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| ? 2004 california micro devices corp. all rights reserved. 09/14/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 1 cm3015 preliminary micropower, 300ma low dr opout cmos regulator features ? 300ma output cu rrent capability ?300ma peak in sot-23 package ?300ma continuous in msop package ? 300mv maximum dropout voltage at full load ? excellent line and load regulation ? stable with any output capacitor ? ultra low noise with optional bypass capacitor ? fast power-up with bypass capacitor ? "zero" current in shutdown mode ? thermal overload protection ? foldback current limiting protection ? reverse current protection applications ? notebook and palmtop computers ? cell phones and battery powered devices ? consumer and personal electronics ?pc card v cc and v pp regulation and switching cm3015 regulator family * for other output voltages, please consult factory. product description the cm3015 is a cmos linear voltage regulator with low quiescent curr ent, very low dropout voltage and better than 1% fixed output voltage accuracy. the cm3015 ground current is typically 150a at light loads and only 165a at 300ma. load regulation of 0.25% is maintained for peak cur- rents up to 300ma. this is useful for supplying in-rush currents during power-up and transient conditions. the continuous output current is determined by power dis- sipation, package type and board layout. a dedicated control input (en, active high) has been included for power-u p sequencing flexibility. when this input is taken low, the regulator is disabled and the supply current will drop to near zero. the cm3015 also features reverse current protection. this protects the device by blocking the pass transis- tor?s parasitic diode when t he output voltage is forced higher than the input. th e device also incorporates overload current limiting and high temperature thermal shutdown protection. for low noise performance and increased power sup- ply ripple rejection, a bypass capacitor can be con- nected to the byp pin. conn ecting this capacitor will not significantly delay the speed of power-up. to reduce board cost and la yout size the cm3015 was designed to be stable with or without any output capac- itor. this includes tiny, low esr ceramic capacitors. the cm3015 is available in a low profile, 8-lead msop package and 5 and 6-lead sot23 packages making it ideal for space critical applications. product output voltage* cm3015-00 adjustable cm3015-12 1.2v cm3015-15 1.5v cm3015-18 1.8v cm3015-25 2.5v cm3015-28 2.8v cm3015-30 3.0v cm3015-33 3.3v block diagram en + in gnd out - byp v ref amp en current limit reverse current protection fast power-up enable control thermal overload active pulldown r 1 r 2 vsense* * adjustable output version only
? 2004 california micro devices corp. all rights reserved. 2 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 09/14/04 cm3015 preliminary note 1: tantalum, electrolytic or low cost ceramic capacitors may be used. pin descriptions sot23-5 pin(s) sot23-6 pin(s) msop-8 pin(s) name description 112v in v in is the input power source for the regu lator. if this input is within a few inches of the main supply filter, a capacitor may not be necessary. other- wise, an input filter capacitor of about 1-10 f will ensure adequate filter- ing. 2 2 5-8 gnd the negative reference for all voltages. 3 3 1 en enable input. when this input is taken low (< 0.4v), the regulator is dis- abled. in this state, the supply current will drop to near zero. 4 4 4 byp reference bypass pin. connect to an external capacitor for noise reduc- tion. a 10nf-100nf size ceramic capacitor is recommended. ? 5 4 vsense this pin sets v out with an external divider: v out = vsense(1+ r 1 /r 2 ). r1 is the upper resistor, like the internal divider shown on the block dia- gram on page 1. 