ISL8117FVEZ

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The ISL8117FVEZ is a DC-DC switching controller that provides voltage regulation and power conversion capabilities for applications requiring higher voltages. It is designed for DC to DC conversion in applications such as mobile phones, tablets, and embedded devices. The controller can be used as a direct or an isolated converter, with a variety of switching frequencies up to 500MHz, allowing a wide range of operational conditions. The ISL8117FVEZ has internal voltage monitoring, voltage tracking and limit, and thermal protection.

The ISL8117FVEZ supports a wide range of operation including step-down, step-up, and inverting modes. It also supports pulse width modulation (PWM) or pulse frequency modulation (PFM) operation, allowing for control of output voltage or current. The device operates from an input voltage as low as 0.6V and can support a maximum output voltage of 17V.

The ISL8117FVEZ features a voltage feedback loop that provides accurate output voltage regulation. It incorporates an internal current sense amplifier, programmable soft start and synchronized frequency synchronization, which reduce component count, simplify board layout, and reduce power consumption. The device also supports bi-directional synchronous rectification and over-current protection. The operating frequency of the device can be programmed from 100kHz to 500kHz.

The ISL8117FVEZ provides numerous protection features, including output over-voltage protection (OVP) and output over-current protection (OCP). It also includes an optional voltage level detector (VLD) and fault counter (FC). The VLD can detect when the output voltage reaches a user-programmed level, and then latch in the circuit to indicate a fault condition. The fault counter works in conjunction with the VLD and counts the number of times the fault condition occurs.

The ISL8117FVEZ can be used in a variety of applications, such as step-up (buck-boost), step-down (buck), and inverting (boost) mode power supplies. Because of its wide input and output voltage range, it can be used to support a variety of high-voltage and high-current applications, such as automotive and industrial systems, laptop adapters, and LED lighting. The controller is available in a 3mm x 3mm QFN package, allowing for a small design footprint and easy implementation.

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