SI-8001FDE datasheet(4/9 Pages) SANKEN

4 / 9 page

SANKEN ELECTRIC CO., LTD.

DC-to-DC Step-Down Converter

SI-8001FDE

27469.056

0.5

1.0

1.5

2.0

2.5

3.0

3.5

IO (A)

6.00

5.00

4.00

3.00

2.00

1.00

5.10

5.08

5.06

5.04

5.02

5.00

4.98

4.96

4.94

4.92

4.90

012345678

Efficiency versus

Output Current

VO= 3.3 V

Efficiency versus

Output Current

VO= 5.0 V

Efficiency versus

Output Current

VO= 12.0 V

Low Voltage

Behavior:

Output Voltage

versus

Supply Voltage

8 V

15 V

40 V

30 V

20 V

Load Regulation:

Output Voltage

versus

Output Current

IO (A)

10203040

Quiescent Current

versus

Supply Voltage

IO = 0 A

SS pin open

VIN (V)

VIN

100

0.5

1.0

1.5

2.0

2.5

3.0

3.5

IO (A)

8 V

15 V

40 V

30 V

20 V

VIN

0 A

0.5 A

1 A

40 V

30 V

15 V

10 V

8 V

2 A

3.5 A

0.5

1.0

1.5

2.0

2.5

3.0

3.5

IO (A)

15V

40 V

30 V

20 V

VIN

15 V

8 V

30 V

40 V

Behavior at

Turn-Off:

Quiescent Current

versus

Input Voltage

IO = 0 A

VSS = 0 V

0123

Overcurrent

Protection:

Output Voltage

versus

Output Current

IO (A)

400

300

200

100

0.5

1.0

1.5

2.0

2.5

3.0

3.5

VIN (V)

Performance Characteristics

At TA = 25°C, VO = 5 V Adjusted, R1 = 4.2 kΩ, R2 = 0.8 kΩ

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