www.recom-power.com

REV.: 0/2019

RBB-2

DC/DC Converter

RBBA3000

Series

Parameter

Condition

Min.

Typ.

Max.

Minimum Load

0%

Start-up time

ON/OFF CTRL

Power Up

30ms

30ms

Rise Time

300mV/ms

nom. Vin= 48VDC

DC-DC ON

DC-DC OFF

0VDC <V

3.5VDC <V

Input Current of CTRL Pin

nom. Vin= 48VDC

1mA

Standby Current

nom. Vin= 48VDC

DC-DC OFF

2mA

Current Monitor or Current Share

“Ishare”

reference voltage at no load

reference voltage at full load (50A)

0.2VDC

2.7VDC

Internal Operating Frequency

100kHz

280kHz

400kHz

20MHz BW

100mVp-p

Absolute Maximum Capacitive Load

<1 second start up

15000µF

continued on next page

Notes:

Note5: The ON/OFF CTRL is normally OFF

Note6: Measurements are made with a 100µF E-Cap across output (low ESR)

Efficiency vs. Load

0

5

10

15

20

25

30

35

40

45

50

100

80

60

40

90

70

50

30

20

10

0

Output Current [A]

24Vin/48Vout

48Vin/24Vout

60

40

20

50

30

10

0

0

5

10

15

20

25

30

35

40

45

50

Output Current [A]

24Vin/48Vout

48Vin/24Vout

Safe Operating Area

Power Dissipation vs. Output Current

55

50

45

35

30

20

40

25

15

10

5

0

Input Voltage [VDC]

10

20

30

40

50

60

48Vout

24Vout

12Vout