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ilc7080/81 50/100ma sot-23 cmos rf ldo? regulators impala linear corporation impala linear corporation 1 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 the ilc7080/81 are 50 or 100ma low dropout (ldo) volt- age regulators designed to provide a high performance solution to low power systems. the devices offer a typical combination of low dropout and low quiescent current expected of cmos parts, while uniquely providing the low noise and high ripple rejection characteristics usually only associated with bipolar ldo regulators. the devices have been optimized to meet the needs of modern wireless communications design; low noise, low dropout, small size, high peak current, high noise immuni- ty. the ilc7080/81 are designed to make use of low cost ceramic capacitors while outperforming other devices that require tantalum capacitors. general description features ? ultra low 1mv dropout per 1ma load ? 1% output voltage accuracy ? uses low esr ceramic output capacitor to minimize noise and output ripple ? only 100a ground current at 100ma load ? ripple rejection up to 85db at 1khz, 60db at 1mhz ? less than 80v rms noise at bw = 100hz to 100khz ? excellent line and load transient response ? over current / over temperature protection ? guaranteed up to 80/150ma output current ? industry standard five lead sot-23 package ? fixed 2.85v, 3.0v, 3.3v, 3.6v, 4.7v, 5.0v and adjustable output voltage options ? metal mask option available for custom voltages between 2.5 to 10v ? cellular phones ? wireless communicators ? pdas / palmtops / organizers ? battery powered portable electronics applications typical circuit ilc7080 ilc7081 v out v in c out c noise sot23-5 123 4 5 on off ordering information (t a = - 40c to +85c) ilc7080aim5 - xx 50ma, fixed voltage ilc7080aim5 - adj 50ma adjustable voltage ilc7081aim5 - xx 100ma, fixed voltage ilc7081aim5 - adj 100ma, adjustable voltage note: fixed voltage options are defined by 2-digit code as shown in the package markings information section of the datasheet.
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 2 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 pin description ilc7081/81-xx (fixed voltage version) pin number pin name pin description 1 v in connect direct to supply 2 gnd ground pin. local ground for c noise and c out . 3 on/off by applying less than 0.4v to this pin the device will be turned off. 4 c noise optional noise bypass capacitor may be connected between this pin and gnd (pin 2). do not connect c noise directly to the main power ground plane. 5 v out output voltage. connect c out between this pin and gnd (pin 2) pin description ilc7081/81-adj (adjustable voltage version) pin number pin name pin description 1 v in connect direct to supply 2 gnd ground pin. local ground for c noise and c out . 3 on/off by applying less than 0.4v to this pin the device will be turned off. 4 v adj voltage feedback pin to set the adjustable ou tput voltage. do not connect a capacitor to this pin. 5 v out output voltage. connect c out between this pin and gnd (pin 2) pin package configurations ilc7080-xx ilc7081-xx sot23-5 on off c noise v in v out gnd 123 4 5 ilc7080-adj ilc7081-adj sot23-5 on off v adj v in v out gnd 123 4 5
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 3 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 parameter symbol ratings units input voltage on/off input voltage v in v on/off -0.3 to +13.5 -0.3 to v in v output current i out short circuit protected ma output voltage v out -0.3 to v in +0.3 v package power dissipation (sot-23-5) p d 250 (internally limited) mw maximum junction temp range t j(max) -40~+150 c storage temperature t stg -40~+125 c operating ambient temperature t a -40 to +85 c package thermal resistance ja 333 c/w absolute maximum ratings (note 1) absolute maximum ratings (note 1) parameter symbol conditions min typ max units input voltage range v in 2 13 v output voltage v out i out = 1ma 1ma < i out < 100ma 1ma < i out < 100ma - 1 - 1.5 - 3.5 v out(nom) +1 1.5 +3.5 % feedback voltage (adj version) v adj 1.215 1.202 1.240 1.265 1.278 v line regulation ? v out / (v out * ? v in ) v out(nom) + 1v < v in < 12v 0.007 0.014 0.032 %/v i out = 0ma 0.1 1 2 i out = 10ma 10 25 35 7080/81 i out = 50ma 50 75 100 i out = 100ma 100 150 200 dropout voltage (note 3) v in ? v out 7081 only i out = 150ma 150 22 5 300 mv unless otherwise specified, all limits are at t a = 25c; v in = v out(nom) + 1v, i out = 1ma, c out = 1f, v on/off = 2v. boldface limits apply over the operating temperature range. (note 2)
