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feb 17, 2006 revised to nov 03, 2006 page 1 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output applications ? intermediate bus architectures ? telecommunications ? data communications ? distributed power architectures ? servers, workstations benefits ? high efficiency ? no heat sink required ? reduces total solution board area ? tape and reel packing ? compatible with pick & place equipment the products: y-series features ? rohs lead-free solder and lead-solder-exempted products are available ? delivers up to 10 a (33 w) ? no derating up to 85 c ? surface-mount package ? industry-standard footprint and pinout ? small size and low profile: 1.30? x 0.53? x 0.314? (33.02 x 13.46 x 7.98 mm) ? weight: 0.22 oz [6.12 g] ? coplanarity less than 0.003?, maximum ? synchronous buck converter topology ? start up into pre-biased output ? no minimum load required ? programmable output voltage via external resistor ? operating ambient temperature: -40 c to 85 c ? remote output sense ? remote on/off (positive or negative) ? fixed-frequency operation ? auto-reset output overcurrent protection ? auto-reset overtemperature protection ? high reliability, mtbf = 32.54 million hours calculated per telcordia tr-332, method i case 1 ? all materials meet ul94, v-0 flammability rating ? ul60950 recognition in u.s. & canada, and demko certification per iec/en60950 description the ynl05s100xy 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 3. 0 to 5.5 vdc input, the ynl05s100xy converters are ideal choices for intermediate bus architectures where point-of-load (pol) power delivery is generally a requirement. the converters are available in individual output volt age versions, allowing coverage of the output voltage range from 0.9 to 3.3 vdc. each version is capable of pr oviding an extremely tight, highly regulated and trimmable output. the y-series of converters provide exceptional therma l performance, even in high temperature environments with no airflow. no derating is required up to 85 c, without airflow at natural convection. this performance is accomplished through the use of advanc ed circuitry, packaging, and processing techniques to achieve a design possessing ultra-high efficiency, excellent t hermal management, and a very low-body profile. the low-body profile and the preclusion of heat sinks mi nimize impedance to system airflow, thus enhancing cooling for both upstream and downstream devices. the use of 100% automation for assembly, coupled with advanced power electronics and therma l design, results in a product with extremely high reliability.
feb 17, 2006 revised to nov 03, 2006 page 2 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output electrical specifications conditions: t a = 25 oc, airflow = 300 lfm (1.5 m/s), vin = 5 vdc, vout = 0.9 ? 3.3 vdc, 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 output voltage trim range 1 see trim equation -10 +10 % vout = 0.9 vdc -5 +10 % remote sense compensation 1 percent of v out ( nom ) 0.5 vdc turn-on delay time 2 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 rise time 2 from 0.1*vo(nom) to 0.9*vo(nom) 3 3.5 5 ms on/off control (positive logic) 3 converter off -5 0.8 vdc converter on 2.4 5.5 vdc on/off control (negative logic) 3 converter off 2.4 5.5 vdc converter on -5 0.8 vdc additional notes: 1 the output voltage should not exceed 3.63 v (taking into a ccount both the trimming and remote sense compensation). 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.
