View MIC5338-4CYMT_4103265.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

mic5338/9 dual 300ma cap ldo in 1.6mm x 1.6mm thin mlf ? 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 june 2010 m9999-063010-a general description the mic5338/9 is an advanced dual 300ma ldo ideal for powering general purpose portable devices requiring low output noise and excellent power supply rejection ratio (psrr). the mic5338/9 provides two independently controlled, high performance, 300ma ldos in a tiny 1.6mm x 1.6mm thin mlf ? package. the mic5338/9 provides two low noise outputs with fast transient response. additionally the mic5338/9 provides low quiescent current operation, using only 70 a with both outputs enabled. the mic5339 also incorporates an active discharge feature that pulls down the output of the regulator when the part is disabled. the mic5338/9 is available in fixed output voltages in a lead-free (rohs compliant) 6-pin 1.6mm x 1.6mm thin mlf ? leadless package. data sheets and support documentation can be found on micrel?s web site at www.micrel.com. features ? 2.5v to 5.5v input voltage range ? two 300ma outputs ? high output accuracy ? 2% ? low quiescent current ? 70a total ? stable with ceramic output capacitors ? independent enable pins ? low dropout voltage ? 220mv at 300ma ? low output noise ? thermal shutdown protection ? current limit protection ? output discharge circuit ? mic5339 ? 6-pin 1.6mm x 1.6mm thin mlf ? package applications ? mobile phones ? camera phones ? gps, pmp, pdas and handhelds ? portable electronics ___________________________________________________________________________________________________________ typical application camera module power supply
micrel, inc. mic5338/9 june 2010 2 m9999-063010-a ordering information part number manufacturing part number marking code voltage (1 ) junction temp. range package (2) lead finish (3) mic5338-3.3/2.8ymt 1 mic5338-smymt s82 3.3v/2.8v ?40 to +125c 6-pin 1.6x1.6 thin mlf ? pb-free mic5338-2.8/1.8ymt mic5338-mgymt s83 2.8v/1.8v ?40 to +125c 6-pin 1.6x1.6 thin mlf ? pb-free mic5338-2.8/1.2ymt 1 mic5338-m4ymt s84 2.8v/1.2v ?40 to +125c 6-pin 1.6x1.6 thin mlf ? pb-free mic5338-1.8/1.2ymt 1 mic5338-g4ymt s85 1.8v/1.2v ?40 to +125c 6-pin 1.6x1.6 thin mlf ? pb-free mic5338-1.2/1.0ymt 1 MIC5338-4CYMT s86 1.2v/1.0v ?40 to +125c 6-pin 1.6x1.6 thin mlf ? pb-free mic5339-3.3/2.8ymt* 1 mic5339-smymt s92 3.3v/2.8v ?40 to +125c 6-pin 1.6x1.6 thin mlf ? pb-free mic5339-2.8/1.8ymt* mic5339-mgymt s93 2.8v/1.8v ?40 to +125c 6-pin 1.6x1.6 thin mlf ? pb-free mic5339-2.8/1.2ymt* 1 mic5339-m4ymt s94 2.8v/1.2v ?40 to +125c 6-pin 1.6x1.6 thin mlf ? pb-free mic5339-1.8/1.2ymt* 1 mic5339-g4ymt s95 1.8v/1.2v ?40 to +125c 6-pin 1.6x1.6 thin mlf ? pb-free mic5339-1.2/1.0ymt* 1 mic5339-4cymt s96 1.2v/1.0v ?40 to +125c 6-pin 1.6x1.6 thin mlf ? pb-free note: 1. contact micrel for availability. 2. thin mlf ? pin 1 identifier= ? ? 3. thin mlf ? is a green rohs compliant package. level fini sh is nipdau. mold compound is halogen free. * mic5339 offers auto-discharge function. pin configuration 6-pin 1.6mm x 1.6mm thin mlf ? (mt) pin description pin number pin name pin function 1 vin supply input. 2 gnd ground. 3 en2 enable input ldo2. acti ve high input. logic high = on; logic low = off; do not leave floating. 4 en1 enable input ldo1. acti ve high input. logic high = on; logic low = off; do not leave floating. 5 vout2 ldo2 output. 6 vout1 ldo1 output. epad hspad heatsink pad. connect to ground.