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 4 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 parameter symbol conditions min typ max units i out = 0ma 95 200 220 i out = 10ma 100 220 240 7080/81 i out = 50ma 100 220 240 i out = 100ma 100 240 260 ground pin current i gnd 7081 only i out = 150ma 115 260 280 a shutdown (off) current i on/off v on/off = 0v 0.1 2 a on/off input voltage v on/off high = regulator on low = regulator off 2.0 13 0.6 v on/off pin input current (note 5) i in(on/off) v on/off = 0.6v, regulator off v on/off = 2v, regulator on 0.3 1 a peak output current (note 4) i out(peak) v out > 0.95v out(nom) , tpw = 2ms 400 500 ma output noise voltage e n bw = 300hz to 50khz, c noise = 0.01f 80 v rms freq = 1khz 85 freq = 10khz 70 ripple rejection ? v out / ? v in c out = 4.7f, i out = 100ma freq = 1mhz 60 db dynamic line regulation ? v out(line) v in : v out(nom) + 1v to v out(nom) + 2v, tr/tf = 2s; i out = 100ma 4 mv dynamic load regulation ? v out(load) i out : 0 to 100ma; d(i out )/dt = 100ma/s with c out = 0.47f with c out = 2.2f 50 25 mv short circuit current i sc v out = 0v 600 ma note 1: absolute maximum ratings indicate limits which when exceeded may result in damage to the component. electrical specific ations do not apply when operating the device outside of its rated operating conditions. note 2: specified min/max limits are production tested or guaranteed through correlation based on statistical control methods. measurements are taken at constant junction temperature as close to ambient as possible using low duty pulse testing. note 3: dropout voltage is defined as the input to output differential voltage at which the output voltage drops 2% below the n ominal value measured with a 1v differential. note 4: guaranteed by design note 5: the device?s shutdown pin includes a 2mw internal pull down resistor connected to ground. electrical characteristics ilc7080/81aim5 (cont.) unless otherwise specified, all limits are t a = 25c; v in = v out(nom) + 1v, i out = 1ma, c out = 1f, v on/off = 2v. boldface limits apply over the operating temperature range. (note 2)
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 5 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 the ilc7080/81 ldo design is based on an advanced cir- cuit configuration for which patent protection has been applied. typically it is very difficult to drive a capacitive out- put with an amplifier. the output capacitance produces a pole in the feedback path, which upsets the carefully tai- lored dominant pole of the internal amplifier. traditionally the pole of the output capacitor has been ?eliminated? by reducing the output impedance of the regulator such that the pole of the output capacitor is moved well beyond the gain bandwidth product of the regulator. in practice, this is difficult to do and still maintain high frequency operation. typically the output impedance of the regulator is not sim- ply resistive, such that the reactive output impedance inter- acts with the reactive impedance of the load resistance and capacitance. in addition, it is necessary to place the domi- nant pole of the circuit at a sufficiently low frequency such that the gain of the regulator has fallen below unity before any of the complex interactions between the output and the load occur. the ilc7080/81 does not try to eliminate the output pole, but incorporates it into the stability scheme. the load and output capacitor forms a pole, which rolls off the gain of the regulator below unity. in order to do this the output impedance of the regulator must be high, looking like a current source. the output stage of the regulator becomes a transconductance amplifier, which converts a voltage to a current with a substantial output impedance. the circuit which drives the transconductance amplifier is the error amplifier, which compares the regulator output to the band gap reference and produces an error voltage as the input to the transconductance amplifier. the error ampli- fier has a dominant pole at low frequency and a ?zero? which cancels out the effects of the pole. the zero allows the regulator to have gain out to the frequency where the output pole continues to reduce the gain to unity. the con- figuration of the poles and zero are shown in figure 1. instead of powering the critical circuits from the unregulat- ed input voltage, the cmos rf ldo powers the internal circuits such as the bandgap, the error amplifier and most of the transconductance amplifier from the boot strapped regulated output voltage of the regulator. this technique offers extremely high ripple rejection and excellent line tran- sient response. a block diagram of the regulator circuit used in the ilc7080/81 is shown in figure 2, which