Murata LSM2-T30-D12R-C Dosa-smt, 30a pol dc/dc converter Datasheet

LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
Typical unit
FEATURES
DESCRIPTION
n Non-isolated Point-of-Load (POL) converter,
ideal for distributed bus applications
Today’s high performance CPU and programmable logic devices demand superior performance
from their power source. The LSM2-T/30-D12
series DC/DC converters offer up to 30 Amps
continuous output power with a user-selectable
output of 0.8 to 3.6 Volts. 25 Amps output is
available up to 5.0 Vout. This tiny converter is
ideal for distributed bus architectures (DBA) and
intermediate power busses with an input range
of 6 to 14 Volts DC. The pinout, trim system and
mechanical footprint is compatible with the DOSA
(www.dosapower.com) industry standard.
To ensure very high performance of powered
logic systems, the LSM2-T/30-D12 features low
output noise, high slew rates (20 Amps/µSec.),
fast transient response (25 µSec settling) and
tight line and load regulation. Many logic devices
require controlled start up and tracking capabilities. The LSM2-T/30-D12 includes a Sequence/
Track function and prebias protection against
external startup voltages. Other DBA features
n Optimized for CPUs, DSPs and programmable logic - FPGAs, ASICs
n 30 Amps maximum output current
n User-selectable output voltage, 0.8Vdc to
5.0Vdc via trim resistor or voltage input
n Wide input range 6Vdc to 14Vdc (Vout <3.6V)
n Selectable phased start-up sequencing and
tracking
n Excellent efficiency over output voltage range
n Two models available, with or without additional ground/thermal pads
n Fast settling, high di/dt slew rate, low
output noise
n Extensive self protection plus 'hiccup' short
circuit auto recovery
n Designed for full safety and emission certification
include no additional external components
required, stable no-load operation, up to 10,000
µF output load capacitance and no reverse
conduction.
System functions offer a remote On/Off control, two additional ground pins (optional) and a
load Sense input. Agency certifications include
UL/EN 60950-1, CAN/CSA-C22.2 60950-1, IEC
60950-1, and FCC emissions characterization.
The automated surface mount assembly is fully
RoHS (Reduction of Hazardous Substances)
lead-free construction and attachment. The
LSM2-T/30-D12 mounts to its host carrier
board via reflow-soldered PCB pads.
The extraordinary efficiency means low heat
and freedom from expensive, bulky heat sinks. A
wealth of protection features include input undervoltage shutdown, output overcurrent current limiting, short circuit protection and overtemperature
shutdown/recycle.
SIMPLIFIED SCHEMATIC
+OUTPUT
+INPUT
*
Additional
ground/thermal
pads
+SENSE
COMMON
COMMON
VCC
ON/OFF
CONTROL
PWM
CONTROLLER
CURRENT
SENSE
REFERENCE &
ERROR AMP
VTRACK /
SEQUENCE
INPUT
*One phase of two is shown.
VOUT
TRIM
Typical topology is shown.
Pb
For full details go to
www.murata-ps.com/rohs
Lead-free
construction/attach
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MDC_LSM2_T30_D12 Series.B11 Page 1 of 12
LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE 
Output
Input
R/N (mVp-p)
Load
VIN Nom.
(Volts)
Range 
(Volts)
IIN 
(mA/A)
Min.
Typ.
Package
(Case/
Pinout)
±0.4%
12
6-14
210/11.1
92.5%
94%
C71, P72
±0.4%
12
6-14
210/11.1
92.5%
94%
C71, P72
Regulation (max.)
Model Family
VOUT
(Volts)
IOUT 
(Amps)
Power
(Watts)
Typ.
Max.
Line
LSM2-T/30-D12-C
0.8-5
30
125
15
25
±0.2%
LSM2-T/30-D12R-C
0.8-5
30
125
15
25
±0.2%
 Typical @ Ta=+25°C. under nominal line voltage and full-load conditions unless noted. Nominal
output is +5 Volts.
