View MIC5319-27YMLTR_7055965.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

march 2008 1 m9999-032808 mic5319 micrel, inc. mic5319 500ma cap ultra-low dropout high psrr ldo regulator general description the mic5319 is a high-performance, 500ma ldo regula - tor, offering extremely high psrr and very low noise while consuming low ground current. ideal for battery-operated applications, the mic5319 features 1% accuracy, extremely low-dropout voltage (200mv @ 500ma), and low ground current at light load (typically 90a). equipped with a logic-compatible enable pin, the mic5319 can be put into a zero-off-mode current state, drawing no current when disabled. the mic5319 is a cap design operating with very small ceramic output capacitors for stability, thereby reducing required board space and component cost. the mic5319 is available in ?xed-output voltages and adjust - able output voltages in the super-compact 2mm x 2mm mlf ? leadless package and thin sot-23-5 package. additional voltage options are available. contact micrel marketing. all support documentation can be found on micrels web site at www.micrel.com. typical application features ? ultra-low dropout voltage 200mv @ 500ma ? input voltage range: 2.5 to 5.5v ? stable with ceramic output capacitor ? low output noise 40vrms ? low quiescent current of 90a total ? high psrr, up to 70db @1khz ? fast turn-on-time 40s typical ? high output accuracy: ? 1.0% initial accuracy ? 2.0% over temperature ? thermal shutdown protection ? current-limit protection ? logic-controlled enable ? tiny 2mm x 2mm mlf ? package, 500ma continuous ? thin sot-23-5 package, 500ma peak applications ? cellular phones ? pdas ? fiber optic modules ? portable electronics ? notebook pcs ? audio codec power supplies 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 registered trademarks of amkor technology, inc. 0 10 20 30 40 50 60 70 80 90 100 frequency (hz) psrr (bypass pin cap = 0.1f) 50ma 500ma 100 a 1k 10 10 0 10 k 100 k 1m vout = 2.8v vin = vout + 1v cout = 2.2f 0 20 40 60 80 100 120 140 160 180 200 output current (ma) vout = 2.8v cout = 2.2 f 0 100 200 300 400 500 dropout voltage vs. output current mic5319 vout vin byp en gnd v in 2.8v@500ma v out 2.2f 0.1f 1f
mic5319 micrel, inc. march 2008 2 m9999-032808 ordering information part number marking voltage (2) junction temp. range package standard pb-free standard pb-free (1) mic5319-1.3hyml 13h 1.375v C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319-1.8bml mic5319-1.8yml 918 918 1.8v C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319-1.85yml 91j 1.85v C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319-2.5bml mic5319-2.5yml 925 925 2.5v C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319-2.6yml 926 2.6v C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319-2.7yml 927 2.7v C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319-2.8bml mic5319-2.8yml 928 928 2.8v C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319-2.9yml 929 2.9v C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319-3.0yml 930 3.0v C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319-3.3bml mic5319-3.3yml 933 933 3.3v C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319-5.0bml mic5319-5.0yml 950 950 5.0v C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319bml mic5319yml 9aa 9aa adj C 40 o c to +125 o c 6-pin 2mm x 2mm mlf ? mic5319-1.3hyd5 n 1 3h 1.375v C 40 o c to +125 o c thin sot-23-5 mic5319-1.8yd5 n9 18 1.8v C 40 o c to +125 o c thin sot-23-5 mic5319-1.85yd5 n9 1j 1.85v C 40 o c to +125 o c thin sot-23-5 mic5319-2.5yd5 n9 25 2.5v C 40 o c to +125 o c thin sot-23-5 mic5319-2.6yd5 n9 26 2.6v C 40 o c to +125 o c thin sot-23-5 mic5319-2.7yd5 n9 27 2.7v C 40 o c to +125 o c thin sot-23-5 mic5319-2.8bd5 mic5319-2.8yd5 n928 n9 28 2.8v C 40 o c to +125 o c thin sot-23-5 mic5319-2.9yd5 n9 29 2.9v C 40 o c to +125 o c thin sot-23-5 mic5319-3.0yd5 n9 30 3.0v C 40 o c to +125 o c thin sot-23-5 mic5319-3.3bd5 mic5319-3.3yd5 n933 n9 33 3.3v C 40 o c to +125 o c thin sot-23-5 mic5319-5.0yd5 n9 50 5.0v C 40 o c to +125 o c thin sot-23-5 no tes: 1. under-bar/over-bar symbols may not be to scale. 2. for other output voltage options, contact micrel marketing.