shows the input-to- output isolation and the cascaded sequence of amplifiers that implement the pole-zero scheme outlined above. the ilc7080/81 were designed in a cmos process with some minor additions, which allow the circuit to be used at input voltages up to 13v. the resulting circuit exceeds the frequency response of traditional bipolar circuits. the ilc7080/81 is very tolerant of output load conditions with the inclusion of both short circuit and thermal overload pro- tection. the device has a very low dropout voltage, typical- ly a linear response of 1mv per milliamp of load current, and none of the quasi-saturation characteristics of a bipolar output device. all the good features of the frequency response and regulation are valid right to the point where the regulator goes out of regulation in a 4mv transition region. because there is no base drive, the regulator is capable of providing high current surges while remaining in regulation. this is shown in the high peak current of 500ma which allows for the ilc7080/81 to be used in systems that require short burst mode operation. dominant pole output pole 85 db compensating zero unity gain frequency gain figure 1: ilc7080/81 rf ldo frequency response operation
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 6 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 on/off gnd v out v in c noise feedback bandgap reference v ref error amplifier trans- conductance amplifier internal v dd figure 2: ilc7080/81 rf ldo regulator block digram shutdown (on/off) operation the ilc7080/81 output can be turned off by applying 0.4v or less to the device?s on/off pin (pin 3). in shutdown mode, the ilc7080/81 draws less than 1ma quiescent cur- rent. the output of the ilc7081 is enabled by applying 2v to 13v at the on/off pin. in applications where the ilc7080/81 output will always remain enabled, the on/off pin may be connected to v in (pin 1). the ilc7080/81?s shutdown circuitry includes hysteresis, as such the device will operate properly even if a slow moving signal is applied to the on/off pin. the device?s shutdown pin includes a 2m ? internal pull down resistor connected to ground. short circuit protection the ilc7080/81 output can withstand momentary short cir- cuit to ground. moreover, the regulator can deliver very high output peak current due to its 1a instantaneous short circuit current capability. thermal protection the ilc7080/81 also includes a thermal protection circuit which shuts down the regulator when die temperature exceeds 170c due to overheating. in thermal shutdown, once the die temperature cools to below 160c, the regula- tor is enabled. if the die temperature is excessive due to high package power dissipation, the regulator?s thermal cir- cuit will continue to pulse the regulator on and off. this is called thermal cycling. excessively high die temperature may occur due to high dif- ferential voltage across the regulator or high load current or high ambient temperature or a combination of all three. thermal protection protects the regulator from such fault conditions and is a necessary requirement in today?s designs. in normal operation, the die temperature should be limited to under 150c. adjustable output voltage figure 3 shows how an adjustable output voltage can be easily achieved using ilc7080/81-adj. the output voltage, v out is given by the following equation: v out = 1.24v x (r1/r2 + 1) for best results, a resistor value of 470k ? or less may be used for r2. the output voltage can be programmed from 2.5v to 12v. note: an external capacitor should not be connected to the adjustable feedback pin (pin 4). connecting an external capacitor to pin 4 may cause regulator instability and lead to oscillations. ilc7080-adj ilc7081-adj v out v in c out sot23-5 c in r1 r2 on off 123 4 5 v adj figure 3: application circuit for adjustable output voltage
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 7 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 maximum output current the maximum output current available from the ilc7080/81 is limited by the maximum package power dissipation as well as the device?s internal current limit. for a given ambi- ent temperature, t a , the maximum package power dissipa- tion is given by: p d(max) = (t j(max) - t a ) / ja where t j(max) = 150c is the maximum junction temperature and ja = 333c/w is the package thermal resistance. for example at t a = 85c ambient temperature, the maximum package power dissipation is; p d(max) = 195mw. the maximum output current can be calculated from the fol- lowing equation: i out(max) < p d(max) / (v in - v out ) for example at v in = 6v, v out = 5v and t a = 85c, the maximum