uP9511

uP9511 8/7/6/5/4/3/2/1-Phase Synchronous-Rectified Buck Controller for Next Generation GPU Core Power 30CoCOMPnfidential 29 EAP 28 SS 27 VINMON 26 PROG5 25 IMON 24 PROG1 23 PROG2 22 CSPSUM 21 CSNSUM General Description Features The uP9511 is an 8/7/6/5/4/3/2/1-phase PWM controller specifically designed to provide high-precision output voltage system for next generation GPUs. The uP9511 provides programmable output voltage and active voltage positioning functions to adjust the output voltage as a function of the load current, so it is optimally positioned for a load current transient. The uP9511 supports NVIDIA Open Voltage Regulator 8 with PWMVID feature. The PWMVID input is buffered and filtered to generate accurate reference voltage and the output voltage is precisely regulated to the reference input. The uP9511 adopts continuous total DCR current sensing for load line programming. The uP9511 provides hardware setting to adjust the operating phase number in different load curre...