MAX17000A Maxim Integrated Products, MAX17000A Datasheet - Page 10

• Manufacturer Part Number: MAX17000A
• Description: Complete DDR2 and DDR3 Memory Power-Management Solution
• Manufacturer: Maxim Integrated Products

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Complete DDR2 and DDR3 Memory
Power-Management Solution
(MAX17000A Circuit of Figure 1, V
10
PGOOD2
PGOOD1
VDDQ
VTTR
VTT
DL
I
50
40
30
20
10
LX
0
______________________________________________________________________________________
DL: 5V/div
VDDQ: 1V/div
VTT: 1V/div
VTTR: 1V/div
2.0
SAMPLE SIZE = 150
OUTPUT OVERLOAD WAVEFORM
VTT SOURCE CURRENT LIMIT
2.5
CURRENT LIMIT (A)
400μs/div
3.0
T
T
A
A
PGOOD2: 2V/div
PGOOD1: 2V/div
I
LX
3.5
= +85°C
= +25°C
: 10A/div
MAX17000A toc15
IN
= 12V, V
4.0
DD
0.79
0.78
0.77
0.76
0.75
0.74
0.73
0.72
= V
Typical Operating Characteristics (continued)
50
40
30
20
10
0
-2.0
CC
-4.0
V
SAMPLE SIZE = 150
vs. SOURCE/SINK LOAD CURRENT
TTI
-1.5 -1.0
= 5V, SKIP = GND, T
= 1.5V
VTT SINK CURRENT LIMIT
-3.5
LOAD CURRENT (A)
CURRENT LIMIT (A)
VTT VOLTAGE
-0.5
-3.0
0
0.5
T
T
-2.5
A
A
1.0
= +85°C
= +25°C
A
= +25°C, unless otherwise noted.)
1.5
-2.0
2.0
PGOOD1
PGOOD2
VDDQ
VTTR
VTT
DL
I
50
40
30
20
10
LX
0
-15.0
DL: 5V/div
I
VDDQ: 2V/div
VTT: 1V/div
LX
VTT OFFSET VOLTAGE DISTRIBUTION
SAMPLE SIZE = 150
VTT OVERLOAD FAULT WAVEFORMS
: 2A/div
-12.5
OFFSET VOLTAGE (mV)
AT 300mA LOAD
(5ms TIMER)
1ms/div
-10.0
T
T
VTTR: 1V/div
PGOOD1: 2V/div
PGOOD2: 2V/div
A
A
-7.5
= +85°C
= +25°C
MAX17000A toc20
-5.0