LAST TIME BUY: 3/31/2015. CLICK HERE FOR OBSOLESCENCE NOTICE OF 10/31/2014. Single Output LSN-W3 Models www.murata-ps.com Non-Isolated, 3-5.5Vin , 0.75-3.3Vout 16 Amp DC/DC Converters Typical unit FEATURES PRODUCT OVERVIEW n Step-down, wide input buck regulators LSN Series W3 are ideal building blocks for emerg- (30mVp-p typ.), tight line/load regulation for distributed 3-5V power architectures ing, on-board power-distribution schemes in which (0.1%/0.25% max.), quick step response isolated 3 to 5.5V buses deliver power to any num- (30sec), stable no-load operation, and no n 3V to 5.5V wide-input range ber of non-isolated, step-down buck regulators. output reverse conduction. n 0.75/1/1.2/1.5/1.8/2/2.5/3.3VOUT 16A LSN W3 DC/DCs accept 3 to 5.5 Volts and convert The fully functional LSNs feature output over- n Non-isolated, fixed-frequency, it, with the highest efficiency in the smallest space, current detection, continuous short-circuit protec- synchronous-rectifier topology to a 0.75, 1, 1.2, 1.5, 1.8, 2, 2.5, or 3.3 Volt output tion, over-temperature protection, a remote on/off fully rated at 16 Amps. control pin (pull low to disable), an output-voltage n 1% setpoint accuracy LSN W3s are ideal point-of-use/load power trim function, and a sense pin. High efficiency en- n Efficiencies to 95% 16 Amps processors. They typically require no external com- ables the LSN W3s to deliver rated output currents n Noise as low as 30mVp-p ponents. Their surface-mount packages occupy a of 16 Amps at ambient temperatures to +65C n mere 1.3 x 0.53 (33.0 x 13.5mm), and are only with natural convection. Stable no-load operation 0.34 inches (8.6mm) high. If your new system boards call for multiple sup- n Remote on/off control The LSNs best-in-class power density ply voltages, check out the economics of on-board n Sense pin and output voltage trim is achieved with a fully synchronous, fixed- 3-5.5V distributed power. If you dont need to pay n No derating to +65C with no fan frequency, buck topology that also delivers: for multiple isolation barriers, DATELs non-isolated high efficiency (97%, 3.3Vout, 8A), low noise LSN W3 SMTs will save you money. n UL/IEC/EN60950-1 certification pending n EMC compliant +INPUT +OUTPUT (1, 2) (7, 8) +SENSE (3) COMMON COMMON (5, 6) (5, 6) CURRENT SENSE VCC PWM ON/OFF REFERENCE & CONTROLLER CONTROL VOUT ERROR AMP (11) TRIM (10) Typical topology is shown. For full details go to www.murata-ps.com/rohs Figure 1. Simplified Schematic www.murata-ps.com/support MDC LSN W3 Models.C01 Page 1 of 9Single Output LSN-W3 Models Non-Isolated, 3-5.5Vin , 0.75-3.3Vout 16 Amp DC/DC Converters Performance Specifications and Ordering Guide ORDERING GUIDE Output Input Efficiency (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) LSN-0.75/16-W3 0.75 16 30 50 0.1% 0.25% 5 3-5.5 70/2.79 84% 86% 86.5% B8/B8x, P59 LSN-1/16-W3 1 16 30 50 0.1% 0.25% 5 3-5.5 70/3.72 84% 86% 86.5% B8/B8x, P59 LSN-1.2/16-W3 1.2 16 30 50 0.1% 0.25% 5 3-5.5 70/4.36 86% 88% 88.5% B8/B8x, P59 LSN-1.5/16-W3 1.5 16 30 50 0.1% 0.25% 5 3-5.5 70/5.33 88% 90% 90.5% B8/B8x, P59 LSN-1.8/16-W3 1.8 16 30 50 0.1% 0.25% 5 3-5.5 70/6.30 89.5% 91.5% 92% B8/B8x, P59 LSN-2/16-W3 2 16 30 50 0.1% 0.25% 5 3-5.5 70/6.92 90.5% 92.5% 92.5% B8/B8x, P59 LSN-2.5/16-W3 2.5 16 30 50 0.1% 0.25% 5 3-5.5 70/8.56 91.5% 93.5% 94% B8/B8x, P59 LSN-3.3/16-W3 3.3 16 30 50 0.1% 0.25% 5 3-5.5 50/11.12 93% 95% 95% B8/B8x, P59 LSN-T/16-W3 0.75-3.3 16 30 50 0.05% 0.15% 5 3-5.5 50/11.12 93% 95% 95% B8/B8x, P59 To Be Discontinued* LSN-T/16-W3HHL2-Y 0.75-3.3 16 30 50 0.05% 0.15% 5 3-5.5 50/11.12 93% 95% 95% B8/B8x, P59 To Be Discontinued* LSN-T/16-W3HHL2-C-HW 0.75-3.3 16 30 50 0.05% 0.15% 5 3-5.5 50/11.12 93% 95% 95% B8/B8x, P59 *LAST TIME BUY: 3/31/2015. CLICK HERE FOR OBSOLESCENCE NOTICE OF 10/31/2014. Typical at Ta = +25C under nominal line voltage and full-load conditions, unless noted. All models These devices have no minimum-load requirements and will regulate under no-load conditions. are tested/specified with external 22F tantalum input and output capacitors. These capacitors Regulation specifications describe the output-voltage deviation as the line voltage or load is varied are necessary to accommodate our test equipment and may not be required to achieve specified from its nominal/midpoint value to either extreme. performance in your applications. See I/O Filtering and Noise Reduction. Nominal line voltage, no-load/full-load conditions. Ripple/Noise (R/N) is tested/specified over a 20MHz bandwidth and may be reduced with external Vin = 4.5 Volts minimum for Vout = 3.3 Volts. filtering. See I/O Filtering and Noise Reduction for details. Unless noted, LSN-T/16-W3 specifications are at 3.3V out . PART NUMBER STRUCTURE PART NUMBER STRUCTURE L SN - 1.8 / 16 - W3 H - C Output Configuration: RoHS-6 compliant* L = Unipolar Blank = Vertical Mount Low Voltage H = Horizontal Mount J = Reversed Pin Non-Isolated SIP Vertical Mount Nominal Output Voltage: Input Voltage Range: 0.75, 1, 1.2, 1.5, 1.8, 2, 2.5, 3.3 W3 = 3-5.5 Volts or 0.75-3.3 Volts (5V nominal) Maximum Rated Output Current in Amps Note: Not all model number combinations are available. * Contact MPS for availability. Contact MPS. www.murata-ps.com/support MDC LSN W3 Models.C01 Page 2 of 9