LXDC3EP33F-204 데이터 시트보기 (PDF) - Murata Manufacturing
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LXDC3EP33F-204 Datasheet PDF : 25 Pages
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LXDC3EP TypeF series
Micro DC-DC converter
Enable Voltage
Vin=5.0V
Io=300mA
LXDC3EP33F-204
ENon ON; Enable
1.2
ENoff OFF; Disable
-
MODE-H High; Forced PWM mode
1.2
MODE Voltage
MODE-L Low; Power-Save mode
-
Parameter
SW Frequency
Symbol
Freq
Condition
Min.
-
Over Current
Protection
Start -up Time
OCP
Ton
1000
-
(*1)The above characteristics are tested using the application circuit on section 8
94
-
-
-
-
0.4
-
-
-
0.4
Typ. Max.
4
-
1200 1700
170 -
V
V
Unit
MHz
mA
usec
6-3 Thermal and Current De-rating Information
The following figure shows the power dissipation and temperature rise characteristics example. These data are
measured on Murata’s evaluation board of this device at no air-flow condition.
LOSS-ΔT Characteristics(Vin=5.5V,Vo=1.2V)
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
Iout[mA]
LOSS-ΔT Characteristics(Vin=5.5V,Vo=1.2V)
30
25
20
15
10
5
0
Power Dissipation[mW]
The output current of the device may need to be de-rated if it is operated in a high ambient temperature or in a
continuous power delivering application. The amount of current de-rating is highly dependent on the
environmental thermal conditions, i.e. PCB design, nearby components or effective air flows. Care should
especially be taken in applications where the device temperature exceeds 85oC.
The case temperature of the device must be kept lower than the maximum rating of 125 oC. It is generally
recommended to take an appropriate de-rating to IC temperature for a reliable operation. A general de-rating for
the temperature of semiconductor is 80%.
5
February 2016
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