NCV431A データシートの表示（PDF） - ON Semiconductor

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NCV431A

Programmable Precision References

ON Semiconductor 

TL431A, B Series, NCV431A, B Series, SCV431A

Vin = 10 V to 20 V

TIP115

1.0 k

4.7 k

+

2200 mF

MPSA20

4.7 k

150 mH @ 2.0 A

4.7 k 1N5823

0.01mF

100 k

+

470 mF

Vout = 5.0 V

Iout = 1.0 A

0.1 mF

2.2 k 10

51 k

Figure 30. High Efficiency Step−Down Switching Converter

Test

Line Regulation

Load Regulation

Output Ripple

Output Ripple

Efficiency

Conditions

Vin = 10 V to 20 V, Io = 1.0 A

Vin = 15 V, Io = 0 A to 1.0 A

Vin = 10 V, Io = 1.0 A

Vin = 20 V, Io = 1.0 A

Vin = 15 V, Io = 1.0 A

Results

53 mV (1.1%)

25 mV (0.5%)

50 mVpp P.A.R.D.

100 mVpp P.A.R.D.

82%

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