CME Series
www.murata-ps.com
Isolated 0.75W Single Output Isolated DC-DC Converters
SELECTION GUIDE
% mV p-p % MIL. Tel.
V V mA mA pF
Typ. Max. Typ. Max. Min. Typ. kHrs
CME0505DC 5 5 150 218 10 12 15 25 67 70 30 3400
FEATURES
CME0505SC 5 5 150 218 10 12 15 25 67 70 30 3400
CME0512SC 5 12 63 195 5 7 20 30 72 77 33 2200
Short circuit protection options
?
3KVDC isolation options
UL 60950 recognised
?
CME0303S3C 3.3 3.3 227 300 9 12 15 25 66 73 30 1230
CME0305S3C 3.3 5 150 300 9 12 15 25 68 73 35 630
Single Isolated output
?
CME0505S3C 5 5 150 218 9 12 15 25 65 70 28 2400
1kVDC or 3kVDC option ?Hi Pot Test?
?
CME0512S3C 5 12 63 200 5 7 10 15 70 75 30 630
Wide temperature performance at full Short Circuit Protection Options
?
CME0505SPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
0.75W load -40?C to 85?C
?
CME0505DPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
Industry Standard Pinout
?
INPUT CHARACTERISTICS
3.3V and 5V Inputs
?
Parameter Conditions Min. Typ. Max. Units
3.3V, 5V & 12V outputs Continuous operation, 3.3V input types 2.97 3.3 3.63
?
Voltage range V
Continuous operation, 5V input types 4.5 5.0 5.5
Pin Compatible with LME, MEE1, MEE3,
?
Input short circuit current Short circuit variants 95 mA
NKE, NME, & NML series
3.3V input types 1.5 2
Input re?ected ripple
mA p-p
5V input types 2 2.5
current
Short circuit types 3 15
PRODUCT OVERVIEW
OUTPUT CHARACTERISTICS
The CME series are a cost effective 0.75W DC-DC
Parameter Conditions Min. Typ. Max. Units
converter series, in industry standard packages
2
with industry standard pinout, Popular input and
Rated Power TA=-40?C to 85?C, see derating graphs 0.75 W
output voltages are available as a lower power
Voltage Set Point Accuracy See tolerance envelope
alternative to a 1W DC-DC converter. The galvanic
High VIN to low VIN ; Short circuit types 1.15 1.2
Line regulation %/%
isolation allows the device to be con?gured to
High VIN to low VIN ; All other output types 1.0 1.2
provide an isolated negative rail in systems where
only positive rails exist. The wide temperature
ISOLATION CHARACTERISTICS
range guarantees startup from ?40?C and full 0.75
Parameter Conditions Min. Typ. Max. Units
watt output at 85?C. For the short circuit protected
C Versions Flash tested for 1 second 1000
Isolation test voltage VDC
parts (PC) protection is continuous and
3C Versions Flash tested for 1 second 3000
auto-resetting on removal of the short circuit.
Resistance Viso= 1000VDC 10 G?
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
CME0505XC 120
Switching frequency Short circuit types 91 kHz
All other types 135
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 260?C
Input voltage VIN, 3.3V input 5.5V
Input voltage VIN, 5V input 7V
1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
2. See derating curve.
For full details go to
www.murata-ps.com/rohs All speci?cations typical at TA=25?C, nominal input voltage and rated output current unless otherwise speci?ed.
www.murata-ps.com/support
KDC_CME.B02 Page 1 of 11
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current
Input Current
at Rated Load
Load Regulation
Ripple & Noise
Ef?ciency
Isolation
Capacitance
1
MTTFCME Series
www.murata-ps.com
Isolated 0.75W Single Output Isolated DC-DC Converters
SELECTION GUIDE
% mV p-p % MIL. Tel.
V V mA mA pF
Typ. Max. Typ. Max. Min. Typ. kHrs
CME0505DC 5 5 150 218 10 12 15 25 67 70 30 3400
FEATURES
CME0505SC 5 5 150 218 10 12 15 25 67 70 30 3400
CME0512SC 5 12 63 195 5 7 20 30 72 77 33 2200
Short circuit protection options
?
3KVDC isolation options
UL 60950 recognised
?
CME0303S3C 3.3 3.3 227 300 9 12 15 25 66 73 30 1230
CME0305S3C 3.3 5 150 300 9 12 15 25 68 73 35 630
Single Isolated output
?