march 2008 3 m9999-032808 mic5319 micrel, inc. pin con?guration 1 en gnd vin 6 byp nc vout 5 4 2 3 mic5319-x.xbml/yml 6-pin 2mm x 2mm mlf? (ml) (top view) vin vout byp en kwxx 1 3 4 5 2 gnd mic5319-x.xbd5/yd5 tsot-23-5 (d5) (top view) 1 en gnd vin 6 byp adj vout 5 4 2 3 mic5319bml/yml (adjustable) 6-pin 2mm x 2mm mlf? (ml) (top view) pin description pin number pin number pin number pin name pin function mlf-6 fixed mlf-6 adj. tsot-23-5 fixed 1 1 3 en enable input. active high. high = on, low = off. do not leave ?oating. 2 2 2 gnd ground. 3 3 1 vin supply input. 4 4 5 vout output voltage. C 5 C adj adjust input: connect to external resistor voltage divider network. 5 C nc no connection for ?xed voltage parts. 6 6 4 byp reference bypass: connect external 0.1f to gnd for reduced output noise. may be left open. hs pad hs pad C epad exposed heatsink pad connected to ground internally.
mic5319 micrel, inc. march 2008 4 m9999-032808 electrical characteristics (5) v in = v out +1.0v; c out = 2.2f, i out = 100a; t j = 25c, bold values indicate C40c to + 125c; unless noted. parameter condition min typ max units output voltage accuracy variation from nominal v out C1.0 +1.0 % variation from nominal v out , i out = 100 a to 500ma C2.0 +2.0 % feedback voltage 1.2375 1.25 1.2625 v (adj option) 1.225 1.25 1.275 v line regulation v in = v out +1v to 5.5v 0.04 0.3 %/v load regulation (6) i out = 100a to 500ma 0.1 0.5 % dropout voltage (7)(8) i out = 50ma 20 40 mv i out = 500ma 200 400 mv ground pin current (9) i out = 0 to 500ma 90 150 a ground pin current in shutdown v en 0.2v 0.5 a ripple rejection f = up to 1khz; c out = 2.2f ceramic; c byp = 0.1f 70 db f = 10khz; c out = 2.2f ceramic; c byp = 0.1f 60 db current limit v out = 0v 600 700 ma output voltage noise c out =2.2f, c byp = 0.1f, 10hz to 100khz 40 vrms turn-on time c out = 2.2f; c byp = 0.01f 40 100 s enable input enable input voltage logic low (regulator shutdown) 0.2 v logic high (regulator enabled) 1. 2 v enable input current v il 0.2v (regulator shutdown) 0.01 1 a v ih 1.0v (regulator enabled) 0.01 1 a notes: 1. exceeding maximum ratings may damage the device. 2. the device is not guaranteed to work 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 temperature, and the regulator may go into thermal shutdown. 4. devices are esd sensitive. handling precautions recommended. human body model. 5. speci?cation for packaged product only. 6. regulation is measured at constant junction temperature using low duty cycle pulse testing. 7. dropout voltage is de?ned as the input-to-output differential at which the output voltage drops 2% below its nominal v out . for outputs below 2.5v, dropout voltage spec does not apply, as part is limited by minimum v in spec of 2.5v. there may be some typical dropout degradation at v out <3v. 8. for adj option, v out = 3v for dropout speci?cation. 9. ground pin current is the regulator quiescent current. the total current drawn from the supply is the sum of the load current plus the ground pin cur - rent. absolute maximum ratings (1) supply input voltage (v in ) ...................................... 0v to 6v enable input voltage (v en ) .................................... 0v to 6v power dissipation (p d ) ......................... internally limited (3) junction temperature(t j ) ......................... C40c to +125c storage temperature (t s ) .......................... C65c to 150c lead temperature (soldering, 5 sec.) ........................ 260c esd (4) ............................................................................................... 3kv operating ratings (2) supply input voltage (v in ) ............................... 2.5v to 5.5v enable input voltage (v en ) ................................... 0v to v in junction temperature (t j ) ........................ C40c to +125c package thermal resistance mlf? ( ja ) ......................................................... 93c/w tsot-23 ( ja ) ................................................... 235c/w
