KC80526LY400128 Intel, KC80526LY400128 Datasheet - Page 27

• Manufacturer Part Number: KC80526LY400128
• Manufacturer: Intel

Specifications of KC80526LY400128

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

4.7.2
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) => 4.5 volts and V_DC => 4.75 volts.
Caution- Turning on VR_ON prior to meeting these
conditions will severely damage the Celeron processor
mobile module.
Control of the Voltage Regulator
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.
Icore, A
Table 18. Typical Voltage Regulator Efficiency
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
7
3
V_DC, V
12.0
12.0
12.0
12.0
12.0
12.0
12.0
21.0
21.0
21.0
21.0
21.0
21.0
21.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
I_DC, A
0.370
0.702
1.044
1.404
1.762
2.144
2.528
0.159
0.295
0.438
0.584
0.736
0.890
1.043
0.091
0.170
0.253
0.340
0.429
0.519
0.617
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/M.
Table 19 lists the voltage signal definitions and sequences,
and Figure 5 shows the signal sequencing and the voltage
planes sequencing required for normal operation of the
Celeron processor mobile module MMC-1.
Intel Celeron
2
At 400 MHz, 366 MHz, 333 MHz, and 300 MHz
Efficiency
82.8%
88.8%
89.8%
89.7%
88.1%
86.4%
85.0%
79.7%
87.0%
87.8%
87.3%
86.1%
84.9%
83.8%
79.3%
86.0%
87.3%
85.3%
84.1%
82.9%
80.7%
1
Processor Mobile Module MMC-1
27