CME0505S3C 5 5 150 218 9 12 15 25 65 70 28 2400
1kVDC or 3kVDC option ?Hi Pot Test?
?
CME0512S3C 5 12 63 200 5 7 10 15 70 75 30 630
Wide temperature performance at full Short Circuit Protection Options
?
CME0505SPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
0.75W load -40?C to 85?C
?
CME0505DPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
Industry Standard Pinout
?
INPUT CHARACTERISTICS
3.3V and 5V Inputs
?
Parameter Conditions Min. Typ. Max. Units
3.3V, 5V & 12V outputs Continuous operation, 3.3V input types 2.97 3.3 3.63
?
Voltage range V
Continuous operation, 5V input types 4.5 5.0 5.5
Pin Compatible with LME, MEE1, MEE3,
?
Input short circuit current Short circuit variants 95 mA
NKE, NME, & NML series
3.3V input types 1.5 2
Input re?ected ripple
mA p-p
5V input types 2 2.5
current
Short circuit types 3 15
PRODUCT OVERVIEW
OUTPUT CHARACTERISTICS
The CME series are a cost effective 0.75W DC-DC
Parameter Conditions Min. Typ. Max. Units
converter series, in industry standard packages
2
with industry standard pinout, Popular input and
Rated Power TA=-40?C to 85?C, see derating graphs 0.75 W
output voltages are available as a lower power
Voltage Set Point Accuracy See tolerance envelope
alternative to a 1W DC-DC converter. The galvanic
High VIN to low VIN ; Short circuit types 1.15 1.2
Line regulation %/%
isolation allows the device to be con?gured to
High VIN to low VIN ; All other output types 1.0 1.2
provide an isolated negative rail in systems where
only positive rails exist. The wide temperature
ISOLATION CHARACTERISTICS
range guarantees startup from ?40?C and full 0.75
Parameter Conditions Min. Typ. Max. Units
watt output at 85?C. For the short circuit protected
C Versions Flash tested for 1 second 1000
Isolation test voltage VDC
parts (PC) protection is continuous and
3C Versions Flash tested for 1 second 3000
auto-resetting on removal of the short circuit.
Resistance Viso= 1000VDC 10 GO
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
CME0505XC 120
Switching frequency Short circuit types 91 kHz
All other types 135
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 260?C
Input voltage VIN, 3.3V input 5.5V
Input voltage VIN, 5V input 7V
1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
2. See derating curve.
For full details go to
www.murata-ps.com/rohs All speci?cations typical at TA=25?C, nominal input voltage and rated output current unless otherwise speci?ed.
www.murata-ps.com/support
KDC_CME.B02 Page 1 of 11
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current
Input Current
at Rated Load
Load Regulation
Ripple & Noise
Ef?ciency
Isolation
Capacitance
1
MTTFCME Series
Isolated 0.75W Single Output Isolated DC-DC Converters
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Speci?cation All output types -40 85
Storage -50 130
3.3V & 5V output types 41 ?C
Case temperature rise above 12V output types 32
ambient
Short circuit types (DIP) 23
Short circuit types (SIP) 24
Cooling Free air convection
www.murata-ps.com/support
KDC_CME.B02 Page 2 of 11CME Series
www.murata-ps.com
Isolated 0.75W Single Output Isolated DC-DC Converters
SELECTION GUIDE
% mV p-p % MIL. Tel.
V V mA mA pF
Typ. Max. Typ. Max. Min. Typ. kHrs
CME0505DC 5 5 150 218 10 12 15 25 67 70 30 3400
FEATURES
CME0505SC 5 5 150 218 10 12 15 25 67 70 30 3400
CME0512SC 5 12 63 195 5 7 20 30 72 77 33 2200
Short circuit protection options
?
3KVDC isolation options
UL 60950 recognised
?
CME0303S3C 3.3 3.3 227 300 9 12 15 25 66 73 30 1230
CME0305S3C 3.3 5 150 300 9 12 15 25 68 73 35 630
Single Isolated output
?
CME0505S3C 5 5 150 218 9 12 15 25 65 70 28 2400
1kVDC or 3kVDC option ?Hi Pot Test?
?
CME0512S3C 5 12 63 200 5 7 10 15 70 75 30 630
Wide temperature performance at full Short Circuit Protection Options
?
