SI9730ABY-E3 Datasheet/PDFPower management integrated circuits (PMICs) are widely used in consumer electronics and embedded system applications due to their ability to manage a wide range of power levels. They are particularly useful in application fields where the processor needs to keep multiple power domains in check, such as in the battery management of a laptop.SI9730ABY-E3 is one of the PMICs available in the market. This type of PMIC is specifically designed for laptop battery management applications.
Overview
The SI9730ABY-E3 PMIC is a monolithic integrated power management device for portable devices. It integrates an energy-efficient dc-to-dc buck converter, dual LDOs, and digital power loop control into a single IC. It features up to 12 minimum output voltage settings, a minimally-regulated output voltage, Superior efficiency for managing processor power domains more efficiently, and low-power operational modes for extending battery life.
Applications
The SI9730ABY-E3 PMIC can be used in a variety of portable applications such as mobile phones, tablets, and portable audio/video player. It can also be used in laptop battery management applications. The integrated buck converter, dual LDOs, and digital power loop control make it an ideal choice for managing processor power domains, enabling the processor to operate at its optimal performance while consuming minimal power.
Working Principle
The SI9730ABY-E3 PMIC employs a step-down switching regulator for converting a wide input range (4.5V - 16.5V) to an adjustable, minimal-regulated output voltage up to 12V. It features a high-accuracy voltage loop control system with smart features such as over-current protection, soft-start, and power output scaling. The integrated LDOs allows for clean, low-noise output, providing efficient management of processor power domains and extending battery life.
Conclusion
The SI9730ABY-E3 PMIC is an ideal choice for laptop battery management applications. Its efficient step-down switching regulator, dual LDOs and digital power loop control provide superior power management, enabling the processor to operate at optimal performance while consuming minimal power. This type of PMIC is widely used in consumer electronics and embedded systems due to its wide application fields and high levels of power management.