Part Number: uP9512R
Function: Phase Synchronous-Rectified Buck Controller
Package: VQFN5x5-40L package
Manufacturer: uPI Semiconductor( www.upi-semi.com )
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Description
The uP9512R 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 uP9512R 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.
Features
1. Support up to 2MHz Operation Frequency
2. Continuous Inductor DCR Current Sensing
3. Auto-Phase Shedding
4. Adjustable Soft-Start Time
5. Power State Input (PSI)
6. Power Good Indication
7. Channel Current Limit Protection
8. Total Output Over Current Protection
9. Over/Under Voltage Protection
10. Over Temperature Protection
Pinout
Applications
1. Desktop/Server CPU Power Supply (Core VRM)
(1) uP9512R is suitable for CPU core power supply of Intel and AMD platforms.
(2) As a multi-phase synchronous buck controller for multi-core CPUs requiring high current and fast response, current distribution and efficient power supply are possible
(3) Example: High-end CPU power supply such as Intel LGA1700, LGA1200, AMD AM5, TR4
2. GPU power supply (Vcore and Memory Power)
(1) Can be used as Vcore and GDDR memory power supply of NVIDIA and AMD GPUs
(2) Especially adopted in many Power Delivery designs of board partner (AIB) graphics cards
(3) High switching frequency, fast DVID response performance is required
3. FPGA / ASIC / AI Accelerator board power supply
(1) Used as power supply of Xilinx, Intel FPGA, or AI computing SoC (e.g. Google TPU, NVIDIA Grace, etc.)
(2) Suitable for applications where load transient characteristics are important
4. Mainboard power supply for server / data center
(1) Adjust multiple power rails such as CPU, VCCIN, VDDR on server class mainboards
(2) Supports VR13 (Intel), SVID interface → Used as a server controller
(3) High-end motherboard CPU VCore ( ASUS ROG, MSI, GIGABYTE, NVIDIA RTX graphics card )
uP9512R Datasheet
