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CHARACTERISTIC DATA (PTB48502A)

0

20

60

100

90

80

70

60

50

100

40

80

(See Note B)

0

20

40

60

80

100

12

10

8

4

2

0

6

(See Note B)

0

2

4

6

8

10

−6

−4

−2

0

2

4

6

12

20

30

40

50

60

70

80

90

Total Output Power − W

0

10

20 30 40

50

60 70

80

90 100

400LFM

200LFM

100LFM

Nat Conv

(See Note B, C)

PTB48500

PTB48501

PTB48502

SLTS218C – SEPTEMBER 2003 – REVISED AUGUST 2006

[Io

EFFICIENCY

POWER DISSIPATION

vs

vs

LOAD CURRENT

LOAD CURRENT

Figure 13.

Figure 14.

CROSS REGULATION

∆Vo

SAFE OPERATING AREA

Figure 15.

Figure 16.

(1)

A. Characteristic data has been developed from actual products tested at 25

°C. This data is considered typical data for the converter.

(2)

B. Load current is increased proportionally from both outputs, up to the indicated maximum value of each respective output.

(3)

C. SOA curves represent the conditions at which internal components are at or below the manufacturer's maximum operating

temperatures. Derating limits apply to modules soldered directly to a 4 in.

× 4 in. double-sided PCB with 1 oz. copper.

10

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PTB48500A and PTB48502A are Not Recommended for New Designs