rev. 0 information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of analog devices. a adp3306 one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 617/329-4700 world wide web site: http://www.analog.com fax: 617/326-8703 ? analog devices, inc., 1997 preliminary technical data high accuracy anycap?* 300 ma low dropout linear regulator functional block diagram q2 thermal protection gm q1 cc bandgap ref driver r1 r2 adp3306 out in err sd gnd * anycap is a trademark of analog devices inc. features high accuracy over line and load regulations at 25 8 c: 6 1% ultralow dropout voltage: 300 mv typical @ 300 ma requires only c o = 1 m f for stability anycap? = stable with all types of capacitors (including mlcc) current and thermal limiting low noise dropout detector low shutdown current: 1 m a several fixed voltage options 3.2 v to 12 v supply range C20 8 c to +85 8 c ambient temperature range thermally enhanced so-8 and tssop-14 packages excellent line and load regulations applications cellular telephones notebook, palmtop computers battery powered systems portable instruments post regulator for switching supplies bar code scanners general description the adp3306 is a member of the adp330x family of precision low dropout anycap? voltage regulators. the adp3306 stands out from the conventional ldos with a novel architec- ture, an enhanced process and a new package. its patented design requires only a 0.1 m f output capacitor for stability. this de vice is stable with any capacitor, regardless of its esr (equivalent series resistance) value, including ceramic types (mlcc) for space restricted applications. the adp3306 achieves exceptional acc uracy of 1.0% at room temperature and 1.5% overall accu racy over temperature, line and load regula- tions. the dropout voltage of the adp3306 is only 300 mv (typi cal) at 300 ma. in addition to the new architecture and process, adis new proprietary thermally enhanced package (thermal coastline) can handle 1 w of power dissipation without external heat sink or large copper surface on the pc board. this keeps pc board real estate to a minimum and makes the adp3306 very attrac- tive for use in portable equipment. adp3306-5.0 5 4 6 3 nr out in 1 2 7 8 err 330k v e out c2 1 m f v out = +5v on off sd gnd c1 0.47 m f v in r 1 figure 1. typical application circuit the adp3306 operates with a wide input voltage range from 3.2 v to 12 v and delivers a load current in excess of 300 ma. it features an error flag that signals when the device is about to lose regulation or when the short circuit or thermal overload protec- tion is activated. other features include shutdown and o ptional noise reduction capabilities. the adp330x anycap? ldo fam- ily offers a wide range of output voltages and output current levels from 50 ma to 300 ma: adp3300 (50 ma, sot-23) adp3307 (100 ma, sot-23) adp3301 (100 ma) adp3302 (100 ma, dual output) adp3304 (100 ma, dual output with separate grounds) adp3303 (200 ma)
C2C rev. 0 preliminary technical data (@ t a = C20 8 c to +85 8 c, v in = 7 v, c in = 0.47 m f, c out = 0.47 m f, unless otherwise noted) 1 adp3306-xxCspecifications parameter symbol conditions min typ max units output voltage v out v in = nom v out +0.5 v to 12 v accuracy i l = 0.1 ma to 300 ma t a = +25 cC1+1% v in = nom v out +0.5 v to 12 v i l = 0.1 ma to 300 ma C1.5 +1.5 % line regulation d v o v in = nom v out +0.5 v to 12 v d v in t a = +25 c 0.03 mv/v load regulation d v o i l = 0.1 ma to 300 ma d i l t a = +25 c 0.04 mv/ma ground current i gnd i l = 300 ma 3 5 ma i l = 0.1 ma 0.5 1 ma ground current i gnd v in = 2.5 v in dropout i l = 0.1 ma 2.0 3 ma dropout voltage v drop v out = 98% of v o nominal i l = 300 ma 0.3 0.6 v i l = 10 ma 0.05 0.1 v i l = 1 ma 0.02 0.05 v shutdown threshold v thsd on 2.0 0.9 v off 0.9 0.3 v shutdown pin i sdin 0 < v sd < 5 v 1 m a input current 5 v sd 12 v @ v in = 12 v 22 m a ground current in i q v sd = 0, v in = 12 v shutdown mode t a = +25 c1 m a v sd = 0, v in = 12 v t a = +85 c5 m a output current in i osd t a = +25 c @ v in = 12 v 2 m a shutdown mode t a = +85 c @ v in = 12 v 4 m a error pin output leakage i el v eo = 5 v 13 m a error pin output low voltage v eol i sink = 400 m a 0.15 0.3 v peak load current i ldpk v in = nom v out + 1 v 350 ma output noise v noise f = 10 hzC100 khz @ 5 v output c nr = 0 100 m v rms c nr = 10 nf, c l = 10 m f30 m v rms notes 1 ambient temperature of +85 c corresponds to a typical junction temperature of +125 c under typical full load test conditions. specifications subject to change without notice.