 Ripple/Noise (R/N) is tested/specified over a 5 Hz to 20 MHz bandwidth and may be reduced by
adding external filtering. R/N is shown at Vout <= 2.5 Volts.
 These devices have no minimum load requirements and will regulate under no-load conditions.
Regulation specifications describe the output voltage deviation as the line voltage or load is varied
from its nominal/midpoint value to either extreme.



➆
Efficiency
Nominal line voltage, no-load/full-load conditions.
LSM2-T/30-D12 efficiencies are shown at Vout = 5 Volts.
Iout max. is 30 Amps with Vin = 0.8 to 3.6 Volts. With Vin >3.6 Volts, Iout max. is 25 Amps.
If Vout >3.63V, input range is 7-14V.
PART NUMBER STRUCTURE
L SM2 - T / 30 - D12 R - C
RoHS-6 compliant
Output Configuration:
L = Unipolar
Low Voltage
Additional Grounds:
Blank = Omitted
R = Installed
Non-Isolated SMT
Nominal Output Voltage:
0.8-5.0 Volts
Input Voltage Range:
D12 = 6-14 Volts (12V nominal)
See note 7 above.
Maximum Rated Output
Current in Amps
MECHANICAL SPECIFICATIONS
1.30
(33.02)
Case C71
INPUT/OUTPUT CONNECTIONS P72
Pad
Function
0.36
(9.14)
Component locations
are typical.
0.062
(1.57)
0.950 (24.13)
5 EQ. SP. @
0.190 (4.83)
0.120
(3.05)
3
4
5
6
0.155
(3.94)
7
8
0.114
(2.9)
*
1
*
2
0.430
(10.92)
1
BOTTOM VIEW
0.48
(12.19)
0.53
(13.46)
On/Off Control
2
+Input
3
Sequence/Track In
4
Common
5
+Output
6
Trim
7
Sense In
8
Not used
*
Additional Ground (optional)
Dimensions are in inches (mm)
0.075 (1.91)
0.120 (30.5)
0.027 (0.68)
1.177
(29.90)
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0.048
(1.22)
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MDC_LSM2_T30_D12 Series.B11 Page 2 of 12
LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
0.677 (17.20)
0.867 (22.02)
1.057 (26.85)
TRIM
Vout
GND
SEQ
1.204 (30.58)
0.487 (12.37)
SENSE
1.177 (29.90)
0.297 (7.54)
Not Used
0.000 (0.00)
0.107 (2.72)
RECOMMENDED PAD LAYOUT
0.405 (10.29)
Optional Additional Ground
Pad Size: 0.095 x 0.082 (2.41 x 2.08)
0.120 (3.05)
0.089 (2.26)
0.000 (0.00)
GND (-H)
GND (-H)
ON/OFF
Vin
Optional Additional Ground
Pad Size: 0.095 x 0.082 (2.41 x 2.08)
0.025 (0.64)
Pad Size: Min. 0.140 x 0.095 (3.56 x 2.08)
Dimensions are in inches (mm)
Additional Ground/Thermal Pads (“R” models)
The LSM2-T/30-D12 is optionally available with two additional ground
pads for increased current handling and better heat transfer. These are
indicated with the “R” designator in the model number, LSM2-T/30-D12R-C.
MPS recommends that users lay out their PC boards to accept these two
pads for larger current applications. Please note that the Derating curves for
the “R” models accept higher temperature and greater current limits than
units without the additional pads.
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To realize the additional current and thermal capacity of “R” models, you
must have a substantial area of several square inches of copper etch flowsoldered to these pads and sufficient feed-throughs or other means of conducting current. The “R” pads and the standard pads 1 and 2 are in parallel.
If your application uses a standard DOSA pad layout and you cannot connect to these ground pads, order model LSM2-T/30-D12-C without the “R”
designator. Please observe the lower Derating curves for standard, “non-R”
models.