output current is i out(max) < 195ma. at higher output current, the die temperature will rise and cause the thermal protection circuit to be enabled. application hints figure 4 shows the typical application circuit for the ilc7080/81. input capacitor an input capacitor c in of value 1mf or larger should be con- nected from v in to the main ground plane. this will help to filter supply noise from entering the ldo. the input capac- itor should be connected as close to the ldo regulator input pin as is practical. using a high-value input capacitor will offer superior line transient response as well as better power supply ripple rejection. a ceramic or tantalum capac- itor may be used at the input of the ldo regulator. note that there is a parasitic diode from the ldo regulator output to the input. if the input voltage swings below the regulator?s output voltage by a couple of hundred milivolts then the regulator may be damaged. this condition must be avoided. in many applications a large value input capacitor, c in , will hold v in higher than v out and decay slower than v out when the ldo is powered off. output capacitor selection impala strongly recommends the use of low esr (equiva- lent series resistance) ceramic capacitors for c out and c noise . the ilc7080/81 is stable with low esr capacitor (as low as zero ? ). the value of the output capacitor should be 1f or higher. either ceramic chip or a tantalum capaci- tor may be used at the output. use of ceramic chip capacitors offer significant advantages over tantalum capacitors. a ceramic capacitor is typically considerably cheaper than a tantalum capacitor, it usually has a smaller footprint, lower height, and lighter weight than a tantalum capacitor. furthermore, unlike tantalum capaci- tors which are polarized and can be damaged if connected incorrectly, ceramic capacitors are non-polarized. low value ceramic chip capacitors with x7r dielectric are avail- able in the 100pf to 4.7f range, while high value capaci- tors with y5v dielectric are available in the 2200pf to 22f range. evaluate carefully before using capacitors with y5v dielectric because their esr increases significantly at cold temperatures. figure 10 shows a list of recommended ceramic capacitors for use at the output of ilc7080/81. note: if a tantalum output capacitor is used then for stable opera- tion impala recommends a low esr tantalum capacitor with max- imum rated esr at or below 0.4 ? . low esr tantalum capacitors, such as the tps series from avx corporation (www.avxcorp.com) or the t495 series from kemet (www.kemet.com) may be used. in applications where a high output surge current can be expected, use a high value but low esr output capacitor for superior load transient response. the ilc7080/81 is stable with no load. noise bypass capacitor in low noise applications, the self noise of the ilc7080/81 can be decreased further by connecting a capacitor from the noise bypass pin (pin 4) to ground (pin 2). the noise bypass pin is a high impedance node as such, care should be taken in printed circuit board layout to avoid noise pick- up from external sources. moreover, the noise bypass capacitor should have low leakage. noise bypass capacitors with a value as low as 470pf may be used. however, for optimum performance, use a 0.01f or larger, ceramic chip capacitor. note that the turn on and turn off response of the ilc7080/81 is inversely proportional to the value of the noise bypass capacitor. for fast turn on and turn off, use a small value noise bypass capacitor. in applications were exceptionally low output noise is not required, consider omitting the noise bypass capacitor altogether. ilc7080 ilc7081 v out v in c out c noise sot23-5 123 4 5 on off figure 4: basic application circuit for fixed output voltage versions
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 8 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 the effects of esr (equivalent series resistance) the esr of a capacitor is a measure of the resistance due to the leads and the internal connections of the component. typically measured in m ? (milli-ohms) it can increase to ohms in some cases. wherever there is a combination of resistance and current, voltages will be present. the control functions of ldos use two voltages in order to maintain the output precisely; v out and v ref . with reference to the block diagram in figure 2, v out is fed back to the error amplifier and is used as the supply volt- age for the internal components of the 7080/81. so any change in v out will cause the error amplifier to try to com- pensate to maintain v out at the set level and noise on v out will be reflected into the supply