WRB-YDK-3W Series
3W,Wide Input,ISOLATED®ULATED SINGLE OUTPUT DC/DC Converters
Models
Output Current1
2
Nominal
Input
Rated
Output
Voltage
Input
Effcienc
Isolation
3
MTTF
Current
Full load
Order Code
(Min.)
Capacitance
Voltage
Min.Load
Full Load
V (nom.)
5
V
5
mA
100-150
55-83
42-62
33-50
150
83
mA
400-600
222-333
166-250
133-200
600
mA
615
563
548
533
362
320
316
308
178
174
156
154
150
87
%
66
72
71
73
71
78
78
79
70
70
78
80
82
71
73
80
81
81
pF
40
52
43
44
36
52
44
47
30
36
52
44
54
30
35
52
44
53
kHrs
1939
1926
1907
1924
1928
1916
1897
1914
1671
1673
1663
1644
1657
1676
1668
1663
1648
1661
WRB0505YDK-3W
WRB0509YDK-3W
WRB0512YDK-3W
WRB0515YDK-3W
WRB1205YDK-3W
WRB1209YDK-3W
WRB1212YDK-3W
WRB1215YDK-3W
WRB2403YDK-3W
WRB2405YDK-3W
WRB2409YDK-3W
WRB2412YDK-3W
WRB2415YDK-3W
WRB4803YDK-3W
WRB4805YDK-3W
WRB4809YDK-3W
WRB4812YDK-3W
WRB4815YDK-3W
FEATURES
◆RoHS compliant
5
9
5
12
15
5
◆Industry standard footprint
◆Effciency to 82%
5
12
12
12
12
24
24
24
24
24
48
48
48
48
48
9
333
◆Power density 0.90W/cm3
◆2:1 wide input range
◆Single isolated output
◆Short circuit protection
◆Low profile 24 pin case
12
15
3.3
5
62
250
50
200
227
150
83
909
600
9
333
12
15
3.3
5
62
250
50
200
◆UL 94V-0 package material
◆Operating temperature range -40℃ to 85℃
◆No heatsink required
227
150
83
909
600
87
9
333
78
12
15
62
250
77
◆Footprint 4.73cm2
50
200
76
◆5V, 12V, 24V & 48V input
◆3.3V, 5V, 9V, 12V & 15V output
◆Internal SMD construction
◆Fully encapsulated
ge can’t exceed this value,or will cause the permanent damage.
INPUT CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
Units
All WRB05XX
All WRB12XX
All WRB24XX
All WRB48XX
WRB2403
4.5
9
5
9
VDC
VDC
MODEL SELECTION
WRB 12 05 Y D K -3W(600)
12
18
Voltage range
①
②
③
④
⑤
⑥
⑦
18
36
24
36
VDC
48
72
VDC
①Product Series
③Output Voltage
②Input Voltage
④2:1Wide Input Range
180
140
400
150
290
100
360
290
500
170
360
127
mA p-p
mA p-p
mA p-p
mA p-p
mA p-p
mA p-p
⑤DIP24 Package Style ⑥Footprint Rank Shape
⑦Rated Power(Output current)
WRB4803
Reflected ripple
current2
All WRB05XX
All WRB12XX
All other WRB24XX
All other WRB48XX
APPLICATIONS
The WRB-YDK-3W series is a range of low profile DC/DC
converters offering a single regulated output over a 2:1 input
voltage range. All parts deliver 3W output power up to 85℃
without heatsinking, except the 4.5V to 9V input voltage
range which should be derated to 2W at the lower input
voltage. A flyback oscillator design with isolated feedback is
used to give regulation over the full operating range of 25%
to 100% of full load. It is strongly recommended that external
capacitors be used on input and output to guarantee
performance over full load and input voltage range.
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
Continuous
300°C
Lead temperature 1.5mm from case for 10 seconds
Minimum load
25% of rated load
Input voltage 05 types
10V
20V
40V
80V
1.7W
Input voltage 12 types
Input voltage 24 types
Input voltage 48 types
Internal dissipation
1.Refer to power derating graph.
2.Measured at full load with external input/output capacitors, refer to filter circuit 1.
3.Calculated using MIL-HDBK-217F with nominal input voltage at full load (ground benign) at 25°C.
MICRODC reserves the copyright
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise
specified
http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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