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參數(shù)資料
| 型號： | SC473MLTRT |
| 廠商： | Semtech Corporation |
| 英文描述： | Single-Phase Single Chip Graphics Core Power Supply |
| 中文描述： | 單相單芯片圖形核心供電 |
| 文件頁數(shù)： | 4/18頁 |
| 文件大小： | 486K |
| 代理商： | SC473MLTRT |
4
2006 Semtech Corp.
www.semtech.com
SC473
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Parameter
Condition
Min
Typ
Max
Units
Logic Inputs (EN, VID [4:0])
Enable Threshold
0.8
2.0
V
VID [4:0] Threshold
0.45
0.55
V
Input Impedance
40
k
Ω
Reference (DAC, SS, VREF), (0 < T
J
<85°C)
DAC Error +
Internal Offset
1.15 - 0.85V
-0.85
+0.85
%
0.825V - 0.5V
-7
7
mV
0.475 - 0.375V
-14
14
mV
DAC Sink/Source Ability
0.3V < DAC < 1.5V
|50|
μ
A
SS Slew Current
Start-up and Operating
102
120
138
μ
A
Discharge (SS = 0.5V)
15
mA
SS Discharge Threshold
50
400
mV
VREF Accuracy
1.97
2.00
2.03
V
VREF Sink/Source Ability
|1.5|
mA
Remote Sense (FB+, FB-)
Bandwidth
(1)
2
MHz
Error Ampli
fi
er (ERROUT)
Gain
19
Bandwidth
(1)
2
MHz
Current Sensing (CS+, CS-)
CS+, CS- Input Bias Current
CS+ = CS- = 1.5V
1
μ
A
Maximum Input Signal
50
mV
Zero-Crosssing Detector
Threshold Powersave
-6
6
mV
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