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mic5283 120v in , 150ma, ultra-low i q , high-psrr linear regulator mlf and micro leadframe are registered trademarks of amkor technology, inc. micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1 ( 408 ) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com march 2012 m9999-030812-a general description the mic5283 high-performance linear regulator offers a very-wide input operating voltage range, up to 120v dc, and supplies an output current of up to 150ma. ideal for high input voltage applications such as industrial and telecom, the mic5283 offers 3% initial accuracy, extremely high-power supply rejection ratio (75db at 10khz) and an ultra-low quiescent current of 8a. the mic5283 is optimized for high-voltage line transients, making it ideal for harsh environment applications. the mic5283 is offered in both fixed output voltage (3.3v or 5.0v) and adjustable output voltage (1.22v to 5.5v) options. the mic5283 operates over a ? 40c to +125c temperature range and is available in lead-free, rohs- compliant, epad soic-8 and 3mm x 3mm mlf ? packages. data sheet and support documentation are found on the micrel website: www.micrel.com . features ? wide input voltage range: 6v to 120v dc ? ultra-low quiescent current: 8a ? 150ma guaranteed output current ? adjustable output from 1.22v to 5.5v ? stable with ceramic capacitors ? ultra-high psrr (75db at 10khz) ? ultra-high line rejection (load dump) ? high output accuracy: ? 3% initial accuracy ? thermal-shutdown and cu rrent-limit protection ? thermally-efficient, 8-pin epad soic package ? very low-profile 3mm x 3mm mlf ? package applications ? industrial applications ? remote keyless entry power supply ? telecom applications ? off-line power supplies ___________________________________________________________________________________________________________ typical applications
micrel, inc. mic5283 march 2012 2 m9999-030812-a ordering information part number output voltage top mark temperature range package lead finish mic5283yme adjustable 5283yme ?40 ? c to ? 125 ? c 8-pin epad soic pb-free mic5283-3.3yme 3.3v 5283-33yme ?40 ? c to ? 125 ? c 8-pin epad soic pb-free mic5283-5.0yme 5.0v 5283-50yme ?40 ? c to ? 125 ? c 8-pin epad soic pb-free mic5283yml adjustable a83 ?40 ? c to ? 125 ? c 3mmx3mm mlf ? -8l pb-free mic5283-3.3yml 3.3v 8s3 ?40 ? c to ? 125 ? c 3mmx3mm mlf ? -8l pb-free mic5283-5.0yml 5.0v 583 ?40 ? c to ? 125 ? c 3mmx3mm mlf ? -8l pb-free pin configuration 8-pin epad soic mic5283-x.xyme fixed voltage output (top view) 3mm x 3mm mlf ? -8l mic5283-x.xyml fixed voltage output (top view) 8-pin epad soic mic5283yme adjustable voltage output (top view) 3mm x 3mm mlf ? -8l mic5283yml adjustable voltage output (top view)
micrel, inc. mic5283 march 2012 3 m9999-030812-a pin description pin number adjustable output fixed output name function 1 1 vin supply voltage input. connec t 1f capacitor from vin to gnd. 2, 3, 7 2, 3, 7 nc not internally connect ed. connect nc to gnd or leave unconnected. 4 4 cpsrr bypass capacitor connection. conn ect 0.1f capacitor from cpsrr to gnd. 5 5 gnd ground. 6 ? fb feedback connection. for external resistor divider to set v out . ? 6 sns sense input. connect sns to vout. 8 8 vout regulator output. connect 10f capacitor from vout to gnd. ep ep ep exposed pad (epad) for thermal dissipation. connect ep to gnd.
