ISL8844AABZ-T

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ISL8844AABZ-T is a multi-channel integrated power supply solution with multi-channel design to enable flexibility and cost savings. The device is designed for use in consumer electronics, automotive, IoT and other similar portable or mobile applications. It has a full load efficiency of up to 97.5% with a low quiescent current of only 3.2μA. ISL8844AABZ-T combines a dc-dc buck regulator, a linear regulator, a buck-boost converter and a battery charger in one package for smooth and efficient power supply management. In addition, the device offers a high level of configurability and protection features, including short-circuit protection, overtemperature protection, circuit lockout and power-on reset, making it an ideal solution for a variety of applications.

ISL8844AABZ-T is a multi-channel power management IC (PMIC) that provides a total of four input channels and six output channels. The four inputs are two switchable DC inputs (switching, linear and battery charger inputs), and two AC/DC inputs. The six outputs include two DC/DC buck converters, two DC/DC buck-boost converters, a linear regulator, and a battery charger. The solution also supports high-side MOSFET synchronization and phase shifting for efficient energy conversion and reduced switching noise. The device is capable of automatic sequencing and margining, and is available in a variety of packages that enables design flexibility. Moreover, it can support up to 4-A output current with tracking accuracy of ± 0.5%, making it suitable for applications that require precision power supply.

ISL8844AABZ-T application field is in a wide range of industrial, automotive, telecommunications and other low-power applications that require portability and high efficiency. The device is designed for offline applications such as PDAs, cell phones, routers, cameras and other handheld or battery-powered devices. As a PMIC, ISL8844AABZ-T provides a solution for efficient, controlled power delivery in these systems. The device can also be used in automotive applications such as sensor networks, where the device provides low-power management and power savings for long run-times.

ISL8844AABZ-T working principle is based on a classical sliding-mode control with MOSFET synchronization in order to achieve high efficiency and low noise operation. The device features programmable current limit protect, short-circuit protection and overtemperature protection, as well as a host of other features. These features are used to ensure that the device operates safely and reliably in the presence of high loads, voltage and temperature. The device can also be programmed to minimize the standby power consumption, which is important for minimizing the impact on system In addition, the device can be programmed to enable the use of high-efficiency AC/DC converters and DC/DC buck-boost converters, which further minimizes power losses. ISL8844AABZ-T also supports precision tracking with an output voltage accuracy of 0.5%.

Overall, ISL8844AABZ-T is a highly integrated PMIC for AC/DC converters, offline switchers and battery charger designs. Designed for low power applications, the device provides an efficient solution for managing power supply in portable and mobile devices. The device features a full load efficiency of 97.5%, current limit protection, low quiescent current and a wide range of protection features to ensure safe and reliable operation. It is available in a variety of packages and supports flexible programming, enabling designers to tailor the device to their application needs. Lastly, the device supports precision tracking and minimizes standby power to reduce the impact on system performance.

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