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microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 1 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products description the lx1882 is a two-stage boost regulator featuring a charge pump doubler with an integrated low dropout linear regulator. the first stage features an internal doubler charge pump converting an input supply of 1.8v to 4.4v, while the second stage is an ldo regulating the boosted voltage converting it to a regulated output. the lx1882 is capable of supplying up to 50ma of output current with an operating current of less than 150 a. quiescent current is reduced to < 5 a in shutdown mode. the lx1882?s internal regulator is stable with either tantalum or ceramic low-value capacitors, typically 2.2 f on the output, allowing designers flexibility in external component selection. reliability and safe ty features include thermal shutdown protection and integrated short-circuit protection. important: for the most current data, consult microsemi ?s website: http://www.microsemi.com key features ? wide input voltage: 1.8v to 4.4v ? 3.3v and adjustable (2.5v to 5.5v) output voltage options ? inductor-less design using small ceramic capacitors ? low shutdown current of 1 a ? internal thermal shutdown and current limiting ? 550khz switching operation applications/benefits ? cellular telephone vco supplies ? medical instrumentation ? data acquisition ? wireless pcmcia applications ? emi sensitive boost applications product highlight 7 8 4 1 led n+1 2 3 6 v in 1.8v to 4.4v v out off on v out shdn fb gnd c+ v in c- cpo lx1882-00 5 c1 c2 c3 c4 lx1882: adjustable output; led driver 7 8 2 1 3 6 v in 2v to 4.4v v out = 3.3v off on v out shdn filt gnd c+ v in c- cpo lx1882-33 4 5 c2 c3 c1 c filt lx1882: fixed 3.3v output c4 package order info dm plastic soic 8-pin du plastic msop 8-pin t j ( c) i nput o utput rohs compliant / pb-free transition dc: 0440 rohs compliant / pb-free transition dc: 0432 1.8v ? 4.4v adj lx1882-00cdm lx1882-00cdu 0 to 70 2v ? 4.4v 3.3v lx1882-33cdm lx1882-33cdu note: available in tape & reel. append the letters ?tr? to the part number. (i.e. LX1882-00CDU-TR) l l x x 1 1 8 8 8 8 2 2
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 2 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products absolute maximum ratings v in to gnd .................................................................................................... -0 .3v to 5v v out voltage.................................................................................................. -0 .3v to 6v cpo to g round........................................................................................................... 10v shdn , filt, fb voltage to groun d........................................... -0.3v to (vin + 0.3v) v out short ?circuit d uration.............................................................................ind efinite i out .......................................................................................................................... 90ma operating temperature range commercial.................................................................................................... 0c to 70c storage temperat ure ................................................................................ -6 5c to 150c maximum junction temperat ure ............................................................................ 125c pb-free / rohs peak p ackage solder reflow temp. (40 s econd max. exposure) ........260c (+0, -5) note: exceeding these ratings could cause damage to th e device. all voltages are with respect to ground. currents are positive into, ne gative out of specified terminal. thermal data dm plastic 8-pin soic t hermal r esistance -j unction to a mbient , ja 163c/w t hermal r esistance -j unction to c ase , jc 38c/w du plastic 8-pin msop t hermal r esistance -j unction to a mbient , ja 206c/w t hermal r esistance -j unction to c ase , jc 39c/w junction temperature calculation: t j = t a + (p d x ja ). the ja numbers are guidelines for the ther mal performance of the device/pc-board system. all of the above assume no ambient airflow. package pin out v out shdn fb gnd c + v in c - cpo 1 2 3 4 5 6 7 8 _______ dm p ackage (top view) cpo c - fb v in v out gnd shdn 1 2 3 4 5 6 7 8 ______ c + du p ackage (top view) rohs / pb-free 100% matte tin lead finish functional pin description p in n ame p in # d escription v out 1 regulated output voltage. it is recommended to bypass v out