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? 2004 california micro devices corp. all rights reserved. 08/16/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 1 cm3002 micropower 1.0a low dropout cmos regulators features ? regulated output options: 1.5, 1.8, 2.5 and 3.3 volts 1.0a output current operates from 3.3v supply (5.0v for cm3002-33) very low dropout voltage on cm3002-33 products (500mv@1a) enable output control for power-up sequencing low quiescent operating current (< 600 a typical) current limit protection thermal overload protection reverse voltage protection available in thermally-enhanced soic-8 and msop-8 (cm3002-33ma/mf) packages lead-free versions available applications low voltage "core" processors peripheral adapter cards portable/battery-powered devices product description the cm3002 family of regulators are very low dropout regulators that deliver up to 1.0a of load current at a fixed voltage output. input and output voltage options for the cm3002 family devices are presented in ta bl e 1 . operating from a single input supply, these devices are ideally suited for powering low voltage ?core? proces- sors, especially where a 3.3v source is already avail- able. these regulators feature a dedicated control input (en, active high) for power-up sequencing flexibility. when this input is taken low, the regulator output is disabled. in this state, the supply cu rrent will drop to a low level to ensure all the internal control circuitry still remains active. this provides excellent start-up response when- ever the device comes out of shutdown. the cm3002 family of regulators is fully protected, offering both overload current limiting and high temper- ature thermal shutdown. housed in space saving ther- mally-enhanced soic-8 and msop-8 (cm3002-33ma/ mf) packages, these devices ensure maximum junc- tion-to-ambient power dissipation. the cm3002 is available with optional lead-free finish- ing. table 1: cm3002 regulator family product input vol tag e output voltage CM3002-15SA/sf 3.3v 1.5v cm3002-18sa/sf 3.3v 1.8v cm3002-25sa/sf 3.3v 2.5v cm3002-33sa/sf 5.0v or 3.3v 3.3v cm3002-33ma/mf 5.0v or 3.3v 3.3v simplified electrical schematic typical application circuit en reference voltage + v cc gnd en v out thermal sensor & current limit - v cc en v out gnd supply voltage 1 f 100nf 10 f + - v out + +
? 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 08/16/04 cm3002 ordering information note 1: parts are shipped in tape & reel form unless otherwise specified. pin descriptions pin(s) name description 1 en a logic input control to enable the regulator out put. when en is asserted (logic high), it allows out- put regulation to commence. when en is deasserted (logic low), the regulator pass transistor (n- channel mosfet) is forced into a high impedance mode. all other internal circuitry is unaffected by the st ate of the en input and will always remain powered whenever v cc is present. an internal pull-up current (2 a) from v cc must be overdriven in order to apply a logic low to the en control input. the en control input is intended to be used for power-up sequencing. 2v cc the input power supply for the regulator. if this input is within a few inches of the main supply filter, a capacitor may not be necessary. otherwise an input filter capacitor of approximately 1uf to 10uf will ensure adequate filtering. 3v out the regulator voltage output used to power the load. a nominal output capacitor of 10uf is suffi- cient to minimize any transient disturbances un der normal operating conditions. additional output capacitance can be used to further improve transient load response. 4 n.c. these pins have no connection to the internal device. to provide additional thermal performance, these pins can be connected direct ly to the pc board gnd plane. 5,6,7,8 gnd the negative re ference for all voltages. package / pinout diagrams 8-pin soic to p v i e w 1 2 3 4 8 7 6 5 en v cc v out n.c. gnd gnd gnd gnd note: these drawings are not to scale. 8-pin msop to p v i e w 1 2 3 4 8 7 6 5 en v cc v out n.c. gnd gnd gnd gnd (cm3002-33ma/mf only) (cm3002-xxsa/sf) part numbering information regulator pins package standard finish lead-free finish ordering part number 1 part marking ordering part number 1 part marking cm3002-15 8 power soic CM3002-15SA c m3002-15sa cm3002-15sf cm3002-15sf cm3002-18 8 power soic cm3002-18sa c m3002-18sa cm3002-18sf cm3002-18sf cm3002-25 8 power soic cm3002-25sa c m3002-25sa cm3002-25sf cm3002-25sf cm3002-33 8 power soic cm3002-33sa c m3002-33sa cm3002-33sf cm3002-33sf cm3002-33 8 power msop cm3002-33ma 233 cm3002-33mf 233r
? 2004 california micro devices corp. all rights reserved. 08/16/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 3 cm3002 specifications note 1: the soic and msop packages are ther mally enhanced through the use of a fused integral leadframe. the power rating is based on a printed circuit board heat spreadi ng capability equivalent to 2 square in ches of copper connected to the gnd pins. typical multi-layer boards using power plane construction will provide this heat spreadi ng ability without the need for additional dedicated copper area. please consult with factory fo r thermal evaluation assistance. absolute maximum ratings parameter rating units esd protection (hbm) + 2000 v pin voltages v cc en v out [gnd - 0.4] to [+6.0] [gnd - 0.4] to [+6.0] [gnd - 0.4] to [+6.0] v v v storage temperature range -40 to +150 c operating temperature range ambient junction 0 to +70 0 to +150 c c power dissipation (note 1) internally limited w standard operating conditions parameter rating units v cc (CM3002-15SA, cm3002-18sa, cm3002-25sa) 3.0 to 3.6 v v cc (cm3002-33sa, cm3002-33ma) 3.0 to 5.5 v ambient operating temperature range 0 to +70 c load current 0 to +1000 ma c ext 10 + 20% 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 08/16/04 cm3002 specifications (cont?d) note 1: operating characteristics are over standar d operating conditions unless otherwise specified. electrical operating characteristics (see note 1) symbol parameter conditions min typ max units v out regulator output voltage CM3002-15SA/sf cm3002-18sa/sf cm3002-25sa/sf cm3002-33sa/sf, -33ma/mf 0ma < i load < 1000ma 0ma < i load < 1000ma 0ma < i load < 1000ma 0ma < i load < 1000ma; v cc =5.0 1.42 1.72 2.40 3.10 1.50 1.80 2.50 3.30 1.58 1.88 2.60 3.50 v v v v i lim overload current limit 1500 ma v r load load regulation CM3002-15SA/sf, -18sa/sf, -25sa/sf cm3002-33sa/sf, -33ma/mf 10ma < i load < 1000ma; v cc =3.3v 10ma < i load < 1000ma; v cc =5.0v 20 20 mv mv v r line line regulation xx CM3002-15SA/sf i load = 5ma; 3.0v < v cc < to 5.5v 20 mv cm3002-18sa/sf i load = 5ma; 3.0v < v cc < to 5.5v 20 mv cm3002-25sa/sf i load = 5ma; 3.0v < v cc < to 5.5v 30 mv cm3002-33sa/sf, -33ma/mf i load = 5ma; 4.5v < v cc < to 5.5v 20 mv i q quiescent current CM3002-15SA/sf en tied to v cc ; i load = 0ma 500 900 a cm3002-18sa/sf en tied to v cc ; i load = 0ma 500 900 a cm3002-25sa/sf en tied to v cc ; i load = 0ma 500 900 a cm3002-33sa/sf, -33ma/mf en tied to v cc ; i load = 0ma 600 900 a i q quiescent current CM3002-15SA/sf en tied to gnd; i load = 0ma 150 300 a cm3002-18sa/sf en tied to gnd; i load = 0ma 150 300 a cm3002-25sa/sf en tied to gnd; i load = 0ma 150 300 a cm3002-33sa/sf, -33ma/mf en tied to gnd; i load = 0ma 200 300 a i gnd ground current CM3002-15SA/sf i load = 0ma 500 900 a cm3002-18sa/sf i load = 0ma 500 900 a cm3002-25sa/sf i load = 0ma 500 900 a cm3002-33sa/sf, -33ma/mf i load = 0ma 600 900 a i gnd ground current CM3002-15SA/sf i load = 1000ma 500 900 a cm3002-18sa/sf i load = 1000ma 500 900 a cm3002-25sa/sf i load = 1000ma 500 900 a cm3002-33sa/sf, -33ma/mf i load = 1000ma 600 900 a i rcc v cc pin reverse leakage v out = 3.3v; v cc = 0v 1 100 a v ih enable input logic high threshold 1.5 v v il enable input logic low threshold 0.3 v i en enable input current internal current source from v cc 210 a t disable shutdown temperature 160 c t hyst thermal hysteresis 25 c
