OKY T/3, T/5-W5 Series www.murata-ps.com Adjustable Output 3 and 5-Amp DOSA-SMT PoLs PRODUCT OVERVIEW The OKY-T/3 and -T/5 series are miniature non- frequency synchronous buck converter switching isolated Point-of-Load (POL) switch mode DC/DC topology, the high power conversion ef cient Point power converters for embedded applications. The of Load (POL) module features programmable module is fully compatible with Distributed-power output voltage and On/Off control. These converters Open Standards Alliance (DOSA) industry-standard also include under voltage lock out (UVLO), output speci cations (www.dosapower.com). Applications short circuit protection, over-current and over include powering CPUs, datacom/telecom systems, temperature protections. programmable logic and mixed voltage systems. These units are designed to meet all standard The wide input range is 2.4 to 5.5 Volts DC. Two UL/EN/IEC 60950-1 safety and FCC EMI/RFI TTypical unitypical unit maximum output currents are offered, 3 Amps (T/3 emissions certi cations and RoHS-6 hazardous models) or 5 Amps (T/5 models). Based on xed- substance compliance. FEATURES Non-isolated SMT POL DC/DC power module 2.4-5.5Vdc input voltage range Programmable output voltage from 0.7525-3.63Vdc 3 Amp (T/3) or 5 Amp (T/5) output current models Contents Page Drives 1000 F ceramic capacitive loads Description, Connection Diagram, Photograph 1 Ordering Guide, Model Numbering, Product Label 2 High power conversion ef ciency at 96% Mechanical Speci cations, Input/Output Pinout 3 Outstanding thermal derating performance Detailed Electrical Speci cations 4 Over temperature and over current protection Output Voltage Adjustment, Soldering Guidelines 5 On/Off control Technical Notes 6 UL/EN/IEC 60950-1 safety OKY-T/3-W5 Performance Data and Oscillograms 9 OKY-T/5-W5 Performance Data and Oscillograms 13 Industry-standard (DOSA) surface-mount package Tape and Reel Information 19 RoHS-6 hazardous substance compliance Connection Diagram +Vin +Vout t 4XJUDIJOH F1 On/Off Control t JMUFST Controller t VSSFOU 4FOTF External Trim DC Power Reference and Open = On Source Error Amplier Closed = Off (Positive On/Off) Common Common Figure 1. OKY-T/3, -T/5 Note: Murata Power Solutions strongly recommends an external input fuse, F1. See speci cations. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC OKY-T/3,T/5-W5 Series.A12 Page 1 of 19OKY T/3, T/5-W5 Series Adjustable Output 3 and 5-Amp DOSA-SMT PoLs Performance Speci cations Summaryand Ordering Guide ORDERING GUIDE Output Input Package IOUT R/N (mVp-p) Regulation (Max.) IIN, IIN, Ef ciency VOUT (Amps Power VIN Nom. Range no load full load Root Model (Volts) max) (Watts) Max. Line Load (Volts) (Volts) (mA) (Amps) Min. Typ. Case C72 Pinout 0.47 x 0.82 x 0.28 OKY-T/3-W5N-C 0.7525-3.63 3 9.9 20 0.2% 1.5% 5 2.4-5.5 45 2.1 92% 94.4% P78 (11.9 x 20.8 x 7.0) 0.47 x 0.82 x 0.28 OKY-T/3-W5P-C 0.7525-3.63 3 9.9 20 0.2% 1.5% 5 2.4-5.5 45 2.1 92% 94.4% P78 (11.9 x 20.8 x 7.0) 0.47 x 0.82 x 0.28 OKY-T/5-W5N-C 0.7525-3.63 5 16.5 20 0.2% 1% 5 2.4-5.5 35 3.5 92% 96% P78 (11.9 x 20.8 x 7.0) 0.47 x 0.82 x 0.28 OKY-T/5-W5P-C 0.7525-3.63 5 16.5 20 0.2% 1% 5 2.4-5.5 35 3.5 92% 96% P78 (11.9 x 20.8 x 7.0) Dimensions are in inches (mm). Vin must be 0.5V or higher than Vout. These are partial model numbers. Please refer to the part number structure for complete ordering part numbers. Ripple and Noise is shown at Vout=1V. All specifications are at nominal line voltage, Vout=nominal (3.3V) and full load, +25 C. unless otherwise noted. Output capacitors are 1 F ceramic and 10 F electrolytic in parallel. Input cap is 22 F. See detailed specifications. I/O caps are necessary for our test equipment and may not be needed for your application. PART NUMBER STRUCTURE OK Y-/T 3 - W5 N - C Okami Non-isolated PoL RoHS Hazardous Substance Compliance C = RoHS-6 (does not claim EU RoHS exemption 7blead in solder) Surface Mount On/Off Polarity P = Positive Polarity N = Negative Polarity Trimmable Output Voltage Range Note: Some model number combinations 0.75-3.63V may not be available. Contact Murata Input Voltage Range Power Solutions for availability. 2.4-5.5V Maximum Rated Output Current in Amps Product Label Because of the small size of these products, the product label contains a Model Number Product Code character-reduced code to indicate the model number and manufacturing date OKY-T/3-W5N-C Y00003 code. Not all items on the label are always used. Please note that the label dif- OKY-T/3-W5P-C Y01003 fers from the product photograph on page 1. Here is the layout of the label: OKY-T/5-W5N-C Y00005 OKY-T/5-W5P-C Y01005 Y01003 Product code Mfg. The manufacturing date code is four characters: date YMDX Rev. Revision level code First character Last digit of manufacturing year, example 2009 Figure 2. Label Artwork Layout Second character Month code (1 through 9 and O through D) Third character Day code (1 through 9 = 1 to 9, 10 = O and The label contains three rows of information: 11 through 31 = A through Z) Fourth character Manufacturing information First row Murata Power Solutions logo Second row Model number product code (see table) Third row Manufacturing date code and revision level www.murata-ps.com/support MDC OKY-T/3,T/5-W5 Series.A12 Page 2 of 19