LSM-16A D12 Models www.murata-ps.com Non-Isolated, 13-80W SMT DC/DC Converters Typical Unit FEATURES PRODUCT OVERVIEW Step-down buck regulators for new LSM Series D12 SMTs (surface-mount pack- noise (50mVp-p typ.), tight line/load regulation distributed 12V power architectures ages) are ideal building blocks for emerging, (0.1%/0.25% max.), quick step response on-board power-distribution schemes in which (100sec), stable no-load operation, and no 12V input (10-14V range) isolated 12V buses deliver power to any num- output reverse conduction. 0.75/1/1.2/1.5/1.8/2/2.5/3.3/5VOUT 16A ber of non-isolated, step-down buck regulators. The fully functional LSMs feature output Non-isolated, xed-frequency, LSM D12 DC/DCs accept a 12V input (10V to overcurrent detection, continuous short-circuit synchronous-recti er topology 14V input range) and convert it, with the highest protection, over-temperature protection, a ef ciency in the smallest space, to a 0.75, 1, remote on/off control pin (pull low to disable), Tape and reel SMT package 1.2, 1.5, 1.8, 2, 2.5, 3.3 or 5 Volt output fully an output-voltage trim function, and a sense 1.25% setpoint accuracy rated at 16 Amps. pin. High ef ciency enables the LSM D12s to Ef ciencies to 96% 16 Amps LSM D12s are ideal point-of-use/load power deliver rated output currents of 16 Amps at processors. They typically require no external ambient temperatures to +65C with 100 lfm Noise as low as 50mVp-p components. Their surface-mount packages air ow. Stable no-load operation occupy a mere 1.3 x 0.53 (33.0 x 13.5mm), If your new system boards call for multiple Remote on/off control and are only 0.34 inches (8.6mm) high. supply voltages, check out the economics of Sense pin and output voltage trim The LSMs best-in-class power density on-board 12V distributed power. If you dont is achieved with a fully synchronous, xed- need to pay for multiple isolation barriers, No derating to +65C with 200 lfm frequency, buck topology that also delivers: Murata Power Solutions non-isolated LSM D12 Designed to meet UL/IEC/EN60950-1 high ef ciency (95% for 5VOUT models), low SMTs will save you money. safety EMC compliant +OUTPUT +INPUT (4) (2) +SENSE (6) COMMON COMMON (3) (3) CURRENT SENSE VCC PWM ON/OFF REFERENCE & CONTROLLER CONTROL VOUT ERROR AMP (1) TRIM (5) Typical topology is shown Figure 1. Simpli ed Schematic For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC LSM 16A D12 Models.B01 Page 1 of 12LSM-16A D12 Models Non-Isolated, 13-80W SMT DC/DC Converters Performance Speci cations and Ordering Guide ORDERING GUIDE Output Input Ef ciency (Full Load) Package VIN = nom. VIN = min R/N (mVp-p) Regulation (Max.) VOUT IOUT VIN Nom. Range IIN (Case, Models (Volts) (Amps) Typ. Max. Line Load (Volts) (Volts) (mA/A) Min. Typ. Typ. Pinout) LSM-0.75/16-D12 0.75 16 50 75 0.1% 0.375% 12 10-14 35/1.26 83% 85% 86% C45, P63 LSM-1/16-D12 1 16 50 75 0.1% 0.25% 12 10-14 35/1.57 83% 85% 86% C45, P63 LSM-1.2/16-D12 1.2 16 50 75 0.1% 0.25% 12 10-14 40/1.84 85% 87% 88% C45, P63 LSM-1.5/16-D12 1.5 16 50 75 0.1% 0.25% 12 10-14 50/2.26 86.5% 