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TYPICAL CHARACTERISTICS (VREF =1.25 V)(1)(2)

50

60

70

80

90

10 0

24

6

8

10

0

IL − Load Current − A

VIN = 3.3 V

VIN = 5 V

VIN = 12 V

0

10

20

30

40

50

60

2

46

8

10

0

IL − Load Current − A

VIN = 3.3 V

VIN = 12 V

VIN = 5 V

0

1

2

3

4

24

6

8

10

0

IL − Load Current − A

VIN = 3.3 V

VIN = 12 V

VIN = 5 V

20

30

40

50

60

70

80

90

24

6

8

10

0

IL − Load Current − A

400 LFM

200 LFM

100 LFM

Nat Cinv

20

30

40

50

60

70

80

90

400 LFM

200 LFM

100 LFM

Nat Cinv

VIN = 12 V

24

68

0

IL − Load Current − A

10

PTH03060Y

PTH05060Y, PTH12060Y

SLTS222A–MARCH 2004–REVISED OCTOBER 2005

EFFICIENCY

OUTPUT RIPPLE

POWER DISSIPATION

vs

vs

vs

LOAD CURRENT

LOAD CURRENT

LOAD CURRENT

Figure 1.

Figure 2.

Figure 3.

PTH03060Y/PTH05060Y AT

PTH12060Y ONLY; VIN =12V

NOMINAL VIN

TEMPERATURE DERATING

TEMPERATURE DERATING

vs LOAD CURRENT

vs LOAD CURRENT

Figure 4.

Figure 5.

(1) The electrical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the

converter. Applies to Figure 1, Figure 2, and Figure 3.

(2) The temperature derating 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 x 4 in double-sided PCB with 1 oz. copper. For

surface mount packages (AS and AZ suffix), multiple vias (plated through holes) are required to add thermal paths around the power

pins. Please refer to the mechanical specification for more information. Applies to Figure 4, and Figure 5.

5