CME0505SPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
0.75W load -40?C to 85?C
?
CME0505DPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
Industry Standard Pinout
?
INPUT CHARACTERISTICS
3.3V and 5V Inputs
?
Parameter Conditions Min. Typ. Max. Units
3.3V, 5V & 12V outputs Continuous operation, 3.3V input types 2.97 3.3 3.63
?
Voltage range V
Continuous operation, 5V input types 4.5 5.0 5.5
Pin Compatible with LME, MEE1, MEE3,
?
Input short circuit current Short circuit variants 95 mA
NKE, NME, & NML series
3.3V input types 1.5 2
Input re?ected ripple
mA p-p
5V input types 2 2.5
current
Short circuit types 3 15
PRODUCT OVERVIEW
OUTPUT CHARACTERISTICS
The CME series are a cost effective 0.75W DC-DC
Parameter Conditions Min. Typ. Max. Units
converter series, in industry standard packages
2
with industry standard pinout, Popular input and
Rated Power TA=-40?C to 85?C, see derating graphs 0.75 W
output voltages are available as a lower power
Voltage Set Point Accuracy See tolerance envelope
alternative to a 1W DC-DC converter. The galvanic
High VIN to low VIN ; Short circuit types 1.15 1.2
Line regulation %/%
isolation allows the device to be con?gured to
High VIN to low VIN ; All other output types 1.0 1.2
provide an isolated negative rail in systems where
only positive rails exist. The wide temperature
ISOLATION CHARACTERISTICS
range guarantees startup from ?40?C and full 0.75
Parameter Conditions Min. Typ. Max. Units
watt output at 85?C. For the short circuit protected
C Versions Flash tested for 1 second 1000
Isolation test voltage VDC
parts (PC) protection is continuous and
3C Versions Flash tested for 1 second 3000
auto-resetting on removal of the short circuit.
Resistance Viso= 1000VDC 10 GO
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
CME0505XC 120
Switching frequency Short circuit types 91 kHz
All other types 135
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 260?C
Input voltage VIN, 3.3V input 5.5V
Input voltage VIN, 5V input 7V
1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
2. See derating curve.
For full details go to
www.murata-ps.com/rohs All speci?cations typical at TA=25?C, nominal input voltage and rated output current unless otherwise speci?ed.
www.murata-ps.com/support
KDC_CME.B02 Page 1 of 11
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current
Input Current
at Rated Load
Load Regulation
Ripple & Noise
Ef?ciency
Isolation
Capacitance
1
MTTFCME Series
www.murata-ps.com
Isolated 0.75W Single Output Isolated DC-DC Converters
SELECTION GUIDE
% mV p-p % MIL. Tel.
V V mA mA pF
Typ. Max. Typ. Max. Min. Typ. kHrs
CME0505DC 5 5 150 218 10 12 15 25 67 70 30 3400
FEATURES
CME0505SC 5 5 150 218 10 12 15 25 67 70 30 3400
CME0512SC 5 12 63 195 5 7 20 30 72 77 33 2200
Short circuit protection options
?
3KVDC isolation options
UL 60950 recognised
?
CME0303S3C 3.3 3.3 227 300 9 12 15 25 66 73 30 1230
CME0305S3C 3.3 5 150 300 9 12 15 25 68 73 35 630
Single Isolated output
?
CME0505S3C 5 5 150 218 9 12 15 25 65 70 28 2400
1kVDC or 3kVDC option ?Hi Pot Test?
?
CME0512S3C 5 12 63 200 5 7 10 15 70 75 30 630
Wide temperature performance at full Short Circuit Protection Options
?
CME0505SPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
0.75W load -40?C to 85?C
?
CME0505DPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
Industry Standard Pinout
?
INPUT CHARACTERISTICS
3.3V and 5V Inputs
?
Parameter Conditions Min. Typ. Max. Units
3.3V, 5V & 12V outputs Continuous operation, 3.3V input types 2.97 3.3 3.63
?
Voltage range V
Continuous operation, 5V input types 4.5 5.0 5.5
Pin Compatible with LME, MEE1, MEE3,
?