feb 17, 2006 revised to nov 03, 2006 page 3 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output electrical specifications (continued) conditions: t a = 25 oc, airflow = 300 lfm (1.5 m/s), vin = 5 vdc, vout = 0.9 ? 3.3 vdc, unless otherwise specified. parameter notes min typ max units input characteristics operating input voltage range v out = 0.9 ? 2.5 vdc 3.0 5.0 5.5 vdc v out > 2.5 vdc 4.5 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 in = 4.5 vdc, i out = 10 a v out = 3.3 vdc 7.9 adc v in = 3.0 vdc, i out = 10 a v out = 2.5 vdc 9.1 adc v in = 3.0 vdc, i out = 10 a v out = 2.0 vdc 7.3 adc v in = 3.0 vdc, i out = 10 a v out = 1.8 vdc 6.7 adc v in = 3.0 vdc, i out = 10 a v out = 1.5 vdc 5.7 adc v in = 3.0 vdc, i out = 10 a v out = 1.2 vdc 4.7 adc v in = 3.0 vdc, i out = 10 a v out = 1.0 vdc 4.0 adc v in = 3.0 vdc, i out = 10 a v out = 0.9 vdc 3.6 adc input standby current (converter di sabled) vin = 5.0 vdc 10 ma input no load current (converter enabled) vin = 5.5 vdc v out = 3.3 vdc 90 ma v out = 2.5 vdc 90 ma v out = 2.0 vdc 80 ma v out = 1.8 vdc 75 ma v out = 1.5 vdc 70 ma v out = 1.2 vdc 65 ma v out = 1.0 vdc 60 ma v out = 0.9 vdc 50 ma input reflected-ripple current - i s see fig. h for setup (bw = 20 mhz) 15 ma p-p
feb 17, 2006 revised to nov 03, 2006 page 4 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output electrical specifications (continued) conditions: t a = 25 oc, airflow = 300 lfm (1.5 m/s), vin = 5 vdc, vout = 0.9 ? 3.3 vdc, unless otherwise specified. parameter notes min typ max units output characteristics output voltage set point (no load) -1.5 vout +1.5 %vout output regulation 4 over line full resistive load 0.1 0.5 %vout over load from no load to full load 0.1 0.5 %vout output voltage accuracy (over all operating input voltage, resistive load and temperature conditi ons until end of life ) -3 +3 %vout output ripple and noise ? 20 mhz bandwidth ov er line, load and temperature (fig. h) peak-to-peak v out = 3.3 vdc 30 50 mv p-p peak-to-peak v out = 0.9 vdc 15 30 mv p-p external load capacitance plus full load (resistive) min esr > 1 m ? 1,000 f min esr > 10 m ? 5,000 f output current range 0 10 a output current limit inception (i out ) 18 a output short-circuit current (hiccup mode) short = 10 m ? , continuous 3 arms dynamic response 50% load current change from 5 a -10 a with di/dt = 5 a/ s 4 co = 47 f tant. + 1 f ceramic 110 mv settling time (v out < 10% peak deviation) 4 25 s 50% load current change from 5 a -10 a with di/dt = -5 a/ s 4 co = 47 f tant. + 1 f ceramic 120 mv settling time (v out < 10% peak deviation) 4 25 s efficiency full load (10 a) v out = 3.3 vdc 94.5 % v out = 2.5 vdc 93.0 % v out = 2.0 vdc 92.0 % v out = 1.8 vdc 91.5 % v out = 1.5 vdc 89.5 % v out = 1.2 vdc 87.5 % v out = 1.0 vdc 86.0 % v out = 0.9 vdc 84.5 % additional notes: 4 see waveforms for dynamic response and settling time for different output voltages.
feb 17, 2006 revised to nov 03, 2006 page 5 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output operations input and output impedance the y-series converter should be connected via a low impedance to the dc power source. in many applications, the inductance associated with the distribution from the power so urce to the input of the converter can affect the st ability of the converter. the use of decoupling capacitors is recommended in order to ensu re stability of the c onverter and reduce input ripple voltage. internally, the converter has 52 f (low esr ceramics) of input capacitance. in a typical application, low - esr tantalum or pos capacitors will be sufficient to provide adequate ripple voltage filtering at the input of the converter. however, very low esr ceramic capacitors 100 - 200 f are recommended at the input of the converter in order to minimize the input ripple voltage. they should be placed as close as possible to the input pins of the converter. the ynl05s100xy has been designed for stable operation with or without external capacitance. low esr ceramic capacitors placed as close as possible to the load (minimum 47 f) are recommended for improved transient performance and lower output voltage ripple. it is important to keep low resistance and low inductance pcb traces for connecting load to the output pins of the converter