march 2008 5 m9999-032808 mic5319 micrel, inc. typical characteristics 0 10 20 30 40 50 60 70 80 90 100 frequency (hz) psrr (bypass pin cap = 0.01f) 50ma 500ma 100 a 1k 10 10 0 10 k 100 k 1m vout = 2.8v vin = vout + 1v cout = 2.2f 0 10 20 30 40 50 60 70 80 90 100 frequency (hz) psrr (bypass pin cap = 0.1f) 50ma 500ma 100 a 1k 10 10 0 10 k 100 k 1m vout = 2.8v vin = vout + 1v cout = 2.2f 55 60 65 70 75 80 85 0. 1 1 1 0 10 0 1000 ( t n e r r u c d n u o r g ) a output current (ma) vout = 2.8v vin = vout + 1v cout = 2.2uf cbyp = 0.01f 0 10 20 30 40 50 60 70 80 90 -4 0 -2 0 0 2 0 4 0 6 0 8 0 10 0 120 temperature (c) vs. temperature iload = 50ma vout = 2.8v vin = vout + 1v cout = 2.2 f 0 10 20 30 40 50 60 70 80 90 -4 0 -2 0 0 2 0 4 0 6 0 8 0 10 0 120 temperature (c) iload = 150ma vout = 2.8v vin = vout + 1v cout = 2.2 f 0 10 20 30 40 50 60 70 80 90 -4 0 -2 0 0 2 0 4 0 6 0 8 0 10 0 120 temperature (c) iload = 300ma vout = 2.8v vin = vout + 1v cout = 2.2 f 0 10 20 30 40 50 60 70 80 90 100 -4 0 -2 0 0 2 0 4 0 6 0 8 0 10 0 120 temperature (c) iload = 500ma vout = 2.8v vin = vout + 1v cout = 2.2 f 0 10 20 30 40 50 60 70 80 90 100 3 3. 5 4 4. 5 5 5.5 input voltage (v) iload = 50ma vout = 2.8v cout = 2.2 f 0 10 20 30 40 50 60 70 80 90 100 3 3. 5 4 4. 5 5 5.5 input voltage (v) iload = 150ma vout = 2.8v cout = 2.2 f 0 10 20 30 40 50 60 70 80 90 3 3. 5 4 4. 5 5 5.5 input voltage (v) iload = 500ma vout = 2.8v cout = 2.2f 0 0.5 1 1.5 2 2.5 3 0 1 2 3 4 5 input voltage (v) dropout characteristics 50ma 150ma 500ma 0 5 10 15 20 25 30 -4 0 -2 0 0 2 0 4 0 6 0 8 0 10 0 120 temperature (c) vs. temperature iload = 50ma vout = 2.8v cout = 2.2f ground current vs. output current ground current vs. temperature ground current vs. temperature ground current vs. temperature ground current vs. input voltage ground current vs. input voltage ground current vs. input voltage ground current dropout voltage
mic5319 micrel, inc. march 2008 6 m9999-032808 0 10 20 30 40 50 60 70 80 -4 0 -2 0 0 2 0 4 0 6 0 8 0 10 0 120 temperature (c) vs. temperature iload = 150ma vout = 2.8v cout = 2.2f 0 50 100 150 200 250 -4 0 -2 0 0 2 0 4 0 6 0 8 0 10 0 120 temperature (c) iload = 500ma vout = 2.8v cout = 2.2f 0 20 40 60 80 100 120 140 160 180 200 output current (ma) vout = 2.8v cout = 2.2 f 0 100 200 300 400 500 2.6 2.65 2.7 2.75 2.8 2.85 2.9 2.95 3 -4 0 -2 0 0 2 0 4 0 6 0 8 0 10 0 120 temperature (c) output voltage vs. temperature iload = 100a vout = 2.8v vin = vout + 1v 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 -4 0 -2 0 0 2 0 4 0 6 0 8 0 10 0 120 temperature (c) enable threshold vs. temperature iload = 100 a vout = 2.8v vin = vout + 1v cout = 2.2 f 100 200 300 400 500 600 700 3 3. 5 4 4. 5 5 5. 5 6 input voltage (v) iload = 100a vout = 2.8v cout = 2.2f 0.001 0.01 0.1 1 10 frequency (hz) spectral density i l oad = 5 0 ? v ou t = 2 . 8 v v i n = 4 . 45 v c ou t = 2 . 2 f c b y p = 0 . 01 f 1 0 10 0 1 k 10k 100k 1 m 10m dropout voltage vs. temperature dropout voltage vs. temperature dropout voltage vs. input voltage short circuit current output noise
march 2008 7 m9999-032808 mic5319 micrel, inc. functional characteristics
mic5319 micrel, inc. march 2008 8 m9999-032808 functional diagram vin en byp vout gnd current limit quick- start v ref thermal shutdown error amp mic5319 mic5319 block diagram - fixed vin en byp vout gnd current limit quick- start v ref thermal shutdown error amp adj mic5319 mic5319 block diagram - adjustable
march 2008 9 m9999-032808 mic5319 micrel, inc. applications information enable/shutdown the mic5319 features an active-high enable pin that allows the regulator to be disabled. forcing the enable pin low dis - ables the regulator and sends it into a zero off-mode-current state. in this state, current consumed by the regulator goes nearly to zero. forcing the enable pin high enables the output voltage. the active-high enable pin uses cmos technology and the enable pin cannot be left ?oating, as this may cause an indeterminate state on the output. input capacitor the mic5319 is a high-performance, high bandwidth device. therefore, it requires a well-bypassed input supply for optimal performance. a 1f capacitor is required from the input- to- ground to provide stability. low-esr ceramic capacitors provide optimal performance at a minimum of space. addi - tional high frequency capacitors, such as small-valued npo dielectric-type capacitors, help ?lter out high-frequency noise and are good design practice in any rf-based circuit. output capacitor the mic5319 requires an output capacitor of 2.2f 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 2.2f ceramic output capacitor and does not improve signi?cantly with larger capacitance. 