micrel, inc. mic5338/9 june 2010 3 m9999-063010-a absolute maximum ratings (1) supply voltage (v in ) ........................................ ?0.3v to +6v enable voltage (v en1, v en2 ). .............................. ?0.3v to v in power dissipation (p d ) ........................... internally limited (3) lead temperature (solde ring, 10sec .)....................... 260c junction temperature (t j ) ........................?40c to +125c storage temperature (t s ) .........................?65c to +150c esd rating (4) ................................................. esd sensitive operating ratings (2) supply voltage (v in )....................................... +2.5v to 5.5v enable voltage (v en1, v en2 ). ................................... 0v to v in junction temperature (t j ) ........................ ?40c to +125c junction thermal resistance 1.6mm x 1.6mm thin mlf ? ( ja ) ...................92.4c/w electrical characteristics (5) v in = v en1 = v en2 = v out + 1v; higher of the two outputs; i outldo1 = i outldo2 = 100a; c out1 = c out2 = 1f; t j = 25c, bold values indicate ?40c to +125c, unless noted. parameter condition min typ max units variation from nominal v out -2.0 +2.0 % output voltage accuracy variation from nominal v out -3.0 +3.0 % line regulation v in = v out +1v to 5.5v, i out = 100a 0.02 0.3 %/v load regulation i out = 100a to 300ma 0.3 1 % dropout voltage i out = 50ma i out = 300ma 35 220 65 380 mv mv ground pin current v en1 = high; v en2 = low; i out1 = 0ma v en1 = low; v en2 = high; i out2 = 0ma v en1 = v en2 = high; i out1 = i out2 = 0ma v en1 = high; v en2 = low; i out1 = 300ma v en1 = low; v en2 = high; i out2 = 300ma v en1 = v en2 = high; i out1 = i out2 = 300ma 38 38 70 55 55 105 58 58 110 70 70 135 a a a a a a shutdown current v en1 = v en2 0.2v 0.05 1 a ripple rejection f = 1khz; c out = 1f 55 db current limit v out = 0v 325 500 680 ma output voltage noise c out = 1f, 10hz to 100khz 200 v rms auto-discharge nfet resistance mic5339 only; v en1 = v en2 = 0v; v in = 3.6v; i out = -3ma 30 ? enable inputs (en1/en2) logic low 0.2 v enable input voltage logic high 1.2 v v il 0.2v 0.01 1 a enable input current v ih 1.2v 0.01 1 a turn-on time 50 125 s notes: 1. exceeding the absolute maxi mum rating may damage the device. 2. the device is not guaranteed to function outside its operating rating. 3. the maximum allowable power dissipation of any t a (ambient temperature) is p d(max) =(t j(max) ? t a ) / ja . exceeding the maximum allowable power dissipation will result in excessive die temper ature, and the regulator will go into thermal shutdown. 4. devices are esd sensitive. handling precautions recommended. human body model, 1.5k ? in series with 100pf. 5. specification for packaged product only.
