The YNS12S10 converter is not recommended for new designs and has been replaced by the YS12S10. Please refer to the YS12S10 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 Y-Series of non- isolated DC-DC converters deliver up to 10 A of output current in an industry-standard surface-mount package. Operating from a 9.6 to 14 VDC input, the YNS12S10 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. RoHS lead free and lead-solder-exempt products The Y-Series of converters provide exceptional thermal are available performance, even in high temperature environments with Delivers up to 10 A (55 W) minimal airflow. No derating is required up to 85 C (up to 70 C for 5 VDC output), even without airflow at natural Extended input range 9.6 to 14 VDC convection. This performance is accomplished through the No derating up to 85 C (70 C for 5 VDC) use of advanced circuitry, packaging, and processing Surface-mount package techniques to achieve a design possessing ultra-high Industry-standard footprint and pinout efficiency, excellent thermal management, and a very Small size and low-profile: 1.30 x 0.53 x 0.314 low-body profile. (33.02 mm x 13.46 mm x 7.98 mm) The low-body profile and the preclusion of heat sinks Weight: 0.22 oz 6.12 g minimize impedance to system airflow, thus enhancing Co-planarity < 0.003 cooling for both upstream and downstream devices. The Synchronous Buck Converter topology use of 100% automation for assembly, coupled with Start up into pre-biased output advanced power electronics, and thermal design, results in No minimum load required a product with extremely high reliability. Programmable output voltage via external resistor Operating ambient temperature: -40 C to 85 C Remote output sense Intermediate Bus Architectures Remote ON/OFF (positive or negative) Telecommunications Data communications Fixed-frequency operation Distributed Power Architectures Auto-reset output overcurrent protection Servers, Workstations Auto-reset overtemperature protection High reliability, MTBF approx. 27.2 million hours High efficiency no heat sink required calculated per Telcordia TR-332, Method I Case 1 Reduces Total Solution Board Area All materials meet UL94, V-0 flammability rating Tape and Reel Packing UL60950 recognition in U.S. & Canada, and Compatible with Pick & Place Equipment DEMKO certification per IEC/EN60950 Minimizes Part Numbers in Inventory 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.00642 AA YNS12S10 DC-DC Converter Conditions: T = 25 C, Airflow = 300 LFM (1.5 m/s), Vin = 12 VDC, Vout = 0.7525 - 5.5 VDC, unless otherwise A specified. 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 300 kHz 1 Output Voltage Trim Range By external resistor, See Trim Table 1 0.7525 5.5 VDC 1 Remote Sense Compensation 0.5 VDC Turn-On Delay Time Full resistive load With Vin (Converter Enabled, then Vin applied) From Vin = Vin(min) to Vo = 0.1* Vo(nom) 3 ms With Enable (Vin = Vin(nom) applied, then enabled) From enable to Vo = 0.1*Vo(nom) 3 ms 2 Rise time (Full resistive load) From 0.1*Vo(nom) to 0.9*Vo(nom) 4 ms Converter Off -5 0.8 VDC 3 ON/OFF Control (Positive Logic) Converter On 2.4 Vin VDC Converter Off 2.4 Vin VDC 3 ON/OFF Control (Negative Logic) Converter On -5 0.8 VDC Input Characteristics Operating Input Voltage Range 9.6 12 14 VDC Input Under Voltage Lockout Turn-on Threshold 9.0 VDC Turn-off Threshold 8.5 VDC Maximum Input Current 10 ADC Out 9.6 VDC In V = 5.0 VDC 5.5 ADC OUT V = 3.3 VDC 3.7 ADC OUT V = 2.5 VDC 2.8 ADC OUT VOUT = 2.0 VDC 2.3 ADC VOUT = 1.8 VDC 2.1 ADC VOUT = 1.5 VDC 1.8 ADC VOUT = 1.2 VDC 1.5 ADC VOUT = 1.0 VDC 1.3 ADC VOUT = 0.7525 VDC 1.1 ADC Input Stand-by Current (Converter disabled) 5 mA Input No Load Current (Converter enabled) V = 5.0 VDC 76 mA OUT V = 3.3 VDC 60 mA OUT V = 2.5 VDC 45 mA OUT VOUT = 2.0 VDC 41 mA VOUT = 1.8 VDC 38 mA VOUT = 1.5 VDC 35 mA VOUT = 1.2 VDC 33 mA VOUT = 1.0 VDC 30 mA VOUT = 0.7525 VDC 28 mA Input Reflected-Ripple Current - i See Fig. D for setup. (BW = 20 MHz) s V = 5.0 VDC 36 mA OUT P-P V = 3.3 VDC 34 mA OUT P-P V = 2.5 VDC 32 mA OUT P-P V = 2.0 VDC 31 mA OUT P-P VOUT = 1.8 VDC 30 mAP-P 866.513.2839 tech.support psbel.com 2015 Bel Power Solutions, Inc. BCD.00642 AA