MAX17000 查看數據表（PDF） - Maxim Integrated

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MAX17000

Complete DDR2 and DDR3 Memory Power-Management Solution

Maxim Integrated 

MAX17000

Complete DDR2 and DDR3 Memory

Power-Management Solution

Typical Operating Characteristics (continued)

(MAX17000 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

MAX17000 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 VOLTAGE

vs. SOURCE/SINK LOAD CURRENT

0.79

0.78

0.77

0.76

0.75

0.74

0.73

VTTI = 18V

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

+85°C

+25°C

40

30

20

10

0

-15.0 -12.5 -10.0 -7.5 -5.0

OFFSET VOLTAGE (mV)

VTT SOURCE CURRENT LIMIT

50

SAMPLE SIZE = 150

+85°C

+25°C

40

30

20

10

0

2.0

2.5

3.0

3.5

4.0

CURRENT LIMIT (A)

VTT SINK CURRENT LIMIT

50

SAMPLE SIZE = 150

+85°C

+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)

MAX17000 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

10

Maxim Integrated

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