? 2004 california micro devices corp. all rights reserved. 08/16/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 5 cm3002 performance information CM3002-15SA/sf typical dc characteristics (nominal conditions unless specified otherwise) supply current vs. voltage (en=v cc ) supply current vs. voltage (en=gnd) line regulation with 1a load load regulation ground current vs. output load 0 100 200 300 400 500 600 700 012 345 v cc [v] v supply current [ua] 0 100 200 300 400 500 600 700 012345 supply current [ua] 1.42 1.44 1.46 1.48 1.50 1.52 1.54 1.56 1.58 3.0 3.1 3.2 3.3 3.4 3.5 3.6 v out [v] 0 100 200 300 400 500 600 700 0 200 400 600 800 1000 1200 ground current [ua] 1.42 1.44 1.46 1.48 1.50 1.52 1.54 1.56 1.58 0 200 400 600 800 1000 1200 v out [v] v cc [v] load current [ma] current limiting protection 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 500 1000 1500 2000 v out [v] load current [ma] load current [ma] v cc [v]
? 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 08/16/04 cm3002 performance information (cont?d) cm3002-18sa/sf typical dc characteristics (nominal conditions unless specified otherwise) supply current vs. voltage (en=v cc ) supply current vs. voltage (en=gnd) 0 100 200 300 400 500 600 700 012345 v cc [v] supply current [ua] 0 100 200 300 400 500 600 700 0123456 v cc [v] supply current [ua] line regulation with 1a load 1.72 1.74 1.76 1.78 1.80 1.82 1.84 1.86 1.88 3.0 3.1 3.2 3.3 3.4 3.5 3.6 v cc [v] v out [v] ground current vs. output load 0 100 200 300 400 500 600 700 0 200 400 600 800 1000 load current [ma] ground current [ua] load regulation 1.72 1.74 1.76 1.78 1.80 1.82 1.84 1.86 1.88 0 200 400 600 800 1000 1200 1400 load current [ma] v out [v] current limiting protection 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 500 1000 1500 2000 load current [ ma ] v out [v]
? 2004 california micro devices corp. all rights reserved. 08/16/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 7 cm3002 performance information (cont?d) cm3002-25sa/sf typical dc characteristics (nominal conditions unless specified otherwise) 0 100 200 300 400 500 600 012345 v cc [v] supply current [ua] 0 100 200 300 400 500 600 012345 supply current [ua] line regulation (rated 1.0 amp load) 2.40 2.42 2.44 2.46 2.48 2.50 2.52 2.54 2.56 2.58 2.60 3.0 3.1 3.2 3.3 3.4 3.5 3.6 v out [v] ground current vs. output load 0 100 200 300 400 500 600 0 200 400 600 800 1000 load current [ma] ground current [ua] load regulation 2.48 2.49 2.50 2.51 2.52 0 250 500 750 1000 1250 load current [ma] v out [v] current limiting protection 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 500 1000 1500 2000 load current [ma] v out [v] supply current vs. voltage (en=v cc ) supply current vs. voltage (en=gnd) v cc [v] v cc [v]
? 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 08/16/04 cm3002 performance information (cont?d) cm3002-33sa/sf & cm3002-33ma/mf typical dc characteristics (nominal conditions unless specified otherwise, data representative of soic packaged -33sa/sf devices) 0 100 200 300 400 500 600 700 0123456 supply current [ua] 0 100 200 300 400 500 600 700 0123456 supply current [ua] line regulation with 5ma & 1a load 3.0 3.1 3.2 3.3 3. 4 3.0 3.5 4.0 4.5 5.0 5.5 6.0 v out [v] 5ma load 1a load ground current vs. output load 0 100 200 300 400 500 600 700 0 200 400 600 800 1000 1200 load current [ma] ground current [ua] dropout voltage vs. load (vout=3.2v) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0 200 400 600 800 1000 1200 load current [ma] dropout [v] current limiting protection 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 500 1000 1500 2000 2500 load current [ma] v out [v] v cc [v] v cc [v] supply current vs. voltage (en=v cc ) supply current vs. voltage (en=gnd) v cc [v]
