NCP1501 datasheet(10/14 Pages) ONSEMI

Part #	NCP1501

Description	Dual Mode PWM/Linear Buck Converter

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP1501

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10

Vth Low

Figure 12. Input Current versus Voltage for the

CB Pins

4

3

2

1

0

VCB (V)

2.5

2

1.5

1

0.5

0

VCC = 3.6 V

TA = 25°C

Figure 13. Input Current versus Voltage for the

Feedback Pin

2

1.5

1

0.5

0

VFB (V)

8

7

4

3

0

−1

VCC = 3.6 V

TA = 25°C

PWM Mode

1

2

5

6

Figure 14. VCC Input Voltage versus

CB Threshold

6

5

4

3

2

VCC (V)

0.93

0.89

0.88

0.85

0.84

TA = 25°C

LDO Mode

Figure 15. Transition Level of CB Pins

1.4

0.6

0.4

0.2

0

VCB (V)

1.55

1.5

1.4

VCC = 3.6 V

TA = 25°C

LDO Mode

1.3

1.35

1.45

Figure 16. Input Voltage versus

Shutdown Voltage

Figure 17. Output Voltage versus Shutdown

Pin Voltage

0.87

0.86

0.92

0.91

0.90

Vth High

1.2

1.0

0.8

6

5

4

3

2

VCC (V)

0.93

0.89

0.88

0.85

0.84

TA = 25°C

LDO Mode

1.4

0.6

0.4

0.2

0

VCB (V)

1.8

TA = 25°C

LDO Mode

0

0.87

0.86

0.92

0.91

0.90

VSHD High

1.2

1.0

0.8

VSHD Low

VSHD

Decreasing

VSHD

Increasing

1.6

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