uP1649Q
Description
Features
The u P1649Q is a VR12.5 pliant CPU power controller supports up to 4 phases. The integrated I2C interface programmability makes the u P1649Q high performance and easy design. Designer can define different power scenario for different current states to optimize the performance and efficiency.
The u P1649Q bines true differential voltage sensing, differential inductor DCR current sensing, input voltage feed-forward and adaptive voltage positioning to provide accurately regulated power for desktop CPUs. It adopts u PI proprietary RCOTTM (Robust Constant On-Time) topology to have fast transient response and smooth mode transition. Similar to digital based PWM controller, the loop gain is also programmable by I2C interface to achieve design flexibility.
The u P1649Q provides VR_READY indicator. It also features plete fault protection functions including over voltage, under voltage, over current, over temperature and under voltage lockout. The u P1649Q is available in...
