NCP1422 datasheet(5/14 Pages) ONSEMI

No de pièce	NCP1422

Description	800 mA Sync?뭃ect PFM Step?뭊p DC?묭C Converter with True?묬utoff and Ring?묷iller

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Fabricant	ONSEMI [ON Semiconductor]

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NCP1422

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TYPICAL OPERATING CHARACTERISTICS

1.180

1.185

1.190

1.195

1.200

1.205

0.0

0.1

0.2

0.3

0.4

0.5

0.6

−40

−20

0

20

40

60

80

100

AMBIENT TEMPERATURE, TA/°C

P−FET (M2)

N−FET (M1)

VOUT = 3.3 V

−40

−20

0

20

40

60

80

100

AMBIENT TEMPERATURE, TA/°C

0.5

0.6

0.7

0.8

0.9

1.0

−40

−20

0

20

40

60

80

100

0.6

0.9

1.1

1.4

1.6

0

50

100

150

200

250

TA = 25°C

OUTPUT LOADING CURRENT, ILOAD/mA

Figure 2. Reference Voltage vs. Output Current

Figure 3. Reference Voltage vs. Voltage at OUT Pin

Figure 4. Reference Voltage vs. Temperature

Figure 5. Switch ON Resistance vs. Temperature

Figure 6. LX Switch Max. ON Time vs. Temperature

Figure 7. Minimum Startup Battery Voltage vs.

Loading Current

1.180

1.190

1.200

1.210

1.220

1

10

100

1000

VOUT = 3.3 V

L = 10

mH

CIN = 22 mF

COUT = 22 mF

CREF = 1.0 mF

TA = 25_C

AMBIENT TEMPERATURE, TA/°C

OUTPUT CURRENT, ILOAD/mA

VIN = 1.5 V

VIN = 2.0 V

VIN = 2.5 V

1.180

1.190

1.210

1.220

CREF = 200 nF

IREF = 0 mA

TA = 25°C

VOLTAGE AT OUT PIN, VOUT/V

VOUT = 3.3 V

CREF = 200 nF

IREF = 0 mA

1.5

2

2.5

3

3.5

4

4.5

5

1.200

Numéro de pièce similaire - NCP1422

Fabricant	No de pièce	Fiches technique	Description
ON Semiconductor	NCP1422	1Mb / 20P	High Efficiency DC-DC Converters Rev.2, Jun-2006
ON Semiconductor	NCP1422	3Mb / 4P	AC-DC Offline Switching Controllers/Regulators Rev.0, Jun-2005

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