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october 2005 1 m9999-101705 mic2213 micrel, inc. mic2213 sequenced portable power management ic general description the mic2213 is a dual cap low dropout regulator with an open-drain driver and power-on reset circuit. the ?rst regula - tor is capable of sourcing 150ma, while the second regulator can source up to 300ma. a power-on reset function monitors both outputs, indicating a fault on either output 1 or output 2. the open-drain output is capable of sinking 150ma for led backlighting applications. the mic2213 adds the additional feature of sequencing between the outputs, with the output of regulator 1 having to settle before the output of regulator 2 can begin to turn-on. ideal for battery operated applications, the mic2213 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 mic2213 can be put into a zero-off-mode current state, drawing no current when disabled. the mic2213 is a cap design, operating with very small ceramic output capacitors for stability, reducing required board space and component cost. the mic2213 is available in ?xed output voltages in the 10-pin 3mm 3mm mlf? leadless package and is also available with adjustable output voltages in the 4mm 4mm 16-pin mlf? package. typical application vin v in c del a y en cbyp sw 0.01f 1f 100k? set keyboard backlighting led baseband vout1 v analog vout2 por v digi t a l v core /rst d r v gnd mic2213-xxbml 1f off on off on memo r y ceramic processor mic2213 typical cellphone application features ? 2 ldo outputs ? output 1 - 150ma output current ? output 2 - 300ma output current ? 1 open-drain driver ? power-on reset function with adjustable delay time ? sequencing between outputs 1 and 2 ? input voltage range: 2.25v to 5.5v ? stable with ceramic output capacitor ? 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 3mm 3mm mlf?-10 package applications ? cellular/pcs phones ? wireless modems ? pdas micrel, inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel + 1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com micro leadframe and mlf are trademarks of amkor technology.
mic2213 micrel, inc. m9999-101705 2 october 2005 ordering information part number voltage* (vo1 / vo2) junction temperature range package full manufacturing pb-free mic2213-1.8/2.85bml mic2213-gnbml mic2213-gnyml 1.8v/2.85v C40 o c to +125 o c 10-pin 3x3 mlf? mic2213-2.5/3.3bml mic2213-jsbml mic2213-jsyml 2.5v/3.3v C40 o c to +125 o c 10-pin 3x3 mlf? mic2213-adj/adjbml mic2213-aabml mic2213-aayml adj/adj C40 o c to +125 o c 16-pin 4x4 mlf? * contact factory regarding availability for voltages not listed. voltage code adj. a 1.5 f 1.6 w 1.8 g 2.0 h 2.1 e 2.5 j 2.6 k 2.7 l 2.8 m 2.850 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
october 2005 3 m9999-101705 mic2213 micrel, inc. 1 2 3 4 12 16 15 14 13 8 7 6 5 1 1 10 9 en nc byp adj1 por d r v adj ngnd 16-pin 4mm 4mm mlf? (ml) pin description pin number pin number pin name pin function mlf-10 (3x3) mlf-16 (4x4) 1 15, 16 vin supply input (vin1 and vin2 are internally tied together.) 2 - en enable input for regulator 1: regulator 2 internally enabled when regulator 1 reaches 90% of nominal output. active high input. - 2 nc not internally connected. 3 3 cbyp reference bypass: connect external 0.01f to gnd to reduce output noise. may be left open. 4 5 sw active high signal drives open-drain n-channel mosfet. - 4 adj1 adjust input (regulator 1): connect feedback resistors to program the out - put voltage for the regulator. 5 6 set delay set input: connect external capacitor to gnd to set the internal delay for the por output. when left open, there is no delay. this pin cannot be grounded. 6 7,8 gnd ground: connect externally to exposed pad. - 9 ngnd ground for the open-drain driver. tied to the source of the nmosfet. tied to gnd internally. - 10 adj2 adjust input (regulator 2): connect feedback resistors to program the out - put voltage for the regulator. 7 11 drv open-drain output: capable of sinking 150ma. 8 12 por power-on reset output: open-drain output. active low indicates an output undervoltage condition on regulator 2. 9 13 vout2 output of regulator 2: 300ma output current 10 14 vout1 output of regulator 1: 150ma output current ep ep gnd ground: internally connected to the exposed pad. connect externally to ground pin. 1 vin en byp sw set 10 vout1 vout2 por d r v gnd 9 8 7 6 2 3 4 5 10-pin 3mm 3mm mlf? (ml) (top view) pin con?guration
