LSN2-T/30-D12 Series www.murata-ps.com DOSA-SIP, 30A POL DC/DC Converters DESCRIPTION LSN2-T/30-D12 is an open-frame SIP These miniature point-of-load (POL) switching using advanced surface mount (SMT) DC/DCs are an ideal regulation and supply ele- assembly and test techniques. The extraor- ment for mixed voltage systems. The converter dinary performance is achieved with a fully is fully compatible with the Distributed-power Typical unit synchronous xed-frequency buck topology OpenStandards Alliance speci cation delivering high ef ciency, tight line/load (www.dosapower.com). LSN2-T/30-D12 can power CPUs, programmable logic and mixed regulation, stable no-load operation and no voltage systems with little heat and low noise. output reverse conduction. FEATURES A typical application uses a master isolated Output voltage, selected with an Standard (DOSA compatible) SIP package 12V DC supply and the LSN2-T/30-D12 con- external programming resistor or DC volt- User-selectable outputs: 0.8 to 5Vdc verter for local 1.8V and 3.3V DC supplies. age into the trim pin, means OEMs can 30 Amps maximum output current All system isolation resides in the central stock one model for multiple applications. supply, leaving lower cost POL regulation Also included are protection for out-of- Meets RoHS-6 standards right at the load. Unlike linear regulators, the limit voltages, currents and temperature. Selectable phased start-up sequencing, LSN2-T/30-D12 can deliver very high power Other functions: a remote On/Off control, tracking and pre-bias operation (up to 150W) in a tiny area with no heat sink- optional Power Good output, a phased Wide range input voltages 6 to 14Vdc ing and no external components needed. The start-up sequence and tracking system, To 150W with overtemperature shutdown converter features quick transient response and a load Sense input. Very high ef ciency up to 94% (to 25sec) and very fast current slew rates (to 20A/sec). Fast settling, high di/dt IOUT slew rate Meets UL 60950-1, CAN/CSA-C22.2 60950- 1, IEC 60950-1, EN60950-1 safety approvals, Contents Page 2nd edition Description, Photograph, Connection Diagram 1 Extensive self-protection with short circuit hiccup shutdown Ordering Guide, Model Numbering, Soldering Guidelines 2 Output overvoltage/overcurrent protection Mechanical Specs, Input/Output Pinout 3 Input under and overvoltage shutdown Detailed Electrical Speci cations 4 Technical Notes 5 Performance Data 13 +OUTPUT +INPUT 10.57 +SENSE COMMON COMMON VCC PWM CURRENT CONTROLLER ON/OFF SENSE CONTROL POWER GOOD OUTPUT REFERENCE & VTRACK/SEQUENCE ERROR AMP VOUT INPUT TRIM Typical topology is shown. Only one phase of two is shown. Figure 1. LSN2 -T/30-D12 Series Simpli ed Schematic For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC LSN2-T/30-D12 Series.C01 Page 1 of 16LSN2-T/30-D12 Series DOSA-SIP, 30A POL DC/DC Converters PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE Output Input Package R/N (mVp-p) Regulation (max.) Ef ciency VOUT IOUT Power VIN Nom. Range IIN (Case/ Model (Volts) (Amps) (Watts) Typ. Max. Line Load (Volts) (Volts) (mA/A) Min. Typ. Pinout) LSN2-T/30-D12-C 0.8-5 30 150 25 50 0.1% 0.1% 12 6-14 200/11.1 93% 94% B13, P71 Typical at TA = +25C under nominal line voltage and full-load conditions, unless noted. All These devices have no minimum-load requirements and will regulate under no-load conditions. models are tested and speci ed with external 22F tantalum input and output 0.01//0.1//10F Regulation speci cations 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 speci ed performance in your applications. See I/O Filtering and Nominal line voltage, no-load/full-load conditions. OUT. Noise Reduction. LSN2-T/30-D12 ef ciencies are shown at 5V OUT > 3.63V and may be OUT 3.63V. For VOUT > 3.63V, the input range is 714V. Ripple/Noise (R/N) is tested/speci ed over a 20MHz bandwidth for V Input range is 6-14V if V reduced with external ltering. See I/O Filtering and Noise Reduction for details. Please refer to the Part Number Structure for additional options when ordering. PART NUMBER STRUCTURE L SN2 - T / 30--D12 G C RoHS-6 hazardous substance compliant Output Con guration: (does not claim EU RoHS exemption 7blead in solder) L = Unipolar Low Voltage Power Good: Blank = Omitted (default) G = Installed (special quantity orders required) Non-Isolated Through-hole Nominal Output Voltage: 0.8-5 Volts Input Voltage Range: Note: Maximum Rated Output D12 = 7-14 Volts (12V nominal) Some model number combina- Current in Amps tions may not be available. Contact Murata Power Solutions. SOLDERING GUIDELINES Murata Power Solutions recommends the speci cations below when installing these converters. These speci cations vary depending on the solder type. Exceeding these speci cations may cause damage to the product. Your production environment may differ therefore please thoroughly review these guidelines with your process engineers. Wave Solder Operations for through-hole mounted products (THMT) For Sn/Ag/Cu based solders: Maximum Preheat Temperature 115C. Maximum Pot Temperature 270C. Maximum Solder Dwell Time 7 seconds For Sn/Pb based solders: Maximum Preheat Temperature 105C. Maximum Pot Temperature 250C. Maximum Solder Dwell Time 6 seconds www.murata-ps.com/support MDC LSN2-T/30-D12 Series.C01 Page 2 of 16