NCP1410 datasheet(7/16 Pages) ONSEMI

Part #	NCP1410

Description	250 mA Sync-Rect PFM Step-Up DC-DC Converter with Low-Battery Detector

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NCP1410

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TYPICAL OPERATING CHARACTERISTICS

100 mA

200 mA

OUTPUT LOADING CURRENT, ILOAD/mA

1.0

10

1

1000

–2

100

–3

Figure 15. Output Voltage Change vs.

Load Current

OUTPUT LOADING CURRENT, ILOAD/mA

–1

0

3

L = 22

mH

VOUT = 3.3 V

CIN = 10 µF

COUT = 33 µF

1.0

1.5

3.0

40

2.0

0

Figure 16. Output Voltage Change vs.

Load Current

BATTERY INPUT VOLTAGE, VBATT/V

80

120

Figure 17. Output Ripple Voltage vs.

Battery Input Voltage

0

2.0

8.0

6.0

2.0

4.0

0

Figure 18. Output Ripple Voltage vs.

Battery Input Voltage

INPUT VOLTAGE AT OUT PIN, VOUT/V

4.0

6.0

14

Figure 19. No Load Operating Current vs.

Input Voltage at OUT Pin

Figure 20. Startup Transient Response

VIN = 1.8 V

3.0 V

VOUT = 3.3 V

CIN = 10 µF

COUT = 33 µF

L = 22

mH

2

2.2 V

1.0

10

1

1000

–2

100

–3

–1

0

3

L = 15

mH

VOUT = 3.3 V

CIN = 10 µF

COUT = 33 µF

VIN = 1.8 V

3.0 V

2

2.2 V

2.5

20

60

100

140

160

180

200

100 mA

1.0

1.5

3.0

40

2.0

0

BATTERY INPUT VOLTAGE, VBATT/V

80

120

VOUT = 3.3 V

CIN = 10 µF

COUT = 33 µF

L = 15

mH

2.5

20

60

100

140

160

180

200

200 mA

10

12

1.0

3.0

5.0

(VIN = 2.2 V, VOUT = 3.3 V, ILOAD = 100 mA; L = 22 µH,

COUT = 33 µF)

Upper Trace: Output Voltage Waveform, 2.0 V/Division

Lower Trace: Shutdown Pin Waveform, 1.0 V/Division

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