Bel Power Solutions point-of-load converters are recommended for use with regulated bus converters in an Intermediate Bus Architecture (IBA). The YS05S16 non- isolated DC-DC converter delivers up to 16 A of output current in an industry-standard surface-mount package. Operating from a 3.0 5.5 V input, the YS05S16 converters are ideal choices for Intermediate Bus Architectures where Point-of-Load (POL) power delivery is generally a requirement. The converters provide an extremely tight regulated programmable output voltage from 0.7525 V to 3.63 V. The YS05S16 converters provide exceptional thermal performance, even in high temperature environments with minimal airflow. No derating is required up to 85 C, even without airflow at natural convection. This performance is RoHS lead-free solder and lead-solder-exempted accomplished through the use of advanced circuitry, products are available packaging, and processing techniques to achieve a design Delivers up to 16 A (58 W) possessing ultra-high efficiency, excellent thermal No derating up to 85 C management, and a very low-body profile. The low-body profile and the preclusion of heat sinks Surface-Mount package minimize impedance to system airflow, thus enhancing Industry-standard footprint and pinout cooling for both upstream and downstream devices. The Small size and low profile: 1.30 x 0.53 x 0.314 use of 100% automation for assembly, coupled with (33.02 x 13.46 x 7.98 mm) advanced power electronics and thermal design, results in Weight: 0.22 oz 6.12 g a product with extremely high reliability. Coplanarity less than 0.003, maximum Synchronous Buck Converter topology Start-up into pre-biased output Intermediate Bus Architectures No minimum load required Telecommunications Programmable output voltage via external resistor Data communications Distributed Power Architectures Operating ambient temperature: -40 C to 85 C Servers, Workstations Remote output sense Remote ON/OFF (positive or negative) Fixed-frequency operation High efficiency no heat sink required Reduces Total Solution Board Area Auto-reset output overcurrent protection Tape and Reel Packing Auto-reset overtemperature protection Compatible with Pick & Place Equipment High reliability, MTBF approx. 64.9 Million Hours Minimizes Part Numbers in Inventory calculated per Telcordia TR-332, Method I Case 1 All materials meet UL94, V-0 flammability rating Safety approved to UL/CSA 62368-1 and EN/IEC 62368-1 1. ELECTRICAL SPECIFICATIONS Conditions: TA = 25 C, Airflow = 300 LFM (1.5 m/s), Vin = 5 VDC, Vout = 0.7525 3.63 V, unless otherwise specified. PARAMETER NOTES MIN TYP MAX UNITS Absolute Maximum Ratings Input Voltage Continuous -0.3 6 VDC Operating Ambient Temperature -40 85 C Storage Temperature -55 125 C Feature Characteristics Switching Frequency Full Temperature Range 250 300 350 kHz 1 Output Voltage Trim Range By external resistor, See Trim Table 1 0.7525 3.63 VDC 1 Remote Sense Compensation Percent of VOUT(NOM) 0.5 VDC 2 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 3.5 4.5 ms With Enable (Vin = Vin(nom) applied, then enabled) From enable to Vo = 0.1*Vo(nom) 3 3.5 4.5 ms 2 Rise time From 0.1*Vo(nom) to 0.9*Vo(nom) 3 3.5 5 ms Converter Off -5 0.8 VDC 3 ON/OFF Control (Positive Logic) Converter On 2.4 5.5 VDC Converter Off 2.4 5.5 VDC 3 ON/OFF Control (Negative Logic) Converter On -5 0.8 VDC Input Characteristics Operating Input Voltage Range 3.0 5.0 5.5 VDC Input Undervoltage Lockout Turn-on Threshold Guaranteed by controller 1.95 2.05 2.15 VDC Turn-off Threshold Guaranteed by controller 1.73 1.9 2.07 VDC Maximum Input Current V = 4.5 VDC, I = 16 A V = 3.3 VDC 12.7 ADC IN OUT OUT VIN = 3.0 VDC, IOUT = 16 A VOUT = 2.5 VDC 15.2 ADC V = 3.0 VDC, I = 16 A V = 2.0 VDC 12.4 ADC IN OUT OUT VIN = 3.0 VDC, IOUT = 16 A VOUT = 1.8 VDC 11.3 ADC V = 3.0 VDC, I = 16 A V = 1.5 VDC 9.7 ADC IN OUT OUT VIN = 3.0 VDC, IOUT = 16 A VOUT = 1.2 VDC 8.1 ADC V = 3.0 VDC, I = 16 A V = 1.0 VDC 7.0 ADC IN OUT OUT VIN = 3.0 VDC, IOUT = 16 A VOUT = 0.7525 VDC 5.7 ADC Input Stand-by Current (Converter disabled) Vin = 5.0 VDC 3.5 mA Input No Load Current (Converter enabled) Vin = 5.5 VDC V = 3.3 VDC 91 mA OUT VOUT = 2.5 VDC 91 mA V = 2.0 VDC 87 mA OUT VOUT = 1.8 VDC 86 mA V = 1.5 VDC 85 mA OUT VOUT = 1.2 VDC 76 mA V = 1.0 VDC 76 mA OUT VOUT = 0.7525 VDC 61 mA Input Reflected-Ripple Current - i See Fig. G for setup (BW = 20 MHz) 20 mA s P-P +1 866 513 2839 tech.support psbel.com 2015 Bel Power Solutions, Inc. BCD.00704 AA1