S-1122B44MC-L9DTFU

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PMIC – Voltage regulators - Linear products are among the most widely used in the industry. The S-1122B44MC-L9DTFU is an example of a linear voltage regulator integrated circuit (IC). This regulator is specifically designed for use in portable applications and offers a wide range of features and benefits for end-users.

Application Field

The S-1122B44MC-L9DTFU is suitable for a wide variety of portable applications, such as in mobile phones, digital cameras, PDAs and other low-voltage portable devices. The S-1122B44MC-L9DTFU offers a wide range of features that enable efficient voltage regulation and protection for these devices. The features of the S-1122B44MC-L9DTFU make it ideal for use in low-power applications, as the size and power efficiency of the IC make it a practical choice for usage in smaller portable applications.

The S-1122B44MC-L9DTFU also provides adjustable output voltages up to 34V, making it suitable for higher voltage applications such as notebooks and medical equipments. Additionally, the S-1122B44MC-L9DTFU enables the selection of output current up to 1A, making it useful for powering multiple peripherals. Furthermore, the S-1122B44MC-L9DTFU features a low on-resistance (RDS(ON)) which minimizes power losses, making it a reliable and energy-efficient choice for powering sensitive components.

Working Principle

At the heart of the S-1122B44MC-L9DTFU is a linear voltage regulator IC, which provides an efficient and reliable source of steady voltage. The voltage to be regulated is set by an externally connected reference voltage (VREF). The voltage across the load is then compared to VREF and the difference is then fed back to the error amplifier. This provides the necessary adjustment of the output voltage.

The S-1122B44MC-L9DTFU also contains a built-in power switch, which enables efficient control of the output voltage. The power switch is constantly compared to the reference voltage and adjusted in order to maintain the output voltage. This is done by pulling the on/off signal, which is fed back to the error amplifier. This ensures that the output voltage constantly maintains the desired level, regardless of the load conditions or voltage changes.

In addition, the S-1122B44MC-L9DTFU also contains an overload protection circuit. This circuit monitors the output voltage and will shut down the regulator when an over-voltage condition is detected. This helps to protect sensitive components from damage due to voltage fluctuations.

The S-1122B44MC-L9DTFU is designed to be robust and reliable for use in portable applications. The wide range of features and protections included in the S-1122B44MC-L9DTFU make it an ideal choice for low-power, portable devices.

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