of each internal cir- cuit. the reference voltage, v ref , is influenced by the c noise pin. noise into this pin will add to the reference volt- age and be fed through the circuit. these factors will not cause a problem if some simple steps are taken. figure 5 shows where these added esr resistances are present in the typical ldo circuit. with this in mind low esr components will offer better per- formance as ldos may be exposed to large transients of output voltage, and current flows through the capacitors in order to filter these transient swings. esr is less of a prob- lem with c in as the voltage fluctuations at the input will be filtered by the ldo. however, being aware of these current flows, there is also another potential source of induced voltage noise from the resistance inherent in the pcb trace. figure 6 shows where the additive resistance of the pcb can manifest itself. again these resistances may be very small, but a summation of several currents can develop detectable voltage ripple and will be amplified by the ldo. particularly the accumulation of current flows in the ground plane can develop significant voltages unless care is taken. with a degree of care, the ilc7080/81 will yield outstanding performance. printed circuit board layout guidelines as was mentioned in the previous section, to take full advantage of any high performance ldo regulator requires paying careful attention to grounding and printed circuit board (pcb) layout. figure 7 shows the effects of poor grounding and pcb lay- out caused by the esr and pcb resistances and the accu- mulation of current flows. note particularly that during high output load current, the ldo regulator?s ground pin and the ground return for c out and c noise are not at the same potential as the system ground. this is due to high frequency impedance caused by pcb?s trace inductance and dc resistance. the current loop between c out , c noise and the ldo regulator?s ground pin will degrade performance of the ldo. figure 8 shows an optimum schematic. in this schematic, high output surge current has little effect on the ground cur- rent and noise bypass current return of the ldo regulator. note that the key difference here is that c out and c noise are directly connected to the ldo regulator?s ground pin. the ldo is then separately connected to the main ground plane and returned to a single point system ground. the layout of the ldo and its external components are also based on some simple rules to minimize emi and output voltage ripple. v out v in ilc7080 ilc7081 c out c noise sot23-5 on off r* r c i out i c 4 5 123 r* c in rf ldo tm regulator ilc7080 ilc7081 v in c out c noise sot23-5 esr r pcb i 2 v out i out r pcb esr i 1 r pcb r pcb 4 5 123 v in r pcb on off 5 4 3 2 1 load figure 5: esr in c out and c noise figure 6: inherent pcb resistance figure 7: effects of poor circuit layout
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 9 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 4 5 1 23 connect c in between v in of the ilc7080/81 and the ?ground plane?. keep the ground side of c out and c noise connected to the ?local ground? and not directly to the ?ground plane?. on multilayer boards use component side copper for grounding around the ilc7080/81 and connect back to a ?ground plane? using vias. if using a dc-dc converter in your design, use a star grounding system with separate traces for the power ground and the control signals. the star should radiate from where the power supply enters the pcb. place all rf ldo related components; ilc7080/81, input capacitor c in , noise bypass capacitor c noise and output capacitor c out as close together as possible. keep the output capacitor c out as close to the ilc7080/81 as possible with very short traces to the v out and gnd pins. the traces for the related components; ilc7080/81, input capacitor c in , noise bypass capacitor c noise and output capacitor c out can be run with minimum trace widths close to the ldo. maintain a separate ?local ground? remote from the ?ground plane? to ensure a quiet ground near the ldo. figure 9 shows how this circuit can be translated into a pcb layout. figure 8: recommended application circuit schematic label part number manufacturer description u1 ilc7081aim5 - 30 impala linear 100ma rf ldo? j1 69190 - 405 berg connector, four position header c in grm40 y5v 105z16 murata ceramic capacitor, 1f, 16v, smt (size 0805) c noise ecu - v1h103kbv panasonic ceramic capacitor, 0.01f, 16v, smt (size 0603) c out grm42 - 6x5r475k10 murata ceramic capacitor, 4.7f, 16v, smt (size 1206) evaluation board parts list for printed circuit board shown above 1. 2. 3. 4. 1. 2. 3. 4. grounding recommendations layout considerations figure 9: recommended application circuit layout (not drawn to scale). note: ground plane is bottom layer of pcb and connects to top layer ground connections through vias
