©2006 Bel Fuse Inc. Specifications subject to change without notice. 11.06

POWER PRODUCTS

GPBW52V04

Bel Power Inc. 155 Flanders Road, Westborough, MA 01581 • Tel 508-870-9775 • Fax 508-870-9796 • www.belpower.com

BOLERO HV DC/DC CONVERTERS

48V Input – 52VDC – 4A Output

page 6

Efficiency Data

Efficiency

94

92

90

88

86

84

82

80

0

1

2

3

4

Load Current (A)

40V Vin

48V Vin

60V Vin

36V Vin

48V Vin

75V Vin

Power Dissipation

1

2

Ch2

5.00 V

M 10.0ms A Ch2

1.80V

T

T

[

]

BW

BW

Ripple

150

100

50

0

-50

-100

-150

0

5

10

15

20

25

Time (µS)

Vout

Start Up

Voltage Ripple

10µF ext cap 2MHz BW

Line/Load Regulation

52.800

52.900

53.000

53.100

53.200

53.300

53.400

53.500

53.600

53.700

0

2

4

Output Current (A)

36V Vin

48V Vin

75V Vin