Renesas Electronics Corporation PMIC - PMIC - Voltage Regulators - DCDC Switching Controllers - HIP6311ACB HIP6311ACB

The HIP6311ACB is a multi-phase buck PWM controller IC designed for precision voltage regulation in advanced microprocessor applications. It operates with 2 to 4 synchronous-rectified buck channels in parallel, utilizing a multi-phase topology to enhance ripple frequency and minimize input and output ripple currents. This design leads to fewer components, lower power dissipation, and a more compact implementation area. The device features a 5-bit digital-to-analog converter (DAC) that allows for output voltage adjustment from 1.100V to 1.850V in 25mV increments, achieving a system accuracy of ±0.5% across temperature variations. It employs a lossless current sensing method for accurate channel current balancing, load sharing, and over-current protection. The HIP6311ACB also includes a power good (PGOOD) monitor that indicates when the core voltage is within specified limits. With a switching frequency range of 50kHz to 1.5MHz, the HIP6311ACB is suitable for various applications, including desktop motherboards, voltage regulator modules, and servers. It is available in a 20-lead SOIC package and operates within a temperature range of 0 to 70°C.