mic2213 micrel, inc. m9999-101705 4 october 2005 electrical characteristics (note 4) v in = v out +1.0v for higher output of the regulator pair; c out = 1.0f, i out = 100a; t j = 25c, bold values indicate C40c t j +125c; unless noted. parameter conditions min typ max units output voltage accuracy variation from nominal v out C1.0 +1.0 % C2.0 +2.0 % output voltage temp. coef?cient 40 ppm/c line regulation; note 5 v in = v out +1v to 5.5v C0.3 0.02 0.3 %/v C0.6 0.6 load regulation i out = 100a to 150ma (regulator 1 and 2) 0.2 1.0 % i out = 100a to 300ma (regulator 2) 1.5 % dropout voltage; note 6 i out = 150ma (regulator 1 and 2) 120 190 mv 250 mv i out = 300ma (regulator 2) 240 340 mv 420 ground pin current i out1 = i out2 = 0a 48 65 a 80 a i out1 = 150ma & i out2 = 300ma 60 a ground pin current in shutdown v en 0.4v 1.0 a ripple rejection f = 1khz; c out = 1.0f ceramic; c byp = 10nf 60 db f = 20khz; c out = 1.0f ceramic; c byp = 10nf 40 db current limit v out = 0v (regulator 1) 150 280 460 ma v out = 0v (regulator 2) 300 450 700 ma t delay ; note 7 sequenced delay time 70 s output voltage noise c out =1f, c byp =0.01f, 10hz to 100khz 30 vrms enable input enable input voltage logic low (regulator shutdown) 0.6 v logic high (regulator enabled) 1.8 v enable input current v il < 0.6v (regulator shutdown) C1 0.01 +1 a v ih > 1.8v (regulator enabled) C1 0.01 +1 a por output v th low threshold, % of nominal v out2 (flag on) 90 % high threshold, % of nominal v out2 (flag off) 96 % v ol por output logic low voltage; i l = 250a 0.02 0.1 v i por flag leakage current, flag off C1 0.01 +1 a absolute maximum rating (note 1) supply input voltage (v in ) ...................................... 0v to 7v enable input voltage (v en ) .................................... 0v to 7v power dissipation (p d ) ................ internally limited, note 3 junction temperature ............................... C40c to +125c storage temperature (t s ) .......................... C65c to 150c open-drain output (drv) ........................................ 250ma lead temperature (soldering, 5 sec.) ........................ 260c operating ratings (note 2) supply input voltage (v in ) .............................. 2.25v to 5.5v enable input voltage (v en ) ................................... 0v to vin junction temperature (t j ) ........................ C40c to +125c package thermal resistance mlf?-10 ( ja ) 1" square 2 oz. copper ............... 60c/w
october 2005 5 m9999-101705 mic2213 micrel, inc. parameter conditions min typ max units drv output voltage low i drv = 150ma 0.2 0.5 v 0.6 leakage current i drv = 0ma, v drv = 5.5v, sw = 0v C1 0.01 +1 a sw input voltage logic low (drv shutdown) 0.6 v logic high (drv enabled) 1.8 v sw input current v il < 0.6v (drv shutdown) C1 0.01 +1 a v ih > 1.8v (drv enabled) C1 0.01 +1 a set input set pin current source v set = 0v 0.75 1.25 1.75 a set pin threshold voltage p or = high 1.25 v note 1. exceeding maximum rating may damage the device. note 2. the device is not guaranteed to work outside its operating rating. note 3. the maximum allowable power dissipation of any t a (ambient temperature) is (p d(max) = t j(max) C t a ) / ja . exceeding the maximum allow - able power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. note 4. speci?cation for packaged product only. note 5. minimum input for line regulation test is set to v out + 1v relative to the highest output voltage. note 6. dropout voltage is de?ned as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1v differential. for outputs below 2.25v, dropout voltage is the input-to-output voltage differential with the minimum input voltage 2.25v. minimum input operating voltage is 2.25v. note 7. time measured from output of regulator 1 reaching 90% of its ?nal value to output of regulator 2 reaching 90% of its ?nal value.
mic2213 micrel, inc. m9999-101705 6 october 2005 0 0.5 1 1.5 2 2.5 3 0 1 2 3 4 5 supply voltage (v) dropout characteristics output 1 150m a 100 a 0 0.5 1 1.5 2 2.5 3 0 1 2 3 4 5 supply voltage (v) dropout characteristics output 2 300m a 100 a 0 10 20 30 40 50 60 0 1 2 3 4 5 6 supply voltage (v) ground current vs. supply voltage output 1 and 2 with 100a load 0 10 20 30 40 50 60 0 2 0 4 0 6 0 8 0 100 120 140 output 1 load current (ma) ground current vs. output 1 current 0 10 20 30 40 50 60 0 5 0 100 150 200 250 300 output 2 load current (ma) ground current vs. output 2 current 10e-9 100e-9 1e-6 10e-6 frequency (hz) spectal noise density output 1 c ou t = 1 f c in = 1 f c b y p = 0. 01 f 100 a lo ad 10 100 1k 10k 100k 1m 10 100 1k 10k 100k 1m 10e-9 100e-9 1e-6 10e-6 frequency (hz) spectral noise density output 2 100 a lo ad c ou t = 1 f c in = 1 f c b y p = 0. 01 f 0 20 40 60 80 0.01 0.1 1 1 0 100 1000 frequency (khz) psrr output 2 c b y p = 10n f c b y p = 100 nf c b y p = 1n f v in = v ou t + 1 i ou t = 300m a c ou t = 1 f 0 20 40 60 80 0.01 0.1 1 1 0 100 1000 frequency (khz) psrr output 1 c b y p = 10n f c b y p = 100 nf c b y p = 1n f v in = v ou t + 1 i ou t = 150m a c ou t = 1 f 0 50 100 150 -40 -20 0 2 0 4 0 6 0 8 0 100 120 140 temperature (c) dropout voltage output 1 150m a lo ad 0 50 100 150 200 250 300 350 -40 -20 0 2 0 4 0 6 0 8 0 100 120 140 temperature (c) dropout voltage output 2 300m a lo ad 0 10 20 30 40 50 60 -40 -20 0 20 40 60 80 100 120 140 160 temperature (c) ground pin current load on both outputs 0 a 100 a 1m a typical characteristics
