NCP1532 datasheet(10/16 Pages) ONSEMI

Part #	NCP1532

Description	Dual Output Step-Down Converter 2.25 MHz High-Efficiency, Out of Phase Operation, Low Quiescent Current, Source up to 1.6 A

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NCP1532

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10

TEMPERATURE (°C)

Figure 16. Switching Frequency vs.

Temperature

−50

100

25

0

−25

125

5

4

3

2

1

0

−1

−2

−3

−4

−5

75

50

VBAT = 5.5 V

3.6 V

2.7 V

Figure 17. External Synchronization,

Fsync = 2.93 MHz

Figure 18. Soft−Start Typical Behavior

VIN = 3.6 V, VOUT1 = VOUT2 = 1.2 V,

IOUT1 = IOUT2 = 600 mA

Figure 19. Current Peak Inductor Protection

VIN = 3.6 V, VOUT1 = 1.2 V, IOUT1 Short to GND,

EN2 = GND

UVLOfall

UVLOrise

2.5

2.49

2.48

2.47

2.46

2.45

2.44

2.43

2.42

2.41

2.4

2.39

2.38

2.37

2.36

2.35

TEMPERATURE (°C)

Figure 20. UVLO Thresholds VIN = 3.6 V,

IOUT1 = IOUT2 = 2 mA

−50

100

25

0

−25

125

75

50

−50

100

25

0

−25

125

75

50

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

TEMPERATURE (°C)

Figure 21. Enable Thresholds VIN = 3.6 V,

IOUT1 = IOUT2 = 2 mA

VIH

VIL

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