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mic2210 dual cap ldo with open-drain driver mlf and micro leadfram 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 november 2006 1 m9999-112006 general description the mic2210 is a dual cap, low dropout regulator with an open-drain driver and power-on reset circuit. the first regulator is capable of sourcing 150ma, while the second regulator can source up to 300ma and includes a power- on reset function. the open-drain output is capable of sinking 150ma for led backlighting applications. ideal for battery operated applic ations, the mic2210 offers 1% accuracy, extremely low dropout voltage (80mv @ 100ma), and extremely low ground current, only 48a total. equipped with a ttl logic compatible enable pin*, the mic2210 can be put into a zero-off-mode current state, drawing no current when disabled. the mic2210 is a cap design, operating with very small ceramic output capacitors fo r stability, reducing required board space and component cost. the mic2210 is available in fixed output voltages in the 10-pin 3mm 3mm mlf ? leadless package. data sheets and support doc umentation can be found on micrel?s web site at www.micrel.com. *for each output. features ? input voltage range: 2.25v to 5.5v ? stable with ceramic output capacitor ? 2 ldo outputs ? output 1 - 150ma output current ? output 2 - 300ma output current ? 1 open-drain driver ? low dropout voltage of 80mv @ 100ma ? ultra-low quiescent current of 48a ? high output accuracy: ? +1.0% initial accuracy ? +2.0% over temperature ? thermal shutdown protection ? current limit protection ? tiny 10-pin 3mm 3mm mlf ? package applications ? cellular/pcs phones ? wireless modems ? pdas ___________________________________________________________________________________________________________ typical application vin c byp en1 en2 cbyp sw led x10 keyboard backlight baseband ic vout1 audio amp vout2 err drv gnd mic2210-xx_ml mic2210 typical cell phone application
micrel, inc. mic2210 november 2006 2 m9999-112006 ordering information part number full manufacturing pb-free voltage* (vo1/vo2) junction temp. range package mic2210-1.5/2.8bml mic2210-fm bml mic2210-fmyml 1.5v/2.8v ?40 to +125c 10-pin 3x3 mlf ? mic2210-1.8/3.3bml mic2210-g sbml mic2210-gsyml 1.8v/3.3v ?40 to +125c 10-pin 3x3 mlf ? mic2210-2.8/1.6bml mic2210-mwbml mic2210-mw yml 2.8v/1.6v ?40 to +125c 10-pin 3x3 mlf ? mic2210-2.8/3.0bml mic2210-m pbml MIC2210-MPYML 2.8v/3.0v ?40 to +125c 10-pin 3x3 mlf ? mic2210-3.0/3.3bml mic2210-psbml mic2210-psy ml 3.0v/3.3v ?40 to +125c 10-pin 3x3 mlf ? mic2210-3.3/3.3bml mic2210-ssbml mic2210-ssy ml 3.3v/3.3v ?40 to +125c 10-pin 3x3 mlf ? * for other output voltage options, contact micrel for details. voltage code adj. a 1.5 f 1.6 w 1.8 g 1.85 d 1.9 y 2.0 h 2.1 e 2.5 j 2.6 k 2.7 l 2.8 m 2.85 n 2.9 o 3.0 p 3.1 q 3.2 r 3.3 s 3.4 t 3.5 u 3.6 v table 1. voltage codes
micrel, inc. mic2210 november 2006 3 m9999-112006 pin configuration 1 vin en1 en2 byp sw 10 vout1 vout2 err drv gnd 9 8 7 6 2 3 4 5 10-pin 3mm x 3mm mlf ? (ml) (top view) pin description pin number pin name pin function 1 vin supply input: (vin1 and vin2 are internally tied together.) 2 en1 enable input to regulator 1: enables regulator 1 output. active high input. high = on, low = off. do not leave floating. 3 en2 enable input to regulator 2: enables regulator 2 output. active high input. high = on, low = off. do not leave floating. 4 cbyp reference bypass: connect external 0.01f to gnd to reduce output noise. may be left open. 5 sw active high signal drives open-drain n-channel mosfet. 6 gnd ground: connect externally to exposed pad. 7 drv open-drain output: capable of sinking 150ma. 8 err error flag output: open-drain outpu t. active low indicates an output undervoltage condition on regulator 2. 9 vout2 output of regulato r 2: 300ma output current. 10 vout1 output of regulato r 1: 150ma output current. ep gnd ground: internally connected to the ex posed pad. connect externally to pin 6.
