MEE1 Series
Isolated 1W Single Output DC/DC Converters
KDC_MEE1.C03 Page 4 of 13
www.murata-ps.com/support
EFFICIENCY VS LOAD
3.3V Input 5V Input
12V Input 15V Input
24V Input
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 finish 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
90
10080604020
70
50
30
10
0
Load (%)
Efficiency (%)
90
10080604020
70
50
30
10
0
Load (%)
Efficiency (%)
90
10080604020
70
50
30
10
0
Load (%)
Efficiency (%)
90
10080604020
70
50
30
10
0
Load (%)
Efficiency (%)
90
10080604020
70
50
30
10
0
Load (%)
Efficiency (%)
MEE1S0503SC
MEE1S0505SC
MEE1S0509SC
MEE1S0512SC
MEE1S0515SC
MEE1S1505SC
MEE1S1509SC
MEE1S1512SC
MEE1S1515SC
MEE1S0303SC
MEE1S0305SC
MEE1S0309SC
MEE1S0312SC
MEE1S0315SC
MEE1S1205SC
MEE1S1209SC
MEE1S1212SC
MEE1S1215SC
MEE1S2405SC
MEE1S2409SC
MEE1S2412SC
MEE1S2415SC
MEE1 Series
Isolated 1W Single Output DC/DC Converters
KDC_MEE1.C03 Page 5 of 13
www.murata-ps.com/support
APPLICATION NOTES
Minimum Load
The minimum load to meet datasheet specification is 10% of the full rated load across the specified input voltage range. Lower than 10% minimum loading will result in
an increase in output voltage, which may rise to typically 1.25 times the specified output voltage if the output load falls to less than 5%.
Capacitive loading and start up
Typical start up times for this series, with a typical input voltage rise time of 2.2µs and output capacitance of 10µF, are shown in the table below. The product
series will start into a capacitance of 47µF with an increased start time, however, the maximum recommended output capacitance is 10µF.
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test configuration.
C1 1µF X7R m ultilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter
C2
10µF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less
than 100m at 100 kHz
C3 100nF multilayer ceramic capacitor, general purpose
R1 450 resistor, carbon film, ±1% tolerance
R2 50 BNC termination
T1 3T of the coax cable through a ferrite toroid
RLOAD Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires
Measured values are multiplied by 10 to obtain the specified values.
Differential Mode Noise Test Schematic
OSCILLOSCOPE
Y INPUT
SUPPLY
C1 C2 C3 R1 T1
R2
Input Output
DC/DC Converter
R LOAD
+
+
-
-
Start-up time Start-up time
µs µs
MEE1S0303XC 355 MEE1S1209XC 818
MEE1S0305XC 622 MEE1S1212XC 1285
MEE1S0309XC 1542 MEE1S1215XC 2052
MEE1S0312XC 2410 MEE1S1505XC 260
MEE1S0315XC 3346 MEE1S1509XC 642
MEE1S0503XC 334 MEE1S1512XC 993
MEE1S0505XC 402 MEE1S1515XC 1574
MEE1S0509XC 1316 MEE1S2405XC 221
MEE1S0512XC 1776 MEE1S2409XC 541
MEE1S0515XC 2232 MEE1S2412XC 860
MEE1S1205XC 285 MEE1S2415XC 1049
MEE1 Series
Isolated 1W Single Output DC/DC Converters
KDC_MEE1.C03 Page 6 of 13
www.murata-ps.com/support
APPLICATION NOTES (continued)
Output Ripple Reduction
By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max.
Component selection
Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended.
The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter.
Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor
should be such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be
>20MHz.
DC
DC
L
C
Load
Power
Source
Inductor Capacitor
L, µH SMD Through Hole C, µF
MEE1S0303XC 4.7 82472C 11R472C 10
MEE1S0305XC 10 82103C 11R103C 4.7
MEE1S0309XC 22 82223C 11R223C 2.2
MEE1S0312XC 47 82473C 11R473C 1
MEE1S0315XC 47 82473C 11R473C 1
MEE1S0503XC 4.7 82472C 11R472C 10
MEE1S0505XC 10 82103C 11R103C 4.7
MEE1S0509XC 22 82223C 11R223C 2.2
MEE1S0512XC 47 82473C 11R473C 1
MEE1S0515XC 47 82473C 11R473C 1
MEE1S1205XC 10 82103C 11R103C 4.7
MEE1S1209XC 22 82223C 11R223C 2.2
MEE1S1212XC 47 82473C 11R473C 1
MEE1S1215XC 47 82473C 11R473C 1
MEE1S1505XC 10 82103C 11R103C 4.7
MEE1S1509XC 22 82223C 11R223C 2.2
MEE1S1512XC 47 82473C 11R473C 1
MEE1S1515XC 47 82473C 11R473C 1
MEE1S2405XC 10 82103C 11R103C 4.7
MEE1S2409XC 22 82223C 11R223C 2.2
MEE1S2412XC 47 82473C 11R473C 1
MEE1S2415XC 47 82473C 11R473C 1

MEE1S0315SC

Mfr. #:
Manufacturer:
Murata Power Solutions
Description:
Isolated DC/DC Converters 1W 3.3Vin 15Vout 67mA SIP
Lifecycle:
New from this manufacturer.
Delivery:
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