ISL6742AAZA

ISL6742AAZA Application Field and Working Principle

The ISL6742AAZA is a synchronous buck-boost switch controller designed to offer high efficiency for portable applications. It has a wide input voltage range and can be used for both buck (step-down) and boost (step-up) operations for covering the full input voltage range. The device is well-suited for applications requiring accurate output voltage regulation at both low and high input voltages, such as in battery-powered products.

The ISL6742AAZA has a special feature called integrated pulsed current limit, which regulates the MOSFET duty cycle while continuously monitoring the operating current. This feature enables lower part count, reduced cost, and less system power loss. The ISL6742AAZA works over a wide input voltage range of 1.8 V to 17 V and an adjustable output voltage range of 0.8 V to 16 V. It has adjustable peak current limit ranging up to 8 A, and an adjustable frequency of up to 2 MHz.

The device is designed to minimize problems associated with parasitic component variances and component aging effects. It includes several features for controlling the output voltage, output current, over-current protection, and compensation. Moreover, the controller has an input voltage and output voltage reference, allowing for a minimum component count and low power consumption.

The primary useful feature of the ISL6742AAZA is its wide-input-voltage capability — it is able to handle input voltages from 1.8 V to 17 V. This makes it an ideal device for a broad range of applications, including those typically powered by batteries. The output voltage is adjustable from 0.8 V to 16 V, and it can be easily adjusted by using external resistors. In addition, the device has a peak current limit of up to 8 A for providing protection against output overload.

The ISL6742AAZA supports two operating modes: buck and boost. In buck mode, it is able to deliver up to 8 A of output current, which can be adjusted through an external resistor. The device comes with internal circuitry that makes adjustments to the duty cycle of the MOSFET to ensure accurate output voltage regulation at all types of input voltages. In this mode, the device is designed to achieve a high efficiency of up to 90%. In boost mode, the device can deliver up to 8 A of output current and offers an adjustable frequency up to 2 MHz to facilitate improved efficiency.

The ISL6742AAZA is a synchronous buck-boost switch controller that offers high efficiency and accuracy, making it ideal for use in battery-powered portable applications. It has a wide input voltage range of 1.8 V to 17 V and an adjustable output voltage range of 0.8 V to 16 V. It also has an adjustable peak current limit of up to 8 A, an adjustable frequency of up to 2 MHz, and an input and output voltage reference for minimizing the part count and power consumption. The device offers two operating modes — buck and boost — and can deliver up to 8 A of output current while providing accurate output voltage regulation at all types of input voltages.