QLS30 Series – 30A Quarter-Brick DC/DC Converter

48V Input

Data Sheet

1.8V, 1.5V, 1.2V Output

REV. 10/01

Characteristic Curves

50

55

60

65

70

75

80

85

90

95

0

3

6

9

12

15

18

21

24

27

30

Output current, A

36V

48V

75V

Fig. 1 QLS30ZB Efficiency vs. Output Load

50

55

60

65

70

75

80

85

90

0

3

6

9

12

15

18

21

24

27

30

Output current, A

36V

48V

75V

Fig. 2 QLS30ZA Efficiency vs. Output Load

50

55

60

65

70

75

80

85

90

95

0

3

6

9

12151821

242730

Output current, A

36V

48V

75V

Fig. 3 QLS30ZY Efficiency vs. Output Load

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

0

10

2030

405060

70

Input Voltage, VDC

Fig. 4 QLS30ZB Input Characteristic

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0

1020

3040

5060

70

Input voltage, VDC

Fig. 5 QLS30ZA Input Characteristic

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0

1020

3040506070

Input voltage, VDC

Fig. 6 QLS30ZY Input Characteristic