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参数资料
| 型号： | LSM-0.75/16-D12-C |
| 厂商： | MURATA POWER SOLUTIONS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, SMT-6 |
| 文件页数： | 6/12页 |
| 文件大小： | 381K |
| 代理商： | LSM-0.75/16-D12-C |
Input
Input Voltage Range
10-14 Volts (12V nominal)
Startup Voltage
8.5-9.2 Volts (model dependent)
Input Current:
Normal Operating Conditions
See Ordering Guide
Inrush Transient
0.08A2 sec
Standby/Off Mode
1.5mA
Output Short-Circuit Condition
12-40mA average (model dependent)
Input Reected Ripple Current
20-50mAp-p, model dependent
Input Filter Type
Capacitive
Overvoltage Protection
None
Reverse-Polarity Protection
None
Undervoltage Shutdown
7.5-8 Volts (model dependent)
On/Off Control
On = open lead
Off = -0.3V to +0.2V (3A max.)
Output
VOUT Accuracy (50% load)
±1.25%
Minimum Loading
No load
Maximum Capacitive Load
1000F (low ESR, OSCON)
VOUT Trim Range
±10%
Ripple/Noise (20MHz BW)
See Ordering Guide
Total Accuracy
3% over line/load/temperature
Efciency
See Ordering Guide
Overcurrent Detection and Short-Circuit Protection:
Current-Limiting Detection Point
21-33 Amps (model dependent)
Short-Circuit Detection Point
98% of VOUT set
SC Protection Technique
Hiccup with auto recovery
Short-Circuit Current
125-420mA average (model dependent)
Dynamic Characteristics
Transient Response (50% load step)
30-135sec to ±2% of nal value
(model dependent)
Start-Up Time:
VIN to VOUT and On/Off to VOUT
60msec for VOUT = 1V and 0.75V
40msec for VOUT = 1.2V to 5V
Switching Frequency
260kHz ±10%
Environmental
Calculated MTBF
LSM-1.2/16-D12
9,160,138 hours
LSM-1.5/16-D12
8,674,318 hours
LSM-1.8/16-D12
8,334,117 hours
LSM-2.5/16-D12
8,534,580 hours
LSM-3.3/16-D12
7,817,255 hours
LSM-5/16-D12
7,756,061 hours
Operating Temperature: (Ambient)
–40 to +85°C (with Derating)
See Derating Curves
Thermal Shutdown
+115°C (110 to 125°C)
Physical
Dimensions
1.3" x 0.53" x 0.34" (33.03 x 13.46 x 8.64)
Lead Dimensions/Material
0.112" x 0.062" (2.84 x 1.57mm) rectangular
copper alloy with gold plate over nickel
underplate
Weight
0.28 ounces (7.8g)
Flamability Rating
UL94V-0
Safety
Designed to meetUL/cUL/IEC/EN 60950-1,
CSA-C22.2 No. 234
Performance/Functional Specications
Typical @ TA = +25°C under nominal line voltage and full-load conditions unless noted.
All models are tested and specied with external 22F tantalum input and output capacitors.These
capacitors are necessary to accommodate our test equipment and may not be required to achieve
specied performance in your applications. All models are stable and regulate within spec under
no-load conditions.
See Technical Notes and Performance Curves for details.
The On/Off Control (pin 1) is designed to be driven with open-collector logic (referenced to Common,
pin 3) or a switch to ground.
Output noise may be further reduced with the installation of additional external output ltering. See
I/O Filtering and Noise Reduction.
MTBF’s are calculated using Telcordia SR-332(Bellcore), ground xed, Ta = +25°C, full power,
natural convection, +67°C pcb temperature.
Input Ripple Current is tested/specied over a 5Hz-20MHz bandwidth with an external 2 x 100F
input capacitor and a simulated source impedance of 1000F and 1H. See I/O Filtering, Input
Ripple Current and Output Noise for details.
Input Voltage:
Continuous or transient
15 Volts
On/Off Control (Pin 1)
+6V
Input Reverse-Polarity Protection
None
Output Overvoltage Protection
None
Output Current
Current limited. Devices can
withstand sustained output short
circuits without damage.
Storage Temperature
–55 to +125°C
Lead Temperature
See Reow Solder Prole
These are stress ratings. Exposure of devices to greater than any of these conditions may
adversely affect long-term reliability. Proper operation under conditions other than those
listed in the Performance/Functional Specications Table is not implied.
Absolute Maximum Ratings
I/O Filtering and Noise Reduction
All models in the LSM D12 Series are tested and specied with external 22μF
tantalum input and output capacitors. These capacitors are necessary to
accommodate our test equipment and may not be required to achieve desired
performance in your application. The LSM D12's are designed with high-
quality, high-performance internal I/O caps, and will operate within spec in
most applications with no additional external components.
In particular, the LSM D12s input capacitors are specied for low ESR and
are fully rated to handle the units’ input ripple currents. Similarly, the internal
output capacitors are specied for low ESR and full-range frequency response.
As shown in the Performance Curves, removal of the external 22μF tantalum
output caps has minimal effect on output noise.
In critical applications, input/output ripple/noise may be further reduced using
ltering techniques, the simplest being the installation of external I/O caps.
External input capacitors serve primarily as energy-storage devices. They
minimize high-frequency variations in input voltage (usually caused by IR drops
in conductors leading to the DC/DC) as the switching converter draws pulses of
current. Input capacitors should be selected for bulk capacitance (at appropri-
ate frequencies), low ESR, and high rms-ripple-current ratings. The switching
nature of modern DC/DCs requires that the dc input voltage source have low
ac impedance at the frequencies of interest. Highly inductive source imped-
ances can greatly affect system stability. Your specic system conguration
may necessitate additional considerations.
Technical Notes
LSM-16A D12 Models
Non-Isolated, 13-80W SMT DC/DC Converters
MDC_LSM 16A D12 Models.A05 Page 3 of 12
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
www.murata-ps.com
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