www.murata-ps.com
FEATURES
DESCRIPTION
The NDY series is a range of low profi le DC/DC
converters offering a single regulated output over a
2:1 input voltage range. All parts deliver 3W output
power up to 85ºC without heatsinking, except the
4.5V to 9V input voltage range which should be
derated to 2W at the lower input voltage. A fl yback
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.
www.murata-ps.com
RoHS compliant
Industry standard footprint
Effi ciency to 82%
Power density 0.90W/cm
2:1 wide input range
Single isolated output
Short circuit protection
Low profi le 24 pin case
UL 94V-0 package material
Operating temperature range -40ºC to 85ºC
No heatsink required
Footprint 4.73cm
5V, 12V, 24V & 48V input
3.3V, 5V, 9V, 12V & 15V output
Internal SMD construction
Fully encapsulated
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For full details go to
2
3
1. Refer to power derating graph.
2. Measured at full load with external input/output capacitors, refer to fi lter circuit 1.
3. Calculated using MIL-HDBK-217F with nominal input voltage at full load (ground benign) at 25°C.
SELECTION GUIDE
Order Code
NDY0505C
NDY0509C
NDY0512C
NDY0515C
NDY1205C
NDY1209C
NDY1212C
NDY1215C
NDY2403C
NDY2405C
NDY2409C
NDY2412C
NDY2415C
NDY4803C
NDY4805C
NDY4809C
NDY4812C
NDY4815C
INPUT CHARACTERISTICS
Parameter
Voltage range
Refl ected ripple current
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
Lead temperature 1.5mm from case for 10 seconds
Minimum load
Input voltage 05 types
Input voltage 12 types
Input voltage 24 types
Input voltage 48 types
Internal dissipation
All specifi cations typical at T
Nominal
V (nom.)
Voltage
Input
12
12
12
12
24
24
24
24
24
48
48
48
48
48
5
5
5
5
2
A
=25°C, nominal input voltage and rated output current unless otherwise specifi ed.
Conditions
All NDY05XX
All NDY12XX
All NDY24XX
All NDY48XX
NDY2403
NDY4803
All NDY05XX
All NDY12XX
All other NDY24XX
All other NDY48XX
Voltage
Output
Rated
3.3
3.3
12
15
12
15
12
15
12
15
V
5
9
5
9
5
9
5
9
Min. Load
100-150
55-83
42-62
33-50
150
227
150
227
150
mA
Output Current
83
62
50
83
62
50
83
62
50
Technical enquiries - email: mk@murata-ps.com, tel:
Isolated 3W Wide Input DC/DC Converters
Full Load
400-600
222-333
166-250
133-200
600
333
250
200
909
600
333
250
200
909
600
333
250
200
mA
1
Full load
Current
Input
615
563
548
533
362
320
316
308
178
174
156
154
150
mA
87
87
78
77
76
Continuous
300°C
25% of rated load
10V
20V
40V
80V
1.7W
Min.
4.5
18
36
9
Effi ciency
(Min.)
NDY Series
66
72
71
73
71
78
78
79
70
70
78
80
82
71
73
80
81
81
%
KDC_NDYC.E04 Page 1 of 4
Typ.
180
140
400
150
290
100
12
24
48
5
2
Capacitance
Isolation
+44 (0)1908 615232
Max.
360
290
500
170
360
127
pF
40
52
43
44
36
52
44
47
30
36
52
44
54
30
35
52
44
53
18
36
72
9
mA p-p
Units
MTTF
VDC
1939
1926
1907
1924
1928
1916
1897
1914
1671
1673
1663
1644
1657
1676
1668
1663
1648
1661
kHrs
3