LAST TIME BUY: 3/31/2015. CLICK HERE FOR OBSOLESCENCE NOTICE OF 10/31/2014. LSN-T/10-D12 www.murata-ps.com Single Adjustable Output, Non-isolated, 12Vin, 10A, SIP, DC/DC Converters High power density building blocks ideal for on-board power-distribution schemes in which isolated 12V buses Typical Units deliver power to any number of non-isolated, step-down buck regulators. FEATURES PRODUCT OVERVIEW n Step-down buck regulators for new distributed LSN D12 DC/DC s accept a 12V input (10-14V input for 5VOUT models), low noise (35mVp-p typ.), tight 12V power architectures range) and convert it, with the highest efficiency in line/load regulation, quick step response (50sec), the smallest space, to a 0.75 to 5 Volt output fully stable no-load operation, and no output reverse n 12V input (10-14V range) rated at 10 Amps. The output is user-adjustable by conduction. n 0.75-5VOUT 10 Amps trim resistor or adjustment voltage. The fully functional LSNs feature output n Non-isolated, fixed-frequency, synchronous- LSN D12 s are ideal point-of-use/load power overcurrent detection, continuous short-circuit rectifier topology processors. They typically require no external protection, an output-voltage trim function, a n Outstanding performance: components. Their vertical-mount packages remote on/off control pin, thermal shutdown and a Efficiencies to 96.5% 10 Amps occupy a mere 0.7 square inches (4.5 sq. cm), sense pin. High efficiency enables, the LSN D12 s to Low noise and reversed pin vertical mount allows mounting deliver rated output currents of 10 Amps at ambient Stable no-load operation to meet competitor s keep out area. Horizontal- temperatures to +85C with natural convection. Adjustable output voltage mount packages suffix) are only 0.35 inches If your new system boards call for three or more n Remote on/off control (8.89mm) high. supply voltages, check out the economics of n Sense pin on standard models The LSN s best-in-class power density is achieved on-board 12V distributed power. If you don t need n Thermal shutdown with a fully synchronous, fixed-frequency, buck to pay for multiple isolation barriers, Datel non- n No derating to +85C with 100 lfm topology that also delivers: high efficiency (96.5% isolated LSN D12 SIP s will save you money. n UL/IEC/EN60950 applied for n EMC compliant n Start up into pre-biased Load SIMPLIFIED SCHEMATIC +OUTPUT +INPUT (1,2,4) (7,8) 10 +SENSE (3) COMMON COMMON (6) (5) CURRENT SENSE VCC PWM ON/OFF REFERENCE & CONTROLLER CONTROL VOUT ERROR AMP (11) TRIM (10) For devices with the sense-pin removed suffix), the feedback path is through the +Output pin and not the +Sense pin. Typical topology is shown For full details go to www.murata-ps.com/rohs www.murata-ps.com/support LSN-T10-D12.D01 Page 1 of 12LSN-T/10-D12 Single Adjustable Output, Non-isolated, 12Vin, 10A, SIP, DC/DC Converters PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE Output Input Efficiency Package R/N (mVp-p) Regulation (Max.) Full Load VIN=10V VOUT IOUT VIN Nom. Range IIN (Case/ Typ. Max. Line Load Model (Volts) (Amps) (Volts) (Volts) (mA/A) Min. Typ. Typ. Pinout) LSN-T/10-D12 0.7525-5.5 10 35 55 0.06% 0.2% 12 10-14 80/4.32 95.5% 96.5% 