MEA1D0505SC Datasheet, PDF (5/8 Pages) Murata Manufacturing Co., Ltd. – 1kVDC Isolated 1W Dual Output DC/DC Converters

MEA1 Series
1kVDC Isolated 1W Dual Output DC/DC Converters
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.
L
Power
Source
DC
DC
C
Load
L, μH
MEA1D0505xC
10
MEA1D0509xC
22
MEA1D0512xC
47
MEA1D0515xC
47
MEA1D1205xC
10
MEA1D1209xC
22
MEA1D1212xC
47
MEA1D1215xC
47
MEA1D1505xC
10
MEA1D1509xC
22
MEA1D1512xC
47
MEA1D1515xC
47
MEA1D2405xC
10
MEA1D2409xC
22
MEA1D2412xC
47
MEA1D2415xC
47
MEA1D4805xC
10
MEA1D4809xC
22
MEA1D4812xC
47
MEA1D4815xC
47
Inductor
SMD
82103C
82223C
82473C
82473C
82103C
82223C
82473C
82473C
82103C
82223C
82473C
82473C
82103C
82223C
82473C
82473C
82103C
82223C
82473C
82473C
Through Hole
11R103C
11R223C
11R473C
11R473C
11R103C
11R223C
11R473C
11R473C
11R103C
11R223C
11R473C
11R473C
11R103C
11R223C
11R473C
11R473C
11R103C
11R223C
11R473C
11R473C
Capacitor
C, μF
4.7
2.2
1
1
4.7
2.2
1
1
4.7
2.2
1
1
4.7
2.2
1
1
4.7
2.2
1
1
RoHS COMPLIANT 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
www.murata-ps.com
Technical enquiries email: [e-mail], tel: [phone]
2010-07-08 KDC_MEA1.C03 Page 5 of 8