563v out v out is the output voltage used to pow er the load. an output capacitor may not be required for stability, but its use can improve transient response, noise performance and power supply ripple rejection for fre- quencies over ~100khz (see note 1). v in gnd en v out sense byp 1 2 6 5 3 4 cc00 top view package / pinout diagram (note 1) notes: v in gnd en v out byp 1 2 5 3 4 ccnn 2 top view 1 2 3 4 8 7 6 5 en vin vout byp gnd gnd gnd gnd top view 5-pin sot23 cm3015-12st,-15st , -18st,-25st,-30st,-33st 6-pin sot23 cm3015-00st 8-pin msop cm3015-12ma,-15ma , -18ma,-25ma,-30ma,-33ma 8-pin msop cm3015-00ma 1 2 3 4 8 7 6 5 en vin vout vsense gnd gnd gnd gnd top view cm30 15nn 2 cm30 1500 2) see ordering information section for part marking details. 1) these drawings are not to scale. ? 2004 california micro devices corp. all rights reserved. 09/14/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 3 cm3015 preliminary ordering information note 1: parts are shipped in tape & reel form unless otherwise specified. specifications note 1: tantalum, electrolytic or low cost ceramic capacitors may be used. note 2: v out + 1v < v in & 2.5v < v in < 6v, i out = 1ma, c in = 2.2f, t j = 25 c, c out = 2.2f, v sd = 1.5v, unless specified other- wise. bold values indicate -40 c < t j < 125 c part numbering information pins package ordering part number 1 part marking 6 sot23-6 cm3015-00st cc00 5 sot23-5 cm3015-12st cc12 5 sot23-5 cm3015-15st cc15 5 sot23-5 cm3015-18st cc18 5 sot23-5 cm3015-25st cc25 5 sot23-5 cm3015-28st cc28 5 sot23-5 cm3015-30st cc30 5 sot23-5 cm3015-33st cc33 8 msop-8 cm3015-00ma cm301500 8 msop-8 cm3015-12ma cm301512 8 msop-8 cm3015-15ma cm301515 8 msop-8 cm3015-18ma cm301518 8 msop-8 cm3015-25ma cm301525 8 msop-8 CM3015-28MA cm301528 8 msop-8 cm3015-30ma cm301530 8 msop-8 cm3015-33ma cm301533 absolute maximum ratings parameter rating units esd protection (hbm) + 2000 v pin voltages v in en v out [gnd - 0.6] to [+6.0] [gnd - 0.6] to [v cc + 0.6] [gnd - 0.6] to [v cc + 0.6] v v v storage temperature range -40 to +150 c operating temperature range, junction 0 to +150 c power dissipation (notes 1,2) internally limited w standard operat ing conditions parameter rating units v in 2.2 to 6.0 v ambient operating temperature range -40 to +85 c load current 0 to 300 ma c ext (notes 1 and 2) 0 to 50 f ? 2004 california micro devices corp. all rights reserved. 4 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 09/14/04 cm3015 preliminary specifications (cont?d) note 1: v out + 1v < v in & 2.5v < v in < 6v, i out = 1ma, c in = 2.2f, t j = 25 c, c out = 2.2f, v sd = 1.5v, unless specified other- wise. bold values indicate -40 c < t j < 125 c note 2: regulation voltages and dropout resistance measured at cons tant junction temperature usin g low duty cycle pulse testing. note 3: line regulation is displayed as the average regulation across the full operating range measured in %/v. electrical operating characteristics (see note 1) symbol parameter conditions min typ max unit s v out regulator output voltage t a = 25c 0c ? 2004 california micro devices corp. all rights reserved. 6 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 09/14/04 cm3015 preliminary performance information (cont?d) typical dc characteristics (cont?d - nominal conditions unless specified otherwise) nominal conditions: c in = 1f, c out = 2.2f, no c byp , v in = 4.0v, load = 5ma (all plots measured with 3.0v v out ) figure 7. enable voltage threshold figure 8. supply current vs. voltage (en=v in, i load = 5ma) figure 9. output supp ly current vs. voltage figure 10. input supply current vs. voltage figure 11. input supply current vs. voltage figure 12. output supply current vs. voltage 500 600 700 800 900 1000 234567 supply voltage [v] threshold [mv] 0 50 100 150 200 250 300 350 0123456 input voltage (v) quiescent current [ a] 0 500 1000 1500 2000 2500 0123456 output supply voltage [v] output supply current [na] v in = 0v, en = 0v 0 500 1000 1500 2000 2500 0123456 input supply voltage [v] input supply current [na] v out = 0v, en = 0v 0 500 1000 1500 2000 2500 0123456 input supply voltage [v] input supply current [na] v out =3v,en=0v 0 1 10 100 1000 10000 0123456 output supply voltage [v] output supply current [ a] v in =3v, en = 0v clamptognd protect ? 2004 california micro devices corp. all rights reserved. 