97% B5/B5x, P59 To Be Discontinued* LSN-T/10-D12J-Y 0.7525-5.5 10 35 55 0.06% 0.2% 12 10-14 80/4.32 95.5% 96.5% 97% B5/B5x, P59 LSN-T/10-D12J-Y-CIS 0.7525-5.5 10 35 55 0.06% 0.2% 12 10-14 80/4.32 95.5% 96.5% 97% B5/B5x, P59 *LAST TIME BUY: 3/31/2015. CLICK HERE FOR OBSOLESCENCE NOTICE OF 10/31/2014. Typical at TA = +25C under nominal line voltage, VOUT = 5V, and full-load conditions, unless These devices have no minimum-load requirements and will regulate under no-load conditions. otherwise noted. All models are tested and specified with external 22 F tantalum input and output Regulation specifications describe the output-voltage deviation as the line voltage or load is capacitors. These capacitors are necessary to accommodate our test equipment and may not varied from its nominal/midpoint value to either extreme. be required to achieve specified performance in your applications. See I/O Filtering and Noise Nominal line voltage, no-load/full-load conditions. Reduction. This is not a complete model number. Please see the Part Number Structure when ordering. Ripple/Noise (R/N) is tested/specified over a 20MHz bandwidth and may be reduced with external filtering. See I/O Filtering and Noise Reduction for details. PART NUMBER STRUCTURE MECHANICAL SPECIFICATIONS - VERTICAL MOUNTING Case B5 - Vertical Mounting L SN - T / 10- D12 N H J - C 0.34 (Standard) (8.64) 2.00 0.20 Output (50.80) RoHS-6 Compliant (5.08) Configuration: J Suffix: 0.17 L = Unipolar 0.55 (4.32) Reversed Pin 1 2 3 4 5 6 7 8 9 10 11 (13.97) Low Voltage Vertical Mount Non-Isolated SIP Nominal Output Voltage: H Suffix: 0.110 0.030 0.001 DIA. 0.05 T = 0.75 - 5.25 Horizontal Mount (2.79) (0.762 0.025) (1.27) N Suffix: 0.400 1.000 0.500 0.046 Maximum Rated Output On/Off Polarity: (25.40) (10.16) (12.70) (1.17) 4 EQ. SP. 5 EQ. SP. Current in Amps Blank = Positive logic 0.100 (2.54) 0.100 (2.54) N = Negative logic Note: LAYOUT PATTERN 0.34 Input Voltage Range: (8.64) TOP VIEW Not all model number combinations D12 = 10-14 Volts 0.25 are available. Contact Murata Power (12V nominal) (6.35) Solutions. Case B5B - Reverse Pin Vertical Mounting (Tyco-compatible package) 0.36 MECHANICAL SPECIFICATIONS - HORIZONTAL MOUNTING (9.14) 2.00 0.20 (50.80) (5.08) 0.35 Case B5A - Horizontal Mounting (8.89) 2.00 0.17 0.55 0.21 (50.80) (4.32) (5.33) (13.97) 1 2 3 4 5 6 7 8 9 10 11 0.05 ISOLATING PAD (1.27) 0.55 (13.97) 1 2 3 4 5 6 7 8 9 10 11 0.046 0.030 0.001 DIA. 0.05 (1.17) (0.762 0.025) (1.27) 0.16 0.106 0.030 0.001 DIA. 0.05 (4.06) 0.400 1.000 0.500 (0.762 0.025) (2.69) (1.27) (25.40) (10.16) (12.70) 0.360 4 EQ. SP. 5 EQ. SP. 0.400 1.000 0.500 (9.14) 0.100 (2.54) 0.100 (2.54) (10.16) (25.40) (12.70) 4 EQ. SP. 5 EQ. SP. 0.100 (2.54) 0.100 (2.54) LAYOUT PATTERN 0.36 0.306 TOP VIEW (9.14) (7.8) 0.56 0.53 (14.22) (13.46) All dimension in Inches (mm) I/O Connections 0.55 0.50 (13.97) (12.7) Pin Function P59 Pin Function P59 Pin Function P59 1 +Output 5 Common 9 No Pin LAYOUT PATTERN 2 +Output 6 Common 10 VOUT Trim RECOMMENDED TOP VIEW COPPER PAD 3 +Sense 7 +Input 11 On/Off Control ON PCB (0.55 SQ. IN.) All dimension in Inches (mm) 4 +Output 8 +Input www.murata-ps.com/support LSN-T10-D12.D01 Page 2 of 12