single output uep models features high-density, 2" x 1" 1-4.5 amp, 11-18 watt dc/dc's figure 1. simpli ed schematic the uep 11-18watt series dc/dc converter is an alternative pinout for datel?s ? agship a-series. an external pinout con? guration affords the design layout to be oriented for optimal thermal performance thereby increasing available output power as much as 20%. available in a 1" x 2" package, these converters can deliver up to 18 watts at the same ambient temperatures as their 15 watt counterparts. by combining a high-frequency (340khz), high-ef? ciency (to 88%), synchronous- recti? er topology with the newest components and time-tested, fully automated, smt-on-pcb construction, these uep models are able to bring you 11-18w in the standard 2" x 1" package from which most competitors can only get 5-10w. all uep?s deliver their full output power over ambient temperature ranges from ?40 c to as high as +70 c (model and input voltage dependent) without heat sinks or supplemental forced-air cooling. devices derate to +100 c. output voltages are 3.3, 5, 12 or 15 volts. input voltage ranges are 10-18v ("d12" models), 18-36v ("d24" models) or 36-75v ("d48") models. all models fea- ture input pi ? lters, input undervoltage and overvoltage lockout, input reverse-polarity protection, output overvoltage protection, output current limiting, and continuous short-circuit protection. standard features also include on/off control and output- trim. all models are certi? ed to iec950, ul60950 and en60950 safety requirements for operational insulation. "d48" models (36-75v inputs) are ce marked. uep 11-18w dc/dc?s are packaged in low-cost, light-weight, diallyl phthalate (ul94v-0 rated) plastic packages with standoffs. emc compliance is achieved via a low-noise design rather than through expensive metal shielding. innovation and ex c ell e n c e ? ? +input +output pwm controller opto isolation uvlo & ovlo comparators switch control reference & error amp ?output trim ?input on/off control 1.5, 1.8, 2.5, 3.3v and 5v-output models use the synchronous-recti er con guration shown above. 12v and 15v-output models employ a standard, diode-recti cation architecture. datel, inc., mans? eld, ma 02048 (usa) tel: (508)339-3000, (800)233-2765 fax: (508)339-6356 email: sales@datel.co m internet: www.datel.com ? ? ? ? ? ? ? ? ? ? ? ? ? models include 3.3v @ 4.5a 5v @ 3.5a 12v @ 1.2a 15v @ 1a choice of 3 input ranges: 10-18v, 18-36v, 36-75v guaranteed ef ciencies to 86% 11-18 watts in 1" x 2" package 340khz synchronous-recti er topologies 40 to +60/70 c ambient w/o derating fully isolated (1500vdc); i/o protected trim and on/off control ul60950/en60950 certi ed ce mark (75v in models)
uep series 11-18w, single output dc/dc converters 1.00 (25.40) 0.10 (2.54) 0.100 (2.54) 0.10 (2.54) 0.400 (10.16) 0.400 (10.16) 0.600 (15.24) 1.800 (45.72) 0.800 (20.32) bottom view 1 2 3 4 5 6 plastic case standoff 0.020 (0.51) 2.00 (50.80) 0.20 min (5.08) 0.49 (12.45) 0.040 0.002 dia. (1.016 0.051) dimensions are in inches (mm) r/n (mvp-p) ? regulation (max.) ef ciency package v out i out v in nom. range i in ? (case, model (volts) (ma) typ. max. line load ? (volts) (volts) (ma) min. typ. pinout) 2 performance speci cations and ordering guide ? typical at t a = +25? under nominal line voltage and full-load conditions, unless otherwise noted. ? ripple/noise (r/n) is tested/speciifed over a 20mhz bandwidth. all models are speci ed with no external input/output capacitors. ? uep-3.3/4500-d12 3.3 4500 85 100 ?.2% ?.5% 12 10-18 80/1490 84.5% 83.5% c15, p21 uep-3.3/4500-d24 3.3 4500 85 100 ?.2% ?.5% 24 18-36 50/730 87.5% 85.5% c15, p21 uep-3.3/4500-d48 3.3 4500 85 100 ?.2% ?.5% 48 36-75 35/360 87.5% 85.5% c15, p21 uep-5/3500-d12 5 3500 85 100 ?.2% ?.5% 12 10-18 120/1760 86% 84% c15, p21 uep-5/3500-d24 5 3500 85 100 ?.2% ?.5% 24 18-36 65/850 88% 86% c15, p21 uep-5/3500-d48 5 3500 85 100 ?.2% ?.5% 48 36-75 40/430 88% 86% c15, p21 uep-12/1400-d12 12 1400 85 100 ?.2% ?.5% 12 10-18 60/1650 85% 82.5% c15, p21 uep-12/1400-d24 12 1400 85 100 ?.2% ?.5% 24 18-36 45/800 87% 85% c15, p21 uep-12/1400-d48 12 1400 85 100 ?.2% ?.5% 48 36-75 20/400 87% 85% c15, p21 uep-15/1200-d12 15 1200 85 100 ?.2% ?.5% 12 10-18 60/1760 85% 82.