Input short circuit current Short circuit variants 95 mA
NKE, NME, & NML series
3.3V input types 1.5 2
Input re?ected ripple
mA p-p
5V input types 2 2.5
current
Short circuit types 3 15
PRODUCT OVERVIEW
OUTPUT CHARACTERISTICS
The CME series are a cost effective 0.75W DC-DC
Parameter Conditions Min. Typ. Max. Units
converter series, in industry standard packages
2
with industry standard pinout, Popular input and
Rated Power TA=-40?C to 85?C, see derating graphs 0.75 W
output voltages are available as a lower power
Voltage Set Point Accuracy See tolerance envelope
alternative to a 1W DC-DC converter. The galvanic
High VIN to low VIN ; Short circuit types 1.15 1.2
Line regulation %/%
isolation allows the device to be con?gured to
High VIN to low VIN ; All other output types 1.0 1.2
provide an isolated negative rail in systems where
only positive rails exist. The wide temperature
ISOLATION CHARACTERISTICS
range guarantees startup from ?40?C and full 0.75
Parameter Conditions Min. Typ. Max. Units
watt output at 85?C. For the short circuit protected
C Versions Flash tested for 1 second 1000
Isolation test voltage VDC
parts (PC) protection is continuous and
3C Versions Flash tested for 1 second 3000
auto-resetting on removal of the short circuit.
Resistance Viso= 1000VDC 10 GO
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
CME0505XC 120
Switching frequency Short circuit types 91 kHz
All other types 135
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 260?C
Input voltage VIN, 3.3V input 5.5V
Input voltage VIN, 5V input 7V
1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
2. See derating curve.
For full details go to
www.murata-ps.com/rohs All speci?cations typical at TA=25?C, nominal input voltage and rated output current unless otherwise speci?ed.
www.murata-ps.com/support
KDC_CME.B02 Page 1 of 11
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current
Input Current
at Rated Load
Load Regulation
Ripple & Noise
Ef?ciency
Isolation
Capacitance
1
MTTFCME Series
Isolated 0.75W Single Output Isolated DC-DC Converters
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Speci?cation All output types -40 85
Storage -50 130
3.3V & 5V output types 41 ?C
Case temperature rise above 12V output types 32
ambient
Short circuit types (DIP) 23
Short circuit types (SIP) 24
Cooling Free air convection
www.murata-ps.com/support
KDC_CME.B02 Page 2 of 11CME Series
Isolated 0.75W Single Output Isolated DC-DC Converters
TECHNICAL NOTES
ISOLATION VOLTAGE
?Hi Pot Test?, ?Flash Tested?, ?Withstand Voltage?, ?Proof Voltage?, ?Dielectric Withstand Voltage? & ?Isolation Test Voltage? are all terms that relate to the same thing, a test voltage,
applied for a speci?ed time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions CME series of DC-DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second for C versions and 3kVDC for 1
second for 3C versions.
A question commonly asked is, ?What is the continuous voltage that can be applied across the part in normal operation??
The CME has been recognised by Underwriters Laboratory for functional insulation, both input and output should normally be maintained within SELV limits i.e. less than 42.4V
peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system.
The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier
must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according
to safety standard requirements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials,
construction and environment. The CME series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enamelled wire. While
parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically
polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We
therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from speci?ed test voltage.
This consideration equally applies to agency recognised parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
SAFETY APPROVAL
The CME series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum ambient temperature of 85?C and/or case temperature
limit of 100?C for CMExxxxxC, 130?C for CMExxxxS3C. Case temperature measured on the face opposite the pins.
The CME series of converters are not internally fused so to meet the requirements of UL 60950 an anti-surge input line fuse should always be used with ratings as de?ned below.
CME03xxS3C: 0.9A
CME05xxxxC: 0.5A
All fuses should be UL recognised and rated to 125V.
File number E151252 applies.
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260?C for 10 seconds. The pin termination ?nish
on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both
types in this series are backward compatible with Sn/Pb soldering systems.
For further information, please visit www.murata-ps.com/rohs
TEMPERATURE DERATING GRAPHS
All other types.
0303, 0305 & Short Circuit types.
85?C
85?C
0.75
0.75
Safe Operating Area
Safe Operating Area
120?C
0
0
-40 100 150
0 50 -40 100 150
0 50
Ambient Temperature (?C)
Ambient Temperature (?C)
www.murata-ps.com/support
KDC_CME.B02 Page 3 of 11
Output Power (W)
Output Power (W)CME Series
www.murata-ps.com
Isolated 0.75W Single Output Isolated DC-DC Converters
SELECTION GUIDE
% mV p-p % MIL. Tel.
