and dual supply systems. In a single supply system, the regulator will maintain the output voltage at a certain level, regardless of the input voltage. In the dual supply system, the regulator will regulate the voltage between the two supplies.

The regulator maintains a high level of efficiency, because it is an inherently low loss topology, with low conductive losses and no switching losses as the switches are always on. It also exhibits low quiescent current and high output current capability.

Conclusion

The RC1117S33T is a low-dropout linear voltage regulator from Richtek Technology Corporation. It is designed for a wide range of applications, such as automotive, consumer electronics and industrial equipment, due to its high efficiency, low quiescent current and high output current capability. It features a wide input voltage range, linear regulation to convert the input voltage to a lower output voltage and is capable of regulating both single and dual supply systems.

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