in order to maintain good load regulation. fig. a shows the input voltage ripple for various output voltages using four 47 f input ceramic capacitors. the same plot is shown in fig. b with one 470 f polymer capacitor (6tpb470m from sanyo) in parallel with two 47 f ceramic capacitors at full load. 0 20 40 60 80 100 120 140 01234 vout [v] input voltage ripple [mv] vin=5.0v vin=3.3v fig. a: input voltage ripple, c in = 4x47 f ceramic, full load. 0 20 40 60 80 100 120 140 160 01234 vout [v] input voltage ripple [mv] vin=5.0v vin=3.3v fig. b: input voltage ripple, c in = 470 f polymer + 2 x 47 f ceramic . on/off (pin 1) the on/off pin is used to turn the power converter on or off remotely via a system signal. there are two remote control options available, positive logic (standard option) and negative logic, with on/off signal referenced to gnd. the typical connections are shown in fig. c. rload vin control input vin vin gnd on/off sense (top view) converter trim vout r* r* is for negative logic option only y-series fig. c: circuit configuration for on/off function. to turn the converter on the on/off pin should be at a logic low or left open, and to turn the converter off the on/off pin should be at a logic high or connected to vin. see the electrical specifications for logic high/low definitions. the positive logic version turns the converter on when the on/off pin is at a logic high or left open, and turns the converter off when at a logic low or shorted to gnd. the negative logic version turns the converter on when the on/off pin is at logic low or left open, and turns the converter off when the on/off pin is at a logic high or connected to vin. the on/off pin is internally pulled up to vin for positive logic version, and pulled down for a negative logic version. a ttl or cmos logic gate, open-
feb 17, 2006 revised to nov 03, 2006 page 6 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output collector (open-drain) transistor can be used to drive on/off pin. this device must be capable of: ? sinking up to 1.2 ma at a low level voltage of 0.8 v ? sourcing up to 0.25 ma at a high logic level of 2.3 - 5.5 v. when using open-collector (open-drain) transistor with a negative logic option, add a pull-up resistor (r*) to vin as shown in fig. c: ? 20 k, if the minimum vin is 4.5 v ? 10 k, if the minimum vin is 3.0 v ? 5 k, if the undervoltage shutdown at 2.05 - 2.15 v is required. remote sense (pin 2) the remote sense feature of the converter compensates for voltage drops occurring only between vout pin (pin 4) of the converter and the load. the sense (pin 2) pin should be connected at the load or at the point where regulation is required (see fig. d). there is no sense feature on the output gnd return pin, where the solid ground plane should provide a low voltage drop. vin vin rw rw rload vin gnd on/off (top view) converter trim sense vout y-series fig. d: remote sense circuit configuration. the option without sense pin is available; see the part numbering scheme section for the ordering information. however, if remote sensing is not required, the sense pin must be connected to the vout pin (pin 4) to ensure the converter will regulate at the specified output voltage. if these connections are not made, the converter will deliver an output voltage that is slightly higher than the specified value. because the sense lead carries minimal current, large traces on the end-user board are not required. however, the sense trace should be located close to a ground plane to minimize system noise and ensure optimum performance. when utilizing the remote sense feature, care must be taken not to exceed the maximum allowable output power capability of the converter, which is equal to the product of the nominal output voltage and the allowable output current for the given conditions. when using remote sense, the output voltage at the converter can be increased up to 0.5 v above the nominal rating in order to maintain the required voltage across the load. therefore, the designer must, if necessary, decrease the maximum current (originally obtained from t he derating curves) by the same percentage to ensure the converter?s actual output power remains at or below the maximum allowable output power. output voltage adjust/trim (pin 3) the output voltage can be adjusted up 10% or down 10% of its nominal output rating using an external resistor. the converter without trim feature is also available; see the part numbering scheme section for the ordering information. rload vin r t-incr converter vin gnd on/off sense (top view) trim vout y-series fig. e: configuration for increasing output voltage. to trim up the output voltage, refer to fig. e. a trim resistor, r t-incr , should be connected between trim pin (pin 3) and gnd pin (pin 5) with value of: for v o-nom 1.2 v, int incr t r ) v - (v 08 . 