Technical enquiries email: [email protected], tel: +1 508 339 3000
MDC_LSM2_T30_D12 Series.B11 Page 3 of 12
LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
Performance and Functional Specifications
See Note 1
Dynamic Characteristics
Input
Input Voltage Range
See Ordering Guide
Isolation
Not isolated. Input and output
Commons are internally connected.
Dynamic Load Response
(50-100-50% load step, di/dt=20A/µSec)
60 µSec to within ±2% of final value
10 mSec for Vout=nominal
430 ±30 KHz
Start-Up Voltage
5.6 Volts
Start-Up Time
(Vin on to Vout regulated or On/Off to Vout)
Undervoltage Shutdown
5 Volts
Switching Frequency
Overvoltage Shutdown
None
Environmental
Reflected (Back) Ripple Current (Note 2) 50 mA pk-pk
Calculated MTBF (4)
3,917,077 Hours
Internal Input Filter Type
Capacitive
Reverse Polarity Protection
None, see fuse information
Operating Temperature Range
With derating
-40 to +85°C. (Note 9)
See Derating Curves (Note 12)
Input Current:
Full Load Conditions
Inrush Transient
Shutdown Mode (Off, UV, OT)
Output Short Circuit
No Load, 5V out
Low Line (Vin=Vmin, 5Vout)
Storage Temperature Range
-55 to +125°C.
See Ordering Guide
0.4 A2Sec.
5 mA
60 mA
210 mA
18.9 Amps
Thermal Protection/Shutdown
+115°Celsius
Relative Humidity
to 85%/+85°C, non-condensing
Remote On/Off Control (Note 5)
Negative Logic (No model suffix)
(See Note 18)
Current
Weight
0.28 ounces (7.8 grams)
ON = 0 to +0.55 V max.
OFF = +3.0V min. to +Vin max.
1.3 mA max.
Electromagnetic Interference
(conducted and radiated)
FCC part 15, class B, EN55022 (may need
external filter)
Safety
Designed to meet UL/cUL 60950-1 CSA-C22.2
No. 60950-1, IEC/EN 60950-1
Output
Physical
Outline Dimensions
See Mechanical Specifications
Absolute Maximum Ratings
Minimum Loading
No minimum load
Accuracy (50% load)
±1.5 % of Vnominal
Input Voltage (Continuous or transient)
+15 Volts
Voltage Adjustment Range (Note 13)
See Ordering Guide
On/Off Control (negative logic)
Zero Volts min. to +Vin max.
Overvoltage Protection (Note 20)
None
Input Reverse Polarity Protection
None, see fuse section
Temperature Coefficient
±0.01% per οC of Vout range
Ripple/Noise (20 MHz bandwidth)
See Ordering Guide and Note 8
Output Current (Note 7)
Current-limited. Devices can withstand
sustained short circuit without damage.
Line/Load Regulation (See Tech. Notes)
See Ordering Guide and Note 10
Storage Temperature
-55 to +125°C.
Efficiency
See Ordering Guide
Lead Temperature (soldering 10 sec. max.)
+280°C.
Maximum Capacitive Loading (Note 15)
Cap-ESR=0.001 to 0.01 Ohms
5,000 µF
Cap-ESR >0.01 Ohms
10,000 µF
Current Limit Inception (Note 19)
(98% of Vout setting)
48 Amps (cold startup)
42 Amps (after warm up)
Short Circuit Mode (Note 6)
Short Circuit Current Output
600 mA
Protection Method
Hiccup autorecovery upon overload
removal. (Note 17)
Short Circuit Duration
Continuous, no damage (output shorted
to ground)
Prebias Startup (Note 16)
Converter will start up if the external
output voltage is less than Vnominal.
Sequencing
Slew Rate
2V per millisecond max.
Startup delay until sequence start
10 milliseconds min.