% c15, p21 uep-15/1200-d24 15 1200 85 100 ?.2% ?.5% 24 18-36 45/860 87% 85% c15, p21 uep-15/1200-d48 15 1200 85 100 ?.2% ?.5% 48 36-75 30/430 87% 85% c15, p21 wide range input output con guration: u = unipolar nominal output voltage: 3.3, 5, 12 or 15 volts maximum output current in ma input voltage range: d12 = 10-18 volts (12v nominal) d24 = 18-36 volts (24v nominal) d48 = 36-75 volts (48v nominal) u ep 4500 - / d48 n - 3.3 optional functions uep converters are designed such that the 12 and 15v out models can be con gures for either positive logic on/off control (no suf x) or negative logic ("n" suf x). 3.3 and 5v out models are available with positive logic only (no suf x). no suf x on/off control function (positive polarity) on pin 3 n on/off control function (negative polarity) on pin 3. (12v and 15v models only. case c15 n suf x available for 12v out and 15v out models output input part number structure mechanical specifications pin function p21 1 +input 2 input return 3 on/off control 4 +output 5 output return 6 trim i/o connections ? load regulation is speci ed over 10%-100% load conditions. ? nominal line voltage, no-load/full-load conditions.
uep models 11-18w, single output dc/dc converters 3 performance/functional speci cations typical @ t a = +25? under nominal line voltage and full-load conditions, unless noted. ?? input voltage: continuous: d12 models 22 volts d24 models 44 volts d48 models 88 volts transient (100msec): d12 models 50 volts d24 models 50 volts d48 models 100 volts input reverse-polarity protection current must be <10 amps. brief duration only. fusing recommended. output overvoltage protection: 3.3v outputs 4.5 volts, unlimited duration 5v/12v/15v outputs 6.8/15/18 volts, unlimited duration output current hiccup. devices can withstand sustained output short circuits without damage. case temperature +100? storage temperature ?0 to +105? lead temperature (soldering, 10 sec.) +300? these are stress ratings. exposure of devices to any of these conditions may adversely affect long-term reliability. proper operation under conditions other than those listed in the performance/functional speci cations table is not implied. absolute maximum ratings input input voltage range: d12a models 10-18 volts (12v nominal) d24a models 18-36 volts (24v nominal) d48a models 36-75 volts (48v nominal) overvoltage shutdown: d12a models 18.5-21 volts (20v typical) d24a models 37-40 volts (38v typical) d48a models 77-81 volts (78.5v typical) start-up threshold: ? d12a models 9.3-9.8 volts (9.6v typical) d24a models 16.5-18 volts (17v typical) d48a models 34-36 volts (35v typical) undervoltage shutdown: ? d12a models 7-8.5 volts (8v typical) d24a models 15.5-17.5 volts (16.5v typical) d48a models 32.5-35.5 volts (34.5v typical) input current: normal operating conditions see ordering guide standby mode (off, ov, uv) 5ma input filter type pi reverse-polarity protection brief duration, 10a maximum on/off control (optional, pin 3): ? d12, d24, & d48 models on = open or 13v - +v in , i in = 50? max. off = 0-0.8v, i in = 1ma max. d12n, d24n, & d48n models on = 0-0.5v, i in = 50? max. off = open or 2.4-10v, i in = 3.7ma max. output v out accuracy (50% load): ?.5%, maximum minimum loading: ? 3.3v/5v outputs no load 12v/15v outputs 25ma ripple/noise (20mhz bw) ? ? see ordering guide line/load regulation see ordering guide ef ciency see ordering guide isolation voltage: input-to-output 1500vdc minimum isolation capacitance 470pf isolation resistance 100m ? current limit inception: 3.3v models 5.5-7 amps 5v models 5.5-6 amps 12v models 1.9-2.7 amps 15v models 1.5-2.1 amps short circuit: ? hiccup, inde nite average current 3 amps maximum v out trim range ?% overvoltage protection zener/transorb clamp, magnetic feedback temperature coef cient ?.04% per ?. dynamic characteristics transient response (50-100% load) 200?ec max. to ?.5% of nal value start-up time: ? v in to v out 50msec on/off to v out 30msec switching frequency 340khz (?0khz) environmental operating temperature (ambient): without derating ? ?0 to +60/70? with derating to +100? (see derating curves) case temperature: maximum allowable +100? storage temperature ?0 to +105? physical dimensions 2" x 1" x 0.49" (51 x 25 x 12.45mm) shielding none case material diallyl phthalate, meets en60950 amability requirements pin material brass, solder coated weight 1.4 ounces (39.7 grams) ? all models are speci ed with no external input/output capacitors. ? see minimum output loading requirements under technical notes. ? see technical notes for details. ? the on/off control is designed to be driven with open-collector logic or the application of appropriate voltages (referenced to ?nput (pin 2)). applying a voltage to the on/off control pin when no input voltage is applied to the converter may cause permanent damage. see technical notes. ? output noise may be further reduced with the addition of external output capacitors. see technical notes. ? operating temperature range without derating is model and input-voltage dependent. see temperature derating.
