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Document Number: 10114

30

Revision: 21-Jan-05

FX5545G105

Vishay

PWM MODE

Vout Vs. lout*

Vin = 3.6V; Vout = 2.5V

Vout Vs. Vin*

2.45

2.5

2.55

2.6

2.3

2.35

2.4

0.5

1

1.5

02

2.5

lout (A)

2.45

2.5

2.55

2.6

2.3

2.35

2.4

8

0

24

6

Iout = 0.5A

Iout = 1A

Iout = 2A

Vin (V)

∆ Temp. Vs. lout*

Above 25°C Ambient Temperature: For Vin = 6V

Efficiency Vs. lout*

Vin = 3.6V; Vin = 2.5V

30

40

25

15

0

10

20

0.5

1

1.5

02

2.5

35

5

lout (A)

70

75

80

85

90

95

100

50

55

60

65

0.5

1

1.5

02

2.5

lout (A)

PSM MODE

Vout Vs. Vin*

lout = 0.1A

Vout Vs. lout*

Vin = 6V

3.2

3.22

3.24

3.26

3.28

3.3

3.32

3.34

3.36

3.38

3.4

3

456

7

Vin (V)

0.25

3.2

3.22

3.24

3.26

3.28

3.3

3.32

3.34

3.36

3.38

3.4

0

0.05

0.1

0.15

0.2

Iout (A)

Efficiency Vs. lout*

0

10

20

30

40

50

60

70

80

90

100

0

0.05

0.1

0.15

0.2

0.25

Iout (A)

Vin = 4V

Vin = 6V

*Note: Measurements were taken with Power supply: ZUP 20-40 from Nemic Lambda; Electronic load: 6063B from Agilent; Multimeter: Fluke 45

from Fluke and 34401 digital multimeter from Agilent; Scope: Infiniium 54815A from Agilent.