Renesas Electronics Corporation PMIC - Voltage Regulators - DC DC Switching Controllers ISL6557ACB-T

The ISL6557ACB-T is a multi-phase PWM controller designed for core voltage regulation, capable of driving up to four interleaved synchronous-rectified buck-converter channels. It features active channel current balancing and precision rDS(ON) current sensing, which enhances efficiency and reduces component costs. The device supports a wide output voltage range from 0.800V to 1.550V in 25mV steps through its 5-bit VID input, allowing for dynamic voltage adjustments without additional components. This controller offers programmable power-on bias levels and droop voltage, along with fast transient recovery times and overcurrent protection. It operates in 2-, 3-, or 4-phase configurations, with adjustable channel switching frequencies between 100kHz and 6MHz, providing flexibility for various applications. The ISL6557ACB-T is available in a 24-lead SOIC package and is Pb-free, making it suitable for modern manufacturing processes.