ISL6526AIB-T

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The ISL6526AIB-T is a highly integrated pulse-width modulation (PWM) voltage regulator controller from Intersil. It provides nearly all features necessary for DC-DC conversion and power management in a single high-performance IC. This makes it an ideal solution for a wide range of applications such as point-of-load regulators, buck converters, mobile system power sources, automotive electronics, industrial systems, and communication systems. The ISL6526AIB-T is available in a 6x6x0.75mm, 48-pin TQFN package.

The ISL6526AIB-T is a fully integrated high-voltage PWM voltage regulator controller. It features an integrated onboard high-efficiency PWM regulator controller with a power range of up to 20 V and up to a 1 MHz switching frequency. The ISL6526AIB-T also incorporates a wide range of features including built-in soft-start, over-current protection, under-voltage lockout, thermal protection, and analog over-voltage protection. The device also provides programmable output voltage, phase-count, and frequency configurations as well as external synchronization capability.

The primary application fields of the ISL6526AIB-T are point-of-load regulators, buck converters, mobile system power sources, automotive electronics, industrial systems, and communication systems. It finds uses in effectively regulating the voltage and current in those applications.

The basic working principle behind the ISL6526AIB-T is a switching regulator topology. It is essentially a two-stage switching regulator comprised of a high-side Power MOSFET (Field Effect Transistor) and a low-side control switch. During the PWM switching cycle, the high-side MOSFET will be turned on and off based on the current sensed across an external sense resistor. The movement of current between the two MOSFETs will cause the output voltage to fluctuate until the desired voltage is reached. The low-side control switch will then enable the necessary feedback control to maintain the desired output voltage across a wide range of line and load conditions.

The ISL6526AIB-T also incorporates a wide range of features that can be programmed in order to customize the system to fit a particular application. It has programmable output voltage, phase-count, frequency configurations, external synchronization capability, built-in soft-start, over-current protection, under-voltage lockout, thermal protection, and analog over-voltage protection. In addition, the ISL6526AIB-T also has an integrated charge pump and bootstrap circuit for improved efficiency and operational performance.

In conclusion, the ISL6526AIB-T is a highly integrated and efficient PWM voltage regulator controller from Intersil, suitable for point-of-load regulators, buck converters, mobile system power sources, automotive electronics, industrial systems, and communication systems. It incorporates a wide range of features such as programmable output voltage, phase-count, and frequency configurations as well as external synchronization capability, built-in soft-start, over-current protection, under-voltage lockout, thermal protection, and analog over-voltage protection. The ISL6526AIB-T can be a great solution for applications requiring a high-voltage PWM voltage regulator.

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