Features
Unregulated
Converters
Description
• Industry standard pinout
• 1kVDC or 2kVDC isolation
• UL94 V-0 package material
• Fully encapsulated
• Efficiency up to 85%
DC/DC Converter
RO
1 Watt
SIP4
Single Output
The RO DC/DC converters are typically used in general purpose power isolation and voltage
matching applications, and feature a full industrial operating temperature range of -40°C to +85°C
without derating.
Selection Guide
Part
Number
RO-xx3.3S
(3,4)
RO-xx05S
(3,4)
RO-xx09S
(3,4)
RO-xx12S
(3,4)
RO-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
Output
Voltage
[VDC]
3.3
5
9
12
15
24
Output
Current
[mA]
303
200
111
83
66
42
Efficiency
typ.
(1)
[%]
75
78-80
78-80
80-84
80-84
78-85
max. Capacitive
Load
(2)
[µF]
2200
1000
1000
470
470
220
RO-xx24S
(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
Model Numbering
RO- __ __S/_
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-123.3S/P: 12V Input Voltage, 3.3V Output Voltage, Single Output with continuous short circuit protection
RO-0509S/HP: 5V Input Voltage, 9V Output Voltage, Single Output with 2kVDC Isolation and continuous short circuit protection
IEC60950-1 certified
EN60950-1 certified
UL60950-1 certified
CB Report
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REV.: 1/2018
ECO-1
RO
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Internal Input Filter
Input Voltage Range
Minimum Load
(5)
Start-up time
Internal Operating Frequency
Output Ripple and Noise
20MHz BW
Notes:
Note5: Operation below 10% load will not harm the converter, but specifications may not be met
50kHz
100kHz
0%
250ms
105kHz
100mVp-p
±10%
Series
Condition
Min.
Typ.
Max.
capacitor
Efficiency vs. Load
RO-xx05S
100
90
80
100
90
80
RO-xx12S
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
3.312
0512
1212
90
100
Output Load [%]
Output Load [%]
RO-xx15S
100
90
80
Efficiency [%]
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 [%]
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REV.: 1/2018
ECO-2
RO
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
REGULATIONS
Parameter
Output Accuracy
Line Regulation
Load Regulation
low line to high line
10% to 100% load
3.3Vout
5Vout
12, 15, 24Vout
Series
Condition
Value
-2% typ. / ±5.0% max.
±1.2% of 1.0% Vin typ.
20.0% max.
15.0% max.
10.0% max.
Tolerance Envelope
RO-xx3.3S and RO-xx05S
+10%
+7%
+10%
RO-xx12S and RO-xx15S
Output Voltage [%]
Output Voltage [%]
Typical
L
oad Lin
e
+5%
-2%
-5%
+5%
Vnom
Typical L
o
ad Line
+5%
-2%
-5%
Vnom
0
50
100
0
50
100
Output Load [%]
Output Load [%]
Deviation vs. Load
25
20
15
RO-xx05S
3.305
0505
1205
25
20
15
RO-xx12S
3.312
0512
1212
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 [%]
25
20
15
Output Load [%]
RO-xx15S
3.315
0515
1215
Deviation [%]
10
5
0
-5
-10
0
10
20
30
40
50
60
70
80
90
100
Output Load [%]
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REV.: 1/2018
ECO-3
RO
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
Series
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.
15pF min. / 120pF 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
Maximum Case Temperature
Temperature Coefficient
Thermal Impedance
Operating Altitude
Operating Humidity
Pollution Degree
MTBF
according to MIL-HDBK-217F, G.B.
+25°C
+85°C
non-condensing
Condition
full load (see graph)
Value
-40°C to +85°C
+110°C
±0.03%/°C
67°C/W
2000m
95% RH max.
PD2
11800 x 10
3
hours
4800 x 10
3
hours
Derating Graph
100
90
80
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
85
Ambient Temperature [°C]
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REV.: 1/2018
ECO-4
RO
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load unless otherwise stated)
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Information Technology Equipment, General Requirements for Safety
Information Technology Equipment, General Requirements for Safety
Information Technology Equipment, General Requirements for Safety (CB)
EAC
RoHs 2+
Series
Report / File Number
1602031
E358085-A4-UL
E322406-A4-CB-1
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
IEC60950-1:2005, 2nd Edition
TP TC 004/2011
RoHS-2011/65/EU + AM-2015/863
EMC Compliance
Information technology equipment - Radio disturbance
characteristics - Limits and methods of measurement
Condition
with external filter
Standard / Criterion
EN55032, Class B
EN55032, Class A
EMC Filtering Suggestions according to EN55032
C3
L1
+V
IN
C1
C2
+V
OUT
-V
IN
C4
-V
OUT
Component List Class A
Model
3.3, 5, 9Vin
12, 15, 24Vin
Component List Class B
C1
C2
1nF
50V, MLCC
C4 (safety)
-
2.2nF, 5KV, Johanson
Model
all types
L1
C1
C3 (safety) C4(safety)
10µF
100V, MLCC
22µH choke
10µF
1nF
2.2nF
RP4532Z-220K MLCC, 100V 5KV, Johanson 5KV, Johanson
DIMENSION AND PHYSICAL CHARACTERISTICS
Parameter
Material
Dimension (LxWxH)
Weight
continued on next page
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REV.: 1/2018
ECO-5
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.
stm32/stm8
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