adp3306 C3C rev. 0 preliminary technical data absolute maximum ratings* input supply voltage . . . . . . . . . . . . . . . . . . . C0.3 v to +16 v shutdown input voltage . . . . . . . . . . . . . . . . C0.3 v to +16 v error flag output voltage . . . . . . . . . . . . . . . C0.3 v to +16 v noise bypass pin voltage . . . . . . . . . . . . . . . . C0.3 v to +5 v power dissipation . . . . . . . . . . . . . . . . . . . . internally limited operating ambient temperature range . . . C55 c to +125 c operation junction temperature range . . . . C55 c to +125 c storage temperature range . . . . . . . . . . . . C65 c to +150 c lead temperature range (soldering 10 sec) . . . . . . . . +300 c vapor phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . +215 c infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . +220 c *this is a stress rating only; operation beyond these limits can cause the device to be permanently damaged. ordering guide model voltage output package options* adp3306ar-2.7 2.7 v so-8 adp3306ar-3 3.0 v so-8 adp3306ar-3.2 3.2 v so-8 adp3306ar-3.3 3.3 v so-8 adp3306ar-5 5.0 v so-8 adp3306aru-3.0 3.0 v tssop-14 adp3306aru-3.3 3.3 v tssop-14 contact the factory for the availability of other output voltage options. *so = small outline; tssop = thin shrink small outline. other members of anycap? family 1 output package model current options 2 comments adp3300 50 ma sot-23 high accuracy adp3301 100 ma so-8 high accuracy adp3302 100 ma so-8 dual output adp3304 100 ma so-8 dual output with separate grounds adp3307 100 ma sot-23 high accuracy adp3303 200 ma so-8 high accuracy notes 1 see individual data sheets for detailed ordering information. 2 so = small outline, sot = surface mount. pin function descriptions tssop soic mnemonic function 4, 5 1, 2 out output of the regulator. fixed 2.7, 3.0, 3.2, 3.3 or 5 volts output voltage. bypass to ground with a 0.1 m f or larger capaci- tor. output pins must be connected together for proper operation. 6 3 nr noise reduction pin. used for reduction of the output noise. (see text for details). no con- nection if not used. 7 4 gnd ground pin. 85 sd active low shutdown pin. con- nect to ground to disable the regulator output. when shut- down is not used, this pin should be connected to the input pin. 96 err open collector output, which goes low to indicate that the output is about to go out of regulation. 10, 11 7, 8 in regulator input. input pins must be connected together for proper operation. 1, 2, 3, nc no connect. 12, 13, 14 pin configurations 14-lead tssop 8-lead soic adp3306 1 2 3 4 8 7 6 5 top view (not to scale) out out nr gnd in in err sd adp3306 top view (not to scale) nc nc nc out out nr gnd nc nc nc in in err sd warning! esd sensitive device caution esd (electrostatic discharge) sensitive device. electrostatic charges as high as 4000 v readily accumulate on the human body and test equipment and can discharge without detection. although the adp3306 features proprietary esd protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. therefore, proper esd precautions are recommended to avoid performance degradation or loss of functionality.
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