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User's Guide
SLUU796–January 2012
Using the TPS59640EVM-751 IMVP-7, 3-Phase
CPU/1-Phase GPU SVID Power System
The TPS59640EVM-751 evaluation module (EVM) is a complete solution for the Intel™ IMVP-7 Serial VID
(SVID) Power System from a 9-V to 20-V input bus. This EVM uses the TPS59640 for IMVP-7 3-Phase
CPU and 1-Phase GPU Vcore, TPS51219 for 1.05VCCIO, TPS51916 for DDR3L/DDR4 memory rail
(1.2VDDQ, 0.6VTT, and 0.6VTTREF). The TPS59640EVM-751 also uses the 5-mm x 6-mm TI power
block MOSFET (CSD87350Q5D) for high-power density and superior thermal performance.
Contents
1 Description ................................................................................................................... 4
1.1 Typical Applications ................................................................................................ 4
1.2 Features ............................................................................................................. 4
2 TPS59640EVM-751 Power System Block Diagram .................................................................... 5
3 Electrical Performance Specifications .................................................................................... 6
4 Schematic .................................................................................................................... 8
5 Test Setup .................................................................................................................. 21
5.1 Test Equipment ................................................................................................... 21
5.2 Recommended Wire Gage ...................................................................................... 22
5.3 Recommended Test Setup ...................................................................................... 22
5.4 USB Cable Connections ......................................................................................... 23
5.5 Input Connections ................................................................................................ 23
5.6 Output Connections .............................................................................................. 24
6 Configuration ............................................................................................................... 24
6.1 CPU and GPU Configuration ................................................................................... 24
6.2 1.2VDDQ, 0.6V VTT and 0.6V VTTREF Configuration ...................................................... 27
6.3 1.05V VCCIO Configuration ..................................................................................... 27
7 Test Procedure ............................................................................................................ 28
7.1 Line/Load Regulation and Efficiency Measurement Procedure ............................................ 28
7.2 Equipment Shutdown ............................................................................................ 31
8 Performance Data and Typical Characteristic Curves ................................................................ 32
8.1 CPU3-Phase Operation .......................................................................................... 32
8.2 CPU 2-Phase Operation ......................................................................................... 36
8.3 CPU 1-Phase Operation ......................................................................................... 40
8.4 GPU Operation ................................................................................................... 44
8.5 1.05V VCCIO ...................................................................................................... 48
8.6 1.2 VDDQ .......................................................................................................... 51
9 EVM Assembly Drawings and PCB layout ............................................................................. 53
10 Bill of Materials ............................................................................................................. 59
List of Figures
1 TPS59640EVM-751 Power System Block Diagram.................................................................... 5
2 TPS59640EVM-751 EVM Illustration..................................................................................... 6
3 TPS59640EVM-751 Schematic (1 of 13) ................................................................................ 8
4 TPS59640EVM-751 Schematic (2 of 13) ................................................................................ 9
Intel is a trademark of Intel Corporation.
Windows is a trademark of Microsoft Corporation.
1
SLUU796– January 2012 Using the TPS59640EVM-751 IMVP-7, 3-Phase CPU/1-Phase GPU SVID
Power System
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Copyright © 2012, Texas Instruments Incorporated

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