NCP5208 datasheet(4/9 Pages) ONSEMI

Part #	NCP5208

Description	DDR?묲/II Termination Regulator

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NCP5208

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4

TYPICAL OPERATING CHARACTERISTICS

Figure 3. VTT Output Voltage vs. Load Current

(VDDQ = 1.8 V)

Figure 4. VTT Output Voltage vs. Load Current

(VDDQ = 2.5 V)

Figure 5. Source Current Load Regulation vs.

Ambient Temperature

Figure 6. Sink Current Load Regulation vs.

Ambient Temperature

Figure 7. Over Current Protection Limit vs.

Ambient Temperature

Figure 8. Analog Input Current vs. Ambient

Temperature

IVTT, OUTPUT LOAD CURRENT (A)

0.6

0.2

0

−0.2

−0.4

−0.6

−0.8

0.950

0.925

0.900

0.875

0.850

0.4

1.300

1.275

1.250

1.225

1.200

TA, AMBIENT TEMPERATURE (°C)

70

50

40

30

20

10

0

−4

−10

−14

−20

60

PVIN = VDDQ, = AVIN = 2.5 V

VDDQ = 1.8 V, IVTT = 0.6 A

−2

−12

−6

−16

−8

−18

VDDQ = 2.5 V, IVTT = 1.5 A

TA, AMBIENT TEMPERATURE (°C)

70

50

40

30

20

10

0

20

16

10

6

0

60

VDDQ = 1.8 V, IVTT = 0.6 A

18

8

14

4

12

2

VDDQ = 2.5 V, IVTT = 1.5 A

TA, AMBIENT TEMPERATURE (°C)

70

50

40

30

20

10

0

2.5

2.0

1.5

0.5

0

TA, AMBIENT TEMPERATURE (°C)

60

PVIN = AVIN = VDDQ = 2.5 V

Sink Current

Source Current

70

50

40

30

20

10

0

10

8

4

2

0

60

PVIN = AVIN = VDDQ = 2.5 V

IVTT = 0 A

1.0

6

PVIN = VDDQ, = AVIN = 2.5 V

0.8

AVIN = 2.5 V

PVIN = VDDQ = 1.8 V

TA = 25°C

0.6

0.2

−0.2

−0.6

−1.0

−1.4

−1.8

1.0

1.8

AVIN = 2.5 V

PVIN = VDDQ = 2.5 V

TA = 25°C

1.4

IVTT, OUTPUT LOAD CURRENT (A)

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