Description:The ISL95813 single-phase controller provides a fully compliant VR12. 6 power supply solution for Intel™ microprocessors. It provides a tightly regulated output voltage that is programmed through a high speed serial bus interface with the CPU. This interface also allows the CPU to acquire real-time information from the voltage regulator (VR), which includes load current and VR temperature. Based on Intersil's Robust Ripple Regulator R3™ Technology, the PWM modulator provides faster transient response and se
The maximum input voltage that the ISL95813HRZ can handle is 25V, but it's recommended to keep it below 24V for reliable operation.
To ensure stable operation during startup, make sure the input voltage is within the recommended range, and the output capacitors are properly sized and placed close to the IC. Also, ensure the input voltage rises slowly (typically 10-20ms) to prevent inrush currents.
For optimal performance, place the ISL95813HRZ close to the input capacitors and output capacitors. Keep the input and output traces short and wide, and avoid routing them near noise-sensitive areas. Also, ensure good thermal conduction and heat dissipation.
To calculate the output voltage ripple, use the following formula: ΔVout = (Iout * ESL) / (Cout * fsw), where ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency.
The maximum output current that the ISL95813HRZ can deliver is 3A per phase, but it's recommended to derate the output current based on the ambient temperature and the thermal design of the system.
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ISL95813HRZ Overview
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