09/14/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 7 cm3015 preliminary performance information (cont?d) transient characteristics (nominal conditions unless specified otherwise) nominal conditions: c in = 1f, c out = 2.2f, no c byp , v in = 4.0v, load = 5ma (all plots measured with 3.0v v out ) figure 13. 10% to 90% load step (t r =1 s, c out =10 f) figure 14. 10% to 90% load step (t r =1 s, c out =2.2 f) figure 15. 10% to 90% load step (t r =1 s, c out =1.0 f) figure 16. 3.5v - 4.5v line step (t r =1 s, no c out ) figure 17. 3.5v - 4.5v line step (t r =1 s, no c out , c byp =100nf) figure 18. 3.5v - 4.5v line step (t r =1 s, c out =2.2 f, c byp =100nf) ? 2004 california micro devices corp. all rights reserved. 8 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 09/14/04 cm3015 preliminary performance information (cont?d) transient characteristics (nominal conditions unless specified otherwise) nominal conditions: c in = 1f, c out = 2.2f, no c byp , v in = 4.0v, load = 5ma (all plots measured with 3.0v v out ) figure 19. enable response (no c byp , no load) figure 20. enable response (c byp =100nf, no load) figure 21. disable response (c byp =100nf, no load) figure 22. power-up (en=v in , i load =5ma, no c out , no c byp ) figure 23. power-up (en=v in , i load =5ma, c out =2.2 f, c byp =100nf) figure 24. power-down (i load =5ma) ? 2004 california micro devices corp. all rights reserved. 09/14/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 9 cm3015 preliminary performance information (cont?d) power supply ripple rejection and noise characterist ics (nominal conditions unless specified otherwise) nominal conditions: c in = 1f, v in = 4.0v, psrr measured with 50mv peak-to-peak sine wave on v in . figure 25. power supply ripple rejection (c out =10 f, c byp =100nf) figure 26. power supply ripple rejection (c out =2.2 f, c byp =100nf) figure 27. power supply ripple rejection (no c out , c byp =100nf) figure 28. output noise spectral density (i load =100 a, c out =10 f, c byp =100nf) power supply ripple rejection 0 10 20 30 40 50 60 70 80 10 100 1000 10000 100000 frequency (hz) psrr (db) 100ua load 5ma load 100ma load 300ma load power supply ripple rejection 0 10 20 30 40 50 60 70 80 10 100 1000 10000 100000 frequency (hz) psrr (db) 100ua load 5ma load 100ma load 300ma load power supply ripple rejection 0 10 20 30 40 50 60 70 80 10 100 1000 10000 100000 frequency (hz) psrr (db) 100ua load 5ma load 100ma load 300ma load ouput noise spectral density (100ua load) 1.e-08 1.e-07 1.e-06 1.e+01 1.e+02 1.e+03 1.e+04 1.e+05 frequency [hz] en[ v/roothz] c out =10 f, c byp = 100nf ? 2004 california micro devices corp. all rights reserved. 10 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 09/14/04 cm3015 preliminary performance information (cont?d) typical thermal characteristics (nominal conditions unless specified otherwise) nominal conditions: c in = 1f, c out = 2.2f, no c byp , v in = 4.0v, load = 5ma (all plots measured with 3.0v v out ) figure 29. v out vs. temperature (t a = 0 c to 125 c) figure 30. v out vs. temperature (t a = -40 c to 140 c) figure 31. i gnd vs. temperature (t a = -40 c to 140 c) -50 -40 -30 -20 -10 0 10 20 30 40 50 0 25 50 75 100 125 temperature [ o c] output change [mv] -50 -40 -30 -20 -10 0 10 20 30 40 50 -40 -20 0 20 40 60 80 100 120 140 temperature [ o c] output change [mv] 0 50 100 150 200 250 300 -40 -20 0 20 40 60 80 100 120 140 temperature [ o c] ground current [ a] ? 2004 california micro devices corp. all rights reserved. 