24 r nom - o req - o ? = ? [k ? ] for v o-nom = 1.0 v and 0.9 v, int incr t r ) v - (v 21.07 r nom - o req - o ? = ? [k ? ] where, = ? incr t r required value of trim-up resistor [k ? ] = ? req o v desired (trimmed) output voltage [v] = ? nom o v nominal output voltage [v] = int r internal series resistor according to table 1 [k ? ] table 1: internal series resistors r int v 0-nom [v] 3.3 2.5 2.0 1.8 1.5 1.2 1.0 0.9 r int [k ? ] 59 78.7 100 100 100 59 30.1 5.11
feb 17, 2006 revised to nov 03, 2006 page 7 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output to trim down the output voltage (fig. f), a trim resistor, r t-decr , should be connected between the trim pin (pin 3) and sense pin (pin 2), with a value of: for v o-nom 1.2 v, int decr t r ) v - (v 30.1 * 0.8) - (v r req - o nom - o req - o ? = ? [k ? ] for v o-nom = 1.0 v, 0.9 v, int decr t r ) v - (v 30.1 * 0.7) - (v r req - o nom - o req - o ? = ? [k ? ] where, = ? decr t r required value of trim-down resistor [k ? ] rload vin r t-decr converter vin gnd on/off sense (top view) trim vout y-series fig. f: configuration for decreasing output voltage. standard 1% and 5% resistors can be used for trimming. ground pin of the trim resistor should be connected directly to the module gnd pin (pin 5) with no voltage drop in between. the output voltage can be trimmed up or down using an external voltage source: for v o-nom 1.2 v, 30.1 r * ) v - (v 8 . 0 v int rim t nom - o req - o ? = [v] for v o-nom = 1.0 v, 0.9 v, 30.1 r * ) v - (v 7 . 0 v int rim t nom - o req - o ? = [v] where, = rim t v output voltage applied to trim pin (referenced to gnd) [v] the trim equations for the converters with v o-nom 1.2 v are industry standard; thus allowing easy second sourcing. protection features input undervoltage lockout input undervoltage lockout is standard with this converter. the converter will shut down when the input voltage drops below a pre-determined voltage; it will start automatically when vin returns to a specified range. the input voltage must be typically 2.05 v for the converter to turn on. on ce the converter has been turned on, it will shut off when the input voltage drops below typically 1.9 v. output overcurrent protection (ocp) the converter is protected against overcurrent and short circuit conditions. upon sensing an overcurrent condition, the converter will enter hiccup mode. once an over-load or short circuit condition is removed, vout will return to nominal value. overtemperature protection (otp) the converter will shut down under an overtemperature condition to protect itself from overheating caused by opera tion outside the thermal derating curves, or operation in abnormal conditions such as system fan failure. after the converter has cooled to a safe operating temperature, it will automatically restart. safety requirements the converter meets north american and international safety regulatory requirements per ul60950 and en60950. the maximum dc voltage between any two pins is vin under all operating conditions. therefore, the unit has elv (extra low voltage) output; it meets selv requirements under the condition that all input voltages are elv. the converter is not internally fused. to comply with safety agencies? requirements, a recognized fuse with a maximum rating of 20 amps must be used in series with the input line. characterization general information the converter has been characterized for many operational aspects, to include thermal derating (maximum load current as a function of ambient temperature and airflow) for vertical and horizontal mountings, efficiency, startup and shutdown parameters, output ripple and noise, transient response to load step-change, overload, and short circuit.
