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SELECTION GUIDE
NMT Series
Triple Output 3W DC/DC Converters
Nominal
Nominal
Output Current 1
Output Current 2
Order Code
Input
Voltage
Output
Output
Voltage
Min. Load Full Load Min. Load Full Load
MTTF 3
V
-V OUT1
V
-24
mA
1.4
mA
42
mA
4.2
mA
126
kHrs
NMT0572SC
5
-V OUT2
-48
0.7
21
2.1
63
145
-V OUT3
-V OUT1
-72
-24
0.5
1.4
14
42
1.4
4.2
42
126
NMT1272SC
12
-V OUT2
-48
0.7
21
2.1
63
145
-V OUT3
-72
0.5
14
1.4
42
FEATURES
RoHS compliant
Triple outputs (-24V, -48V & -72V)
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
Input/output isolation 1kVDC
Power sharing on outputs
Industrial temperature range
UL 94V-0 package material
Internal SMD construction
Parameter
Voltage range
Ripple current (I RIPPLE )
Zero load input current
(I CCZL )
Conditions
NMT0572SC
NMT1272SC
NMT0572SC
NMT1272SC
NMT0572SC, 0% output load
NMT1272SC, 0% output load
Min.
4.5
10.8
Typ.
5.0
12
85
66
50
27.5
Max.
5.5
13.2
80
50
Units
V
mA
mA
Toroidal magnetics
No external components required
OUTPUT CHARACTERISTICS
Parameter Conditions
Min.
Typ.
Max.
Units
Power density 1.65W/cm 3
DESCRIPTION
The NMT series is a range of DC/DC convert-
ers offering three output voltages of -24V, -48V
and -72V from a single isolated 5V or 12V input
voltage. The product is designed for use with
telecommunications circuits requiring an on board
supply for the -72V RING-TIP connection service
generated from a nominal 5V or 12V DC input
supply rail. The device also offers battery level
voltages of -24V and -48V for access control and
Total Rated Power (P OUT )
Single Channel Voltage Set
Point Accuracy
Output Voltage - V OUT 1
Output Voltage - V OUT 2
Output Voltage - V OUT 3
Line regulation
Load regulation
Ripple & Noise
Total of all outputs or any single output
P OUT = 100mW
P OUT = 3W
P OUT = 100mW
P OUT = 3W
P OUT = 100mW
P OUT = 3W
P OUT = 100mW
P OUT = 3W
V IN = 90% to 110% of nominal
P OUT = 100mW to 3W
DC to 20MHz single channel (24V)
0.1
0
-7.5
24
22.2
48
44.4
72
66.6
1.01
8
220
3.0
10
2.5
26.4
24.6
52.8
49.2
79.2
73.8
1.2
15
400
W
%
V
%
mV
data pump IC’s. The product is packaged in an
8 pin SIP case for minimum PCB footprint. The
ISOLATION CHARACTERISTICS
rated power may be shared or drawn from any
Parameter
Conditions
Min.
Typ.
Max.
Units
one output providing the total output load does not
exceed 3W.
Isolation test voltage
Isolation Capacitance
Flash tested for 1 second
NMT0572SC, 1MHz, 1V
NMT1272SC, 1MHz, 1V
1000
65
130
VDC
pF
Insulation Resistance
1000VDC
1
10
GΩ
ABSOLUTE MAXIMUM RATINGS
　
Short-circuit protection 4
Lead temperature 1.5mm from case for 10 seconds
Input Voltage V IN , NMT0572SC
Input voltage V IN , NMT1272SC
1. Assuming all 3 channels are equally loaded.
2. Assuming only 1 channel is loaded.
3. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
1 second
300°C
7V
15V
For full details go to
www.murata-ps.com/rohs
4. Supply voltage must be disconnected at the end of the short circuit duration.
All speci?cations typical at T A =25°C, nominal input voltage and rated output current unless otherwise speci?ed.
www.murata-ps.com/support
KDC_NMT.E04 Page 1 of 4
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相关代理商/技术参数
NMT0572SC 制造商:Murata Power Solutions 功能描述:DC-DC CONVERTER
NMT0572SZ 功能描述:DC/DC转换器 3W TRIPLE OUTPUT RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
NMT0572SZC 功能描述:DC/DC转换器 3W 5Vin W/Shutdownpn TripOut -24,-48,-72V RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
NMT-1 功能描述:烙铁 FCR Nozzle Maint Tool RoHS:否 制造商:Weller 产品:Soldering Stations 类型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大温度:+ 850 F 电缆类型:US Cord Included
NMT1272S 功能描述:DC/DC转换器 USE 580-NMT1272SC RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
NMT1272SC 功能描述:DC/DC转换器 12V to -24V 42mA 3W Triple Output RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
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NMT1272SZ 功能描述:DC/DC转换器 3W TRIPLE OUTPUT RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: