S-818A40AMC-BGUT2G

Power Management IC (PMIC) is a semiconductor device used to manage the power supply and improve system performance. Its key features include voltage and current conversion, thermal protection, overcurrent protection, reverse polarity protection, and other built-in functions. The S-818A40AMC-BGUT2G linear voltage regulator is a member of the PMIC family that provides optimal power management for applications that require tight design requirements. This article will introduce the application field and working principle of the S-818A40AMC-BGUT2G.

Applications

The S-818A40AMC-BGUT2G is a low-voltage, low-power linear voltage regulator designed for low voltage and low power applications. It can be used in various applications including portable and wearable device battery charging, automotive components and systems, industrial control systems, communications systems, and battery backup systems. It is also suitable for use in set-top boxes, TVs, displays, and other consumer electronics. The device is designed to provide a smooth and constant 2.3V to 5.5V power supply for various electronic products. The device is rated for a maximum output current of 8A, with a total dropout voltage of 0.6V.

Features

The S-818A40AMC-BGUT2G features a low current consumption of between 12.5μA and 20μA depending on the output voltage, making it ideal for portable and battery operated device applications. The device also features an adjustable output voltage range of 2.3V to 5.5V, allowing for fine voltage adjustment. The device also features high power conversion efficiency of up to 90%. Additionally, the device features a low output ripple of 0.2V, making it suitable for noise sensitive applications such as Voice Over IP or low power audio applications.

Working Principle

The S-818A40AMC-BGUT2G linear voltage regulator operates by regulating the output voltage based on the input voltage. When the input voltage rises, the switch inside the regulator closes, generating a low voltage drop across the output line. This causes the output voltage to drop, keeping the output voltage constant. When the input voltage lowers, the switch opens, allowing the output voltage to rise to maintain a constant output voltage. The output current is limited by the output current limit resistor, which prevents the device from supplying more current than the output current rating.

Conclusion

The S-818A40AMC-BGUT2G linear voltage regulator is an efficient and reliable power management solution for systems requiring tightly regulated power supplies. It features a wide input voltage range of 2.3V to 5.5V, an adjustable output voltage range, high power conversion efficiency, low power consumption, and low output ripple. The device is ideal for a wide range of applications including battery operated devices, automotive components, industrial control systems, communications systems, and more.