Features
Unregulated
Converters
Description
• Efficiency up to 84%
• Low deviation (10%-100% load)
• 1kVDC and 2kVDC isolation option
• IEC/EN/UL60950-1 safety certified
• -40°C to +100°C operating temperature range
• 1W SIP4 package
DC/DC Converter
RO/E
1 Watt
SIP4
Single Output
The RO/E series is an unregulated DC/DC converter in standard SIP4 package style. This series has
been designed to offer exceptionally high efficiency at low loads, an extended operating temperature
range and low deviation (10% to 100% load). Uses include applications with restricted energy budget
and industrial applications where a high efficiency level is required.
Selection Guide
Part
Number
RO-3.305S/E
(3,4)
RO-0505S/E
(3,4)
RO-1205S/E
(3,4)
RO-2405S/E
(3,4)
nom. Input
Voltage
[VDC]
3.3
5
12
24
Output
Voltage
[VDC]
5
5
5
5
Output
Current
[mA]
200
200
200
200
Efficiency
typ.
(1)
[%]
83
84
84
81
max. Capacitive
Load
(2)
[µF]
2200
2200
2200
2200
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
Model Numbering
RO- __ 05S/E_
Input Voltage
Output Voltage
Protection
(3)
Isolation Option
(4)
Single
Notes:
Note3: standard part is without continuous short circuit protection
add suffix „/P“ for continuous short circuit protection
Note4: add suffix „/H“ for 2kVDC isolation
or add suffix „/HP“ for continuous short circuit protection and 2kVDC Isolation
Ordering Examples:
RO-3.305S/EP: 3.3V Input Voltage, 5V Output Voltage, Single Output with continuous short circuit protection
RO-0505S/EHP: 5V Input Voltage, 5V Output Voltage, Single Output with 2kVDC Isolation and continuous short circuit protection
UL60950-1 certified
IEC60950-1 certified
EN60950-1 certified
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REV.: 1/2018
ECO-1
RO/E
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Input Voltage Range
Minimum Load
(5)
Internal Operating Frequency
Output Ripple and Noise
20MHz BW
0%
20kHz
50mVp-p
Notes:
Note5: Operation below 10% load will not harm the converter, but specifications may not be met
90kHz
100mVp-p
Series
Condition
Min.
Typ.
±10%
Max.
Efficiency vs. Load
100
90
80
Efficiency [%]
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
3.305
0505
1205
2405
90
100
Output Load [%]
REGULATIONS
Parameter
Output Accuracy
Line Regulation
Load Regulation
low line to high line
10% to 100% load
Condition
Value
±5.0% max.
±1.2% max.
12.0% max.
Tolerance Envelope
+10%
Output Voltage [%]
+5%
Vnom
Typical L
o
ad Line
+5%
-2%
-5%
10
50
100
Output Load [%]
continued on next page
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REV.: 1/2018
ECO-2
RO/E
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
Deviation vs. Load
25
20
15
3.305
0505
1205
2405
Series
Deviation [%]
10
5
0
-50
-10
0
10
20
30
40
50
60
70
80
90
100
Output Load [%]
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
Type
without suffix
with suffix “/P”
without suffix
I/P to O/P
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.
75pF max.
functional
Isolation Voltage
(6)
Isolation Resistance
Isolation Capacitance
Insulation Grade
with suffix
“/H”
Notes:
Note6: For repeat Hi-Pot testing, reduce the time and/or the test voltage
Note7: Refer to local wiring regulations if input over-current protection is also required. Recommended fuse: T1A slow blow type
ENVIRONMENTAL
Parameter
Operating Temperature Range
Operating Altitude
Operating Humidity
Pollution Degree
MTBF
according to MIL-HDBK-217F, G.B.
continued on next page
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REV.: 1/2018
ECO-3
Condition
full load (see graph)
non-condensing
+25°C
+85°C
Value
-40°C to +100°C
2000m
95% RH max.
PD2
3459 x 10
3
hours
756 x 10
3
hours
RO/E
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
Derating Graph
100
90
80
Series
Output Load [%]
70
60
50
40
30
20
10
0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110
Ambient Temperature [°C]
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Information Technology Equipment, General Requirements for Safety
Information Technology Equipment, General Requirements for Safety
EAC
RoHs 2+
Report / File Number
1602031
E358085-A4-UL
RU-AT.49.09571
Standard
IEC60950-1:2005, 2nd Edition + A2:2013
EN60950-1:2006 + A2:2013
UL60950-1, 2nd Edition:2007
CAN/CSA C22.2 No. 60950-1-03, 2nd Edition:2007
TP TC 004/2011
RoHS-2011/65/EU + AM-2015/863
DIMENSION AND PHYSICAL CHARACTERISTICS
Parameter
Material
Dimension (LxWxH)
Weight
Type
case
potting
PCB
Value
non-conductive black plastic (UL94 V-0)
epoxy, (UL94 V-0)
FR4, (UL94 V-0)
11.5 x 6.0 x 10.0mm
1.4g typ.
Dimension Drawing (mm)
embossed logo
11.5
6.0
Pinning information
10.0
Marking
Pin #
1
2
3
4
0.25
±0.05
Tolerance:
xx.x= ±0.5mm
xx.xx= ±0.25mm
Single
-Vin
+Vin
-Vout
+Vout
0.51
4.10
0.51
+0.10/-0.05
1.90
7.62
Recommended Footprint Details
2.54
2.54
Bottom View
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1.25
1 2 3 4
1 2 3 4
Top View
REV.: 1/2018
ECO-4
RO/E
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
PACKAGING INFORMATION
Parameter
Packaging Dimension (LxWxH)
Packaging Quantity
Storage Temperature Range
Storage Humidity
Series
Type
tube
tube
Value
520.0 x 16.0 x 9.0mm
42pcs
-55°C to +125°C
95% RH max.
The product information and specifications may be subject to changes even without prior written notice.The product has been designed for various applications; its suitability lies in the responsibility of each customer. The
products are not authorized for use in safety-critical applications without RECOM’s explicit written consent. A safety-critical application is an application where a failure may reasonably be expected to endanger or cause
loss of life, inflict bodily harm or damage property. The applicant shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized
use of RECOM products in such safety-critical applications.
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REV.: 1/2018
ECO-5
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