ISL6420IAZ

The ISL6420IAZ is an advanced power and load management integrated circuit (IC) intended for notebook PCs and tablet computers. This chip provides an integrated and cost-effective solution to the complex thermal, power, and operational demands in today’s high-end mobile products. The ISL6420IAZ offers a combination of low power consumption, high efficiency, and superior load management in an easy-to-integrate package. With its built-in system management functions, the ISL6420IAZ provides consistent performance over demanding operating temperature and load conditions.

The ISL6420IAZ is part of the ISL6420IMX family of PMICs and Voltage Regulators designed for DC-DC switching controllers. The device is an integrated switch-mode power supply with power management functions including power sequencing, system reset, battery charging support, over-voltage protection, thermal protection, and load management. It features fixed frequency control, current limit, and variable control, as well as variable voltage output and temperature control.

The ISL6420IAZ uses a variable frequency implementation for high efficiency, low output ripple, and fast transient response. It operates with a unique system-level topology that reduces input and output current ripple, improves power savings and load regulation accuracy. It offers user-selectable options including power-on/off sequencing, adjustable current limit, and power ramp time. The device also provides an integrated safety circuit with overvoltage protection, over-temperature sensor, and load line regulation.

The ISL6420IAZ integrates several system functions to simplify board layout and minimize board space requirements. It includes selectable on-board voltage monitoring, voltage sequencing, adjustable PWM frequency, pulse by pulse current limit protection, adjustable shut-down/stop transitions, and protection for under-voltage, over-temperature, open load, short circuit, and reverse polarity faults. Additionally, the ISL6420IAZ features an integrated linear/linear-regulated power supply for applications where a separate power supply is not available.

The ISL6420IAZ provides a complete solution for high-performance power and load management in notebook PCs and tablet computers. With its combination of low power consumption, high efficiency, and superior load management, the ISL6420IAZ delivers superior performance over a wide range of conditions and is the ideal choice for any power sensitive design.