B-XT-1W
Series
1W, FIXED INPUT, ISOLATED SINGLE OUTPUT SMD DC-DC CONVERTER
DC-
SELECTION GUIDE
Input
Order code
Voltage(VDC)
Nominal
Output
Voltage
(VDC)
Efficiency
Isolation
MTTF
1
Capacitance
Current (mA)
Rated Load
Current
(%.Typ.)
(mA)
pF
KHrs
FEATURES
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
B0303XT-1W
B0305XT-1W
B0309XT-1W
3.3
3.3
3.3
3.3
3.3
5
5
5
5
5
5
5
12
12
12
12
410
390
400
400
400
270
294
260
278
267
260
256
124
114
113
111
3.3
5
9
12
15
3.3
5
5
6
9
12
15
5
9
12
15
303
200
111
83
66
303
200
200
167
111
83
66
200
111
83
66
81
83
74
76
81
85
83
86
83
85
74
78
80
80
85
81
29
30
34
40
42
31
33
42
43
38
44
43
50
72
89
100
5348
3847
3134
3473
2473
5515
6857
3933
6677
5501
3957
2747
4683
4008
3121
2316
Footprint over pins 1.37cm
2
Short Circuit Protection(automatic recovery)
I/O isolation voltage 1000VDC
Operating Temperature: -40℃�½�﹢85℃
B0312XT-1W
B0315XT-1W
B0503XT-1W
B0505XT-1W
High efficiency up to 78%
Toroidal magnetics
Small SMD package with footprint
Power density 1.8W/cm
3
Lead frame technology
Multi-layer ceramic capacitors
Custom solutions available
B0505NXT-1W
B0506XT-1W
B0509XT-1W
B0512XT-1W
B0515XT-1W
B1205XT-1W
B1209XT-1W
B1212XT-1W
B1215XT-1W
MODEL SELECTION
B
①
05
②
05
③
X
④
T
⑤
-1W
⑥
①Product
Series
③Output
Voltage
⑤SMD
Package
②Input
Voltage
④Fixed
Input
⑥Rated
Power
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
Continuous operation, 3.3V 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
Voltage range
Continuous operation, 5V input
Continuous operation, 12V input
APPLICATIONS
The B-XT-1W 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.
Start up time
Isolation Characteristics
Parameter
Isolation voltage
Resistance
Conditions
Flash tested for 1 second
Viso= 1000VDC
Min.
1000
10
Typ.
Max.
Units
VDC
GΩ
General Characteristics
Parameter
Switching frequency
Conditions
All output types
Min.
Typ.
110
Max.
Units
kHz
Absolute Maximum Ratings
Parameter
MICRODC RESERVES THE COPYRIGHT
Conditions
300℃
600mW
5.5V
7V
15V
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
Input voltage V , B03 types
Input voltage Vin, B05 types
Input voltage Vin, B12 types
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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