Datasheet

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Electrical Performance Specifications

Table 1. TPS59640EVM-751 Electrical Performance Specifications (continued)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

GPU (TPS59640)

Output voltage Vcore SVID: address:01 GPU, payload: 1.23 V 1.23 V

Line regulation 0.1%

Output voltage regulation

Load regulation (droop) load line –3.9 mΩ

Output voltage ripple VBAT = 12 V, 1.23 V/35 A at 385 kHz 30 mVpp

Output load current CPU 3-Phase operation 0 35 A

Output over current Selectable per phase 37 A

Switching frequency Selectable 275 385 660 kHz

Full load efficiency VBAT = 12 V, 1.23 V/35 A at 385 kHz 81.99%

1.05-V VCCIO (TPS51219)

Output voltage 1.05 V

Output voltage regulation Line regulation 0.1%

Load regulation 0.1%

Output voltage ripple VBAT =12 V, 1.05 V/15 A 30 mVpp

Output load current 0 15 A

Output over current 24 A

Switching frequency Selectable 500 kHz

Full load efficiency VBAT = 12 V, 1.05 V/15 A 89.27%

DDR3L/DDR4 MEMORY RAIL (TPS51916)

Output voltage 1.2 V

Line regulation 0.1%

Output voltage regulation

Load regulation 0.1%

Output voltage ripple VBAT = 12 V, 1.2 V/15 A 30 mVpp

Output load current 0 15 A

Output over current 24 A

Switching frequency Selectable 500 kHz

Full-load efficiency VBAT = 12 V, 1.2 V/15 A 90.62%

Operating temperature 25 °C

SLUU796– January 2012 Using the TPS59640EVM-751 IMVP-7, 3-Phase CPU/1-Phase GPU SVID

Power System

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