uep series 11-18w, single output dc/dc converters 4 trimming output voltages these converters have a trim capability (pin 6) that allows users to adjust the output voltage ?%. adjustments to the output voltage can be accomplished via a trim pot, figure 2, or a single xed resistor as shown in figures 3 and 4. a single xed resistor can increase or decrease the output voltage depending on its connection. fixed resistors should have an absolute tcr less than 100ppm/? to minimize sensitivity to changes in temperature. a single resistor connected from the trim (pin 6) to the +output (pin 4), see figure 3, will decrease the output voltage. a resistor connected from the trim (pin 6) to ?utput (pin 5) will increase the output voltage. 20k ? 5-22 tu r n s +input +output trim ?input on/off control 1 2 3 4 load ?output 5 6 +input +output trim ?input on/off control 1 2 3 4 load r trim down ?output 5 6 +input +output ?output trim ?input on/off control 1 2 3 4 5 load 6 r trim up figure 2. trim connections using a trim pot figure 4. trim connections to increase output voltage using fixed resistors figure 3. trim connections to decrease output voltage using fixed resistors ?16.9 down r t (k ? ) = 3.3 ? v o 2.49(v o ? 1.27) uep-3.3/4500-d12 uep-3.3/4500-d24 uep-3.3/4500-d48 ?16.9 up r t (k ? ) = v o ? 3.3 3.16 ?15 down r t (k ? ) = 5 ? v o 2.49(v o ? 2.527) uep-5/3500-d12 uep-5/3500-d24 uep-5/3500-d48 ?15 up r t (k ? ) = v o ? 5 6.292 ?49.9 down r t (k ? ) = 12 ? v o 6.34(v o ? 5.714) uep-12/1400-d12 uep-12/1400-d24 uep-12/1400-d48 ?49.9 up r t (k ? ) = v o ? 12 36.23 ?63.4 down r t (k ? ) = 15 ? v o 7.87(v o ? 7.136) uep-15/1200-d12 uep-15/1200-d24 uep-15/1200-d48 ?63.4 up r t (k ? ) = v o ? 15 56.16 accuracy of adjustment is subject to tolerances or resistor values and factory-adjusted output accuracy. v o = desired output voltage. model trim equation technical notes floating outputs since these are isolated dc/dc converters, their outputs are " oating." designers will usually use the ?utput (pin 5) as the ground/return of the load circuit. you can, however, use the +output (pin 4) as ground/return to effectively reverse the output polarity. minimum output loading requirements 3.3 and 5v models employ a synchronous-recti er design topology. all models regulate within spec and are stable under no-load conditions. 12/15v models employ a traditional forward, diode-recti cation architecture and require 25ma loading to achieve their listed regulation specs. operation under 25ma load conditions will not damage the 12/15v devices; however they may not meet all listed speci cations. filtering and noise reduction all uep series dc/dc converters achieve their rated ripple and noise speci cations with no external input/output capacitors. in critical applications, input/output noise may be further reduced by installing external i/o caps. input capacitors should be selected for bulk capacitance, low esr and high rms-ripple-current ratings. output capacitors should be selected for low esr and appropriate frequency response. all caps should have appropriate volt- age ratings and be mounted as close to the converters as possible. the most effective combination of external i/o capacitors will be a function of your particular load and layout conditions. our applications engineers recom- mend potential solutions and can discuss the possibility of our modifying a given device s internal ltering to meet your speci c requirements. contact our applications engineering group for additional details. input fusing certain applications and/or safety agencies may require the installation of fuses at the inputs of power conversion components. fuses should also be used if the possibility of sustained, non-current-limited, input-voltage polarity reversals exists. for datel uer 11-18 watt dc/dc converters, you should use slow-blow type fuses with values no greater than the following. v in range fuse value d12 models 3 amps d24 models 2 amps d48 models 1 amp trim adjustment greater than 5% can have an adverse effect on the convert- er's performance and is not recommended.
