Transformer Selection (T)

Figure 13 lists the standard transformers available for flyback regulator applications. Included in the table are the turns ratio(s) for

each transformer, as well as the output voltages, input voltage ranges, and the maximum load currents for each circuit.

DS012316-18

FIGURE 12. Triple-Output Flyback Regulator

Applications

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Transformers

T1

T1

T1

T2

T3

T4

V

IN

4V–6V

4V–6V

8V–16V

4V–6V

18V–36V

18V–36V

V

OUT1

3.3V

5V

12V

12V

12V

5V

I

1.8A

1.4A

1.2A

0.3A

1A

2.5A

N

1

1

1

1

2.5

0.8

0.35

V

OUT2

−12V

−12V

12V

I

0.3A

1A

0.5A

N

2

2.5

0.8

0.8

V

OUT3

−12V

I

0.5A

N

3

0.8

FIGURE 13. Transformer Selection Table

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