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.
Features
include adjustable soft-start, channel current limit, under voltage protection, over voltage protection and power good output. The uP9511R is available in VQFN5x540L package. Ordering Information
Features
Support NVIDIA’s Open VReg Type 8 PWMVID Technology
Selectable 8/7/6/5/4/3/2/1-Phase Operation by Hardware Setting
Differential Remote Voltage Sensing Continuous Inductor DCR Current Sensing Voltage
Adjustment Switching Frequency Adjustment Operating Phase Number Adjustment Adjus.
uP9511R
8/7/6/5/4/3/2/1-Phase Synchronous-Rectified Buck Controller
for Next Generation GPU Core Power
General Description
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.
uP9511R Datasheet
