Features
Unregulated
Converters
Description
• Low cost 1W converter
• Power sharing on dual output versions
• 1kVDC/1s or 2kVDC/1s isolation option
• Optional continuous short circuit protection
• Efficiency up to 85%
• UL94V-0 package material
DC/DC Converter
RB
The RB series DC/DC converter has been designed for isolating or converting DC power rails in
general purpose applications. Although low cost, it does not compromise on features and offers
1KVDC/1s or 2kVDC/1s isolation, a –40°C to +85°C operating temperature range and optional
continuous short circuit protection.
1 Watt
SIP7
Single and
Dual Output
Selection Guide
Part
Number
RB-xx3.3S
(3,4)
RB-xx05S
(3,4)
RB-xx09S
(3,4)
RB-xx12S
(3,4)
RB-xx15S
(3,4)
nom. Input
Voltage
[VDC]
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
Output
Voltage
[VDC]
3.3
5
9
12
15
24
±3.3
±5
±9
±12
±15
±24
Output
Current
[mA]
303
200
111
84
66
42
±152
±100
±56
±42
±33
±21
Efficiency
typ.
(1)
[%]
75
70-78
70-78
78-80
80-84
74-85
70
70-78
76-79
78-82
80-84
80-84
max. Capacitive
Load
(2)
[µF]
2200
2200
1000
470
470
220
±1000
±1000
±470
±220
±220
±100
RB-xx24S
(3,4)
RB-xx3.3D
(3,4)
RB-xx05D
(3,4)
RB-xx09D
(3,4)
RB-xx12D
(3,4)
RB-xx15D
(3,4)
RB-xx24D
(3,4)
Notes:
Note1: Efficiency is tested at nominal input and full load at +25°C ambient
Note2: Max Cap Load is tested at nominal input and full resistive load and is defined as the
capacitive load that will allow start up in under 1s without damage to the converter
E358085
UL60950-1 certified
CAN/CSA-C22.2 No 60950-1 certified
IEC/EN60950-1 certified
EN55032 compliant
Model Numbering
RB- __
nom. Input Voltage
Output Voltage
/
“Protection
(4)
”
“Isolation Option
(3)
”
Single
or
Dual
Notes:
Note3: standard part is without Continuous Short Circuit Protection
add suffix „/P“ for Continuous Short Circuit Protection
Note4: standard part is with 1kVDC/1s Isolation
add suffix „/H“ for 2kVDC/1s Isolation
or add suffix „/HP“ for 2kVDC/1s Isolation and Continuous Short Circuit Protection
Ordering Examples:
RB-123.3/P: 12VDC Input Voltage, 3.3VDC Output Voltage, Single Output with continuous short circuit protection and 1kVDC/1s isolation
RB-0509D/HP: 5VDC Input Voltage, ±9VDC Output Voltage, Dual Output with continuous short circuit protection and 2kVDC/1s isolation
www.recom-power.com
REV.: 1/2019
ECO-1
RB
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load otherwise stated)
Efficiency vs. Load
RB-xx05D
100
90
80
100
90
80
Series
RB-xx09D
Efficiency [%]
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
3.305
0505
1205
90
100
Efficiency [%]
70
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
3.309
0509
1209
90
100
Output Load [%]
Output Load [%]
RB-xx12D
100
90
80
100
90
80
RB-xx15D
Efficiency [%]
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
3.312
0512
1212
90
100
Efficiency [%]
70
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
3.315
0515
1215
90
100
Output Load [%]
Output Load [%]
REGULATIONS
Parameter
Output Accuracy
Line Regulation
Load Regulation
(5)
low line to high line
10% to 100% load
3.3, 5Vout
9, 12, 15, 24Vout
Condition
Value
±5.0% typ.
±1.2% of 1.0% Vin typ.
15.0% max.
10.0% max.
Notes:
Note5: Operation below 10% load will not harm the converter, but specifications may not be met
continued on next page
www.recom-power.com
REV.: 1/2019
ECO-3
RB
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load otherwise stated)
Deviation vs. Load
RB-xx12D
25
20
15
3.312
0512
1212
25
20
15
3.315
0515
1215
Series
RB-xx15D
Deviation [%]
10
5
0
-5
-10
0
10
20
30
40
50
60
70
80
90
100
Deviation [%]
10
5
0
-5
-10
0
10
20
30
40
50
60
70
80
90
100
Output Load [%]
Output Load [%]
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
Type
without suffix
with suffix “/P”
without suffix
I/P to O/P
with suffix “/H”
tested for 1 second
rated for 1 minute
tested for 1 second
rated for 1 minute
Value
1 second
continuous
1kVDC
500VAC/60Hz
2kVDC
1kVAC/60Hz
10GΩ min.
20pF min. / 75pF max.
basic (IEC/EN60950-1)
functional (IEC/EN60601-1)
Isolation Voltage
(6)
Isolation Resistance
Isolation Capacitance
Insulation Grade
Notes:
Note6: For repeat Hi-Pot testing, reduce the time and/or the test voltage
Note7: Refer to local saftey regulations if input over-current protection is also required. Recommended fuse: slow blow type
ENVIRONMENTAL
Parameter
Operating Temperature Range
Maximum Case Temperature
Temperature Coefficient
Thermal Impedance
Operating Altitude
Operating Humidity
Pollution Degree
MTBF
according to MIL-HDBK-217F, G.B.
continued on next page
www.recom-power.com
REV.: 1/2019
ECO-5
Condition
full load @ free air convection, refer to
“Derating Graph”
Value
-40°C to +85°C
+105°C
±0.03%/K typ.
56K/W typ.
3000m
non-condensing
+25°C
+85°C
95% RH max.
PD2
16400 x 10
3
hours
10200 x 10
3
hours
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