Datasheet

V = 9 V
I
V = 12 V
I
V = 20 V
I
0 5 10 15 20 25 30 35
I - Output Current - A
O
70
75
80
85
90
95
Efficiency - %
1.05
1.1
1.15
1.2
1.25
1.3
V - Output Voltage - V
O
0 5 10 15 20 25 30 35
I - Output Current - A
O
12 Vin Vout - V
SPEC - min
SPEC - nom
SPEC - max
20 Vin Vout - V
9 Vin Vout - V
CH1: VDIO
CH2: GSW
CH3: G_Vcore
CH4: GPGOOD
TPS59640EVM
CPU VDIO Turn on
Test Condition: 12Vin, 1.23V/20A
CPU operation
CH1: VR_ON
CH2: GSW
CH3: G_Vcore
CH4: GPGOOD
TPS59640EVM
GPU VR_ON Turn off
Test Condition: 12Vin, 1.23V/20A
GPU operation
Performance Data and Typical Characteristic Curves www.ti.com
8.4 GPU Operation
Figure 60. GPU Efficiency Figure 61. GPU Load Regulation
Figure 62. GPU Enable Turnon Figure 63. GPU Enable Turnoff
44
Using the TPS59640EVM-751 IMVP-7, 3-Phase CPU/1-Phase GPU SVID SLUU796–January 2012
Power System
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