micrel, inc. mic5338/9 june 2010 4 m9999-063010-a typical characteristics power supply rejection ratio -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 10 100 1,000 10,000 100,000 1,000,000 10,000,000 frequency (hz) db 300ma no-load 150ma v in =v en =3.8v v out =1.8v c out =1 f 10 100 1k 10k 100k 1m 10m output voltage v s. input voltage 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 2.5 3.0 3.5 4.0 4.5 5.0 5.5 input voltage (v) output voltage (v) 100 a 300ma c in =c out =1 f output voltage vs. input voltage 1.4 1.6 1.8 2.0 2.2 2.4 2.5 3.0 3.5 4.0 4.5 5.0 5.5 input voltage (v) output voltage (v) 100 a 300ma c in =c out =1 f output voltage vs. output current 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 0 50 100 150 200 250 300 output current (ma) output voltage (v) v in =3.8v c in =c out =1 f ground current vs. input voltage (single output) 0 10 20 30 40 50 60 70 2.5 3.0 3.5 4.0 4.5 5.0 5.5 input voltage (v) ground current ( a) v out =2.8v c in =c out =1 f v en2 =gnd,v en1 =v in no load 300ma ground current v s. input voltage (dual outputs) 0 20 40 60 80 100 120 140 2.5 3.0 3.5 4.0 4.5 5.0 5.5 input voltage (v) ground current ( a) 300ma no load v out1 =2.8v, v out2 =1.8 v c in =c out =1 f v en1 =v en2 =v in ground current vs. output current 0 20 40 60 80 100 120 0 50 100 150 200 250 300 output current (ma) ground current ( a) dual outputs single output v in =3.8v c in =c out =1 f ground current vs. temperature (single output) 0 10 20 30 40 50 60 -40 -20 0 20 40 60 80 100 120 temperature (c) ground current ( a) 300ma no load v out1 =2.8v v en1 =v in =3.8v v en2 =gnd c in =c out =1 f ground current vs. temperature (dual outputs) 0 10 20 30 40 50 60 70 80 90 100 -40-200 20406080100120 temperature (c) ground current ( a) no load 300ma v out1 =2.8v v out2 =1.8v v en1 =v en2 =v in =3.8v c in =c out =1 f dropout voltage vs. temperature 0 50 100 150 200 250 300 -40 -20 0 20 40 60 80 100 120 temperature (c) dropout voltage (mv ) 50ma 150ma 300ma c in =c out =1 f dropout voltage vs. output current 0 20 40 60 80 100 120 140 160 180 200 220 0 50 100 150 200 250 300 output current (ma) dropout voltage (mv ) v out1 =2.8v c in =c out =1 f current limit v s. input voltage 350 400 450 500 550 600 650 700 2.533.544.555.5 input voltage (v) current limit (ma) v out1 =2.8v v out2 =1.8v v in =3.8v c in =c out =1 f
micrel, inc. mic5338/9 june 2010 5 m9999-063010-a output noise spectral density 0.001 0.01 0.1 1 10 100 1,000 10,000 100,000 1,000,000 10,000,000 frequency (hz) noise v/ hz v in =4.5v c out =1f v out1 =2.8v iload=50ma 10 100 1k 10k 100k 1m 10m
micrel, inc. mic5338/9 june 2010 6 m9999-063010-a functional characteristics
micrel, inc. mic5338/9 june 2010 7 m9999-063010-a functional diagrams mic5338 block diagram mic5339 block diagram
micrel, inc. mic5338/9 june 2010 8 m9999-063010-a application information mic5338/9 is a dual 300ma ldo. the mic5339 includes an auto-discharge circuit for each ldo output that is activated when the output is disabled. the mic5338/9 regulator is fully protected from damage due to fault conditions through linear current limiting and thermal shutdown. input capacitor the mic5338/9 is a high performance, high bandwidth device. an input capacitor of 1f from the input pin to ground is required to provi de stability. low esr ceramic capacitors provide optimal performance in small board area. additional high frequency capacitors, such as small valued npo dielectric type capacitors, help filter out high frequency noise and are good practice in any rf based circuit. x5r or x7r dielectrics are recommended for the input capacitor. y5v dielectrics lose most of their capacitance over temperature and are therefore not recommended. output capacitor the mic5338/9 requires an out put capacitor of 1f or greater to maintain stability. the design is optimized for use with low esr ceramic chip capacitors. high esr capacitors may cause high frequency oscillation. the output capacitor can be increased, but performance has been optimized for a 1f ceramic output capacitor and does not improve significantly with larger capacitance. x7r and x5r dielectric ceramic capacitors are recommended because of their temperature performance. x7r capacitors change capacitance by 15% over their operating temperature range and are the most stable type of ceramic capacitors. z5u and