micrel, inc. mic5283 march 2012 4 m9999-030812-a absolute maximum ratings (1) v in to gnd................................................... ?0.3v to +125v v cpsrr to gnd..................................................?0. 3 to +14v v fb , v sns , v out to gnd ................................... ?0.3v to +6v lead temperature (solde ring, 10s) .......................... +260c junction temper ature ......................... ?40c ? t j ? +125c storage temper ature .........................?65c ? t a ? +150c esd ratings (4) hbm ......................................................................... 2kv mm .........................................................................200v operating ratings (2) v in ................................................................. +6v to +120v v out adjust r ange ..................................... +1. 22v to +5.5v junction temper ature ......................... ?40c ? t j ? +125c power dissipation (p d )........................... internally limited (3) junction thermal resistance ( ? ja ) 8-pin epad soic ...............................................41c/w 3mm x 3mm mlf ? -8..........................................60c/w electrical characteristics (5) v in = 12v, c in = 1.0f, c psrr = 0.1f, c out = 10f, v out = 5.0v or 3.3v, i out = 100a, t a = 25c, bold values indicate ?40c ? t j ? +125c, unless noted. parameter condition min. typ. max. units power supply input input voltage range 6 120 v quiescent supply current i out = 0 8 14 a output voltage -3 +3 % output voltage accuracy variation from nominal v out 100a i out 150ma -5 +5 % line regulation (6) 10v v in 120v -0.5 0.04 +0.5 %/v feedback input (adjustable) 1.183 1.220 1.256 fb voltage 100a i out 150ma 1.159 1.220 1.281 v fb current v fb = 1.22v 3.2 na current limit current limit v out = 0v 180 300 500 ma ripple rejection 100hz f 1khz 70 db 1khz < f 30khz 75 db power supply rejection ratio i out = 50ma 30khz < f 100khz 65 db power dropout voltage dropout voltage i out = 150ma 1.8 2.8 v thermal protection thermal-shutdown temperature t j rising 155 ? c thermal-shutdown hysteresis 15 ? c notes: 1. exceeding an absolute maximum rating may damage the device. 2. the device is not guaranteed to function outside its operating rating. 3. the maximum allowable power dissipation at any t a (ambient temperature) is p d(max) = (t j(max) ? t a ) / ja . exceeding the maximum allowable power dissipation results in excessive die temperature, and causes the regulator to enter thermal shutdown. 4. devices are esd sensitive; use proper handling precautions. 5. specifications are for packaged products only. 6. line regulation is a percentage of v out .
micrel, inc. mic5283 march 2012 5 m9999-030812-a typical characteristics
micrel, inc. mic5283 march 2012 6 m9999-030812-a typical characteristics (continued) case temperature* : the temperature measurement was taken at the hottest point on the mic5283 case mounted on a 2.25 square inch pcb at an ambient temperature of 25c; see ?thermal measurement? section. actual results will depend upon the size of the pcb, ambient te mperature and proximity to other heat emitting components.
micrel, inc. mic5283 march 2012 7 m9999-030812-a functional characteristics
micrel, inc. mic5283 march 2012 8 m9999-030812-a functional characteristics (continued)
micrel, inc. mic5283 march 2012 9 m9999-030812-a detailed description the mic5283 voltage regulator ac cepts a 6v to 120v input voltage and has an ultra-low 8a typical quiescent current while offering an excellent line transient response and psrr. these features make it ideal for harsh, noisy environments. all options o ffer 150ma of output current. the mic5283yml and mic5283yme offer an adjustable output voltage from 1.22v to 5.5v. the mic5283-3.3yml and mic5283-3.3yme offer fixed 3.3v outputs and the mic5283-5.0yml and mic5283-5.0yme offer fixed 5.0v outputs. the yme packaged devices feature a heat slug to more effectively remove heat from the die. applications information thermal protection the mic5283 has internal thermal shutdown to protect it from excessive heating of the die. when the junction temperature exceeds approxim ately +155c, the output is disabled and the device begins to cool down. the device turns back on when the junction temperature cools by 15c. this will result in a cycled output during continuous thermal-overload conditions. current limit the mic5283 features output current-limit protection. the output sustains a continuous short circuit to gnd without damage to the device, but therma l shutdown often results. the typical value for the current limit of the mic5283 is 300ma. input capacitor connect a 1.0f capacitor from vin to gnd. micrel recommends the c5750x7r2e105m, 1.0f, 250v capacitor made by tdk. when using a different capacitor, assure that the voltage rating of the capacitor has adequate headroom to withstand any potential transient. cpsrr capacitor to maintain high power supply rejection, connect a 0.1f capacitor from cpsrr to gnd. the voltage rating of the capacitor must be at least 14v. output capacitor connect a 10f capacitor from vout to gnd. assure that the voltage rating of the capacitor exceeds the designed output voltage of the mic5283. output voltage setting for the mic5283yml and mic5283yme, v out is programmable from 1.22v to 5.5v using an external resistive divider. v out is set using the following equation: ? ? ? ? ? ? ? ? ? 1 r2 r1 v v ref out where v ref = 1.22v, and r1 and r2 form the feedback voltage divider from v out to ground. thermal measurements it is always prudent to measure an ic?s case temperature to make sure that it is within operating limits, but it is easy to get erroneous results. the standard thermocouple that comes with many voltage meters uses a large wire gauge that behaves like a heat-sink, resulting in artificially low case temperature measurements. use a thermocouple of 36-gauge wire or smaller, such as the omega (5sc-tt-k- 36-36), to minimize the heat-sinking effect. also, apply a thermal compound to maximize heat transfer between the ic and the thermocouple. an infrared thermometer is a recommended alternative. the ir thermometer from op tris has a 1mm spot size, ideal for monitoring small surface mount packages. also, the optional stand makes it easy to keep the beam on the ic for long periods of time.
