ISL8118IRZ-T

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ISL8118IRZ-T is a DC-DC switching controller integrated circuit designed by Renesas. It is classified as a PMIC (Power Management Integrated Circuit) Voltage Regulator, DC DC Switching Controller.

The device is designed to be used in wide range of power converters such as non-isolated buck, boost and flyback converters. It is configured for synchronous rectification for better efficiency and can support 9V to 42V input voltage range, thus making it a versatile device with a wide range of applications.

It comes in a miniature 3mm x 3mm QFN-16 package, making it small and easy to integrate into applications. The device also has integrated soft-start/hiccup reset, protected output over-voltage, under-voltage, high temperature and reverse current. It also has an adjustable frequency (up to 700 kHz) for better performance.

The ISL8118IRZ-T consists of an oscillator, a high-frequency switching power FET, an error amplifier, a voltage reference and a current sense amplifier. It is designed to operate with a single switch instead of two switching devices, and uses pulse-width modulation (PWM) control to regulate output voltage and current.

The circuit has an integrated error amplifier which monitors the output voltage, controlling the PWM duty cycle to adjust the output voltage by varying the frequency and/or switching the current. This provides accurate control of output voltage and current. The oscillator generates a triangular waveform, whose rising and falling edges define the beginning and end of each switching period.

The ISL8118IRZ-T also has an adjustable frequency, which can be set up to 700kHz, allowing it to be used in a variety of power converters. This is useful as it allows the device to be adjusted to the optimum operating frequency of the particular power converter design.

The device has in-built thermal protection, over-current and short circuit protection, and over-voltage and under-voltage protection. These ensure that the device is operational even under the most adverse conditions.

The ISL8118IRZ-T is designed to be used in a wide range of applications, including battery chargers, AC/DC power adapters, and DC/DC switches, among others. It provides an efficient and cost-effective solution for many applications.

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