NMA2405SC Datasheet, PDF (1/4 Pages) Murata Manufacturing Co., Ltd. – Isolated 1W Dual Output DC/DC Converters

www.murata-ps.com ^{NOT RECOMMENDED} NMA 24V & 48V Series
FOR NEW ^{DESIGNS Isolated 1W Dual Output DC/DC Converters}
FEATURES
RoHS compliant
Efficiency up to 80%
Power density up to 0.85W/cm³
Dual output from a single input rail
UL 94V-0 package material
No heatsink required
Footprint from 1.17cm²
Industry standard pinout
Power sharing on output
1kVDC isolation
24V & 48V input
5V, 9V, 12V and 15V output
Internal SMD construction
Fully encapsulated with toroidal
magnetics
No external components required
DESCRIPTION
The NMA series of DC/DC converters are the
standard buliding blocks for on-board distrib-
uted power systems. They are ideally suited for
providing dual rail supplies on primarily digital
boards with the added benefit of galvanic isolation
to reduce switching noise. All of the rated power
may be drawn from a single pin provided the total
load does not exceed 1 watt.
Ḥ
For full details go to
www.murata-ps.com/rohs
SELECTION GUIDE
Order Code
Nominal
Input
Voltage
V
Output
Voltage
V
Output
Current
mA
Efficiency
Isolation
Capacitance
MTTF¹
Package
Style
%
pF kHrs
Recommended
Alternatives
(click for
data sheet)
Not recommended for new designs:
NMA2405SC 24
±5
±100
70
39
194
MEA1D2405SC
NMA2409SC 24
±9
±55
77
NMA2412SC 24
±12
±42
80
85
129
MEA1D2409SC
SIP
65
134
MEA1D2412SC
NMA2415SC 24
±15
±33
80
95
101
MEA1D2415SC
Obsolete:
NMA2405DC 24
±5
±100
70
39
194
MEA1D2405DC
NMA2409DC 24
±9
±55
77
85
129
MEA1D2409DC
NMA2412DC 24
±12
±42
80
65
134
MEA1D2412DC
NMA2415DC 24
NMA4805DC 48
±15
±33
80
±5
±100
70
95
101 DIP MEA1D2415DC
26
206
MEA1D4805DC
NMA4809DC 48
±9
±55
80
38
174
MEA1D4809DC
NMA4812DC 48
±12
±42
80
52
139
MEA1D4812DC
NMA4815DC 48
±15
±33
80
56
104
MEA1D4815DC
NMA4805SC 48
±5
±100
70
26
206
MEA1D4805SC
NMA4809SC 48
±9
±55
80
NMA4812SC 48
±12
±42
80
38
174
MEA1D4809SC
SIP
52
139
MEA1D4812SC
NMA4815SC 48
±15
±33
80
56
104
MEA1D4815SC
When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external
capacitance value for guaranteed start up. The slower the rise time of the input voltage the greater the maximum value of the
additional external capacitance for reliable start up.
INPUT CHARACTERISTICS
Parameter
Conditions
Voltage range
Continuous operation, 24V input types
Continuous operation, 48V input types
Min. Typ. Max. Units
21.6 24 26.4
V
43.2 48 52.8
OUTPUT CHARACTERISTICS
Parameter
Conditions
Min. Typ. Max. Units
Rated Power²
TA=0°C to 70°C
1
W
Voltage Set Point Accuracy See tolerance envelope
Line regulation
High VIN to low VIN
1.2 %/%
Load Regulation
10% load to rated load, 5V output types
10% load to rated load, all other output types
15
%
10
Ripple and Noise
BW=DC to 20MHz, all input types
150 mV p-p
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection³
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
Input voltage VIN, NMA24 types
Input voltage VIN, NMA48 types
1 second
300°C
450mW
28V
54V
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2. See derating graph.
3. Supply voltage must be discontinued at the end of the short circuit duration.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
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All enquiries: www.murata-ps.com/support
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