micrel, inc. mic5283 march 2012 10 m9999-030812-a functional diagram
micrel, inc. mic5283 march 2012 11 m9999-030812-a mic5283 evaluation board schematic mic5283 evaluation board schematic
micrel, inc. mic5283 march 2012 12 m9999-030812-a bill of materials item part number manufacturer description qty. c1 c5750x7r2e105m tdk (1) 1.0f, 250v, 20%, x7r capacitor (2220) 1 c2 08053c104kat2a avx (2) 0.1f 25v 20%, x7r capacitor (0805) 1 c3 0805zd106kat2a avx (2) 10f, 10v, 20%, x5r, capacitor (0805) 1 r1 crcw06030000f vishay/dale (3) 0 ? , 1% resistor, 0603 1 r2 crcw06032942f vishay/dale (3) 29.4k ? , 1% resistor, 0603 1 r3 crcw06039531f vishay (3) 9.53k ? film resistor, size 0603, 1% 1 r4 crcw06031742f vishay (3) 17.4k ? film resistor, size 0603, 1% 1 r5 crcw06032802f vishay (3) 28.0k ? film resistor, size 0603, 1% 1 r6 crcw06036192f vishay (3) 61.9k ? film resistor, size 0603, 1% 1 u1 mic5283yml micrel (4) 120v in , 150ma, ultra-low i q , high-psrr linear regulator 1 notes: 1. tdk: www.tdk.com . 2. avx.: www.avx.com . 3. vishay tel: www.vishay.com . 4. micrel, inc.: www.micrel.com .
micrel, inc. mic5283 march 2012 13 m9999-030812-a pcb evaluation board layout top layer bottom layer
micrel, inc. mic5283 march 2012 14 m9999-030812-a pcb evaluation board layout (continued) ev board dimensions
micrel, inc. mic5283 march 2012 15 m9999-030812-a package information 8-pin exposed pad soic (me)
micrel, inc. mic5283 march 2012 16 m9999-030812-a package information (continued) 8-pin 3mmx3mm mlf ? (ml)
micrel, inc. mic5283 march 2012 17 m9999-030812-a recommended land pattern 8-pin exposed pad soic
micrel, inc. mic5283 march 2012 18 m9999-030812-a recommended land pa ttern (continued) 8-pin 3mm x 3mm mlf ? red circle indicates thermal via. size should be .300mm ? .350mm in diameter, 1.00mm pitch, and it should be connected to gnd plane for maximum thermal performance.
micrel, inc. mic5283 march 2012 19 m9999-030812-a micrel, inc. 2180 fortune drive san jose, ca 95131 usa tel +1 (408) 944-0800 fax +1 (408) 474-1000 web http://www.micrel.com micrel makes no representations or warrantie s with respect to the accuracy or comple teness of the information furnished in this data sheet. this information is not intended as a warranty and micrel does not assume responsibility for it s use. micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. no license, whether express, implied, arising by estoppel or other wise, to any intellectual property rights is granted by this document. except as provided in micrel?s terms and conditions of sale for such products, mi crel assumes no liability whatsoever, and micrel disclaims any express or implied warranty relating to the sale and/or use of micrel products including l iability or warranties relating to fitness for a particular purpose, merchantability, or infringement of an y patent, copyright or other intellectual p roperty right. micrel products are not designed or authorized for use as components in life suppor t appliances, devices or systems where malfu nction of a product can reasonably be expected to result in pers onal injury. life support devices or system s are devices or systems that (a) are in tended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significan t injury to the user. a purchaser?s use or sale of micrel produc ts for use in life support app liances, devices or systems is a purchaser?s own risk and purchaser agrees to fully indemnify micrel for any damages re sulting from such use or sale. ? 2012 micrel, incorporated.

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