S-1112B36PI-L6VTFG

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Power management integrated circuits (PMICs) are increasingly being used as a means of delivering power to applications in a more efficient and integrated way. A voltage regulator is a type of power supply designed to provide a stable source of power to a device or system. In particular, linear voltage regulators provide excellent linear regulation and power supply rejection, making them ideal for use in high-efficiency mobile or portable device applications. The S-1112B36PI-L6VTFG is an example of a single-output, adjustable, low-dropout linear voltage regulator with excellent thermal, output and line regulation characteristics.

Features

The S-1112B36PI-L6VTFG is a low-dropout linear regulator which can deliver up to 1.2A of output current and provides an adjustable output voltage between 1.3V and 6V. It is an Electronically Programmable Device (EPD) which allows users to program the output voltage on-the-fly, making it ideal for dynamic control applications. Additional features of the S-1112B36PI-L6VTFG include a typical power supply rejection ratio (PSRR) of 60dB, an operating temperature range from -40°C to 125°C, a minimum startup current of 1mA, an internal 100mA current limit, and a thermal shutdown circuit. Its maximum dropout voltage is 1.45V at the maximum output rating.

Applications

The S-1112B36PI-L6VTFG is designed specifically for low noise and low power applications, as well as for systems with stringent output voltage accuracy requirements. It is an ideal choice for use in applications such as battery-powered equipment, portable instruments, high-end test equipment and in industrial or automotive systems. Additionally, its EPD feature makes it suitable for use in portable system applications requiring dynamic control of the output voltage.

Working Principle

The S-1112B36PI-L6VTFG uses a voltage reference, an error amplifier, and a pass transistor to regulate the output voltage. The input voltage passes through a voltage divider, which is set by the voltage reference to produce a reference voltage. The error amplifier compares the reference voltage to the output voltage, and adjusts the pass transistor accordingly to regulate the output voltage. The pass transistor is typically a MOSFET transistor; as the load changes, the pass transistor is adjusted to maintain the output voltage level.

The S-1112B36PI-L6VTFG also features an exposed copper pad which can be used to reduce thermal resistance and improve power efficiency. The copper pad is placed adjacent to the exposed power pad, allowing it to absorb heat generated by the power supply and reduce thermal levels. The copper pad utilizes thermal vias which helps to further improve heat dissipation and provide excellent thermal performance.

Conclusion

The S-1112B36PI-L6VTFG is an adjustable, low-dropout linear voltage regulator, which offers excellent thermal, line and output regulation characteristics. It is an ideal choice for applications where low noise and low power consumption, as well as excellent output voltage accuracy are required. Additionally, its EPD feature makes it suitable for use in dynamic control applications. The S-1112B36PI-L6VTFG is an excellent solution for high-efficiency mobile or portable device applications.

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