ISL6353CRTZ-TK

The ISL6353CRTZ-TK is a highly efficient three-phase PWM buck regulator controller designed for VR12 DDR memory applications. Its multi-phase implementation results in better system performance, superior thermal management, lower component cost, and a smaller PCB area. With two integrated power MOSFET drivers, the ISL6353 offers a cost-effective and space-saving power management solution. The PWM modulator, based on Renesas' Robust Ripple Regulator™ (R3) technology, commands variable PWM switching frequency during load transients, achieving faster transient response compared to traditional multi-phase buck regulators. In light load conditions, the R3 modulator goes into pulse frequency modulation operation to achieve higher light load efficiency. The ISL6353 is fully compliant with VR12 specifications and features a serial VID (SVID) bus for communication with the CPU. Additionally, the output can be programmed for 1-, 2-, or 3-phase interleaved operation, and the output voltage and power state can be controlled independent of the serial VID bus. With support for DCR current sensing, single NTC thermistor for DCR temperature compensation, remote voltage sense, adjustable switching frequency, current monitor, OC/OV protection, power-good, temperature monitor, and thermal alert, the ISL6353 is a versatile and reliable solution for VR12 DDR memory applications

Key Features

• Low Power Consumption
• High Efficiency
• Compact Design