Features
Unregulated
Converters
• Micro size SIP4 package
• 3kVDC/1s basic isolation
• Industry standard pinout
• Optional continuous short circuit protection
• UL94V-0 package material
• Efficiency up to 85%
Description
The ROM Micro Size DC/DC converter has been designed for isolating or converting DC power rails
where board height is at a premium. Although it has a micro-size 7.7mm package, it does not compromise on features and offers a high 3kVDC Isolation , a –40°C to +85°C operating temperature range
and optional continuous short circuit protection.
DC/DC Converter
ROM
1 Watt
SIP4
Micro Size
Single Output
Selection Guide
Part
Number
nom. Input
Output
Output
Efficiency max. Capacitive
Voltage Voltage Current typ. (1) Load (2)
[VDC] [VDC] [mA] [%]
[µF]
ROM-xx05S (3)
3.3, 5, 12
5
200
70-78
1000
ROM-xx12S
3.3, 5, 12
12
83
78-82
470
ROM-xx15S (3)
3.3, 5, 12
15
67
80-84
470
(3)
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
ROM- __
nom. Input Voltage
Output Voltage
S/
“Protection (3)”
Single
UL60950-1 certified
CAN/CSA-C22.2 No 60950-1 certified
EN60950-1 certified
IEC60950-1 certified
EN55032 compliant
CB report
Notes:
Note3: standard part is without continuous short circuit protection
add suffix „/P“ for continuous short circuit protection
Ordering Examples:
ROM-1205S: 12VDC Input Voltage, 5VDC Output Voltage, Single Output
ROM-0515S/P: 5VDC Input Voltage, 15VDC Output Voltage, Single Output with continuous short circuit protection
www.recom-power.com
REV.: 3/2019
ECO-1
ROM
DC/DC Converter
Series
Specifications (measured @ Ta= 25°C, nom. Vin and full load otherwise stated)
BASIC CHARACTERISTICS
Parameter
Condition
Min.
Typ.
Input Voltage Range
Max.
±10%
Minimum Load
Internal Operating Frequency
0%
50kHz
Output Ripple and Noise
100kHz
105kHz
20MHz BW
100mVp-p
Efficiency vs. Load
ROM-xx12S
100
100
90
90
80
80
70
70
Efficiency [%]
Efficiency [%]
ROM-xx05S
60
50
40
50
40
30
30
3.305
0505
1205
20
10
0
60
0
10
20
30
40
50
60
70
80
90
3.312
0512
1212
20
10
0
100
0
10
20
30
40
50
60
70
80
90
100
Output Load [%]
Output Load [%]
ROM-xx15S
100
90
Efficiency [%]
80
70
60
50
40
30
3.315
0515
1215
20
10
0
0
10
20
30
40
50
60
70
80
90
100
Output Load [%]
REGULATIONS
Parameter
Condition
Output Accuracy
Line Regulation
Value
±5.0% max.
low line to high line
±1.2% of 1.0% Vin typ.
continued on next page
www.recom-power.com
REV.: 3/2019
ECO-2
ROM
DC/DC Converter
Series
Specifications (measured @ Ta= 25°C, nom. Vin and full load otherwise stated)
Parameter
Condition
Load Regulation (5)
Value
5Vout
12, 15Vout
10% to 100% load
15.0% max.
10.0% max.
Notes:
Note5: Operation below 10% load will not harm the converter, but specifications may not be met
Deviation vs. Load
ROM-xx05S
25
3.305
0505
1205
20
15
10
5
10
5
0
0
-50
-50
0
10
20
30
40
50
60
70
80
90
3.312
0512
1212
20
Deviation [%]
Deviation [%]
15
-10
ROM-xx12S
25
-10
100
0
10
20
30
Output Load [%]
50
60
70
80
90
100
ROM-xx15S
25
3.315
0515
1215
20
15
Deviation [%]
40
Output Load [%]
10
5
0
-50
-10
0
10
20
30
40
50
60
70
80
90
100
Output Load [%]
PROTECTIONS
Parameter
Type
Short Circuit Protection (SCP)
Isolation Voltage (6)
Value
without suffix
with suffix “/P”
1 second
continuous
tested for 1 second
rated for 1 minute
I/P to O/P
3kVDC
1.5kVAC/60Hz
15GΩ min.