with a low esr capacitor (> 2f) placed as close to the pin as possible for best performan ce. for the adjustable version, the ou tput voltage range is 2.5v to 5.5v. shdn 2 shutdown pin. the lx1882 is in shutdown mode when a logi c low is applied to this pin. inversely, a logic high applied to this pin enables the device . when in shutdown mode, the charge pump output is disconnected from v in (cpo will be high impedance) and v out is connected to ground through an internal 100 ? switch. fb 3 adjustable version only. the output voltage can be set by two resistors with the following relationship: v out = fb * (1+ (r 1 /r 2 )) where r 1 is the resistor connected between v out and fb, and r 2 is the resistor connected between fb and gnd (see fi gure 3 on page 6). filt 3 fixed version only. filter pin for internal voltage refere nce. typically a 1nf capacitor is connected from filt to gnd. gnd 4 system ground. c - 5 flying capacitor negative input. v in 6 input voltage. the input voltage range is 1.8v to 4.4v for the lx1882-00 and 2v to 4.4v for the lx1882-33. v in should be bypassed with a > 2f lo w esr capacitor placed as close to the pin as possible for best performance. a minimum capacitanc e value of 0.1f is required. c + 7 flying capacitor positive input. cpo 8 charge pump output voltage. cpo is approximately 1.95(v in ) at low loads. cpo should be bypassed with a low esr capacitor (>2f). p p a a c c k k a a g g e e d d a a t t a a
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 3 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products simplified block diagram charge pump 7 5 4 power -on reset 550khz osc 1 led n+1 8 3 6 2 v in 1.8v to 4.4v ldo v out off on c3 c4 c2 c1 1:100 shd shd rg clk 1.175 vref vin sdrg sd2 sd2 rg tsd c+ gnd fb c- cpo figure 1 ? lx1882-00 block diagram b b l l o o c c k k d d i i a a g g r r a a m m
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 4 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products simplified block diagram charge pump 7 5 4 power -on reset 550khz osc 1 8 6 2 v in 1.8v to 4.4v ldo v out off on c3 c4 c2 c1 1:100 shd shd rg clk 1.175 vref vin sdrg sd2 sd2 rg tsd c+ gnd filt c- cpo r1 r2 1nf 3 figure 2 ? lx1882-33 block diagram b b l l o o c c k k d d i i a a g g r r a a m m
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 5 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products electrical characteristics unless otherwise specified, the following specifications apply over the operating ambient temperature 0 c t a 70 c except where otherwise noted. test conditions: shdn =v in =3v, c1=0.22f, c2 = c3 = c4 = 4.7f lx1882-xx parameter symbol test conditions min typ max units operating voltage v in lx1882-00 lx1882-33 1.8 2.0 4.4 4.4 v i vin shutdown current shdn =0v 1 5 a i vin operating current i out =0ma, burst mode operation 250 400 a fb input current fb=1.175v -50 50 na fb voltage v fb lx1882-00 only; i out =1ma 1.15 1.175 1.20 v regulated output voltage v out lx1882-33; i out =1ma 3.23 3.30 3.37 v v out temperature coefficient t a =25oc 150 ppm charge pump oscillator frequency f osc i out > 200a, v in =1.8v to 4.4v 480 550 620 khz v in =1.8v, i out =10ma 22 30 ? v in =3v, i out =10ma 16 20 ? cpo (charge pump output) output resistance r cpo v in =4.4v, i out =10ma 10 20 ? v out dropout voltage (note 1) ? v lx1882-00; i out =10ma, v out =2.7v lx1882-33; i out =10ma, v out =3.3v 100 75 160 120 mv v out enable time i out =10ma, t a =25oc 350 s v out line regulation ? v out (v in ) v in =3v to 4v, i out =0ma 17 30 mv i out =1ma to 10ma 3 10 mv v out load regulation ? v out (i ou t ) i out =1ma to 50ma 40 mv shdn =0v, resistance measured to gnd, v in =1.8v 120 350 ? v out shutdown resistance shdn =0v, resistance measured to gnd, v in =4.4v 50 150 ? shdn input threshold v in =1.8v to 4.4v 0.4 1 1.6 v shdn =v in -1 1 a shdn input current shdn =0v -1 1 a note 1: dropout voltage is defined as the minimum input to output differential required to maintain regulation. e e l l e e c c t t r r i i c c a a l l s s