V V mA mA pF
Typ. Max. Typ. Max. Min. Typ. kHrs
CME0505DC 5 5 150 218 10 12 15 25 67 70 30 3400
FEATURES
CME0505SC 5 5 150 218 10 12 15 25 67 70 30 3400
CME0512SC 5 12 63 195 5 7 20 30 72 77 33 2200
Short circuit protection options
?
3KVDC isolation options
UL 60950 recognised
?
CME0303S3C 3.3 3.3 227 300 9 12 15 25 66 73 30 1230
CME0305S3C 3.3 5 150 300 9 12 15 25 68 73 35 630
Single Isolated output
?
CME0505S3C 5 5 150 218 9 12 15 25 65 70 28 2400
1kVDC or 3kVDC option ?Hi Pot Test?
?
CME0512S3C 5 12 63 200 5 7 10 15 70 75 30 630
Wide temperature performance at full Short Circuit Protection Options
?
CME0505SPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
0.75W load -40?C to 85?C
?
CME0505DPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
Industry Standard Pinout
?
INPUT CHARACTERISTICS
3.3V and 5V Inputs
?
Parameter Conditions Min. Typ. Max. Units
3.3V, 5V & 12V outputs Continuous operation, 3.3V input types 2.97 3.3 3.63
?
Voltage range V
Continuous operation, 5V input types 4.5 5.0 5.5
Pin Compatible with LME, MEE1, MEE3,
?
Input short circuit current Short circuit variants 95 mA
NKE, NME, & NML series
3.3V input types 1.5 2
Input re?ected ripple
mA p-p
5V input types 2 2.5
current
Short circuit types 3 15
PRODUCT OVERVIEW
OUTPUT CHARACTERISTICS
The CME series are a cost effective 0.75W DC-DC
Parameter Conditions Min. Typ. Max. Units
converter series, in industry standard packages
2
with industry standard pinout, Popular input and
Rated Power TA=-40?C to 85?C, see derating graphs 0.75 W
output voltages are available as a lower power
Voltage Set Point Accuracy See tolerance envelope
alternative to a 1W DC-DC converter. The galvanic
High VIN to low VIN ; Short circuit types 1.15 1.2
Line regulation %/%
isolation allows the device to be con?gured to
High VIN to low VIN ; All other output types 1.0 1.2
provide an isolated negative rail in systems where
only positive rails exist. The wide temperature
ISOLATION CHARACTERISTICS
range guarantees startup from ?40?C and full 0.75
Parameter Conditions Min. Typ. Max. Units
watt output at 85?C. For the short circuit protected
C Versions Flash tested for 1 second 1000
Isolation test voltage VDC
parts (PC) protection is continuous and
3C Versions Flash tested for 1 second 3000
auto-resetting on removal of the short circuit.
Resistance Viso= 1000VDC 10 GO
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
CME0505XC 120
Switching frequency Short circuit types 91 kHz
All other types 135
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 260?C
Input voltage VIN, 3.3V input 5.5V
Input voltage VIN, 5V input 7V
1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
2. See derating curve.
For full details go to
www.murata-ps.com/rohs All speci?cations typical at TA=25?C, nominal input voltage and rated output current unless otherwise speci?ed.
www.murata-ps.com/support
KDC_CME.B02 Page 1 of 11
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current
Input Current
at Rated Load
Load Regulation
Ripple & Noise
Ef?ciency
Isolation
Capacitance
1
MTTFCME Series
www.murata-ps.com
Isolated 0.75W Single Output Isolated DC-DC Converters
SELECTION GUIDE
% mV p-p % MIL. Tel.
V V mA mA pF
Typ. Max. Typ. Max. Min. Typ. kHrs
CME0505DC 5 5 150 218 10 12 15 25 67 70 30 3400
FEATURES
CME0505SC 5 5 150 218 10 12 15 25 67 70 30 3400
CME0512SC 5 12 63 195 5 7 20 30 72 77 33 2200
Short circuit protection options
?
3KVDC isolation options
UL 60950 recognised
?
CME0303S3C 3.3 3.3 227 300 9 12 15 25 66 73 30 1230
CME0305S3C 3.3 5 150 300 9 12 15 25 68 73 35 630
Single Isolated output
?
CME0505S3C 5 5 150 218 9 12 15 25 65 70 28 2400
1kVDC or 3kVDC option ?Hi Pot Test?
?
CME0512S3C 5 12 63 200 5 7 10 15 70 75 30 630
Wide temperature performance at full Short Circuit Protection Options
?
CME0505SPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
0.75W load -40?C to 85?C
?
CME0505DPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
Industry Standard Pinout
?
INPUT CHARACTERISTICS
3.3V and 5V Inputs
?
Parameter Conditions Min. Typ. Max. Units
3.3V, 5V & 12V outputs Continuous operation, 3.3V input types 2.97 3.3 3.63
?
Voltage range V
Continuous operation, 5V input types 4.5 5.0 5.5
Pin Compatible with LME, MEE1, MEE3,
?
Input short circuit current Short circuit variants 95 mA
NKE, NME, & NML series
3.3V input types 1.5 2
Input re?ected ripple
mA p-p
5V input types 2 2.5
current
Short circuit types 3 15
PRODUCT OVERVIEW
OUTPUT CHARACTERISTICS
The CME series are a cost effective 0.75W DC-DC
Parameter Conditions Min. Typ. Max. Units
converter series, in industry standard packages
2
with industry standard pinout, Popular input and
Rated Power TA=-40?C to 85?C, see derating graphs 0.75 W
output voltages are available as a lower power
Voltage Set Point Accuracy See tolerance envelope
alternative to a 1W DC-DC converter. The galvanic
High VIN to low VIN ; Short circuit types 1.15 1.2
Line regulation %/%
isolation allows the device to be con?gured to
High VIN to low VIN ; All other output types 1.0 1.2
provide an isolated negative rail in systems where
only positive rails exist. The wide temperature
ISOLATION CHARACTERISTICS
range guarantees startup from ?40?C and full 0.75
Parameter Conditions Min. Typ. Max. Units
watt output at 85?C. For the short circuit protected
C Versions Flash tested for 1 second 1000
Isolation test voltage VDC
parts (PC) protection is continuous and
3C Versions Flash tested for 1 second 3000
auto-resetting on removal of the short circuit.
Resistance Viso= 1000VDC 10 GO
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
CME0505XC 120
Switching frequency Short circuit types 91 kHz
All other types 135
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 260?C
Input voltage VIN, 3.3V input 5.5V
Input voltage VIN, 5V input 7V
1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
2. See derating curve.
For full details go to
www.murata-ps.com/rohs All speci?cations typical at TA=25?C, nominal input voltage and rated output current unless otherwise speci?ed.
www.murata-ps.com/support
KDC_CME.B02 Page 1 of 11
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current
Input Current
at Rated Load
Load Regulation
Ripple & Noise
Ef?ciency
Isolation
Capacitance
1
MTTFCME Series
Isolated 0.75W Single Output Isolated DC-DC Converters
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Speci?cation All output types -40 85
Storage -50 130
3.3V & 5V output types 41 ?C
Case temperature rise above 12V output types 32
ambient
Short circuit types (DIP) 23
Short circuit types (SIP) 24
Cooling Free air convection
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KDC_CME.B02 Page 2 of 11CME Series
www.murata-ps.com
Isolated 0.75W Single Output Isolated DC-DC Converters
SELECTION GUIDE
% mV p-p % MIL. Tel.
V V mA mA pF
Typ. Max. Typ. Max. Min. Typ. kHrs
CME0505DC 5 5 150 218 10 12 15 25 67 70 30 3400
FEATURES
CME0505SC 5 5 150 218 10 12 15 25 67 70 30 3400
CME0512SC 5 12 63 195 5 7 20 30 72 77 33 2200
Short circuit protection options
?
3KVDC isolation options
UL 60950 recognised
?
CME0303S3C 3.3 3.3 227 300 9 12 15 25 66 73 30 1230
CME0305S3C 3.3 5 150 300 9 12 15 25 68 73 35 630
Single Isolated output
?
CME0505S3C 5 5 150 218 9 12 15 25 65 70 28 2400
1kVDC or 3kVDC option ?Hi Pot Test?
?
CME0512S3C 5 12 63 200 5 7 10 15 70 75 30 630
Wide temperature performance at full Short Circuit Protection Options
?