uep models 11-18w, single output dc/dc converters start-up threshold and undervoltage shutdown under normal start-up conditions, uep dc/dc converters will not begin to regulate properly until the ramping input voltage exceeds the start-up threshold. once operating, devices will turn off when the applied voltage drops below the undervoltage shutdown point. devices will remain off as long as the undervoltage condition continues. units will automatically re-start when the applied voltage is brought back above the start-up threshold. the hysteresis built into this function avoids an indeterminate on/off condition at a single input voltage. see performance/functional speci cations table for actual limits. on/off control the input-side, remote on/off control function (pin 4) can be ordered to operate with either polarity (12 and 15 volt models only). positive-polarity devices (standard, no part-number suf x) are enabled when pin 3 is left open or is pulled high (+13v to v in applied with respect to ?nput, pin 2, (see figure 2). positive-polarity devices are disabled when pin 5 is pulled low (0-0.8v with respect to ?nput). negative-polarity devices are off when pin 3 is open or pulled high (+2.4v to +10v), and on when pin 3 is pulled low (0-0.5v). see figure 3. dynamic control of the remote on/off function is best accomplished with a mechanical relay or an open-collector/open-drain drive circuit (optically isolated if appropriate). the drive circuit should be able to sink appropriate current (see performance specs) when activated and withstand appropriate voltage when deactivated. applying an external voltage to pin 3 when no input power is applied to the converter can cause permanent damage to the converter. sync function (optional) contact datel for further information. start-up time the v in to v out start-up time is the interval of time where the input voltage crosses the turn-on threshold point, and the fully loaded output voltage enters and remains within its speci ed accuracy band. actual measured times will vary with input source impedance, external input/output capac- itance, and l oad. the uhe series implements a soft start circuit that limits the duty cycle of the pwm controller at power up, thereby limiting the input inrush current. the on/off control to v out start-up time assumes the converter has its nominal input voltage applied but is turned off via the on/off control pin. the speci cation de nes the interval between the time at which the converter is turned on and the fully loaded output voltage enters and remains within its speci ed accuracy band. similar to the v in to v out start-up, the on/off control to v out start-up time is also governed by the internal soft start circuitry and external load capacitance. input overvoltage/undervoltage shutdown and start-up threshold under normal start-up conditions, devices will not begin to regulate until the ramping-up input voltage exceeds the start-up threshold voltage (35v for "d48" models). once operating, devices will not turn off until the input volt- age drops below the undervoltage shutdown limit (34v for "d48" models). subsequent re-start will not occur until the input is brought back up to the start-up threshold. this built in hysteresis prevents any unstable on/off situations from occurring at a single input voltage. input voltages exceeding the input overvoltage shutdown speci cation listed in the performance/functional speci cations will cause the device to shut- down. a built-in hysteresis of 0.6 to 1.6 volts for all models will not allow the converter to restart until the input voltage is suf ciently reduced. input reverse-polarity protection if the input-voltage polarity is accidentally reversed, an internal diode will become forward biased and likely draw excessive current from the power source. if the source is not current limited (<10a) nor the circuit appropriately fused, it could cause permanent damage to the converter. current