09/14/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 11 cm3015 preliminary application information figure 32. adjustable regulator application example output compensation low-dropout regulator topologies use a current-carry- ing transistor ("pass device" ) that adds additional gain and phase shift to the design. it is necessary to com- pensate for these attributes to prevent the design from becoming unstable. the simple st way to do this is to add an output rc filter to roll off the gain. since all reg- ulators use an output capacitor anyway, the only com- ponent needed is a suitable resistance. fortunately, for the usual range and types of output capacitors, this resistance can be supplied by the esr of the caps. for many years, capacitors have been the largest com- ponents in regulator circuits, but newer types are shrinking in size rapidly. unfortunately, their esrs have shrunk as well, taking them out of the range where they can perform the r function described in existing ldos. the cm3015 is a new breed of ldo regulator that can work with these tiny low-esr capac- itors and thus permit designs that take a minimum of space. an attribute of the ldo topol ogy is that the pass device gain generally increases with increasing output current. this may affect output stab ility: a design that didn't need a capacitor now does, or a design that used a small value now needs a larger one. the cmd advan- tage is that this component can be selected from any capacitor family without regard to its esr. if the circuit calls for a tiny, low-esr capacitor, it will work just fine. v in gnd en v out sense byp 1 2 6 5 3 4 v in =v out + r drop (i out ) v out =v sense (1+r1/r2) v out = 4.992v 31.6k 10.0k 1.20v for the input voltage, vin minimum will depend on the output current. for example, if iout is 100ma, vin must be at least 4.992v = 1ohm x 100ma = 4.992 + 0.1 = 5.092v. r 1 r 2 ? 2004 california micro devices corp. all rights reserved. 12 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 09/14/04 cm3015 preliminary mechanical details cm3015 devices are available in a 5-lead sot23 package, a 6-lead sot23 package and an 8-lead msop package. dimensions are presented below and on the following pages. sot23-5 mechanical specifications the dimensions for the 3-lead sot23 package are presented below. package dimensions for sot23-5. package dimensions package sot23-5 jedec no. mo-178 (var. aa) pins/leads 5 dimensions millimeters inches min max min max a -- 1.45 -- 0.0571 a1 0.00 0.15 0.0000 0.0059 b 0.30 0.50 0.0118 0.0197 c 0.08 0.22 0.0031 0.0087 d 2.75 3.05 0.1083 0.1201 e 2.60 3.00 0.1024 0.1181 e1 1.45 1.75 0.0571 0.0689 e 0.95 bsc 0.0374 bsc e1 1.90 bsc 0.0748 bsc l 0.30 0.60 0.0118 0.0236 l1 0.60 ref 0.0236 ref # per tape and reel 3000 pieces controlling dimension: millimeters top view e1 e e1 e b 54 12 3 mechanical package diagrams a side view d a1 l1 end view c l ? 2004 california micro devices corp. all rights reserved. 09/14/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 13 cm3015 preliminary mechanical details (cont?d) sot23-6 mechanical specifications the dimensions for the 6-lead sot23 package are presented below. package dimensions for sot23-6. package dimensions package sot23-6 jedec no. mo-178 (var. ab) pins/leads 6 dimensions millimeters inches min max min max a -- 1.45 -- 0.0571 a1 0.00 0.15 0.0000 0.0059 b 0.30 0.50 0.0118 0.0197 c 0.08 0.22 0.0031 0.0087 d 2.75 3.05 0.1083 0.1201 e 2.60 3.00 0.1024 0.1181 e1 1.45 1.75 0.0571 0.0689 e 0.95 bsc 0.0374 bsc e1 1.90 bsc 0.0748 bsc l 0.30 0.60 0.0118 0.0236 l1 0.60 ref 0.0236ref # per tape and reel 3000 pieces controlling dimension: millimeters top view 12 3 65 4 e1 e e1 e b pin 1 marking mechanical package diagrams a side view d a1 l1 end view c l ? 2004 california micro devices corp. all rights reserved. 14 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 09/14/04 cm3015 preliminary mechanical details (cont?d) msop-8 mechanical specifications: the dimensions for the 6-lead sot23 package are presented below. * this is an approximate amount which may vary. package dimensions for msop-8 package dimensions package msop pins 8 dimensions millimeters inches min max min max a 0.87 1.17 0.034 0.046 a1 0.05 0.25 0.002 0.010 b 0.30 (typ) 0.012 (typ) c 0.18 0.007 d 2.90 3.10 0.114 0.122 e 2.90 3.10 0.114 0.122 e 0.65 bsc 0.025 bsc h 4.78 4.98 0.188 0.196 l 0.52 0.54 0.017 0.025 # per tube 80 pieces* # per tape and reel 4000 pieces controlling dimension: inches mechanical package diagrams e d h 1234 8765 l end view c e b a a1 seating plane side view top view pin 1 marking |
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