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参数资料
| 型号： | LQN-0.8/50-D12H-C |
| 厂商： | MURATA POWER SOLUTIONS INC |
| 元件分类： | 电源模块 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-10 |
| 文件页数： | 9/14页 |
| 文件大小： | 1755K |
| 代理商： | LQN-0.8/50-D12H-C |
* Contact Murata Power Solutions for availability.
Note:
Some model number combinations may not be
available. Contact Murata Power Solutions (Datel).
Model options
Output
Configuration:
L = Unipolar
Low Voltage
Maximum Rated Output
Current in Amps
Non-Isolated Quarter Brick
Nominal Output Voltage:
0.8, 1, 1.2, 1.5, 1.8,
2, 2.5, 3.3 or 5 Volts
Mounting Method:
Blank = Through-hole package,
standard
M = Surface-mount package,
optional
L QN -
/
D12
-
1.8
M
Heat Transfer:
Blank = No heatsink
or baseplate, standard
B = Baseplate installed,
optional
H = Heatsink installed,
optional
50
C
-
RoHS-6 hazardous
substance compliant*
B
Input Voltage Range:
D12 = 10.2 to 13.8 Volts
(12V nominal)
1] All models are tested and specified with an external 33F tantalum input capaci-
tor, 470F Poscap output cap paralled with a 100F ceramic output capacitor.
These capacitors are necessary to accommodate our test equipment and may
not be required to achieve specified performance in your applications. All models
are stable and regulate within spec under no-load conditions.
[2] Input Ripple Current is tested and specified over a 5-20MHz bandwidth. Input
filtering is Cin = 200F tantalum (100 || 100), Cbus = 1000F electrolytic,
Lbus = 1H.
[3] Note that Maximum Power Derating curves indicate an average current at
nominal input voltage. At higher temperatures and/or lower airflow, the DC/DC
converter will tolerate shorter full current outputs if the total RMS current over
time does not exceed the Derating curve.
[4] Mean Time Before Failure is calculated using the Telcordia (Belcore) SR-332
Method 1, Case 3, ground fixed conditions, TPCBOARD = +25°C, full output
load, natural air convection.
[5] The On/Off Control (pin 4) may be driven with external logic or by applying
appropriate external voltages which are referenced to Common, pin 1. The
On/Off Control Input should use either an open collector/open drain transistor
or logic gate which does not exceed +Vin.
The On/Off Control may be supplied with positive logic (LO = off, HI = on) under
special quantity order.
[6] Short circuit shutdown begins when the output voltage degrades approximately
2% from the selected setting.
[7] The outputs are not intended to sink appreciable reverse current. If the outputs
are forced to sink excessive current, damage may result.
[8] Output noise may be further reduced by adding an external filter. See I/O Filtering
and Noise Reduction.
[9] All models are fully operational and meet published specifications, including
“cold start” at –40°C.
[10] Regulation specifications describe the deviation as the line input voltage or
output load current is varied from a nominal midpoint value to either extreme.
[11] Alternate pin length and/or other output voltages available under special quantity
order.
[12] Extreme accuracy refers to all combinations of trim adjustment, temperature,
airflow and load current.
[13] See Performance Specifications note 5.
[14] Output Capacitive Loading
Exceeding the maximum output capacitive load specification (at the indicated
ESR) may interfere with the Soft Start mode and possibly cause overcurrent shut-
down at startup while attempting to charge output caps. This risk increases with
combinations of high output capacitance and low Equivalent Series Resistance
(ESR) inside the capacitors, especially newer ceramic caps. Use just enough
output capacitance to achieve your noise suppression or energy storage needs
and no more. Thoroughly test your application with all components installed.
Be cautious when using the On/Off control in conjunction with high output capaci-
tance. If the output capacitors are not allowed to bleed down their voltage suf-
ficiently after shutdown, certain converters may be damaged by lingering output
voltage applied as reverse current into the outputs. Most converters include a
warning to strictly limit the amount of current sourced back into the converter.
[15] Always connect the sense pins. If they are not connected to a remote load, wire
each sense pin to its respective voltage output at the converter pins.
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous or Transient
15.5 Volts maximum
On/Off Control (pin 4)
+VIN maximum
Input Reverse Polarity Protection
See Fuse section
Output Overvoltage Protection
VOUT +20% maximum
Output Current
Current-limited (See note 7)
.
Devices can withstand sustained
short circuit without damage.
Storage Temperature
–55 to +125°C.
Lead Temperature (soldering 10 sec. max.)
+300°C. Refer to solder profile.
Absolute maximums are stress ratings. Exposure of devices to any of these conditions may
adversely affect long-term reliability. Proper operation under conditions other than those
listed in the Performance/Functional Specifications Table is not implied nor recommended.
NOTES
PART NUMBER STRUCTURE
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
www.murata-ps.com
MDC_LQN D12 Models.B03 Page 4 of 14
LQN D12 Models
Non-Isolated, Single Output, 12Vin, 0.8-5Vout
45-50 Amp, -Brick, DC/DC Converters
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| LQN-1.2/50-D12B-C | 功能描述:DC/DC转换器 60W 12V to 1.2V 50A 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: |
| LQN-1.2/50-D12-C | 功能描述:DC/DC转换器 60W 12V to 1.2V 50A 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: |
| LQN-1.2/50-D12H-C | 功能描述:DC/DC转换器 60W 12V to 1.2V 50A HEAT SINK 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: |
| LQN-1.2/50-D12MB-C | 功能描述:DC/DC转换器 60W 12V to 1.2V 50A SURFACE MOUNT 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: |
| LQN-1.2/50-D12M-C | 功能描述:DC/DC转换器 60W 12V to 1.2V 50A SURFACE MOUNT 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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