Tracking accuracy, rising input
Vout=±100 mV of Sequence In
Tracking accuracy, falling input
Vout=±200 mV of Sequence In
Remote Sense to Vout
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, Vin=nominal (+12V), Vout=nominal (+5V), full load, external
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.
(2) Input Back Ripple Current is tested and specified over a 5 Hz to 20 MHz bandwidth. Input filtering is Cin=2 x 100 µF tantalum, Cbus=1000 µF electrolytic, Lbus=1 µH.
(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 brief 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 may be driven with external logic or by applying appropriate external voltages 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 +Vin.
(6) Short circuit shutdown begins when the output voltage degrades approximately 2% from the
selected setting.
0.5V max. (Note 7)
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MDC_LSM2_T30_D12 Series.B11 Page 4 of 12
LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
Specification Notes continued:
(7) If Sense is connected remotely at the load, up to 0.5 Volts difference is allowed between the
Sense and +Vout pins to compensate for ohmic voltage drop in the power lines. A larger voltage drop may cause the converter to exceed maximum power dissipation.
(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) Other input or output voltage ranges will be reviewed under scheduled quantity special order.
(12) Maximum continuous power requires that all on-board components not exceed +128°C package temperature.
(13) Do not exceed maximum power specifications when adjusting the output trim.
(14) The “R” option includes extra ground pads. These pads offer two important features. In addition
to carrying extra current, they also help dissipate additional heat. MPS strongly recommends
soldering the “R” pads to a thick ground plane with sizable area. The Operating Temperature
specification listed above assumes that these additional ground pads are connected to
a substantial ground plane below the converter ( at least several square inches).
(15) The maximum output capacitive loads depend on the the Equivalent Series Resistance (ESR)
of the external output capacitor. Larger caps will reduce output noise but may slow transient
response.
(16) Do not use Pre-bias startup and sequencing together. If you do not use the track function, leave
the seq/trk pin open.
(17) After short circuit shutdown, if the load is partially removed such that the load still exceeds the
overcurrent (OC) detection, the converter will remain in hiccup restart mode.
(18) Output current limiting is disabled at start up to avoid overcurrent shutdown while charging
external bypass capacitors.
Resistor Trim Equation
1200
RTRIM (in Ohms) = --------------------- -100
VOUT – 0.8
The fixed trim resistors to set the output voltage are:
Vout
0.8V.
1.0V.
1.2V.
Rtrim (Ohms)
Vout
Rtrim (Ohms)
Open
5.90 KΩ
2.0V.
2.5V.
3.3V.
0.90 KΩ
605 Ω
380 Ω
Output Adjustments
The LSM2-T/30-D12 series includes a special output voltage trimming feature which is fully compatible with competitive units. The output voltage may
be varied using a single trim resistor from the Trim Input to Power Common.
Use a precision, low-tempco resistor (±100 ppm/οC) mounted close to
the converter with short leads. Be aware that the voltage accuracy is ±1.5%
(typical) therefore adjust this resistance to achieve your desired output.
2.90 KΩ
1.5V.
1.614
KΩ
5.0V.
185.71
Ω
1.8V.
1.10 KΩ
Voltage Reference,
Figure 2. Voltage Trim Connections
Voltage Trim
The LSM2 Series may also be trimmed using an external low-noise voltage
applied between the Trim input and Output Common. Be aware that the internal “load” impedance looking into Trim pin is below 1000 Ohms and includes
factors from the output voltage. Therefore, use a low impedance source
resistance in your external voltage reference.
The fixed trim voltages to set the output voltage are:
Figure 1. Trim Resistor Connections
Vout (typ.)
0.80V.
1.0V.
1.2V.
1.5V.
1.8V.
Vtrim (Volts)
Open
0.787V.
0.773V.
0.753V.
0.733V
Vout (typ.)
2.0 V.
2.5V.
3.3V.
5.0V.
0.720V.
0.687V.
0.633V.
0.520V.
