L4973 Просмотр технического описания (PDF) - STMicroelectronics

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производитель

L4973

3.5A step down switching regulator

STMicroelectronics 

L4973

Typical characteristics

Figure 23. Dropout voltage between pin Figure 24. Efficiency vs. output voltage

7,8 and 2,3

(see Figure 6)

∆V

D97IN643

(V)

Tj=125˚C

0.6

Tj=25˚C

0.4

Tj=0˚C

0.2

0

0

1

2

3

IO(A)

η

(%)

98

96

94

92

90

88

86

0

100KHz

200KHz

D97IN641

IO = 3A

VCC = 50V

10

20

30

40 VO(V)

Figure 25. Dropout voltage between pin Figure 26. Efficiency vs. output voltage

7,8 and 2,3

(see Figure 4)

∆V

D97IN643

(V)

Tj=125˚C

0.6

Tj=25˚C

0.4

Tj=0˚C

0.2

0

0

1

2

3

IO(A)

η

(%)

98

96

94

92

90

88

86

0

100KHz

200KHz

D97IN641

IO = 3A

VCC = 50V

10

20

30

40 VO(V)

15/27

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