BSC042N03MSG datasheet(8/40 Pages) AD

Part #	BSC042N03MSG

Description	Synchronous Buck Controller

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Manufacturer	AD [Analog Devices]

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8 / 40 page

ADP1878/ADP1879

Data Sheet

Rev. A | Page 8 of 40

Figure 10. Efficiency—1.0 MHz, VOUT = 0.8 V

Figure 11. Efficiency—1.0 MHz, VOUT = 1.8 V

Figure 12. Efficiency—1.0 MHz, VOUT = 5 V

Figure 13. Output Voltage Accuracy—300 kHz, VOUT = 0.8 V

Figure 14. Output Voltage Accuracy—300 kHz, VOUT = 1.8 V

Figure 15. Output Voltage Accuracy—300 kHz, VOUT = 7 V

100

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15

10

5

0

10

100

1k

10k

100k

LOAD CURRENT (mA)

TA = 25°C

VOUT = 0.8V

fSW = 1.0MHz

WÜRTH INDUCTOR:

744303012, L = 0.12µH, DCR = 0.33mΩ

INFINEON FETs:

BSC042N03MS G (UPPER/LOWER)

VIN = 13V (PSM)

VIN = 16.5V (PSM)

VIN = 13V

VIN = 16.5V

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25

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10

5

0

10

100

1k

10k

100k

LOAD CURRENT (mA)

TA = 25°C

VOUT = 1.8V

fSW = 1.0MHz

WÜRTH INDUCTOR:

744303022, L = 0.22µH, DCR = 0.33mΩ

INFINEON FETs:

BSC042N03MS G (UPPER/LOWER)

VIN = 13V (PSM)

VIN = 16.5V (PSM)

VIN = 13V

VIN = 16.5V

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95

90

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70

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60

55

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15

10

5

0

10

100

1k

10k

100k

LOAD CURRENT (mA)

TA = 25°C

VOUT = 5V

fSW = 1.0MHz

WÜRTH INDUCTOR:

744355090, L = 0.9µH, DCR = 1.6mΩ

INFINEON FETs:

BSC042N03MS G (UPPER/LOWER)

VIN = 13V (PSM)

VIN = 16.5V (PSM)

VIN = 13V

VIN = 16.5V

0.807

0.806

0.805

0.804

0.803

0.802

0.801

0.800

0.799

0.798

0.797

0.796

0.795

0.794

0.793

0.792

0

2000

4000

6000

8000

10,000

LOAD CURRENT (mA)

+125°C

+25°C

–40°C

VIN = 13V

+125°C

+25°C

–40°C

VIN = 16.5V

1.821

1.816

1.811

1.806

1.801

1.796

1.791

1.786

0

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3000

4500

6000

7500

9000 10,500 12,000 13,500 15,000

LOAD CURRENT (mA)

+125°C

+25°C

–40°C

VIN = 5.5V

+125°C

+25°C

–40°C

VIN = 13V

+125°C

+25°C

–40°C

VIN = 16.5V

7.100

7.095

7.090

7.085

7.080

7.075

7.070

7.065

7.060

7.055

7.050

7.045

7.040

7.035

7.030

7.025

7.020

7.015

7.010

7.005

7.000

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

LOAD CURRENT (mA)

+125°C

+25°C

–40°C

VIN = 13V

VIN = 16.5V

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