MAX17000A(2008_10) 查看數據表（PDF） - Maxim Integrated
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MAX17000A Datasheet PDF : 31 Pages
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Complete DDR2 and DDR3 Memory
Power-Management Solution
Typical Operating Characteristics (continued)
(MAX17000A Circuit of Figure 1, VIN = 12V, VDD = VCC = 5V, SKIP = GND, TA = +25°C, unless otherwise noted.)
DL
VDDQ
VTT
VTTR
PGOOD2
PGOOD1
OUTPUT OVERLOAD WAVEFORM
MAX17000A toc15
ILX
DL: 5V/div
VDDQ: 1V/div
VTT: 1V/div
VTTR: 1V/div
400μs/div
PGOOD2: 2V/div
PGOOD1: 2V/div
ILX: 10A/div
VTT SOURCE CURRENT LIMIT
50
SAMPLE SIZE = 150
TA = +85°C
TA = +25°C
40
30
20
10
0
2.0
2.5
3.0
3.5
4.0
CURRENT LIMIT (A)
VTT VOLTAGE
vs. SOURCE/SINK LOAD CURRENT
0.79
0.78
0.77
0.76
0.75
0.74
0.73
VTTI = 1.5V
0.72
-2.0 -1.5 -1.0 -0.5 0
0.5 1.0 1.5 2.0
LOAD CURRENT (A)
VTT OFFSET VOLTAGE DISTRIBUTION
AT 300mA LOAD
50
SAMPLE SIZE = 150
TA = +85°C
TA = +25°C
40
30
20
10
0
-15.0 -12.5 -10.0
-7.5
-5.0
OFFSET VOLTAGE (mV)
VTT SINK CURRENT LIMIT
50
SAMPLE SIZE = 150
TA = +85°C
TA = +25°C
40
30
20
10
0
-4.0 -3.5
-3.0
-2.5 -2.0
CURRENT LIMIT (A)
VTT OVERLOAD FAULT WAVEFORMS
(5ms TIMER)
MAX17000A toc20
DL
ILX
VDDQ
VTT
VTTR
PGOOD1
PGOOD2
DL: 5V/div
ILX: 2A/div
VDDQ: 2V/div
VTT: 1V/div
1ms/div
VTTR: 1V/div
PGOOD1: 2V/div
PGOOD2: 2V/div
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