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B-XT Datasheet, PDF (1/6 Pages) Microdc power Technology Co., Ltd – 1W, FIXED INPUT, ISOLATED SINGLE OUTPUT SMD DC-DC CONVERTER
B-XT Series
1W, FIXED INPUT, ISOLATED SINGLE OUTPUT SMD DC-DC CONVERTER
FEATURES
◆Footprint over pins 1.37cm2
◆Short Circuit Protection(automatic recovery)
◆I/O isolation voltage 1000VDC
◆Operating Temperature: -40℃~﹢85℃
◆High efficiency up to 78%
◆Toroidal magnetics
◆Small SMD package with footprint
◆Power density 1.8W/cm3
◆Lead frame technology
◆Multi-layer ceramic capacitors
◆Custom solutions available
MODEL SELECTION
B①05②05③X④ T⑤
①Product Series
③Output Voltage
⑤SMD Package
②Input Voltage
④Fixed Input
APPLICATIONS
The B-XT series are miniature,1W DC/DC
converters with high isolation in a SMD package.
With a new package design these converters are
qualified for the higher temperatures requested
by lead-free reflow solder processes. With the
small footprint, these converters are the ideal
solution for board level power distribution,mainly
for applications in the industrial and telecom field.
For automated SMD production lines the devices
can be supplied in standard tape and reel
package.
SELECTION GUIDE
Order code
Input
Voltage(VDC) Current (mA)
Nominal
Rated Load
Output
Voltage Current
(VDC)
(mA)
Efficiency
(%.Typ.)
Isolation
Capacitance
pF
MTTF1
KHrs
B0303XT
3.3
410
3.3
303
81
29
5348
B0305XT
3.3
390
5
200
83
30
3847
B0309XT
3.3
400
9
111
74
34
3134
B0312XT
3.3
400
12
83
76
40
3473
B0315XT
3.3
400
15
66
81
42
2473
B0503XT
5
270
3.3
303
85
31
5515
B0505XT
5
294
5
200
83
33
6857
B0505NXT
5
260
5
200
86
42
3933
B0506XT
5
278
6
167
83
43
6677
B0509XT
5
267
9
111
85
38
5501
B0512XT
5
260
12
83
74
44
3957
B0515XT
5
256
15
66
78
43
2747
B1205XT
12
124
5
200
80
50
4683
B1209XT
12
114
9
111
80
72
4008
B1212XT
12
113
12
83
85
89
3121
B1215XT
12
111
15
66
81
100
2316
1. Calculated using MIL-HDBK-217FN2 with nominal input voltage at full load.
All specifications typical at TA=25℃, nominal input voltage and rated output current unless otherwise specified.
Input Characteristics
Parameter
Conditions
Voltage range
Start up time
Continuous operation, 3.3V input
Continuous operation, 5V input
Continuous operation, 12V input
Min.
2.97
4.5
10.8
Typ.
3.3
5
12
30
Max.
3.63
5.5
13.2
47
Units
VDC
VDC
VDC
mA p-p
Isolation Characteristics
Parameter
Conditions
Isolation voltage
Resistance
Flash tested for 1 second
Viso= 1000VDC
Min.
1000
10
Typ.
Max.
Units
VDC
GΩ
General Characteristics
Parameter
Conditions
Switching frequency
All output types
Min.
Typ.
110
Max.
Units
kHz
Absolute Maximum Ratings
Parameter
Conditions
MICRODC R ESERVES THE COPYRIGHT
Lead temperature 1.5mm from case for 10 seconds
300℃
Internal power dissipation
600mW
Input voltage V , B03 types
5.5V
Input voltage Vin, B05 types
7V
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