feb 17, 2006 revised to nov 03, 2006 page 8 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output the figures are numbered as fig. x.y, where x indicates the different output voltages, and y associates with specific pl ots (y = 1 for the vertical thermal derating, ?). for example, fig. x.1 will refer to the vertical thermal derating for all the output voltages in general. the following pages contain specific plots or waveforms associated with the converter. additional comments for specific data are provided below. test conditions all data presented were taken with the converter soldered to a test board, specifically a 0.060? thick printed wiring board (pwb) with four layers. the top and bottom layers were not metalized. the two inner layers, comprised of two-ounce copper, were used to provide traces for connect ivity to the converter. the lack of metalization on the outer layers as well as the limited thermal connection ensured that heat transfer from the converter to the pwb was minimized. this provides a worst-case but consistent scenario for thermal derating purposes. all measurements requiring airflow were made in the vertical and horizontal wind tunnels using infrared (ir) thermography and thermocouples for thermometry. ensuring components on the converter do not exceed their ratings is important to maintaining high reliability. if one anticipates operating the converter at or close to the maximum loads specified in the derating curves, it is prudent to check actual operating temperatures in the application. thermographic imaging is preferable; if this capability is not available, then thermocouples may be used. the use of awg #40 gauge thermocouple is recommended to ensure measurement accuracy. careful routing of the ther mocouple leads will further minimize measurement error. refer to fig. g for the optimum measuring thermocouple location. fig. g: location of the thermocouple for thermal testing. thermal derating load current vs. ambient temperature and airflow rates are given in figs. x.1 and figs. x.2 for maximum temperature of 110c. ambient temperature was varied between 25 c and 85 c, with airflow rates from 30 to 500 lfm (0.15 m/s to 2.5 m/s), and vertical and horizontal mountings. the airflow during the testing is parallel to the short axis of the converter, going from pin 1 and pin 6 to pins 2?5. for each set of conditions, the maximum load current is defined as the lowest of: (i) the output current at which any mosfet temperature does not exceed a maximum specified temperature (110c) as indicated by the thermographic image, or (ii) the maximum current rating of the converter (10 a). during normal operation, derating curves with maximum fet temperature less than or equal to 110 c should not be exceeded. temperature on the pcb at the thermocouple location shown in fig. g should not exceed 110 c in order to operate inside the derating curves. efficiency fig. x.3 shows the efficiency vs. load current plot for ambient temperature of 25 oc, airflow rate of 200 lfm (1 m/s), and input voltages of 4.5 v, 5.0 v, and 5.5 v. fig. x.4 is for input voltages of 3.0 v, 3.3 v, and 3.6 v, and for output voltages 2.5 v. power dissipation fig. 3.3v.4 shows the power dissipation vs. load current plot for ta = 25 oc, airflow rate of 200 lfm (1 m/s) with vertical mounting and input voltages of 4.5 v, 5.0 v, and 5.5 v, and output of 3.3 v. ripple and noise the output voltage ripple waveform is measured at full rated load current. note that all output voltage waveforms are measured across a 1 f ceramic capacitor. the output voltage ripple and input reflected-ripple current waveforms are obtained using the test setup shown in fig. h. vout v source 1 f ceramic capacitor 1 h source inductance dc-dc converter 4x47 f ceramic capacitor 47 f ceramic capacitor c o c in y-series fig. h: test setup for measuring input reflected-ripple currents, i s and output voltage ripple.
feb 17, 2006 revised to nov 03, 2006 page 9 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 3.3v.1: available load current vs. ambient temperature and airflow rates for ynl05s10033 converter mounted vertically with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.75 0.80 0.85 0.90 0.95 1.00 5.5 v 5.0 v 4.5 v fig. 3.3v.3: efficiency vs. load current and input voltage for ynl05s10033 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c. ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 3.3v.2: available load current vs. ambient temperature and airflow rates for ynl05s10033 converter mounted horizontally with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 power dissipation [w] 0.0 0.5 1.0 1.5 2.0 2.5 5.5 v 5.0 v 4.5 v fig. 3.3v.4: power loss vs. load current and input voltage for ynl05s10033 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c.
feb 17, 2006 revised to nov 03, 2006 page 10 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output fig. 3.3v.5: turn-on transient (ynl05s10033) with the application of enable signal at full rated load current (resistive) and 47 f external capacitance at vin = 5 v. top trace: enable signal (2 v/div.); bottom trace: output voltage (1 v/div.); time scale: 2 ms/div. fig. 3.3v.7: output voltage (ynl05s10033) to positive load current step change from 5 a to 10 a with slew rate of 5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div. fig. 3.3v.6: output voltage ripple (20 mv/div.) at full rated load current into a resistive load with external capacitance 47 f ceramic + 1 f ceramic and vin = 5 v (ynl05s10033). time scale: 2 s/div. fig. 3.3v.8: output voltage response (ynl05s10033) to negative load current step change from 10 a to 5 a with slew rate of -5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div.
