LSM2-T MURATA [Murata Manufacturing Co., Ltd.], LSM2-T Datasheet - Page 4

• Manufacturer Part Number: LSM2-T
• Description: DOSA-SMT, 30A POL DC/DC Converters
• Manufacturer: MURATA [Murata Manufacturing Co., Ltd.]

Performance and Functional Specifications
See Note 1
Input Voltage Range
Isolation
Start-Up Voltage
Undervoltage Shutdown
Overvoltage Shutdown
Reflected (Back) Ripple Current (Note 2) 50 mA pk-pk
Internal Input Filter Type
Reverse Polarity Protection
Input Current:
Remote On/Off Control (Note 5)
Minimum Loading
Accuracy (50% load)
Voltage Adjustment Range (Note 13)
Overvoltage Protection (Note 20)
Temperature Coefficient
Ripple/Noise (20 MHz bandwidth)
Line/Load Regulation (See Tech. Notes)
Efficiency
Maximum Capacitive Loading (Note 15)
Current Limit Inception (Note 19)
Short Circuit Mode (Note 6)
Prebias Startup (Note 16)
Sequencing
Remote Sense to V
Full Load Conditions
Inrush Transient
Shutdown Mode (Off, UV, OT)
Output Short Circuit
No Load, 5V out
Low Line (V
Negative Logic (No model suffix)
(See Note 18)
Current
Cap-ESR=0.001 to 0.01 Ohms
Cap-ESR >0.01 Ohms
(98% of V
Short Circuit Current Output
Protection Method
Short Circuit Duration
Slew Rate
Startup delay until sequence start
Tracking accuracy, rising input
Tracking accuracy, falling input
out
in
=Vmin, 5V
setting)
out
out
)
Output
Input
See Ordering Guide
Not isolated. Input and output
Commons are internally connected.
5.6 Volts
5 Volts
None
Capacitive
None, see fuse information
See Ordering Guide
0.4 A
5 mA
60 mA
210 mA
18.9 Amps
ON = 0 to +0.55 V max.
OFF = +3.0V min. to +V
1.3 mA max.
No minimum load
±1.5 % of Vnominal
See Ordering Guide
None
±0.01% per
See Ordering Guide and Note 8
See Ordering Guide and Note 10
See Ordering Guide
5,000 µF
10,000 µF
48 Amps (cold startup)
42 Amps (after warm up)
600 mA
Hiccup autorecovery upon overload
removal. (Note 17)
Continuous, no damage (output shorted
to ground)
Converter will start up if the external
output voltage is less than Vnominal.
2V per millisecond max.
10 milliseconds min.
V
V
0.5V max. (Note 7)
out
out
=±100 mV of Sequence In
=±200 mV of Sequence In
2
Sec.
www.murata-ps.com
ο
C of V
out
range
in
max.
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.
Specification Notes:
(1) Specifications are typical at +25°C, V
(2) Input Back Ripple Current is tested and specified over a 5 Hz to 20 MHz bandwidth. Input filter-
(3) Note that Maximum Power Derating curves indicate an average current at nominal input
(4) Mean Time Before Failure is calculated using the Telcordia (Belcore) SR-332 Method 1, Case 3,
(5) The On/Off Control may be driven with external logic or by applying appropriate external volt-
(6) Short circuit shutdown begins when the output voltage degrades approximately 2% from the
Dynamic Load Response
Start-Up Time
Switching Frequency
Calculated MTBF (4)
Operating Temperature Range
Storage Temperature Range
Thermal Protection/Shutdown
Relative Humidity
Outline Dimensions
Weight
Electromagnetic Interference
(conducted and radiated)
Safety
Input Voltage (Continuous or transient)
On/Off Control (negative logic)
Input Reverse Polarity Protection
Output Current (Note 7)
Storage Temperature
Lead Temperature (soldering 10 sec. max.)
caps and natural convection unless otherwise indicated. Tests at full power should supply
substantial forced airflow.
All models are tested and specified with external 0.1µF and 10 µF paralleled ceramic/tantalum
output capacitors and a 22 µF external input capacitor. All capacitors are low ESR types. 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.
ing is C
voltage. At higher temperatures and/or lower airflow, the DC/DC converter will tolerate brief full
current outputs if the total RMS current over time does not exceed the Derating curve.
ground fixed conditions, Tpcboard=+25°C, full output load, natural air convection.
ages which are referenced to -Input Common. The On/Off Control Input should use either an
open collector/open drain transistor or logic gate which does not exceed +V
selected setting.
(50-100-50% load step, di/dt=20A/µSec)
(V
With derating
in
on to V
in
=2 x 100 µF tantalum, Cbus=1000 µF electrolytic, Lbus=1 µH.
out
regulated or On/Off to V
LSM2-T/30-D12 Series
Technical enquiries email: [e-mail], tel:
Absolute Maximum Ratings
DOSA-SMT, 30A POL DC/DC Converters
Dynamic Characteristics
in
Environmental
out
=nominal (+12V), V
MDC_LSM2_T30_D12 Series.B11 Page 4 of 12
)
Physical
60 µSec to within ±2% of final value
10 mSec for V
430 ±30 KHz
3,917,077 Hours
-40 to +85°C. (Note 9)
See Derating Curves (Note 12)
-55 to +125°C.
+115°Celsius
to 85%/+85°C, non-condensing
See Mechanical Specifications
0.28 ounces (7.8 grams)
FCC part 15, class B, EN55022 (may need
external filter)
Designed to meet UL/cUL 60950-1 CSA-C22.2
No. 60950-1, IEC/EN 60950-1
+15 Volts
Zero Volts min. to +V
None, s
Current-limited. Devices can withstand
sustained short circuit without damage.
-55 to +125
+280°C.
ee fuse section
out
°
C.
=nominal (+5V), full load, external
out
=nominal
in
max.
[phone]
in
.