OKI-T/3-W40 Series www.murata-ps.com Adjustable Output 3-Amp DOSA-SMT DC/DC Converters TTypical unitypical unit FEATURES PRODUCT OVERVIEW The OKI-T/3 series are non-isolated Point-of- switching topology, the high power conversion Non-isolated SMT POL DC/DC power module Load (POL) DC/DC power converters for embedded ef cient Point of Load (POL) module features 16-40Vdc input voltage range applications. The module is fully compatible with programmable output voltage and On/Off control. Programmable output voltage from 0.7525-5.5Vdc Distributed-power Open Standards Alliance (DOSA) These converters also include under voltage lock 3 Amp output current models industry-standard speci cations (www.dosapower. out (UVLO), output short circuit protection, over- com). Applications include powering CPUs, indus- current and over temperature protections. Drives 1000 F ceramic capacitive loads trial 24V transducers and POS terminals. These units are designed to meet all standard High power conversion ef ciency 86% at 5 Vout The wide input range is 16 to 40 Volts DC. UL/EN/IEC 60950-1 safety certi cations (2nd Edition) Outstanding thermal derating performance The maximum output current is 3 Amps. Based and RoHS-6 hazardous substance compliance. Over temperature and over current protection on xed-frequency synchronous buck converter On/Off control UL/EN/IEC 60950-1 safety, 2nd Edition Industry-standard (DOSA) surface-mount package 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. OKI-T/3 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 OKI-T/3-W40 Series.A08 Page 1 of 13OKI-T/3-W40 Series Adjustable Output 3-Amp DOSA-SMT DC/DC Converters Performance Speci cations Summary and Ordering Guide ORDERING GUIDE Output Input Package, C72 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 0.82 x 0.47 x 0.34 OKI-T/3-W40N-C 0.7525-5.5 3 15 20 0.2% 0.25% 24 16-40 40 0.71 86.5% 88% P78 (20.8 x 11.9 x 8.5) 0.82 x 0.47 x 0.34 OKI-T/3-W40P-C 0.7525-5.5 3 15 20 0.2% 0.25% 24 16-40 40 0.71 86.5% 88% P78 (20.8 x 11.9 x 8.5) Dimensions are in inches (mm). Ripple/Noise is shown at Vout = 1V. These are partial model numbers. Please refer to the part number structure for complete ordering part numbers. No load input current is shown at Vout = 0.75V. All specifications are at nominal line voltage, Vout=nominal (5V for W40 models) and full load, +25 C. unless For Vout = 1V, Vin 32V. For Vout = 0.75V, Vin 24V. 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 I - T / 3 - W40 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 Logic P = Positive Logic N = Negative Logic Trimmable Output Voltage Range 0.7525-5.5V Input Voltage Range 16-40V Maximum Rated Output Note: Some model number combinations Current in Amps may not be available. Contact Murata Power Solutions for availability. 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 OKI-T/3-W40N-C I00103 code. Not all items on the label are always used. Please note that the label dif- OKI-T/3-W40P-C I01103 fers from the product photograph on page 1. Here is the layout of the label: The manufacturing date code is four characters: XXXXXX Product code First character Last digit of manufacturing year, example 2009 Mfg. date YMDX Rev. Revision level Second character Month code (1 through 9 and O through D) code Third character Day code (1 through 9 = 1 to 9, 10 = O and 11 through 31 = A through Z) Figure 2. Label Artwork Layout Fourth character Manufacturing information The label contains three rows of 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 OKI-T/3-W40 Series.A08 Page 2 of 13