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 6 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products application information o peration using a switched-capacitor charge pump, the lx1882 generates a charge pump output (cpo) voltage approximately twice the input voltage. the charge pump is a doubler configuration using one external fl ying capacitor. a 2-phase non-overlapping clock, generated from an internally trimmed oscillator, controls the charge pump switches to ensure maximum efficiency. cpo powers an internal low dropout (ldo) linear regulator providing a regulated output at v out. cpo can also be used to drive an external load; refer to section on cpo loading. the cpo voltage and v in are sensed via internal comparators for power-up conditioning. at power-up, the ldo is disabled and the lo ad is removed from cpo. the ldo is enabled when the cpo voltage reaches 1.75(v in ). when the cpo voltage drops below 1.45(v in ), the ldo is disabled. sensing the lx1882 output current determines the charge pump operating mode. if the output current is less than 100ua and the cpo voltage is greater than 1.95(v in ), the charge pump operates in burst mode. in burst mode, the clock is disabled for increased efficiency, until the cpo voltage droops approximately 100mv at which time the clock is enabled. to minimize noise at cpo, a low esr capacitor of at least 2uf should be used. the internal ldo can supply up to 50ma of output current and requires an output capacitor between v out and gnd to stabilize the internal control loop. a low esr capacitor of at least 2uf is recommended. a djustable o utput v oltage the lx1882-00 develops a 1.175 reference voltage between the fb pin and gnd. the output vol tage can be set using an external resistor divider (see figure 3). 7 8 4 1 2 3 6 v in 1.8v to 4.4v off on v out = 1.175 [1+(r 1 /r 2 )] shdn fb gnd c+ v in c- cpo lx1882-00 5 c1 c2 c3 c4 v out r1 r2 figure 3 . lx1882-00; adjustable version the output voltage range is 2.5v to 5.5v. m aximum v out and i out c alculations using the open circuit cpo voltage ( 2(v in )), the dropout voltage of the ldo, and the effective charge pump output resistance, the maximum availabl e output voltage and current can be calculated. m aximum v out and i out c alculations ( cont ? d ) the maximum available output voltage can be calculated given a minimum input voltage and output current load using the following equation: v out (max) = 2(v in (min) ? (i out )(r cpo ) - v dropout with the condition that (i out )(r cpo ) < 0.55vin . example: v in (max) = 3v i out = 10ma r cpo (max) = 20 ? unloaded cpo voltage (max) = 6v loaded cpo voltage = 6v ? (10ma)(20 ? ) = 5.8v v dropout = 0.075v v out (max) = (6v) ? (0.2) ? (0.075) = 5.73 v out < 5.5 and (i out )(r cpo ) < 0.55v in , 0.2v < 1.65v for minimum noise applications, keep the ldo out of dropout to prevent cpo noise from coupling into v out . c apacitor s election to reduce noise and ripple, it is recommended to use low esr capacitors for c2 (v out ), c3 (cpo), and c4 (v in ); see figure 1. for stability purposes, c2 must be at least 2uf and c3 must be equal to or greater than c2. it is also recommended that c4 be at least 2uf. a 2.2 ? resistor may be required between v in and the supply to reduce ripple that may be induced onto the voltage rail due to large instantaneous currents demanded by the charge pump. a 0.22uf, low esr ceramic capacitor is recommended for c1 (charge pump flying capacitor). to improve v out ripple for light loads or for high v in , a smaller capacitor could be used for c1 to reduce ripple on cpo. to minimize the enable time, the cpo filter capacitor (c3) should be at least 2x the v out filter capacitor (c2). at power-up, the ldo is disabled and the load is removed from cpo. when the cpo voltage reaches 1.75(v in ) the ldo is enabled and a large amount of charge is dumped from the cpo capacitor into the v out capacitor. if the amount of charge dumped causes the cpo voltage to fall below 1.45(v in ), the ldo will be disabled and the cpo voltage will have to charge up to 1.75(v in ) to enable the ldo. this cycle results in an extended enable time. for the lx1882-33, a 1nf filter capacitor should be connected between the filt pin and gnd for optimum noise performance. cpo l oading the cpo can drive an external load. current draw by the external load will reduce the maximum available current at v out (i.e. if cpo is driving a 5ma load, the available current from v out will be reduced by 5ma). a a p p p p l l i i c c a a t t i i o o n n