y5v dielectric capacitors change value by as much as 50% and 60% respectively over t heir operating temperature ranges. to use a ceramic chip capacitor with y5v dielectric the value must be much higher than an x7r ceramic capacitor to ensure the same minimum capacitance over the equiva lent operating temperature range. no load stability unlike many other voltage regul ators, the mic5338/9 will remain stable and in regulation with no load. enable/shutdown the mic5338/9 comes with two active high enable pins that allow each regulator to be disabled independently. forcing the enable pin low disables the regulator and sends it into an off mode current state drawing virtually zero current. when disabled, the mic5339 switches an internal 30 ? load on the regulator output to discharge the external capacitor. forcing the enable pin high enables the output voltage. the active high enable pin uses cmos technology and cannot be left floating. a floating enable pin may cause an indeterminate state on the output. thermal considerations the mic5338/9 is designed to provide two 300ma continuous current outputs in a very small package. maximum operating temperature can be calculated based on the output currents and the voltage drop across the part. for example, if the input voltage is 3.6v, v out1 = 3.3v, v out2 = 2.8v and each with an output current = 300ma. the actual power dissipation of the regulator circuit can be determined using the equation: p d = (v in ? v out1 ) i out1 + (v in ? v out2 ) i out2 + v in i gnd because this is cmos device and the ground current is typically <100a over the load range, the power dissipation contributed by the ground current is < 1% which can be ignored for this calculation. p d = (3.6v ? 3.3v) 300ma + (3.6v ? 2.8v) 300ma p d = 0.33w to determine the maximum ambient operating temperature of the package, use the junction to ambient thermal resistance of the device and the following basic equation: ? ? ? ? ? ? ? ? ? = ja a j(max) d(max) t t p t j(max) = 125c ja = 92.4c/w substituting p d for p d(max) and solving for the ambient operating temperature will give the maximum operating conditions for the regulator circuit. the junction to ambient thermal resistance for the minimum footprint is 92.4c/w. the maximum power dissipation must not be exceeded for proper operation.
micrel, inc. mic5338/9 june 2010 9 m9999-063010-a for example, when operating a 3.3v/2.8v application with an input voltage of 3.6v and 300ma at each output with a minimum footprint layout, the maximum ambient operating temperature t a can be determined as follows: 0.33w = (125c ? t a )/(92.4c/w) t a = 94.5c therefore, a mic5338-smymt application with 300ma at each output current can accept an ambient operating temperature of 94.5c in a 1.6mm x 1.6mm thin mlf ? package. for a full discussion of heat sinking and thermal effects on voltage regulators refer to the ?regulator thermals? section of micrel?s designing with low-dropout voltage regulators handbook. this information can be found on micrel's website at: http://www.micrel.com/_pdf/other/ldobk_ds.pdf
micrel, inc. mic5338/9 june 2010 10 m9999-063010-a typical application schematic bill of materials item part number manufacturer description qty. c1, c2, c3 grm188r60j225ke19d murata (1) capacitor, 1f ceramic, 6.3v, x5r, size 0603 3 u1 mic5338/9-xxymt micrel (2) dual, 300ma ldo, size 1.6mm x 1.6mm thin mlf ? 1 notes: 1. murata: www.murata.com 2. micrel, inc.: www.micrel.com
micrel, inc. mic5338/9 june 2010 11 m9999-063010-a pcb layout recommendations top layer bottom layer
micrel, inc. mic5338/9 june 2010 12 m9999-063010-a package information 6-pin 1.6mm x 1.6mm thin mlf ? (mt) 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 the information furnished by micrel in this data sheet is belie ved to be accurate and reliable. however, no responsibility is a ssumed by micrel for its use. micrel reserves the right to change circuitry and specifications at any time without notification to the customer. micrel products are not designed or authori zed for use as components in life support app liances, 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 resulting from such use or sale. ? 2010 micrel, incorporated.

▲Up To Search▲

Price & Availability of MIC5338-4CYMT

	To Download MIC5338-4CYMT Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .