參數(shù)資料
型號(hào): NCP5218
廠商: ON SEMICONDUCTOR
英文描述: 2−in−1 Notebook DDR Power Controller
文件頁數(shù): 11/31頁
文件大?。?/td> 463K
代理商: NCP5218
NCP5218
http://onsemi.com
11
Figure 15. V
DDQ
Efficiency (DDR)
vs. V
DDQ
Output Current
Figure 16. V
DDQ
Efficiency (DDR2)
vs. V
DDQ
Output Current
Figure 17. Powerup Waveforms
Figure 18. Powerdown Waveforms
Figure 19. V
DDQ
, V
TTR
Startup Waveforms
Figure 20. V
DDQ
, V
TTR
Shutdown Waveforms
TYPICAL OPERATING CHARACTERISTICS
50
60
70
80
90
100
0.1
1.0
10
100
I
VDDQ
, VDDQ OUTPUT CURRENT (A)
E
V
IN
= 20 V
V
DDQ
= 2.5 V
Freq = 400 kHz max
T
A
= 25
°
C
V
IN
= 12 V
V
IN
= 5 V
with power
saving
without power
saving
50
60
70
80
90
100
0.1
1.0
10
100
I
VDDQ
, VDDQ OUTPUT CURRENT (A)
E
V
IN
= 20 V
V
DDQ
= 1.8 V
Freq = 400 kHz max
T
A
= 25
°
C
V
IN
= 12 V
V
IN
= 5 V
with power
saving
without power
saving
VDDQ
VIN
VTT
VTTR
20V/div
1V/div
1V/div
1V/div
VDDQEN = High; VTTEN = High; VIN = 0 V to 20 V
VIN
VDDQ
VTT
VTTR
20V/div
1V/div
1V/div
1V/div
VDDQEN = High; VTTEN = High; VIN =20 V to 0 V
VDDQEN
VDDQ
VTTR
PGOOD
5V/div
1V/div
1V/div
5V/div
VDDQEN = 0 V to 5 V
VDDQEN
VDDQ
VTTR
PGOOD
5V/div
5V/div
1V/div
1V/div
VDDQEN = 5 V to 0 V
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