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 7 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products application information (continued) p ower -o n r eset the lx1882 contains power-on reset circuitry that insures all internal functions are correctly initialized upon power-up. once the input voltage reaches approxi mately 1v, the power-on reset circuit enables the device as long as the shdn pin is held high. s hutdown the shdn pin allows the lx1882 to be enabled or disabled. a logic zero (0.4v) on the shdn pin places the lx1882 in shutdown mode, reducing the supply current to < 5ua and connecting v out to ground through a 100 ? switch. in addition, cpo will be high impedanc e and disconnected from v in . if the shutdown feature is no t required, connect shdn to v in to continuously enable the part. current limit protection the lx1882 includes over current protection. when the output load current exceeds typically 60ma, the circuit forces the regulator output to decrease. temperature protection the thermal protection shuts the lx1882 down when the junction temperature exceeds 140 0 c. exposure to absolute maximum rated conditions for extended periods may affect device reliability (see thermal considerations below). t hermal c onsiderations thermal shutdown protects the circuit from thermal overload caused from a rise in junction temperature during power dissipation. this means of protection is intended for fault protection only and not as a means from current or power limiting during normal application usage. proper thermal evaluation should be done to ensure that the junction temperature does not exceed its maximum rating (125c). due to variation in individual device electrical characteristics and thermal resistance, the built in thermal overload protection may be activated at power levels slightly above or below the rated dissipation. a a p p p p l l i i c c a a t t i i o o n n
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 8 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products evaluation board figure 4 . lx1882 led driver evaluation board (top view) figure 5 . lx1882 led driver evaluation board (bottom view) table 1: input and output pin assignments pin name description vin input voltage test point. use this pin to monitor the input voltage. vout output voltage test point. use this pin to monitor out put voltage. output voltage is determined using the following equation: v out = v fb [1 + (r 1 /r 2 )] ? v set (r 1 /r 2 ); where v set = i led (r 3 ) and v fb = 1.175v (see figure 6). fb feedback pin test point. use this pin to monitor fe edback voltage. min = 1.150v, typical = 1.175v, max = 1.20v. cpo charge pump output test point. use this pin to monitor the charge pump output or connec t an external load to this pin for the charge pump to drive. note: maximum output current available is reduced by the amount of current drawn from the cpo pin. shdn shutdown test point. use this pin to monitor opera ting status of device. logic high = enabled; logic low = shutdown mode (see table 2 below). gnd system ground test points. external vcc external dc input voltage. apply a 1.8v to 4.4v input to this pin when switch ?vcc? is set to ?ext?. . clip the positive lead of the external power supply to the pin of the 2-pin header labeled ?external vcc +?. clip the negative lead of the external power supply to the pin of the 2-pin header labeled ?external vcc ??. table 2: switch position assignments switch name functional description vcc ext use this position when powering t he board from an external power supply. vcc bat use this position when powering the board using ?aa? batteries. three ?aa? batteries can be installed via battery clips located on the back of the board. shdn enable use this position to enable the lx1882. shdn disable use this position to disable the lx1882. e e v v a a l l u u a a t t i i o o n n b b o o a a r r d d
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 9 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products evaluation board (continued) table 3: factory installed component list for the lx1882 evaluation board quantity part reference description manufacturer part number 1 c1 capacitor, ceramic, 0.22uf, 16v, 10%, 0805 type smt panasonic ecj2vb1c224k 3 c2 - c4 capacitor, ceramic x5r, 4.7uf, 25v, 1210 type smt taiyo yuden cetmk325bj475mn 4 d1 - 4 white led chicago miniature cmd333uwc 3 j1 ? j3 terminal battery clip, positive button, aa contacts keystone 596 3 j4 ? j6 terminal battery clip, negative button, aa contacts keystone 590 1 p2 header, 2-pin molex 42375-2 1 r1 resistor, 46.4k, 1/10w,1%, 0805 type smt panasonic erj6ekf4642 1 r2 resistor, 14.3k, 1/10w,1%, 0805 type smt panasonic erj6ekf1432 4 r3 - r6 resistor, 30.1, 1/10w,1%, 0805 type smt panasonic erj6ekf30r1 1 r8 resistor, 10.0k, 1/10w,1%, 0805 type smt panasonic erj6ekf1002 2 s1, s2 switch, spdt, 1 position, smt dip type cts 204-121st 9 tp1 ? tp9 terminal, surface mount, compact style test point keystone 5016 1 u1 ic, lx1882 charge pump doubler with linear regulator microsemi lx1882-00cdm fb gnd gnd gnd gnd c2 4.7f 25v vout shdn cpo gnd vin shdn fb vout c+ c4 0.1f 25v r3 30.1 c- r2 14.3k r1 46.4k r8 10.0k c1 0.22f 16v c3 4.7f 25v external vcc + - j2 j1 "aa" battery j3 "aa" battery "aa" battery r4 30.1 r5 30.1 r6 30.1 d1 d2 d3 d4 s1 s2 cpo vin v set v fb v out = v fb [1+(r 1 /r 2 ) - v set (r 1 /r 2 ); where v set = i led (r 3 ), v fb = 1.175v i led vbat ext enable disable figure 6 ? lx1882-00 evaluation board schematic; led driver application e e v v a a l l u u a a t t i i o o n n b b o o a a r r d d
