NCP1570 datasheet(7/14 Pages) ONSEMI

Part #	NCP1570

Description	Low Voltage Synchronous Buck Controller

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP1570

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7

TYPICAL PERFORMANCE CHARACTERISTICS

Figure 9. VFB Bias Current vs. Temperature

Figure 10. Error Amp Output Currents vs. Temperature

Figure 11. COMP Voltages vs. Temperature

Figure 12. COMP Fault Mode Discharge Current vs.

Temperature

Figure 13. GATE Output Rise and Fall Times vs.

Temperature

Figure 14. GATE Non−Overlap Times vs. Temperature

0

0.20

Temperature (°C)

0.25

0.30

0.35

0.40

0.45

0.50

0.55

20

40

60

80

120

100

0

Temperature (°C)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

20

40

60

80

120

100

0

28

Temperature (°C)

29

30

31

33

34

20

40

60

80

100

120

32

0

1.10

Temperature (°C)

1.14

1.18

1.22

1.30

1.34

20

40

60

80

100

120

1.26

0

20

Temperature (°C)

22

24

26

32

34

36

38

20

40

60

80

120

100

30

28

0

30

Temperature (°C)

35

40

45

50

55

20

40

60

80

100

120

Source

Current

Sink

Current

COMP Maximum

Voltage

COMP Fault

Threshold Voltage

COMP Minimum

Voltage

GATEL Fall Time

GATEH Fall Time

GATEH Rise Time

GATEL Rise Time

GATEH to GATEL

Delay Time

GATEL to GATEH

Delay Time

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