feb 17, 2006 revised to nov 03, 2006 page 11 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 2.5v.1: available load current vs. ambient temperature and airflow rates for ynl05s10025 converter mounted vertically with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.75 0.80 0.85 0.90 0.95 1.00 5.5 v 5.0 v 4.5 v fig. 2.5v.3: efficiency vs. load current and input voltage for ynl05s10025 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c. ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 2.5v.2: available load current vs. ambient temperature and airflow rates for ynl05s10025 converter mounted horizontally with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.75 0.80 0.85 0.90 0.95 1.00 3.6 v 3.3 v 3.0 v fig. 2.5v.4: efficiency vs. load current and input voltage for ynl05s10025 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c.
feb 17, 2006 revised to nov 03, 2006 page 12 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output fig. 2.5v.5: turn-on transient (ynl05s10025) with the application of enable signal at full rated load current (resistive) and 47 f external capacitance at vin = 5 v. top trace: enable signal (2 v/div.); bottom trace: output voltage (1 v/div.); time scale: 2 ms/div. fig. 2.5v.7: output voltage response (ynl05s10025) to positive load current step change from 5 a to 10 a with slew rate of 5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div. fig. 2.5v.6: output voltage ripple (20 mv/div.) at full rated load current into a resistive load with external capacitance 47 f ceramic + 1 f ceramic and vin = 5 v (ynl05s10025). time scale: 2 s/div. fig. 2.5v.8: output voltage response (ynl05s10025) to negative load current step change from 10 a to 5 a with slew rate of -5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div.
feb 17, 2006 revised to nov 03, 2006 page 13 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 2.0v.1: available load current vs. ambient temperature and airflow rates for ynl05s10020 converter mounted vertically with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.75 0.80 0.85 0.90 0.95 1.00 5.5 v 5.0 v 4.5 v fig. 2.0v.3: efficiency vs. load current and input voltage for ynl05s10020 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c. ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 2.0v.2: available load current vs. ambient temperature and airflow rates for ynl05s10020 converter mounted horizontally with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.75 0.80 0.85 0.90 0.95 1.00 3.6 v 3.3 v 3.0 v fig. 2.0v.4: efficiency vs. load current and input voltage for ynl05s10020 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c.
feb 17, 2006 revised to nov 03, 2006 page 14 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output fig. 2.0v.5: turn-on transient (ynl05s10020) with the application of enable signal at full rated load current (resistive) and 47 f external capacitance at vin = 5 v. top trace: enable signal (2 v/div.); bottom trace: output voltage (500 mv/div.); time scale: 2 ms/div. fig. 2.0v.7: output voltage response (ynl05s10020) to positive load current step change from 5 a to 10 a with slew rate of 5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div. fig. 2.0v.6: output voltage ripple (20 mv/div.) at full rated load current into a resistive load with external capacitance 47 f ceramic + 1 f ceramic and vin = 5 v (ynl05s10020). time scale: 2 s/div. fig. 2.0v.8: output voltage response (ynl05s10020) to negative load current step change from 10 a to 5 a with slew rate of -5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div.
feb 17, 2006 revised to nov 03, 2006 page 15 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 1.8v.1: available load current vs. ambient temperature and airflow rates for ynl05s10018 converter mounted vertically with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.75 0.80 0.85 0.90 0.95 1.00 5.5 v 5.0 v 4.5 v fig. 1.8v.3: efficiency vs. load current and input voltage for ynl05s10018 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c. ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 1.8v.2: available load current vs. ambient temperature and airflow rates for ynl05s10018 converter mounted horizontally with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.75 0.80 0.85 0.90 0.95 1.00 3.6 v 3.3 v 3.0 v fig. 1.8v.4: efficiency vs. load current and input voltage for ynl05s10018 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c.
