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參數(shù)資料
| 型號： | intel Pentium II processor |
| 廠商： | Intel Corp. |
| 英文描述： | Pentium II Processor Mobile Module(帶移動模塊奔II處理器) |
| 中文描述： | 奔騰II處理器的移動模塊（帶移動模塊奔二處理器） |
| 文件頁數(shù)： | 28/46頁 |
| 文件大?。?/td> | 681K |
| 代理商： | INTEL PENTIUM II PROCESSOR |
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28
INTEL
PENTIUM
II PROCESSOR MOBILE MODULE MMC-1
Table 18. Typical Voltage Regulator Efficiency
Icore, A
3
V_DC, V
I_DC, A
2
Efficiency
1
1
5.0
0.370
82.8%
2
5.0
0.702
88.8%
3
5.0
1.044
89.8%
4
5.0
1.404
89.7%
5
5.0
1.762
88.1%
6
5.0
2.144
86.4%
7
5.0
2.528
85.0%
1
12.0
0.159
79.7%
2
12.0
0.295
87.0%
3
12.0
0.438
87.8%
4
12.0
0.584
87.3%
5
12.0
0.736
86.1%
6
12.0
0.890
84.9%
7
12.0
1.043
83.8%
1
21.0
0.091
79.3%
2
21.0
0.170
86.0%
3
21.0
0.253
87.3%
4
21.0
0.340
85.3%
5
21.0
0.429
84.1%
6
21.0
0.519
82.9%
7
21.0
0.617
80.7%
NOTES:
1.
2.
3.
These efficiencies will change with future voltage regulators that accommodate wider ranges of input voltages.
With V_DC applied and the voltage regulator off, typical leakage is 0.3 mA with a maximum of 0.7 mA.
Icore indicates the CPU core current being drawn during test and measurement.
4.7.2.
Control of the Voltage Regulator
The VR_ON pin turns the DC voltage regulator on or off. The
VR_ON pin should be controlled as a function of the SUSB#,
which controls the system’s power planes. VR_ON should
switch high only when the following conditions are met:
V_5(s) => 4.5V and V_DC => 4.75V.
CAUTION
-
Turning on VR_ON prior to meeting these
conditions will severely damage the Pentium
II
processor mobile module.
The VR_PWRGD signal indicates that the voltage regulator
power is operating at a stable voltage level. Use
VR_PWRGD on the system electronics to control power
inputs and to gate PWROK to the PIIX4E.
Table 19 lists the voltage signal definitions and sequences.
Figure 5 shows the signal sequencing and the voltage
planes sequencing required for normal operation.
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