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 www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 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) www.murata-ps.com 0.048 (1.22) Technical enquiries email: [email protected], tel: +1 508 339 3000 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. www.murata-ps.com 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) www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 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) www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 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 www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 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 www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 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 www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 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