feb 17, 2006 revised to nov 03, 2006 page 16 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output fig. 1.8v.5: turn-on transient (ynl05s10018) with the application of enable signal at full rated load current (resistive) and 47 f external capacitance at vin = 5 v. top trace: enable signal (2 v/div.); bottom trace: output voltage (500 mv/div.); time scale: 2 ms/div. fig. 1.8v.7: output voltage response (ynl05s10018) to positive load current step change from 5 a to 10 a with slew rate of 5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div. fig. 1.8v.6: output voltage ripple (20 mv/div.) at full rated load current into a resistive load with external capacitance 47 f ceramic + 1 f ceramic and vin = 5 v (ynl05s10018). time scale: 2 s/div. fig. 1.8v.8: output voltage response (ynl05s10018) to negative load current step change from 10 a to 5 a with slew rate of -5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div.
feb 17, 2006 revised to nov 03, 2006 page 17 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 1.5v.1: available load current vs. ambient temperature and airflow rates for ynl05s10015 converter mounted vertically with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.75 0.80 0.85 0.90 0.95 5.5 v 5.0 v 4.5 v fig. 1.5v.3: efficiency vs. load current and input voltage for ynl05s10015 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c. ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 1.5v.2: available load current vs. ambient temperature and airflow rates for ynl05s10015 converter mounted horizontally with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.75 0.80 0.85 0.90 0.95 3.6 v 3.3 v 3.0 v fig. 1.5v.4: efficiency vs. load current and input voltage for ynl05s10015 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c.
feb 17, 2006 revised to nov 03, 2006 page 18 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output fig. 1.5v.5: turn-on transient (ynl05s10015) with the application of enable signal at full rated load current (resistive) and 47 f external capacitance at vin = 5 v. top trace: enable signal (2 v/div.); bottom trace: output voltage (500 mv/div.); time scale: 2 ms/div. fig. 1.5v.7: output voltage response (ynl05s10015) to positive load current step change from 5 a to 10 a with slew rate of 5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div. fig. 1.5v.6: output voltage ripple (20 mv/div.) at full rated load current into a resistive load with external capacitance 47 f ceramic + 1 f ceramic and vin = 5 v (ynl05s10015). time scale: 2 s/div. fig. 1.5v.8: output voltage response (ynl05s10015) to negative load current step change from 10 a to 5 a with slew rate of -5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div.
feb 17, 2006 revised to nov 03, 2006 page 19 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 1.2v.1: available load current vs. ambient temperature and airflow rates ynl05s10012 converter mounted vertically with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.70 0.75 0.80 0.85 0.90 0.95 5.5 v 5.0 v 4.5 v fig. 1.2v.3: efficiency vs. load current and input voltage for ynl05s10012 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c. ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 1.2v.2: available load current vs. ambient temperature and airflow rates for ynl05s10012 converter mounted horizontally with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.70 0.75 0.80 0.85 0.90 0.95 3.6 v 3.3 v 3.0 v fig. 1.2v.4: efficiency vs. load current and input voltage for ynl05s10012 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c.
feb 17, 2006 revised to nov 03, 2006 page 20 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output fig. 1.2v.5: turn-on transient (ynl05s10012) with the application of enable signal at full rated load current (resistive) and 47 f external capacitance at vin = 5 v. top trace: enable signal (2 v/div.); bottom trace: output voltage (500 mv/div.); time scale: 2 ms/div. fig. 1.2v.6: output voltage response (ynl05s10012) to positive load current step change from 5 a to 10 a with slew rate of 5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div. fig. 1.2v.6: output voltage ripple (20 mv/div.) at full rated load current into a resistive load with external capacitance 47 f ceramic + 1 f ceramic and vin = 5 v (ynl05s10012). time scale: 2 s/div. fig. 1.2v.8: output voltage response (ynl05s10012) to negative load current step change from 10 a to 5 a with slew rate of -5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div.
