Datasheet

LXDC3EP series
Micro DC-DC converter
7
Dec 2014
The following steps should be taken before the designing for reliable operation.
1. The ambient temperature of the device should be kept below 85
o
C
2. The case temperature should be measured on the worst condition of each application. The temperature must
be kept below 125
o
C. 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.
0.1
1
10
100
1000
10000
100000
20 40 60 80 100 120
Capacitor B1 Life (Tousand Hours)
Capacitor Case Temprature (oC )
Capacitor B1 Life vs Capacitor Case temperature
Vin=5V
Vin=3.6V
Vin=3.3V
Vin=2.5V