CME0505SPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
0.75W load -40?C to 85?C
?
CME0505DPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
Industry Standard Pinout
?
INPUT CHARACTERISTICS
3.3V and 5V Inputs
?
Parameter Conditions Min. Typ. Max. Units
3.3V, 5V & 12V outputs Continuous operation, 3.3V input types 2.97 3.3 3.63
?
Voltage range V
Continuous operation, 5V input types 4.5 5.0 5.5
Pin Compatible with LME, MEE1, MEE3,
?
Input short circuit current Short circuit variants 95 mA
NKE, NME, & NML series
3.3V input types 1.5 2
Input re?ected ripple
mA p-p
5V input types 2 2.5
current
Short circuit types 3 15
PRODUCT OVERVIEW
OUTPUT CHARACTERISTICS
The CME series are a cost effective 0.75W DC-DC
Parameter Conditions Min. Typ. Max. Units
converter series, in industry standard packages
2
with industry standard pinout, Popular input and
Rated Power TA=-40?C to 85?C, see derating graphs 0.75 W
output voltages are available as a lower power
Voltage Set Point Accuracy See tolerance envelope
alternative to a 1W DC-DC converter. The galvanic
High VIN to low VIN ; Short circuit types 1.15 1.2
Line regulation %/%
isolation allows the device to be con?gured to
High VIN to low VIN ; All other output types 1.0 1.2
provide an isolated negative rail in systems where
only positive rails exist. The wide temperature
ISOLATION CHARACTERISTICS
range guarantees startup from ?40?C and full 0.75
Parameter Conditions Min. Typ. Max. Units
watt output at 85?C. For the short circuit protected
C Versions Flash tested for 1 second 1000
Isolation test voltage VDC
parts (PC) protection is continuous and
3C Versions Flash tested for 1 second 3000
auto-resetting on removal of the short circuit.
Resistance Viso= 1000VDC 10 GO
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
CME0505XC 120
Switching frequency Short circuit types 91 kHz
All other types 135
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 260?C
Input voltage VIN, 3.3V input 5.5V
Input voltage VIN, 5V input 7V
1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
2. See derating curve.
For full details go to
www.murata-ps.com/rohs All speci?cations typical at TA=25?C, nominal input voltage and rated output current unless otherwise speci?ed.
www.murata-ps.com/support
KDC_CME.B02 Page 1 of 11
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current
Input Current
at Rated Load
Load Regulation
Ripple & Noise
Ef?ciency
Isolation
Capacitance
1
MTTFCME Series
www.murata-ps.com
Isolated 0.75W Single Output Isolated DC-DC Converters
SELECTION GUIDE
% mV p-p % MIL. Tel.
V V mA mA pF
Typ. Max. Typ. Max. Min. Typ. kHrs
CME0505DC 5 5 150 218 10 12 15 25 67 70 30 3400
FEATURES
CME0505SC 5 5 150 218 10 12 15 25 67 70 30 3400
CME0512SC 5 12 63 195 5 7 20 30 72 77 33 2200
Short circuit protection options
?
3KVDC isolation options
UL 60950 recognised
?
CME0303S3C 3.3 3.3 227 300 9 12 15 25 66 73 30 1230
CME0305S3C 3.3 5 150 300 9 12 15 25 68 73 35 630
Single Isolated output
?
CME0505S3C 5 5 150 218 9 12 15 25 65 70 28 2400
1kVDC or 3kVDC option ?Hi Pot Test?
?
CME0512S3C 5 12 63 200 5 7 10 15 70 75 30 630
Wide temperature performance at full Short Circuit Protection Options
?
CME0505SPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
0.75W load -40?C to 85?C
?
CME0505DPC 5 5 150 195 7.5 9 11 25 74 76.5 22 2887 47047
Industry Standard Pinout
?
INPUT CHARACTERISTICS
3.3V and 5V Inputs
?
Parameter Conditions Min. Typ. Max. Units
3.3V, 5V & 12V outputs Continuous operation, 3.3V input types 2.97 3.3 3.63
?
Voltage range V
Continuous operation, 5V input types 4.5 5.0 5.5
Pin Compatible with LME, MEE1, MEE3,
?
