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NTA Series
Isolated 1W Dual Output SM DC/DC Converters
RoHS COMPLIANCE, MSL AND PSL INFORMATION
This series is compatible with RoHS soldering systems and is also backward compatible with Sn/Pb soldering systems.
The NTA series has a process, moisture, and re?ow sensitivity classi?cation of MSL1 PSL R7F as de?ned in J-STD-020
and J-STD-075. This translates to: MSL1 = unlimited ?oor life, PSL R7F = Peak re?ow temperature 245°C with a
limitation on the time above liquidus (217°C) which for this series is 60sec max. The pin termination ?nish on this product
series is Gold with a plating thickness of 0.05 microns minimum.
For further information please visit www.murata-ps.com/rohs
APPLICATION NOTES
Minimum load
The minimum load to meet datasheet speci?cation is 10% of the full rated load across the speci?ed input voltage range. Lower than 10% minimum loading will result in
an increase in output voltage, which may rise to typically double the speci?ed output voltage if the output load falls to less than 5%.
Capacitive loading and start up
Typical start up times for this series, with a typical input voltage rise time of 2.2μs and output capacitance of 10μF, are shown in the table below. The product
series will start into a capacitance of 47μF with an increased start time, however, the maximum recommended output capacitance is 10μF.
Typical Start-Up Wave Form
Start-up time
μs
Start-up time
μs
NTA0303MC
NTA0305MC
NTA0309MC
NTA0312MC
NTA0315MC
NTA0503MC
NTA0505MC
NTA0505MEC
1630
1359
3435
6590
25340
1599
2185
1395
NTA0509MC
NTA0512MC
NTA0515MC
NTA1205MC
NTA1209MC
NTA1212MC
NTA1215MC
6850
11560
15640
1154
4050
7995
11200
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test con?guration.
C1
C2
1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter
10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less
than 100mΩ at 100 kHz
C3 100nF multilayer ceramic capacitor, general purpose
R1 450Ω resistor, carbon ?lm, ±1% tolerance
R2 50Ω BNC termination
T1 3T of the coax cable through a ferrite toroid
RLOAD Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires
Measured values are multiplied by 10 to obtain the speci?ed values.
Differential Mode Noise Test Schematic
DC/DC Converter
OSCILLOSCOPE
SUPPLY
+
Input
-
+
Output
-
C1 C2 C3
R1
T1
R2
Y INPUT
R LOAD
www.murata-ps.com/support
KDC_NTA.I04 Page 3 of 6
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相关代理商/技术参数
NTA1212MC-R 功能描述:DC/DC转换器 1W12-12VDUAL1kV 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:
NTA1212M-R 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC
NTA1212XMC 制造商:MICRODC 制造商全称:MICRODC 功能描述:1W, FIXED INPUT, ISOLATED DUAL OUTPUT SMD DC-DC CONVERTER 功率1W，定电压输入，隔离1500VDC，双输出，SMD贴片封装DC-DC电源模块转换器
NTA1215M 功能描述:DC/DC转换器 1W DUAL OUT 12-15VDC 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:
NTA1215MC 功能描述:DC/DC转换器 1W DUAL OUT 12-15VDC Dual 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:
NTA1215MC-R 功能描述:DC/DC转换器 1W12-15VDUAL1kV 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:
NTA1215M-R 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC
NTA1215XMC 制造商:MICRODC 制造商全称:MICRODC 功能描述:1W, FIXED INPUT, ISOLATED DUAL OUTPUT SMD DC-DC CONVERTER 功率1W，定电压输入，隔离1500VDC，双输出，SMD贴片封装DC-DC电源模块转换器