feb 17, 2006 revised to nov 03, 2006 page 21 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 1.0v.1: available load current vs. ambient temperature and airflow rates ynl05s10010 converter mounted vertically with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.70 0.75 0.80 0.85 0.90 0.95 5.5 v 5.0 v 4.5 v fig. 1.0v.3: efficiency vs. load current and input voltage for ynl05s10010 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c. ambient temperature [c] 20 30 40 50 60 70 80 90 load current [adc] 0 2 4 6 8 10 12 500 lfm (2.5 m/s) 400 lfm (2.0 m/s) 300 lfm (1.5 m/s) 200 lfm (1.0 m/s) 100 lfm (0.5 m/s) 30 lfm (0.15 m/s) fig. 1.0v.2: available load current vs. ambient temperature and airflow rates for ynl05s10010 converter mounted horizontally with vin = 5 v, and maximum mosfet temperature 110 c. load current [adc] 024681012 efficiency 0.70 0.75 0.80 0.85 0.90 0.95 3.6 v 3.3 v 3.0 v fig. 1.0v.4: efficiency vs. load current and input voltage for ynl05s10010 converter mounted vertically with air flowing at a rate of 200 lfm (1 m/s) and ta = 25 c.
feb 17, 2006 revised to nov 03, 2006 page 22 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output fig. 1.0v.5: turn-on transient (ynl05s10010) with the application of enable signal at full rated load current (resistive) and 47 f external capacitance at vin = 5 v. top trace: enable signal (2 v/div.); bottom trace: output voltage (500 mv/div.); time scale: 2 ms/div. fig. 1.0v.7: output voltage response (ynl05s10010) to positive load current step change from 5 a to 10 a with slew rate of 5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div. fig. 1.0v.6: output voltage ripple (20 mv/div.) at full rated load current into a resistive load with external capacitance 47 f ceramic + 1 f ceramic and vin = 5 v (ynl05s10010). time scale: 2 s/div. fig. 1.0v.8: output voltage response (ynl05s10010) to negative load current step change from 10 a to 5 a with slew rate of -5 a/ s at vin = 5 v. top trace: output voltage (100 mv/div.); bottom trace: load current (5 a/div.). co = 47 f ceramic + 1 f ceramic. time scale: 20 s/div.
feb 17, 2006 revised to nov 03, 2006 page 23 of 23 www.power-one.com ynl05s100xy dc-dc converter data sheet 3.0 to 5.5 vdc input; 0.9 to 3.3 vdc @ 10 a output physical information ynl05s pinout (surface-mount) top view (*) pin # 1 rotated 90 6 side view 3 4 5 1(*) 2 converter part numbering scheme product series input voltage mounting scheme rated load current output voltage enable logic special feature environmental ynl 05 s 10 033 ? 0 y-series 3.0 ? 5.5 v s ? surface- mount 10 a 009 ? 0.9 v 010 ? 1.0 v 012 ? 1.2 v 015 ? 1.5 v 018 ? 1.8 v 020 ? 2.0 v 025 ? 2.5 v 033 ? 3.3 v 0 ? standard (positive logic) d ? opposite of standard (negative logic) 01 ? no trim pin option 02 ? no remote sense pin option 03 ? no trim & remote sense pin option no suffix ? rohs lead-solder- exemption compliant g ? rohs compliant for all six substances the example above describes p/n ynl05s10033-0: 3.0 ? 5.5 v i nput, surface-mount, 10 a @ 3.3 v output, standard enable logic, an d eutectic tin/lead solder 1 . please consult factory for the complete list of available options . note: the trim and/or sense pin will not be populated depe nding on the selected special feature ?01?, ?02? or ?03? . nuclear and medical applications - power-one products are not des igned, intended for use in, or authorized for use as critical components in life support systems, equipment used in hazardous env ironments, or nuclear control systems without the express wr itten consent of the respective divisional president of power-one, inc. technical revisions - the appearance of products, including safety agency certifications pictured on labels, may change dependi ng on the date manufactured. specifications are subject to change without notice. pad/pin connections pad/pin # function 1 on/off 2 sense 3 trim 4 vout 5 gnd 6 vin ynl05s platform notes ? all dimensions are in inches [mm] ? connector material: copper ? connector finish: gold over nickel ? converter weight: 0.22 oz [6.12 g] ? converter height: 0.327? max., 0.301? min. ? recommended surface-mount pads: min. 0.080? x 0.112? [2.03 x 2.84]

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