october 2005 7 m9999-101705 mic2213 micrel, inc. 2.580 2.585 2.590 2.595 2.600 2.605 2.610 0 2 5 5 0 7 5 100 125 150 output 1 load current (ma) output voltage vs. load current 2.820 2.825 2.830 2.835 2.840 2.845 2.850 2.855 2.860 2.865 2.870 0 5 0 100 150 200 250 300 output 2 load current (ma) output voltage vs. load current 0.00 0.20 0.40 0.60 0.80 1.00 1.20 2.25 2.75 3.25 3.75 4.25 4.75 5.25 supply voltage (v) switch threshold vs. supply voltage drive current = 1ma 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 2.25 2.75 3.25 3.75 4.25 4.75 5.25 supply voltage (v) enable voltage threshold vs. supply voltage 2.85 2.90 2.95 3.00 3.05 3.10 3.15 -40 -20 0 2 0 4 0 6 0 8 0 100 120 140 temperature (c) output voltage 1 vs. temperature 100 a lo ad 2.65 2.70 2.75 2.80 2.85 2.90 2.95 -40 -20 0 2 0 4 0 6 0 8 0 100 120 140 temperature (c) output voltage 2 vs. temperature 100 a lo ad typical characteristics (cont.) por setting cap (pf) por delay c in = 1 f c = 1 f i load = 100 a 1 1 0 100 1k 10k 100k 1m 1 10 100 1k 10k 100k 10m 1m out
mic2213 micrel, inc. m9999-101705 8 october 2005 functional characteristics
october 2005 9 m9999-101705 mic2213 micrel, inc. functional diagram out1 out2 por d r v ngnd gnd sw cbyp set en vin ldo1 ldo2 reference delay mic2213 fixed voltage block diagram out1 out2 por d r v ngnd gnd sw cbyp set en vin adj2 adj1 ldo1 ldo2 reference delay mic2213 adjustable voltage block diagram functional description the mic2213 is a high performance, low quiescent current power management ic consisting of two cap low dropout regulators, a power-on reset (por) circuit and an open-drain driver. the ?rst regulator is capable of sourcing 150ma at out - put voltages from 1.25v to 5v. the second regulator is capable of sourcing 300ma of current at output voltages from 1.25v to 5v. the second regulator has a por circuit that monitors its output voltage and indicates when the output voltage is within 5% of nominal. the por offers a delay time that is externally programmable with a single capacitor to ground. an open-drain driver completes the power management chipset, offering the capability of driving leds for keypad backlighting in applications such as cellphones. enable the enable input allows for logic control of both output volt - ages with one enable input. the enable input is active high, requiring 1.8v for guaranteed operation. the enable input is cmos logic and cannot by left ?oating. power-on reset (por) the power-on reset output is an open-drain n-channel de - vice, requiring a pull-up resistor to either the input voltage or output voltage for proper voltage levels. the por output has a delay time that is programmable with a capacitor from the set pin to ground. the delay time can be programmed to be as long as 1 second. the set pin is a current source output that charges a ca - pacitor that sets the delay time for the power-on reset output. the current source is a 1a current source that charges a capacitor up from 0v. when the capacitor reaches 1.25v, the output of the por is allowed to go high. 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 ?oating.
mic2213 micrel, inc. m9999-101705 10 october 2005 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 mic2213 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 requires a 1f ceramic output capaci - tor for stability. the output capacitor value can be increased to improve transient response, but performance 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 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 their operat - ing 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 capacitance over the equivalent operating temperature range. adjustable regulator design vout1 adj1 r1 r2 adj2 vout2 r2 r1 gnd mic2213 adjustable regulator design the mic2213 allows the programming of the output voltages 1 and 2 anywhere between 1.25v and 5.5v, the maximum operating rating of the part. two resistors are required for each output. appropriate resistor values are required to prevent the low quiescent current performance being compromised. resistor values recommended are between 100k and 500k. the resistor values are calculated by: r1 = r2 1.250 C 1 v out where v out is the desired output voltage. calculate sepa - rately for each output.
october 2005 11 m9999-101705 mic2213 micrel, inc. package information 10-lead mlf? (ml) 16-lead 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 this information furnished by micrel in this data sheet is believed to be accurate and reliable. however no responsibility is assumed by micrel for its use. micrel reserves the right to change circuitry and speci?cations at any time without noti?cation to the customer. micrel products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or systems that (a) are intended 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 signi? cant injury to the user. a purchasers use or sale of micrel products for use in life support appliances, 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. ? 2003 micrel, inc.

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