FAN23SV56AMPX datasheet(10/23 Pages) ONSEMI

Part #	FAN23SV56AMPX

Description	6A Synchronous Buck Regulator

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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10 / 23 page

www.fairchildsemi.com

FAN23SV56A • Rev. 1.0

9

Typical Performance Characteristics

Tested using evaluation board circuit shown in Figure 1 with VIN=19 V, VOUT=1.2 V, fSW=500 kHz, TA=25°C, and

no airflow; unless otherwise specified.

Figure 6. Efficiency vs. Load Current with VIN=19 V

and fSW=500 kHz

Figure 7. Efficiency vs. Load Current with VIN=12 V

and fSW=500 kHz

Figure 8. Efficiency vs. Load Current with VIN=19 V

and VOUT=1.2 V

Figure 9. Efficiency vs. Load Current with VIN=12 V

and VOUT=1.2 V

Figure 10.Case Temperature Rise vs. Load Current

on 4 Layer PCB, 1 oz Copper, 7 cm x 7 cm

Figure 11.Case Temperature Rise vs. Load Current

on 4 Layer PCB, 1 oz Copper, 7 cm x 7 cm

10

20

30

40

50

60

70

80

90

100

0.01

0.1

1

10

Load Current (A)

19VIN_1.05VOUT_500KHZ_1.2UH

19VIN_1.2VOUT_500KHZ_1.2UH

19VIN_3.3VOUT_500KHZ_2.4UH

19VIN_5VOUT_500KHZ_3.3UH

10

20

30

40

50

60

70

80

90

100

0.01

0.1

1

10

Load Current (A)

12VIN_1.05VOUT_500KHZ_1.2UH

12VIN_1.2VOUT_500KHZ_1.2UH

12VIN_3.3VOUT_500KHZ_2.4UH

12VIN_5VOUT_500KHZ_3.3UH

10

20

30

40

50

60

70

80

90

100

0.01

0.1

1

10

Load Current (A)

19VIN_1.2VOUT_300KHZ_1.8UH

19VIN_1.2VOUT_500KHZ_1.2UH

19VIN_1.2VOUT_1MHZ_0.56UH

19VIN_1.2VOUT_1.5MHZ_0.4UH

10

20

30

40

50

60

70

80

90

100

0.01

0.1

1

10

Load Current (A)

12VIN_1.2VOUT_300KHZ_1.8UH

12VIN_1.2VOUT_500KHZ_1.2UH

12VIN_1.2VOUT_1MHZ_0.56UH

12VIN_1.2VOUT_1.5MHZ_0.4UH

0

5

10

15

20

25

30

35

40

0

2

4

6

8

10

Load Current (A)

12VIN_1.2VOUT_1.5MHz_0.4uH

12VIN_1.2VOUT_1MHz_0.56uH

12VIN_1.2VOUT_500kHz_1.2uH

0

10

20

30

40

50

60

0

2

4

6

8

10

Load Current (A)

19VIN_1.2VOUT_1.5MHz_0.4uH

19VIN_1.2VOUT_1MHz_0.56uH

19VIN_1.2VOUT_500kHz_1.2uH

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