DC/DC Converter

BASIC CHARACTERISTICS

Parameter

Condition

Min.

Typ.

Max.

Internal Input Filter

Pi type

Input Voltage Range

nom. Vin= 24VDC

9VDC

24VDC

36VDC

nom. Vin= 48VDC

18VDC

48VDC

75VDC

Input Surge Voltage

3 second max.

nom. Vin= 24VDC

50VDC

nom. Vin= 48VDC

100VDC

Under Voltage Lockout

nom. Vin= 24VDC

DC-DC ON

DC-DC OFF

7.8VDC

8.6VDC

nom. Vin= 48VDC

DC-DC ON

DC-DC OFF

15.8VDC

17.4VDC

Quiescent Current

nom. Vin= 24VDC

13mA

nom. Vin= 48VDC

10mA

Output Voltage Trimming

5Vout, 12Vout

-10%

+10%

15Vout, 24Vout

-10%

+20%

Minimum Load

0%

Start-up Time

ON/OFF CTRL

10ms

60ms

Power up

30ms

60ms

Rise Time

5ms

DC-DC ON

Open or 3.5VDC - 12VDC

DC-DC OFF

Short or 0VDC - 1.2VDC

Input Current of CTRL Pin

DC-DC ON

-0.5mA

1mA

Standby Current

DC-DC OFF

2.5mA

Internal Operating Frequency

220kHz

250kHz

300kHz

Output Ripple and Noise (20MHz BW)

with a 10µF X7R/MLCC

5Vout, single and dual

50mVp-p

12 & 15Vout, single and dual

75mVp-p

with a 4.7µF X7R/MLCC

24Vout single

100mVp-p

continued on next page

www.recom-power.com

REV.: 0/2018

MED-2

REM20-W

Series

Efficiency vs. Load

REM20-2405SW

REM20-2412SW

0

10

20

30

40

50

60

70

80

90

100

100

80

60

40

90

70

50

30

20

10

0

Output Load [%]

24Vin

18Vin

12Vin

9Vin

0

10

20

30

40

50

60

70

80

90

100

100

80

60

40

90

70

50

30

20

10

0

Output Load [%]

24Vin

18Vin

12Vin

9Vin

Notes:

Note4: The ON/OFF control function is positive logic. The pin voltage is referenced to -Vin pin