88.5% 89.5% C45, P63 LSM-1.8/16-D12 1.8 16 50 75 0.1% 0.25% 12 10-14 55/2.67 88% 90% 91% C45, P63 LSM-2/16-D12 2 16 50 75 0.1% 0.25% 12 10-14 55/2.93 89% 91% 91.5% C45, P63 LSM-2.5/16-D12 2.5 16 50 75 0.1% 0.25% 12 10-14 75/368 88.5% 90.5% 91.5% C45, P63 LSM-3.3/16-D12 3.3 16 50 75 0.1% 0.25% 12 10-14 70/4.68 92% 94% 94.5% C45, P63 LSM-5/16-D12 5 16 75 100 0.1% 0.25% 12 10-14 85/7.06 92.5% 94.5% 95.5% C45, P63 LSM-T/16-D12 0.75-5 16 50 75 0.1% 0.25% 12 10-14 85/7.02 93% 95% 95.5% C45, P63 Typical at TA = +25C under nominal line voltage and full-load conditions, 200 lfm air ow for These devices have no minimum-load requirements and will regulate under no-load conditions. extended operation, unless otherwise noted. All models are tested and speci ed with external Regulation speci cations describe the output-voltage deviation as the line voltage or load is varied 22F tantalum input and output capacitors. These capacitors are necessary to accommodate our from its nominal/midpoint value to either extreme. test equipment and may not be required to achieve speci ed performance in your applications. Nominal line voltage, no-load/full-load conditions. See I/O Filtering and Noise Reduction. RoHS6 compliance does not claim EU RoHS exemption 7blead in solder. Ripple/Noise (R/N) is tested/speci ed over a 20MHz bandwidth and may be reduced with external ltering. See I/O Filtering and Noise Reduction for details. Part Number Structure Mechanical Specifications 1.30 L SM - 1.8 / 16- D12 C - (33.02) Dimensions are in inches (mm) shown for ref. only. Output RoHS6 hazardous substance Third Angle Projection Con guration: compliant* 0.34 L = Unipolar Input Voltage Range: (8.64) Low Voltage D12 = 10 to 14 Volts (12V nominal) Non-Isolated SMT Tolerances (unless otherwise specied): Maximum Rated Output .XX 0.02 (0.5) 0.085 SMT COPPER LEADS .XXX 0.010 (0.25) Nominal Output Voltage: Current in Amps (2.16) COPLANAR 0.004 Angles 2 0.75, 1, 1.2, 1.5, 1.8, 2, 2.5, 3.3 or 5 Volts Components are shown for reference only. 0.570 (14.48) * Contact Murata Power Solutions for Case C45 Note: Not all model number combinations 0.310 3 EQ. SP. availability. are available. Contact MPS. (7.87) 0.190 (4.83) 1.36 (34.54) 3 4 5 6 0.53 0.062 0.48 (13.46) (1.57) 0.55 (12.19) (13.97) 2 1 TYP. BOTTOM VIEW 0.05 0.075 0.60 (1.27) (1.91) 0.010 (15.24) 0.112 (0.254) 0.570 (14.48) (2.84) 1.177 3EQ.SP. 0.048 TYP. 0.190 (4.83) (29.90) (1.22) 0.310 0.375 0.052 NOTCH IN SHELL (7.87) (9.53) (1.32) INDICATES PIN ONE 0.570 (14.48) 0.297 3 EQ. SP. 0.310 345 6 (7.54) 0.190 (4.83) (7.87) I/O Connections 2 1 0.062 Pin Function P63 (1.57) 1 On/Off Control 0.112 TY P. 6 5 4 3 0.047 2 +Input (2.84) 0.405 0.430 (1.19) 0.052 3 Common 0.049 (10.29) (10.92) (1.32) (1.24) BOTTOM VIEW CAUTION 2 4 +Output 1 PRESS TO REMOVE 5 VOUT Trim THE HEAT SHIELD LSM WITH REMOVABLE HEAT SHIELD AFTER THE SOLDER 6 +Sense FOR HIGH TEMPERATURE SOLDER RECOMMENDED PAD LAYOUT PROCESS Recommended Pad Size: 0.15 x 0.10 (3.81 x 2.54) NOTCH IN SHELL INDICATES PIN ONE www.murata-ps.com/support MDC LSM 16A D12 Models.B01 Page 2 of 12