Vtrim (Volts)
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MDC_LSM2_T30_D12 Series.B11 Page 5 of 12
LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
PERFORMANCE DATA: OUTPUT VOLTAGE = 5 VOLTS
Efficiency vs. Line Voltage and Load Current @ +25°C
Output Ripple & Noise (Vin = 12 V, Iout = 20 A,
Cout = 10µF || 1µF, ’scope = 20 MHz BW)
Vertical = 20 mV/div., Sweep = 1µS/div.
98
93
Efficiency (%)
88
VIN = 14 V
VIN = 12 V
VIN = 7 V
83
78
73
68
63
58
1
2.66
4.31
5.97
7.62
9.28
10.9
12.6
14.2
15.9
17.6
19.2
20.9
22.5
24.2
Load C urre nt (Amps)
Output Current (Amps)
LSM2-T/30-D12R Maximum Current Temperature Derating at Sea Level
(Vin= 12V, Transverse Airflow). Extra ground pads installed.
31.00
30.00
29.00
28.00
27.00
26.00
25.00
24.00
23.00
22.00
21.00
20.00
19.00 Natural Convection
100 LFM
18.00
200 LFM
17.00
16.00
15.00
14.00
13.00
12.00
20
25
30
Power-On Startup (Vin = 12 V, Iout = 25 A)
Ch2 = 20 A/div.
300 LFM
400 LFM
500 LFM
35
40
45
50
55
60
65
Ambient Temperature (°C)
70
75
80
85
90
Output Current (Amps)
LSM2-T/30-D12 Maximum Current Temperature Derating at Sea Level
(Vin= 12V, Transverse Airflow). No extra ground pads.
31.00
30.00
29.00
28.00
27.00
26.00
25.00
24.00
23.00
22.00
21.00
20.00
19.00
18.00
17.00
16.00 Natural Convection
15.00
100 LFM
14.00
200 LFM
13.00
12.00
11.00
20
25
30
35
StepLoad Transient Response (Vin = 12 V, 0-15A-0)
300 LFM
400 LFM
500 LFM
40
45
50
55
60
Ambient Temperature (°C)
65
70
75
80
85
90
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MDC_LSM2_T30_D12 Series.B11 Page 6 of 12
LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
PERFORMANCE DATA: OUTPUT VOLTAGE = 3.3 VOLTS
Efficiency vs. Line Voltage and Load Current (Vin = 12V) @ +25°C
Output Ripple & Noise (Vin = 12 V, Iout = 20 A,
Cout = 10µF || 1µF, ’scope = 20 MHz BW)
Vertical = 20 mV/div., Sweep = 1µS/div.
93
Efficiency (%)
88
VIN = 14 V
VIN = 12 V
VIN = 6 V
83
78
73
68
63
58
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
O utput Current (Amps)
Output Current (Amps)
LSM2-T/30-D12R Maximum Current Temperature Derating at Sea Level
(Vin= 12V, Transverse Airflow). Extra ground pads installed.
31.00
30.00
29.00
28.00
27.00
26.00
25.00
24.00
23.00
22.00
21.00
20.00 Natural Convection
100 LFM
19.00
200 LFM
18.00
17.00
16.00
15.00
14.00
13.00
12.00
20
25
30
35
Power-On Startup (Vin = 12 V, Iout = 25 A)
300 LFM
400 LFM
40
45
50
55
60
Ambie nt Te mpe rature (°C)
65
70
75
80
85
90
Output Current (Amps)
LSM2-T/30-D12 Maximum Current Temperature Derating at Sea Level
(Vin= 12V, Transverse Airflow). No extra ground pads.