Input short circuit current Short circuit variants 95 mA
NKE, NME, & NML series
3.3V input types 1.5 2
Input re?ected ripple
mA p-p
5V input types 2 2.5
current
Short circuit types 3 15
PRODUCT OVERVIEW
OUTPUT CHARACTERISTICS
The CME series are a cost effective 0.75W DC-DC
Parameter Conditions Min. Typ. Max. Units
converter series, in industry standard packages
2
with industry standard pinout, Popular input and
Rated Power TA=-40?C to 85?C, see derating graphs 0.75 W
output voltages are available as a lower power
Voltage Set Point Accuracy See tolerance envelope
alternative to a 1W DC-DC converter. The galvanic
High VIN to low VIN ; Short circuit types 1.15 1.2
Line regulation %/%
isolation allows the device to be con?gured to
High VIN to low VIN ; All other output types 1.0 1.2
provide an isolated negative rail in systems where
only positive rails exist. The wide temperature
ISOLATION CHARACTERISTICS
range guarantees startup from ?40?C and full 0.75
Parameter Conditions Min. Typ. Max. Units
watt output at 85?C. For the short circuit protected
C Versions Flash tested for 1 second 1000
Isolation test voltage VDC
parts (PC) protection is continuous and
3C Versions Flash tested for 1 second 3000
auto-resetting on removal of the short circuit.
Resistance Viso= 1000VDC 10 GO
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
CME0505XC 120
Switching frequency Short circuit types 91 kHz
All other types 135
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 260?C
Input voltage VIN, 3.3V input 5.5V
Input voltage VIN, 5V input 7V
1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
2. See derating curve.
For full details go to
www.murata-ps.com/rohs All speci?cations typical at TA=25?C, nominal input voltage and rated output current unless otherwise speci?ed.
www.murata-ps.com/support
KDC_CME.B02 Page 1 of 11
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current
Input Current
at Rated Load
Load Regulation
Ripple & Noise
Ef?ciency
Isolation
Capacitance
1
MTTFCME Series
Isolated 0.75W Single Output Isolated DC-DC Converters
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Speci?cation All output types -40 85
Storage -50 130
3.3V & 5V output types 41 ?C
Case temperature rise above 12V output types 32
ambient
Short circuit types (DIP) 23
Short circuit types (SIP) 24
Cooling Free air convection
www.murata-ps.com/support
KDC_CME.B02 Page 2 of 11CME Series
Isolated 0.75W Single Output Isolated DC-DC Converters
TECHNICAL NOTES
ISOLATION VOLTAGE
?Hi Pot Test?, ?Flash Tested?, ?Withstand Voltage?, ?Proof Voltage?, ?Dielectric Withstand Voltage? & ?Isolation Test Voltage? are all terms that relate to the same thing, a test voltage,
applied for a speci?ed time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions CME series of DC-DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second for C versions and 3kVDC for 1
second for 3C versions.
A question commonly asked is, ?What is the continuous voltage that can be applied across the part in normal operation??
The CME has been recognised by Underwriters Laboratory for functional insulation, both input and output should normally be maintained within SELV limits i.e. less than 42.4V
peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system.
The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier
must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according
to safety standard requirements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials,
construction and environment. The CME series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enamelled wire. While
parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically
polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We
therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from speci?ed test voltage.
This consideration equally applies to agency recognised parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
SAFETY APPROVAL
The CME series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum ambient temperature of 85?C and/or case temperature
limit of 100?C for CMExxxxxC, 130?C for CMExxxxS3C. Case temperature measured on the face opposite the pins.
The CME series of converters are not internally fused so to meet the requirements of UL 60950 an anti-surge input line fuse should always be used with ratings as de?ned below.
CME03xxS3C: 0.9A
CME05xxxxC: 0.5A
All fuses should be UL recognised and rated to 125V.
File number E151252 applies.
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260?C for 10 seconds. The pin termination ?nish
on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both
types in this series are backward compatible with Sn/Pb soldering systems.
For further information, please visit www.murata-ps.com/rohs
TEMPERATURE DERATING GRAPHS
All other types.
0303, 0305 & Short Circuit types.
85?C
85?C
0.75
0.75
Safe Operating Area
Safe Operating Area
120?C
0
0
-40 100 150
0 50 -40 100 150
0 50
Ambient Temperature (?C)
Ambient Temperature (?C)
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KDC_CME.B02 Page 3 of 11
Output Power (W)
Output Power (W)