LXDC2HN23A-324(2014) Ver la hoja de datos (PDF) - Murata Manufacturing
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LXDC2HN23A-324 Datasheet PDF : 31 Pages
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LXDC2HN typeA series
Micro DC-DC converter
Capacitor B1 Life vs Capacitor Case temperature
100000
Hours) 10000
(Tousand
Life
1000
100
CapacitorB1
10
1
Vin=5V
Vin=3.6V
Vin=3.3V
Vin=2.5V
0.1
20
40
60
80
100
120
Capacitor Case Temprature (oC )
The following steps should be taken before the design fix of user’s set for a reliable operation.
1. The ambient temperature of the device should be kept below 85 oC
2. The case temperature should be measured on the worst condition of each application. The temperature must
be kept below 125 oC. An appropriate de-rating of temperature and/or output current should be taken.
3. The MLCC temperature should be considered as same as the case temperature. Considering the above
figure, it should be checked if the expected B1 life of MLCC is acceptable or not.
8
Dec 2014
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