micrel, inc. mic2210 november 2006 4 m9999-112006 absolute maximum ratings (1) supply voltage (v in ) ............................................... 0v to 7v enable voltage (v en ).............................................. 0v to 7v power dissipation (p d ) ........................... internally limited (3) lead temperature (solde ring, 5 se c.) ........................ 260c junction temperature (t j ) ........................?40c to +125c storage temperature (t s ) .........................?65c to +150c operating ratings (2) supply voltage (v in )....................................... 2.25v to 5.5v enable voltage (v en ).............................................. 0v to v in junction temperature (t j ) ........................ ?40c to +125c package thermal resistance mlf-10 ( ja ) 1? square 2oz. copper ..................60c/w electrical characteristics (4) v in = v out + 1v for higher output of the regulator pair; c out = 1f, i out = 100a; t j = 25c, bold values indicate ?40c< t j < +125c, unless noted. parameter condition min typ max units output voltage accuracy variation from nominal v out ?1 ?2 +1 +2 % % output voltage temp. coefficient 40 ppm/c line regulation; note 5 v in = v out +1v to 5.5v ?0.3 ?0.6 0.02 +0.3 +0.6 %/v %/v i out = 100a to 150ma (regulator 1 and 2) 0.2 1 % load regulation i out = 100a to 300ma (regulator 2) 1.5 % i out = 150ma (regulator 1 and 2) 120 190 250 mv mv dropout voltage; note 6 i out = 300ma (regulator 2) 240 340 420 mv mv i out1 = i out2 = 0a 48 65 80 a a ground pin current i out1 = 150ma & i out2 = 300ma 60 a ground pin current in shutdown v en 0.4v 2 a f = 1khz; c out = 1.0f ceramic; c byp = 10nf 60 db ripple rejection f = 20khz; c out = 1.0f ceramic; c byp = 10nf 40 db v out = 0v (regulator 1) 150 280 460 ma current limit v out = 0v (regulator 2) 300 450 700 ma output voltage noise c out =1f, c byp =0.01f, 10hz to 100khz 30 vrms enable output logic low (regulator shutdown) 0.6 v enable input voltage logic high (regulator enabled) 1.8 v v il < 0.6v (regulator shutdown) ?1 0.01 +1 a enable input current v ih > 1.8v (regulator enabled) ?1 0.01 +1 a error flag output (ldo2) low threshold, % of nominal v out2 (flag on) 90 % verr high threshold, % of nominal v out2 (flag off) 96 % vol flag output logic low voltage; i l = 100a 0.02 0.1 mv ierr flag leakage current, flag off ?1 0.01 +1 a
micrel, inc. mic2210 november 2006 5 m9999-112006 parameter condition min typ max units drv output voltage low i drv = 150ma 0.2 0.5 0.6 v leakage current i drv = 0ma, v drv = 5.5v, sw = 0v ?1 0.01 +1 a logic low (drv shutdown) 0.6 v sw input voltage logic high (drv enabled) 1.8 v v il < 0.6v (drv shutdown) ?1 0.01 +1 a sw input current v ih > 1.8v (drv enabled) ?1 0.01 +1 a notes: 1. exceeding the 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 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. specification for packaged product only. 5. minimum input for line regulation test is set to v out + 1v relative to the highest output voltage. 6. dropout voltage is defined as the input-to-output differentia l at which the output voltage drops 2% below its nominal value measured at 1vdifferential. for outputs below 2.25v, dropout voltage is the input-t o-output voltage differential with the minimum input voltage 2.25v. minimum input operating voltage is 2.25v.
micrel, inc. mic2210 november 2006 6 m9999-112006 typical characteristics
micrel, inc. mic2210 november 2006 7 m9999-112006 typical characteristics (cont.)
micrel, inc. mic2210 november 2006 8 m9999-112006 functional characteristics
micrel, inc. mic2210 november 2006 9 m9999-112006 functional diagram out1 out2 err drv ngnd gnd sw cbyp en2 en1 vin ldo1 ldo2 reference error comparator mic2210 fixed voltage block diagram
micrel, inc. mic2210 november 2006 10 m9999-112006 functional description the mic2210 is a high performance, low quiescent current power management ic consisting of two cap low dropout regulators, an open-drain driver. the first regulator is capable of sourcing 150ma at output voltages from 1.25v to 5v. the second regulator is capable of sourcing 300ma of current at output voltages from 1.25v to 5v. an open-drain driver completes the power management chipset, o ffering the capability of driving leds for keypad backlighting in applications such as cell phones. enable 1 and 2 the enable inputs allow for l ogic control of both output voltages with individual enable inputs. the enable input is active high, requiring 1. 8v for guaranteed operation. the enable input is cmos logic and cannot by left floating. open-drain driver (drv) the drive (drv) pin is an open-drain output capable of sinking 150ma of current. this output is controlled by a logic level input, the switch (sw) pin. the switch pin is an active high input and cannot be left floating. input capacitor good bypassing is recommended from input to ground to help improve ac performance. a 1f capacitor or greater located close to the ic is recommended. bypass capacitor the internal reference voltage of the mic2210 can be by-passed with a capacitor to ground to reduce output noise and increase power supply rejection (psrr). a quick-start feature allows for quick turn-on of the output voltage regardless of the size of the capacitor. the recommended nominal bypass capacitor is 0.01f, but it can be increased without limit. output capacitor each regulator output requi res a 1f ceramic output capacitor for stability. the out put capacitor value can be increased to improve transient response, but perform- ance has been optimized for a 1f ceramic type output capacitor. x7r/x5r dielectric-type ceramic capacitors are recom- mended because of their temperature performance. x7r-type capacitors change c apacitance 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 a x7r ceramic capacitor to ensure the same minimum capaci- tance over the equivalent oper ating temperature range.
micrel, inc. mic2210 november 2006 11 m9999-112006 package information 10-pin 3mm x 3mm mlf ? (ml) 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 personal injury. life suppo rt devices or systems 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. ? 2002 micrel, incorporated.

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