31.00
30.00
29.00
28.00
27.00
26.00
25.00
24.00
23.00
22.00
21.00
20.00
19.00 Natural Convection
100 LFM
18.00
200 LFM
17.00
300 LFM
16.00
15.00
14.00
13.00
12.00
20
25
30
StepLoad Transient Response (Vin = 12 V, 0-15A-0)
400 LFM
500 LFM
35
40
45
50
55
60
Ambient Temperature (°C)
65
70
75
80
85
90
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MDC_LSM2_T30_D12 Series.B11 Page 7 of 12
LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
PERFORMANCE DATA: OUTPUT VOLTAGE = 2.5 VOLTS
Efficiency vs. Line Voltage and Load Current (Vin = 12V) @ +25°C
Output Ripple & Noise (Vin = 12 V, Iout = 20 A,
Cout = 10µF || 1µF, ’scope = 20 MHz BW)
Vertical = 20 mV/div., Sweep = 1µS/div.
93
88
VIN = 14 V
VIN = 12 V
VIN = 6 V
Efficiency (%)
83
78
73
68
63
58
1
2
3
4
5
6
7
8
9
10
11 12
13 14 15
16 17 18
19 20
21 22 23
24 25 26
27 28
29 30
O utput C urre nt (Amps)
Output Current (Amps)
LSM2-T/30-D12R Maximum Current Temperature Derating at Sea Level
(Vin= 12V, Transverse Airflow). Extra ground pads installed.
31.00
30.00
29.00
28.00
27.00
26.00
25.00
24.00
23.00
22.00
21.00 Natural Convection
100 LFM
20.00
200 LFM
19.00
18.00
17.00
16.00
15.00
20
25
30
300 LFM
400 LFM
35
40
45
50
55
60
65
70
75
80
85
90
Ambie nt Te mpe rature (°C)
Output Current (Amps)
LSM2-T/30-D12 Maximum Current Temperature Derating at Sea Level
(Vin= 12V, Transverse Airflow). No extra ground pads.
31.00
30.00
29.00
28.00
27.00
26.00
25.00
24.00
23.00
22.00
21.00
20.00
19.00
18.00 Natural Convection
100 LFM
17.00
200 LFM
16.00
15.00
14.00
13.00
20
25
30
StepLoad Transient Response (Vin = 12 V, 0-15A-0)
300 LFM
400 LFM
35
40
45
50
55
60
65
Ambie nt Te mpe rature (°C)
70
75
80
85
90
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MDC_LSM2_T30_D12 Series.B11 Page 8 of 12
LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
PERFORMANCE DATA: OUTPUT VOLTAGE = 1.8 VOLTS
Efficiency vs. Line Voltage and Load Current @ +25°C
Output Ripple & Noise (Vin = 12 V, Iout = 20 A,
Cout = 10µF || 1µF, ’scope = 20 MHz BW)
Vertical = 10 mV/div., Sweep = 1µS/div.
91
86
Efficiency (%)
81
VIN = 14 V
VIN = 12 V
VIN = 6 V
76
71
66
61
56
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Load Current (Amps)
LSM2-T/30-D12R Maximum Current Temperature Derating at Sea Level
(Vin= 12V, Transverse Airflow). Extra ground pads installed.
Power-On Startup (Vin = 12 V, Iout = 25 A)
31.00
30.00
300 LFM
400 LFM
29.00
28.00
27.00
Output Current (Amps)
26.00
25.00
24.00
23.00
Natural Convection
100 LFM
200 LFM
22.00
21.00
20.00
19.00
18.00
17.00
20
25
30
35
40
45
50
55
60
65
Ambient Temperature (°C)
70
75
80
85
90
Output Current (Amps)
LSM2-T/30-D12 Maximum Current Temperature Derating at Sea Level
(Vin= 12V, Transverse Airflow). No extra ground pads.
31.00
30.00
29.00
28.00
27.00
26.00
25.00
24.00
23.00
22.00
21.00
20.00
Natural Convection
19.00
100 LFM
18.00
200 LFM
17.00
16.00
15.00
14.00
13.00
20
25
30
35
StepLoad Transient Response (Vin = 12 V, 0-15A-0)
300 LFM
400 LFM
40
45
50
55
60
Ambie nt Te mpe rature (°C)
65
70
75
80
85
90
www.murata-ps.com
Technical enquiries email: [email protected], tel: +1 508 339 3000
MDC_LSM2_T30_D12 Series.B11 Page 9 of 12
LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
PERFORMANCE DATA: OUTPUT VOLTAGE = 1.2 VOLTS
Efficiency vs. Line Voltage and Load Current @ +25°C (Vin = 12V)
Output Ripple & Noise (Vin = 12 V, Iout = 30 A,
Cout = 10µF || 1µF, ’scope BW = 20 MHz)
89
84
VIN = 6 V
VIN = 12 V
VIN = 14 V
79
Efficiency (%)
74
69
64
59
54
49
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Output Current (Amps)
Output Current (Amps)
LSM2-T/30-D12R Maximum Current Temperature Derating
(Vin= 12V, Transverse Airflow). Extra ground pads installed.
31.00
30.00
29.00
28.00
27.00
26.00
25.00
24.00
23.00
22.00 Natural Convection
100 LFM
21.00
200 LFM
20.00
19.00
18.00
17.00
16.00
20
25
30
Power-On Startup (Vin = 12 V, Iout = 30 A)
300 LFM
400 LFM
35
40
45
50
55
60
65
70
75
80
85
90
Ambient Temperature (°C)
StepLoad Transient Response (Vin = 12 V, 0-15A-0)
www.murata-ps.com
Technical enquiries email: [email protected], tel: +1 508 339 3000
MDC_LSM2_T30_D12 Series.B11 Page 10 of 12
LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
PERFORMANCE DATA: OUTPUT VOLTAGE = 0.8 VOLTS
Efficiency vs. Line Voltage and Load Current @ +25°C (Vin = 12V)
Output Ripple & Noise (Vin = 12 V, Iout = 30 A,
Cout = 10µF || 1µF, ’scope BW = 20 MHz)
87
82
77
VIN = 14 V
VIN = 12 V
VIN = 6 V
Efficiency (%)
72
67
62
57
52
47
42
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Output Current (Amps)
LSM2-T/30-D12R Maximum Current Temperature Derating
(Vin= 12V, Transverse Airflow). Extra ground pads installed.
Power-On Startup (Vin = 12 V, Iout = 30 A)
31.00
300 LFM
400 LFM
30.00
29.00
Output Current (Amps)
28.00
27.00
26.00
25.00
24.00
23.00
Natural Convection
100 LFM
200 LFM
22.00
21.00
20.00
19.00
18.00
17.00
16.00
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Ambient Temperature (°C)
StepLoad Transient Response (Vin = 12 V, 0-15A-0)
www.murata-ps.com
Technical enquiries email: [email protected], tel: +1 508 339 3000
MDC_LSM2_T30_D12 Series.B11 Page 11 of 12
LSM2-T/30-D12 Series
DOSA-SMT, 30A POL DC/DC Converters
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: [email protected] ISO 9001 REGISTERED
08/19/08
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice. © 2008 Murata Power Solutions, Inc.
www.murata-ps.com
USA:
Mansfield (MA), Tel: (508) 339-3000, email: [email protected]
Canada:
Toronto, Tel: (866) 740-1232, email: [email protected]
UK:
Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected]
France:
Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected]
Germany:
München, Tel: +49 (0)89-544334-0, email: [email protected]
Japan:
Tokyo, Tel: 3-3779-1031, email: [email protected]
Osaka, Tel: 6-6354-2025, email: [email protected]
China:
Shanghai, Tel: +86 215 027 3678, email: [email protected]
Guangzhou, Tel: +86 208 221 8066, email: [email protected]
Singapore:
Parkway Centre, Tel: +65 6348 9096, email: [email protected]
Technical enquiries email: [email protected], tel: +1 508 339 3000
MDC_LSM2_T30_D12 Series.B11 Page 12 of 12
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