limiting when output increases to 120% to 19 0% of the rated output current, the dc/dc converter will go into a c urrent limiting mode. in this condition the output voltage will decrease proportionately with increases in output cur- rent, thereby maintaining a somewhat constant power dissipation. this is commonly referred to as power limiting. current limit inception is de ned as the point where the full-power output voltage falls below the speci ed tolerance. see performance/functional speci cations. if the load current being drawn from the converter is signi cant enough, the unit will go into a short circuit condition. see "short circuit condition." 3 2 1 200k +input 13v circuit 5v circuit ?input on/off control 3 2 1 +input ?input on/off control figure 2. driving the positive polarity on/off control pin figure 3. driving the negative polarity on/off control pin 5
uep series 11-18w, single output dc/dc converters short circuit condition when a converter is in current limit mode the output voltages will drop as the output current demand increases. if the output voltage drops too low, the magnetically coupled voltage used to develop primary side voltages will also drop, thereby shutting down the pwm controller. following a time-out period, the pwm will restart, causing the output voltage to begin ramping to its appropriate value. if the short-circuit condition per- sists, another shutdown cycle will be initiated. this on/off cycling is referred to as "hiccup" mode. the hiccup cycling reduces the average output current, thereby preventing internal temperatures from rising to excessive levels. the uep is capable of enduring an inde nite short circuit output condition. thermal shutdown these uep converters are equipped with thermal shutdown circuitry. if environmental conditions cause the internal temperature of the dc/dc converter rises above the designed operating temperature, a precision tem- perature sensor will power down the unit. when the internal temperature decreases below the threshold of the temperature sensor the unit will self start. see performance/functional speci cations. output overvoltage protection uep output voltages are monitored for an overvoltage condition via a comparator which is optically coupled to the primary side. if the output voltage should rise to a level which could be damaging to the load circuitry, the sensing circuitry will power down the pwm controller causing the output voltages to decrease. following a time-out period the pwm will restart, causing the output voltages to ramp to their appropriate values. if the fault condition persists, and the output voltages again climb to excessive levels, the overvoltage circuitry will initiate another shutdown cycle. this on/off cycling is referred to as "hiccup" mode. temperature derating output power (watts) ambient temperature ( ? c) temperature derating curves for 3.3v output models 17.5 15 12.5 10 7.5 5 2.5 0 ?400 404550556065707580859095100 v in = 18v-27v (d24) v in = 36v-48v (d48) v in = 18v-30v (d24) v in = 36v-60v (d48) v in = 12v (d12) v in = 18v-36v (d24) v in = 36v-75v (d48) output power (watts) ambient temperature ( ? c) temperature derating curves for 5v output models 20 17.5 15 12.5 10 7.5 5 2.5 0 ?400 404550556065707580859095100 v in = 18v-27v (d24) v in = 36v-48v (d48) v in = 18v-30v (d24) v in = 36v-60v (d48) v in = 12v (d12) v in = 18v-36v (d24) v in = 36v-75v (d48) output power (watts) ambient temperature ( ? c) temperature derating curves for 12v output models 18 16 14 12 10 8 6 4 2 0 ?400 404550556065707580859095100 v in = 18v-27v (d24) v in = 36v-48v (d48) v in = 18v-30v (d24) v in = 36v-60v (d48) v in = 12v (d12) v in = 18v-36v (d24) v in = 36v-75v (d48) output power (watts) ambient temperature ( ? c) temperature derating curves for 15v output models 20 18 16 14 12 10 8 6 4 2 0 ?400 404550556065707580859095100 v in = 18v-27v (d24) v in = 36v-48v (d48) v in = 18v-30v (d24) v in = 36v-60v (d48) v in = 12v (d12) v in = 18v-36v (d24) v in = 36v-75v (d48) 6