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 10 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products characteristic curves 5 7 9 11 13 15 17 19 21 23 2 2.25 2.5 2.75 3 3.25 3.5 3.75 4 4.25 4.5 vin (v) cpo resistance (ohms) figure 7 ? cpo output resistance vs. input voltage ; t a = 25c, c1 = 0.22f, c2, c3, c4 = 4.7f, c filt = 0.1f 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 3.33 3.34 3.35 0 5 10 15 20 25 30 35 40 45 50 output load current (ma) vout voltage (v) lx2.5v lx3.0v lx3.5v lx4.0v lx4.5v figure 8 ? lx1882-33 output voltage vs. load current ; t a = 25c, c1 = 0.22f, c2, c3, c4 = 4.7f, c filt = 0.1f 3.20 3.22 3.24 3.26 3.28 3.30 3.32 3.34 3.36 3.38 -50 -25 0 25 50 75 100 125 temperature ('c) vout voltage (v) vin=2.0v vin=4.4v figure 9 ? lx1882-33 output voltage vs. temperature ; c1 = 0.22f, c2, c3, c4 = 4.7f, c filt = 0.1f 1.150 1.155 1.160 1.165 1.170 1.175 1.180 1.185 -50 -25 0 25 50 75 100 125 temperature ('c) vout voltage (v) vin=2.0v vin=4.4v figure 10 ? lx1882-00 output voltage vs. temperature ; c1 = 0.22f, c2, c3, c4 = 4.7f c c h h a a r r t t s s
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 11 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products characteristic curves 3 4 5 6 7 8 9 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 vin (v) cpo voltage (v) lx00ma lx01ma lx10ma lx25ma lx50ma figure 11 ? cpo voltage vs. input voltage ; t a = 25c, c1 = 0.22f, c2, c3, c4 = 4.7f, c filt = 0.1f 1 2 3 4 5 6 7 8 9 10 0 5 10 15 20 25 30 35 40 45 50 output load current (ma) cpo voltage (v) lx2.0v lx2.5v lx3.0v lx3.5v lx4.0v lx4.5v figure 12 ? cpo voltage vs. load current ; t a = 25c, c1 = 0.22f, c2, c3, c4 = 4.7f, c filt = 0.1f 50 60 70 80 90 100 110 120 1.5 2 2.5 3 3.5 4 4.5 5 input voltage ( v ) vout shdn resistance - ( ohms ) figure 13 ? v out shutdown resistance vs. input voltage ; t a = 25c, c1 = 0.22f, c2, c3, c4 = 4.7f, c filt = 0.1f 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 0 5 10 15 20 25 30 35 40 45 50 output load current - (ma) efficiency - (%) 2.0v 2.5v 3.0v 3.5v 4.0v 4.5v figure 14 ? efficiency vs. output current ; t a = 25c, c1 = 0.22f, c2, c3, c4 = 4.7f, c filt = 0.1f c c h h a a r r t t s s
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 12 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products mechanical drawing du 8-pin msop n l p k m b d g h c a m illimeters i nches dim min max min max a 2.85 3.05 .112 .120 b 2.90 3.10 .114 .122 c ? 1.10 ? 0.043 d 0.25 0.40 0.009 0.160 g 0.65 bsc 0.025 bsc h 0.38 0.64 0.015 0.025 j 0.13 0.18 0.005 0.007 k 0.95 bsc 0.037 bsc l 0.40 0.70 0.016 0.027 m 3 3 n 0.05 0.15 0.002 0.006 p 4.75 5.05 0.187 0.198 dm 8-pin plastic soic a p g b k l f c d j m m illimeters i nches dim min max min max a 4.83 5.00 0.190 0.197 b 3.81 3.94 0.150 0.155 c 1.35 1.75 0.053 0.069 d 0.33 0.51 0.013 0.020 f - 0.77 - 0.030 g 1.27 bsc 0.050 bsc j 0.19 0.25 0.007 0.010 k 0.13 0.25 0.005 0.010 l 4.80 5.21 0.189 0.205 m - 8 - 8 p 5.79 6.20 0.228 0.244 *lc - 0.10 - 0.004 * lead coplanarity note: 1. dimensions do not include mold flash or protrusions; these shall not exceed 0.155mm(.006?) on any side. lead dimension shall not include solder coverage. m m e e c c h h a a n n i i c c a a l l s s
microsemi integrated products division 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 13 copyright ? 2000 rev. 1.0e, 2005-03-03 www. microsemi . com lx1882 char g e pump doubler with linear re g ulator p roduction d ata s heet integrated products notes production data ? information contained in this document is proprietary to microsemi and is current as of publication date. this document may not be modified in any way without the express written consent of microsemi. product processing does not necessarily include testing of all parameters. microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time. n n o o t t e e s s

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