Isolation Resistance
Isolation Capacitance
20pF min. / 75pF max.
basic (IEC/EN60950-1)
functional (IEC/EN60601-1)
Insulation Grade
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
www.recom-power.com
REV.: 3/2019
ECO-3
ROM
DC/DC Converter
Series
Specifications (measured @ Ta= 25°C, nom. Vin and full load otherwise stated)
ENVIRONMENTAL
Parameter
Condition
Operating Temperature Range
Value
full load @ free air convection (see graph)
-40°C to +85°C
2000m (IEC/EN60950-1)
3000m (IEC/EN60601-1)
Operating Altitude
Operating Humidity
non-condensing
95% RH max.
Pollution Degree
PD2
MTBF
according to MIL-HDBK-217F, G.B.
+25°C
+85°C
977 x 10 hours
189 x 103 hours
3
Derating Graph
(@ free air convection)
100
90
Output Load [%]
80
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]
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Report / File Number
Information Technology Equipment, General Requirements for Safety
E358085-A4-UL
Information Technology Equipment, General Requirements for Safety (CB)
E322406-A4-CB-1
Information Technology Equipment, General Requirements for Safety
LVD1602031
Medical electrical equipment Part 1: General requirements for basic
safety and essential performance
WD-SE-R-180676-A0
EAC
RU-AT.49.09571
RoHS 2
EMC Compliance
Electromagnetic compatibility of multimedia equipment Emission requirements
Standard
UL60950-1, 2nd Edition:2007
CAN/CSA C22.2 No. 60950-1-03, 2nd Edition:2007
IEC60950-1:2005, 2nd Edition
IEC60950-1:2005, 2nd Edition + A2:2013
EN60950-1:2006 + A2:2013
EN60601-1:2006 + A12:2014
IEC60601-1:2005 + A1:2012, 3rd Edition
TP TC 004/2011
RoHS-2011/65/EU + AM-2015/863
Condition
Standard / Criterion
with external filter
(refer to “EMC Filter”)
EN55032, Class A and B
continued on next page
www.recom-power.com
REV.: 3/2019
ECO-4
ROM
DC/DC Converter
Series
Specifications (measured @ Ta= 25°C, nom. Vin and full load otherwise stated)
EMC Filter Suggestion according to EN55032
C2
L1
+Vin
+Vin
+Vout
-Vin
-Vout
+Vout
C1
-Vin
-Vout
C3
Component List Class A
MODEL
ROM-0505S
ROM-1205S
ROM-2405S
Component List Class B
C1
L1
10µF
100V MLCC
N/A
C2 (safety) C3 (safety)
N/A
MODEL
N/A
ROM-0505S
2.2nF
ROM-1205S
2.2nF
ROM-2405S
C1
L1
C2 (safety) C3 (safety)
10µF
22µH choke
100V MLCC RLS-226
1nF
2.2nF
Notes:
Note8: Filter suggestions are valid for indicated part numbers only. For other part numbers, please contact RECOM tech support for advice
DIMENSION AND PHYSICAL CHARACTERISTICS
Parameter
Type
Value
Material
case
potting
PCB
non-conductive black plastic (UL94 V-0)
epoxy, (UL94 V-0)
FR4, (UL94 V-0)
Dimension (LxWxH)
11.5 x 6.05 x 7.7mm
Weight
1g typ.
Dimension Drawing (mm)
embossed logo
6.0
Pinning information
1.00
0.7Ø
+0.15/-0
Pin #
1
2
3
4
Single
-Vin
+Vin
-Vout
+Vout
Tolerance:
xx.x= ±0.5mm
xx.xx= ±0.25mm
Recommended Footprint Details
1.00Ø +0.15/-0
2.54
7.62
1.27
1.90
0.25±0.05
4.10
0.51+0.10/-0.05
1.80
0.51
7.7
11.5
Top View
1 2 3 4
1 2 3 4
Bottom View
2.54
www.recom-power.com
REV.: 3/2019
ECO-5
ROM
DC/DC Converter
Series
Specifications (measured @ Ta= 25°C, nom. Vin and full load otherwise stated)
PACKAGING INFORMATION
Parameter
Type
Value
Packaging Dimension (LxWxH)
tube
520.0 x 16.0 x 9.0mm
Packaging Quantity
tube
42pcs
Storage Temperature Range
Storage Humidity
-55°C to +125°C
non-condensing
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.
www.recom-power.com
REV.: 3/2019
ECO-6
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