? 2004 california micro devices corp. all rights reserved. 08/16/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 9 cm3002 performance information (cont?d) cm3002-33sa & cm3002-33ma/mf typical dc characteristics (continued) load regulation (v cc =5v) 3.26 3.28 3.30 3.32 3.34 0 200 400 600 800 1000 1200 load current [ma] v out [v] load regulation (v cc =3.3v) 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 0 200 400 600 800 v out [v] load current [ma]
? 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 08/16/04 cm3002 performance information (cont?d) CM3002-15SA/sf typical transient characteristics (nominal conditions unless specified otherwise) cold start power-up with rated load full power down with rated load power-up sequencing using enable input line transient step response (0.6vp-p) load transient response (50ma to 450ma) load transient response (100ma to 900ma)
? 2004 california micro devices corp. all rights reserved. 08/16/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 11 cm3002 performance information (cont?d) cm3002-18sa/sf typical transient characteristics (nominal conditions unless specified otherwise) cold start power-up with rated load full power down with rated load power-up sequencing using enable input line transient step response (1vp-p) load transient response (50ma to 500ma) load transient response (100ma to 900ma)
? 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 08/16/04 cm3002 performance information (cont?d) cm3002-25sa/sf typical transient characteristics (nominal conditions unless specified otherwise) cold start power-up with rated load full power down with rated load power-up sequencing using enable input line transient step response (1vp-p) load transient response (50ma to 450ma) load transient response (100ma to 900ma)
? 2004 california micro devices corp. all rights reserved. 08/16/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 13 cm3002 performance information (cont?d) cm3002-33sa/sf & cm3002-33ma/mf typical transient characteristics (nominal conditions unless speci- fied otherwise) cold start (1a load) full power down (1a load) line transient response (4.0v to 5.0v line step) power-up sequencing using enable input (1a load) load transient response (v cc =5v) load transient response (v cc =3.3v)
? 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 08/16/04 cm3002 performance information (cont?d) typical thermal characteristics the overall junction to ambient thermal resistance ( ja ) for device power dissipation (p d ) consists prima- rily of two paths in series. the first path is the junction to the case ( jc ) which is defined by the package style, and the second path is case to ambient ( ca ) thermal resistance which is dependent on board layout. the final operating junction temperature for any set of con- ditions can be estimated by the following thermal equa- tion: t junc = t amb + p d ? ( jc ) + p d ? ( ca ) = t amb + p d ? ( ja ) the cm3002 family uses thermally enhanced soic and msop packages where all the gnd pins (5 through 8) are integral to the leadframe. when this package is mounted on a double sided printed circuit board with two square inches of copper allocated for ?heat spreading?, the resulting ja is about 5 0 c/w for the soic package and 70 c/w for the msop pack- age . based on a maximum power dissipation of 0.8w (load x vin-vout = 1.0a x [3.3v-2.5v]) with an ambient of 70 c, the resulting junction temperature for a soic- packaged device will be: t junc = t amb + p d ? ( ja ) = 70 c + 0.8w ? (50 c/w) = 70 c + 40 c = 110 c thermal characteristics were measured using a double sided board with two square inches of copper area connected to the gnd pins for ?heat spreading?. measurements showing performance up to a junction temperature of 125 c are presented in figure 1 , figure 2 , figure 3 and figure 4 . they were performed under light