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 an x7r ceramic capacitor to ensure the same minimum capacitance over the equivalent operating temperature range. bypass capacitor a capacitor can be placed from the bypass pin-to-ground to reduce output voltage noise. the capacitor bypasses the internal reference. a 0.1f capacitor is recommended for applications that require low-noise outputs. the bypass capacitor can be increased, further reducing noise and im - proving psrr. turn-on time increases slightly with respect to bypass capacitance. a unique, quick-start circuit allows the mic5319 to drive a large capacitor on the bypass pin without signi?cantly slowing turn-on time. refer to the typi - cal characteristics section for performance with different bypass capacitors. no-load stability unlike many other voltage regulators, the mic5319 will re - main stable and in regulation with no load. this is especially important in cmos ram keep-alive applications. adjustable regulator application adjustable regulators use the ratio of two resistors to multiply the reference voltage to produce the desired output voltage. the mic5319 can be adjusted from 1.25v to 5.5v by using two external resistors (figure 1). the resistors set the output voltage based on the following equation: mic5319bml vout vin adj byp gnd v in v out r1 2.2f r2 1f en figure 1. adjustable voltage application thermal considerations the mic5319 is designed to provide 500ma of continuous current in a very small mlf package. maximum ambient operating temperature can be calculated based on the output current and the voltage drop across the part. given an input voltage of 3.3v, output voltage of 2.8v and output current = 500ma, the actual power dissipation of the regulator circuit can be determined using the equation: p d = (v in C v out ) i out + v in i gnd because this device is cmos and the ground current is typically <100a over the load range, the power dissipation contributed by the ground current is < 1% and can be ignored for this calculation. p d = (3.3v C 2.8v) 500ma p d = 0.25w 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: t j (max) = 125c, the maximum junction temperature of the die ja thermal resistance = 93c/w. v v 1 r1 r2 v 1 .25v out ref ref = + ? ? ? ? ? ? = p ( t ( max) C t d j a ja max) = ? ? ? ? ? ?
mic5319 micrel, inc. march 2008 10 m9999-032808 table 1 shows junction-to-ambient thermal resistance for the mic5319 in the 2mm x 2mm mlf package. package ja recommended jc minimum footprint 2 x 2 mlf ? 93c/w 2c/w sot-23-5 235c/w table 1. thermal resistance substituting 0.25w for p d (max) and solving for the ambient operating temperature will give the maximum operating condi - tions for the regulator circuit. the maximum power dissipation must not be exceeded for proper operation. 0.25w 125 c t 93 c / w t 101.75 c a a = ? = therefore, a 2.8v application at 500ma of output current can accept an ambient operating temperature of 101.75c in a 2mm x 2mm mlf package. for a full discussion of heat sinking and thermal effects on voltage regulators, refer to the regulator thermals section of micrels 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
march 2008 11 m9999-032808 mic5319 micrel, inc. package information 6-pin 2mm x 2mm mlf ? (ml) tsot-23-5 (d5) 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 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 at purchaser s own risk and purchaser agrees to fully indemnify micrel for any damages resulting from such use or sale. ? 2004 micrel, incorporated.

▲Up To Search▲

Price & Availability of MIC5319-27YMLTR

	To Download MIC5319-27YMLTR Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .