The YNM05S05 is not recommended for new designs and has been replaced by the YM05S05. Please refer to the YM05S05 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 YNM05S05 non- isolated DC-DC converters deliver up to 5 A of output current in an industry-standard surface-mount package. Operating from a 3.0 5.5 V input, the YNM05S05 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 Y-Series of converters provide exceptional thermal performance, even in high temperature environments with minimal airfl RoHS lead-free solder and lead-solder-exempted products without airflow at natural convection. This performance is are available accomplished through the use of advanced circuitry, Delivers up to 5 A packaging and processing techniques to achieve a design possessing ultra-high efficiency, excellent thermal Surface-Mount package management, and a very 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 (20.32 mm minimize impedance to system airflow, thus enhancing x 11.43 mm x 6.27 mm) cooling for both upstream and downstream devices. The Weight: 0.08 oz 2.22 g use of 100% automation for assembly, coupled with Coplanarity less than 0.003, maximum advanced power electronics and thermal design, results in a product with extremely high reliability. Synchronous Buck Converter Topology Start up into pre-biased output No minimum load required Intermediate Bus Architectures Programmable output voltage via external resistor Telecommunications Operating ambient temperature: -40 C to 85 C 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 approx. 69 Million Hours Reduces Total Solution Board Area calculated per Telcordia TR-332, Method I Case 1 Tape and Reel packing Compatible with Pick & Place Equipment All materials meet UL94, V-0 flammability rating Minimizes Part Numbers in Inventory UL60950 recognition in U.S. & Canada, and DEMKO certification per IEC/EN60950 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.00640 AA END OF LIFEYNM05S05 DC-DC Converter Conditions: T = 25 C, Airflow = 300 LFM (1.5 m/s), Vin = 5 VDC, Vout = 0.7525 3.63 V, unless otherwise specified. A 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 300 kHz 1 Output Voltage Trim Range By external resistor, See Trim Table 1 0.7525 3.63 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) 3.5 ms With Enable (Vin = Vin(nom) applied, then enabled) From enable to Vo = 0.1*Vo(nom) 3.5 ms 2 Rise time (Full resistive load) From 0.1*Vo(nom) to 0.9*Vo(nom) 3.5 ms Converter Off 2.4 5.5 VDC 3 ON/OFF Control Converter On -5 0.8 VDC Input Characteristics Operating Input Voltage Range For Vout 2.5 V 4.5 5.0 5.5 VDC For Vout 2.5 V 3.0 5.0 5.5 VDC Input Undervoltage Lockout Turn-on Threshold 2.3 2. 5 VDC Turn-off Threshold 2 2.2 VDC Maximum Input Current VIN = 4.5 VDC, IOUT = 5 A VOUT = 3.3 VDC 4.2 ADC VIN = 3.0 VDC, IOUT = 5 A VOUT = 2.5 VDC 4.5 ADC VIN = 3.0 VDC, IOUT = 5 A VOUT = 2.0 VDC 3.7 ADC VIN = 3.0 VDC, IOUT = 5 A VOUT = 1.8 VDC 3.4 ADC VIN = 3.0 VDC, IOUT = 5 A VOUT = 1.5 VDC 2.9 ADC VIN = 3.0 VDC, IOUT = 5 A VOUT = 1.2 VDC 2.35 ADC V = 3.0 VDC, I = 5 A V = 1.0 VDC 2.0 ADC IN OUT OUT V = 3.0 VDC, I = 5 A V = 0.7525 VDC 1.6 ADC IN OUT OUT Input Standby Current (Converter disabled) Vin = 5.0 VDC 2 mA Input No Load Current (Converter enabled) Vin = 5.5 VDC V = 3.3 VDC 70 mA OUT VOUT = 2.5 VDC 65 mA VOUT = 2.0 VDC 60 mA VOUT = 1.8 VDC 55 mA VOUT = 1.5 VDC 50 mA V = 1.2 VDC 40 mA OUT V = 1.0 VDC 35 mA OUT V = 0.7525 VDC 30 mA OUT Input Reflected-Ripple Current - i See Fig. F for setup. (BW = 20 MHz) 40 mA s P-P Notes: 1 The output voltage should not exceed 3.63 V. 2 Note that startup time is the sum of turn-on delay time and rise time. 3 The converter is on if ON/OFF pin is left open. 866.513.2839 tech.support psbel.com 2015 Bel Power Solutions, Inc. BCD.00640 AA END OF LIFE