The YNM12S05 converter is not recommended for new designs and has been replaced by the YM12S05. Please refer to the YM12S05 data sheet for new product specifications. Bel Power Solutions point-of-load converters are recommended for use with regulated bus converters in an Intermediate Bus Architecture (IBA). The YNM12S05 non- isolated DC-DC converters deliver up to 5 A of output current in an industry-standard surface-mount package. Operating from a 9.6 to 14 VDC input, the YNM12S05 converters are ideal choices for Intermediate Bus Architectures where Point-of-Load power (POL) delivery is generally a requirement. They provide an extremely tight regulated, programmable output voltage of 0.7525 to 5.5 VDC. The YNM12S05 converters provide exceptional thermal performance, even in high temperature environments with RoHS lead-free solder and lead-solder-exempted products are available even without airflow at Delivers up to 5 A (28 W) natural convection. This performance is accomplished through the use of advanced circuitry, packaging, and Extended input range 9.6 to 14 VDC processing techniques to achieve a design possessing ultra- No derating up to 85 C (70 C for 5 V and 3.3 V) high efficiency, excellent thermal management, and a very Surface-mount package low-body profile. Industry-standard footprint and pinout The low-body profile and the preclusion of heat sinks Small size and low-profile: 0.80 x 0.45 x 0.247 minimize impedance to system airflow, thus enhancing (20.32 mm x 11.43 mm x 6.27 mm) cooling for both upstream and downstream devices. The use Weight: 0.08 oz 2.26 g of 100% automation for assembly, coupled with advanced Co-planarity < 0.003 power electronics, and thermal design, results in a product Synchronous Buck Converter topology with extremely high reliability. Start-up into pre-biased output No minimum load required Programmable output voltage via external resistor Intermediate Bus Architectures Operating ambient temperature: -40 C to 85 C Telecommunications Data communications Remote ON/OFF Distributed Power Architectures Fixed-frequency operation Servers, Workstations Auto-reset output overcurrent protection Auto-reset overtemperature protection High efficiency no heat sink required High reliability, MTBF = 71.8 million hours Reduces Total Solution Board Area calculated per Telcordia TR-332, Method I Case 1 Tape and Reel packing All materials meet UL94, V-0 flammability rating Compatible with Pick & Place Equipment Approved to the latest edition and amendment of ITE Minimizes Part Numbers in Inventory Safety standards, UL/CSA 60950-1 and IEC60950-1 North America +1 866 513 2839 Asia-Pacific +86 755 29885888 Europe, Middle East +353 61 225 977 tech.support psbel.com 2015 Bel Power Solutions, Inc. BCD.00698 AA END OF LIFEYNM12S05 1. ELECTRICAL SPECIFICATIONS Conditions: T = 25 C, Airflow = 300 LFM (1.5 m/s), Vin = 12 VDC, Vout = 0.7525 - 5.5 VDC, unless otherwise specified. A PARAMETER NOTES MIN TYP MAX UNITS Absolute Maximum Ratings Input Voltage Continuous -0.3 15 VDC Operating Ambient Temperature -40 85 C Storage Temperature -55 125 C Feature Characteristics Switching Frequency 480 kHz 1 Output Voltage Trim Range By external resistor, See Trim Table 1 0.7525 5.5 VDC Turn-On Delay Time Full resistive load With Vin (Converter Enabled, From Vin = Vin(min) to Vo = 0.1* Vo(nom) 7.5 ms then Vin applied) With Enable (Vin = Vin(nom) applied, then enabled) From enable to Vo = 0.1*Vo(nom) 7.5 ms Rise time (Full resistive load) From 0.1*Vo(nom) to 0.9*Vo(nom) 7 ms Converter Off 2.4 Vin VDC 2 ON/OFF Control Converter On -5 0.8 VDC Input Characteristics Operating Input Voltage Range 9.6 12 14 VDC Turn-on Threshold 9.2 VDC Input Under Voltage Lockout Turn-off Threshold 8.4 VDC Maximum Input Current 5 ADC Out 9.6 VDC In V = 5.0 VDC 2.9 ADC OUT V = 3.3 VDC 2.0 ADC OUT V = 2.5 VDC 1.6 ADC OUT VOUT = 2.0 VDC 1.4 ADC VOUT = 1.8 VDC 1.25 ADC VOUT = 1.5 VDC 1.0 ADC VOUT = 1.2 VDC 0.8 ADC V = 1.0 VDC 0.7 ADC OUT Input Stand-by Current (Converter disabled) 2.8 mA Input No Load Current (Converter enabled) V = 5.0 VDC 85 mA OUT V = 3.3 VDC 65 mA OUT V = 2.5 VDC 55 mA OUT V = 2.0 VDC 45 mA OUT V = 1.8 VDC 40 mA OUT VOUT = 1.5 VDC 35 mA VOUT = 1.2 VDC 30 mA VOUT = 1.0 VDC 27 mA Input Reflected-Ripple Current - is See Fig. D for setup. (BW = 20 MHz) V = 5.0 VDC 53 mA OUT P-P V = 3.3 VDC 44 mA OUT P-P VOUT = 2.5 VDC 39 mAP-P VOUT = 2.0 VDC 36 mAP-P VOUT = 1.8 VDC 35 mAP-P VOUT = 1.5 VDC 32 mAP-P VOUT = 1.2 VDC 29 mAP-P V = 1.0 VDC 27 mA OUT P-P Input Voltage Ripple Rejection 120 Hz 72 dB +1 866 513 2839 tech.support psbel.com 2015 Bel Power Solutions, Inc. BCD.00698 AA END OF LIFE