uP9511S
uPI Semiconductor
8/7/6/5/4/3/2/1-Phase Synchronous-Rectified Buck Controller for Next Generation GPU Core Power
Package Type: VQFN5x5- 40L
The uP9511R 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 uP9511R 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 uP9511R 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 uP9511R adopts continuous total DCR current sensing for load line programming. The uP9511R provides hardware setting to adjust the operating phase number in different load current state. The uP9511R uses MOSFET RDS(ON) current sensing for channel current balance. Other features include adjustable soft-start, channel current limit, under voltage protection, over voltage protection and power good output. The uP9511R is available in VQFN5x5- 40L package.
Data sheet