uep models 11-18w, single output dc/dc converters efficiency vs. line and load 7 90 85 80 75 70 65 60 55 50 45 40 uep-3.3/4500-d12 efficiency vs. line voltage and load current 0.4 0.91 1.43 1.94 2.45 2.96 3.48 3.99 4.5 load current (amps) efficiency ( % ) v in = 10v v in = 12v v in = 18v 90 85 80 75 70 65 60 55 50 45 40 uep-3.3/4500-d24 efficiency vs. line voltage and load current 0.4 0.91 1.43 1.94 2.45 2.96 3.48 3.99 4.5 load current (amps) efficiency ( % ) v in = 18v v in = 24v v in = 36v 90 85 80 75 70 65 60 55 50 45 40 uep-3.3/4500-d48 efficiency vs. line voltage and load current 0.4 0.91 1.43 1.94 2.45 2.96 3.48 3.99 4.5 load current (amps) efficiency ( % ) v in = 36v v in = 48v v in = 75v 90 85 80 75 70 65 60 55 50 45 40 uep-5/3500-d12 efficiency vs. line voltage and load current 0.3 0.7 1.1 1.5 1.9 2.3 2.7 3.1 3.5 load current (amps) efficiency ( % ) v in = 10v v in = 12v v in = 18v 90 85 80 75 70 65 60 55 50 45 40 uep-5/3500-d24 efficiency vs. line voltage and load current 0.3 0.7 1.1 1.5 1.9 2.3 2.7 3.1 3.5 load current (amps) efficiency ( % ) v in = 18v v in = 24v v in = 36v 90 85 80 75 70 65 60 55 50 45 40 uep-5/3500-d48 efficiency vs. line voltage and load current 0.3 0.7 1.1 1.5 1.9 2.3 2.7 3.1 3.5 load current (amps) efficiency ( % ) v in = 36v v in = 48v v in = 75v
uep series 11-18w, single output dc/dc converters 8 efficiency vs. line and load 90 85 80 75 70 65 60 55 uep-12/1400-d12 efficiency vs. line voltage and load current 0.10 0.26 0.43 0.59 0.75 0.91 1.06 1.24 1.40 load current (amps) efficiency ( % ) v in = 10v v in = 12v v in = 18v 90 85 80 75 70 65 60 55 uep-12/1400-d24 efficiency vs. line voltage and load current 0.10 0.26 0.43 0.59 0.75 0.91 1.06 1.24 1.40 load current (amps) efficiency ( % ) v in = 18v v in = 24v v in = 36v 90 85 80 75 70 65 60 55 50 45 uep-12/1400-d48 efficiency vs. line voltage and load current 0.10 0.26 0.43 0.59 0.75 0.91 1.06 1.24 1.40 load current (amps) efficiency ( % ) v in = 36v v in = 48v v in = 75v 90 85 80 75 70 65 60 55 uep-15/1200-d12 efficiency vs. line voltage and load current 0.10 0.24 0.38 0.51 0.65 0.79 0.93 1.06 1.2 load current (amps) efficiency ( % ) v in = 10v v in = 12v v in = 18v 90 85 80 75 70 65 60 55 uep-15/1200-d24 efficiency vs. line voltage and load current 0.10 0.24 0.38 0.51 0.65 0.79 0.93 1.06 1.2 load current (amps) efficiency ( % ) v in = 18v v in = 24v v in = 36v 90 85 80 75 70 65 60 55 50 uep-15/1200-d48 efficiency vs. line voltage and load current 0.10 0.24 0.38 0.51 0.65 0.79 0.93 1.06 1.2 load current (amps) efficiency ( % ) v in = 36v v in = 48v v in = 75v
a series 9-15w, single output dc/dc converters 9 datel makes no representation that the use of its products in the circuits described herein, or the use of other technical info rmation contained herein, will not infringe upon existing or future patent rights. the descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. speci? cations are subject to change without notice. the datel logo is a registered datel, inc. trademark. datel (uk) ltd. tadley, england tel: (01256)-880444 datel s.a.r.l. montigny le bretonneux, france tel: 01-34-60-01-01 datel gmbh mnchen, germany tel: 89-544334-0 datel kk tokyo, japan tel: 3-3779-1031, osaka tel: 6-6354-2025 ds-0502 9/01 datel, inc. 11 cabot boulevard, mans? eld, ma 02048-1151 tel: (508) 339-3000 (800) 233-2765 fax: (508) 339-6356 internet: www.datel.com email: sales@datel.com data sheet fax back: (508) 261-2857 innovation and ex c ell e n c e ? ? iso-9001 registered typical performance curves output ripple and noise (pard) (v in = nominal, 12v @ 1.4a, no external capacitors.) 20mv/div, 20mhz bw output ripple and noise (pard) (v in = nominal, 15v @ 1.2a, no external capacitors.) 20mv/div, 20mhz bw output ripple and noise (pard) (v in = nominal, 5v @ 3.5a, no external capacitors.) 20mv/div, 20mhz bw output ripple and noise (pard) (v in = nominal, 3.3v @ 4.5a, no external capacitors.)
|