load conditions (5ma); this allows the ambi- ent temperature to be representative of the internal junction temperature. note: the use of multi-layer board construction with separate ground and power planes will further enhance the overall thermal performance. in the event of no copper area being dedicated for heat spreading, a multi-layer board construction using only the minimum size pad layout will typica lly provide a cm3002 device packaged in a soic package with an overall ja of 50 c/w, which allows up to 0.8w to be dissipated safely. please consult camd technical support for assistance with thermal analysis of the cm3002 family of regula- tors with respect to a specific application. figure 1. CM3002-15SA/sf performance vs. temperature output voltage with temperature (5ma load) 1.46 1.48 1.50 1.52 1.54 0 25 50 75 100 v out [v] ground current with temperature (no load) 0 100 200 300 400 500 600 700 0 25 50 75 100 125 ground current [ua] junction temperature [c] junction temperature [c] 125
? 2004 california micro devices corp. all rights reserved. 08/16/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 15 cm3002 performance information (cont?d) figure 2. cm3002-18sa/sf performance vs. temperature figure 3. cm3002-25sa/sf performance vs. temperature figure 4. cm3002-33sa/sf & cm3002-33ma/mf performance vs. temperature output voltage with temperature (5ma load) 1.76 1.77 1.78 1.79 1.80 1.81 1.82 1.83 1.84 25 50 75 100 125 150 v out [v] ground current with temperature (no load) 0 100 200 300 400 500 600 700 25 50 75 100 125 150 ground current [ua] junction temperature [c] junction temperature [c] output voltage with temperature (5ma load) 2.42 2.44 2.46 2.48 2.50 2.52 2.54 2.56 2.58 25 50 75 100 125 150 junction temperature [c] v out [v] ground current with temperature (no load ) 0 100 200 300 400 500 25 50 75 100 125 15 0 ground current [ua] junction temperature [c] output voltage with temperature (5ma load) 3.20 3.22 3.24 3.26 3.28 3.30 3.32 3.34 3.36 3.38 3.40 0 25 50 75 100 125 v out [v] ground current with temperature (no load) 0 100 200 300 400 500 600 700 0255075100125 ground current [ua] junction temperature [c] junction temperature [c]
? 2004 california micro devices corp. all rights reserved. 16 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 08/16/04 cm3002 mechanical details cm3002 devices are packaged in 8-pin narrow soic (cm3002-xxsa/sf) and 8-pin msop (cm3002-33ma/ mf only) packages. soic-8 mechanical specifications: dimensions for cm3002-xxsa/sf devices packaged in 8-pin narrow soic packages are presented below. for complete information on the soic-8 package, see the california micro devices soic package informa- tion document. * this is an approximate number which may vary. package dimensions for soic-8 package dimensions package soic pins 8 dimensions millimeters inches min max min max a 1.35 1.75 0.053 0.069 a 1 0.10 0.25 0.004 0.010 b 0.33 0.51 0.013 0.020 c 0.19 0.25 0.007 0.010 d 4.80 5.00 0.189 0.197 e 3.80 4.19 0.150 0.165 e 1.27 bsc 0.050 bsc h 5.80 6.20 0.228 0.244 l 0.40 1.27 0.016 0.050 # per tube 100 pcs* # per tape and reel 2500 pcs controlling dimension: inches mechanical package diagrams e d h top view l end view c e b a a 1 seating plane side view 1234 8765 pin 1 marking
? 2004 california micro devices corp. all rights reserved. 08/16/04 430 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.calmicro.com 17 cm3002 mechanical details (cont?d) msop-8 mechanical specifications: cm3002-33ma/mf devices are packaged in 8-pin msop packages. dimensions are presented below. for complete information on the msop-8 package, see the california micro devices msop package informa- tion document. * this is an approximate number 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 pcs* # per tape and reel 4000 pcs 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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