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 10 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 recommended ceramic output capacitors c out capacitor size i out dielectric part number capacitor vendor 1f 0805 0 to 100ma x5r c2012x5r1a105kt tdk 1f 0805 0 to 100ma x7r grm40x7r105k010 murata 1f 0805 0 to 100ma x7r lmk212bj105kg talyo-yuden 1f 1206 0 to 100ma x7r grm42-6x7r105k016 murata 1f 1206 0 to 100ma x7r emk316bj105kl talyo-yuden 1f 1206 0 to 100ma x5r tmk316bj105kl talyo-yuden 2.2f 0805 0 to 150ma x5r grm40x5r225k 6.3 murata 2.2f 0805 0 to 150ma x5r c2012x5r0j225kt tdk 2.2f 1206 0 to 150ma x5r emk316bj225ml talyo-yuden 4.7f 1206 0 to 150ma x5r grm42-6x5r475k010 murata 4.7f 1206 0 to 150ma x7r lmk316bj475ml talyo-yuden
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 11 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 output voltage vs temperature 3.015 3.01 3.005 3 2.995 2.99 output voltage (v) c out = 1f (c er am ic) v out = 3.0v 2.985 temperature (c) 0 50 100 150 -50 dropout characteristics v in (v) 3.4 3.3 3.2 3.1 3 v ou t (v) c out = 1f (ceramic) v out = 3.3v 3 3.2 3.4 3.6 i out = 0ma i out = 10ma i out = 50ma i out = 100ma i out = 150ma unless otherwise specified t a t=25c, v in =v out(nom) , + 1v, on/off pin tied to v in characterization at output currents above 50ma applies to ilc7081 typical performance characteristics d ropout vo lta ge vs tempera ture dropout voltage (mv) temperature (c) 250 200 150 100 50 0 ?40 85 25 v ou t = 3.0v i out = 150ma i out = 100ma i out = 50ma i out = 0ma 150 125 100 75 50 2 4 6 8 10 12 14 ground current vs input voltage v out = 3.0 v c out = 1f (ceramic) i ou t = 150ma i out = 100ma i ou t = 50ma i out = 10ma i out = 0ma v in (v) i gn d (a) 250 200 150 100 50 0 0 50 100 150 dropo ut vol tag e v s i ou t dropout voltage (mv) output current (ma) t a = ?40c t a = 85c t a = 25c v ou t = 3.0v line transient response 5s /di v v in (v) v out (v) 6 5 4 3.01 3.00 2.99 2.98 v in : tr/t f < 1 s v out = 3.0v c out = 2.2 f (ceramic) i out = 100 ma 0.47f (ceramic) 7081 only 0.47f (ceramic) 0.47f (ceramic) dropout characteristics line transient response
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 12 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 unless otherwise specified t a t=25c, v in =v out(nom) , + 1v, on/off pin tied to v in characterization at output currents above 50ma applies to ilc7081 typical performance characteristics 5s/div
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 13 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 unless otherwise specified t a t=25c, v in =v out(nom) , + 1v, on/off pin tied to v in characterization at output currents above 50ma applies to ilc7081 typical performance characteristics
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 14 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 unless otherwise specified t a t=25c, v in =v out(nom) , + 1v, on/off pin tied to v in characterization at output currents above 50ma applies to ilc7081 typical performance characteristics
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 15 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 output voltage (v) grade order information *package marking supplied as: 2.85 a ilc7080aim5-285 cfxx 3k units on tape and reel 3.0 a ilc7080aim5-30 caxx 3k units on tape and reel 3.3 a ilc7080aim5-33 cbxx 3k units on tape and reel 3.6 a ilc7080aim5-36 cdxx 3k units on tape and reel 5.0 a ilc7080aim5-50 ccxx 3k units on tape and reel adj a ilc7080aim5-adj cexx 3k units on tape and reel *note: first two characters identify the product and the last two characters identify the date code. output voltage (v) grade order information *package marking supplied as: 2.85 a ilc7081aim5 - 285 cvxx 3k units on tape and reel 3.0 a ilc7081aim5 - 30 cqxx 3k units on tape and reel 3.3 a ilc7081aim5 - 33 crxx 3k units on tape and reel 3.6 a ilc7081aim5 - 36 ctxx 3k units on tape and reel 4.7 a ilc7081aim5 - 47 cwxx 3k units on tape and reel 5.0 a ilc7081aim5 - 50 csxx 3k units on tape and reel adj a ilc7081aim5 - adj cuxx 3k units on tape and reel *note: first two characters identify the product and the last t wo characters identify the date code. sot-23 package markings ilc7080aim5-xx ilc7081aim5-xx
50/100ma sot-23 cmos rf ldo? regulators impala linear corporation 16 (408) 574-3939 www.impalalinear.com sept. 1998 ilc7080/81 1.1 devices sold by impala linear corporation are covered by the warranty and patent indemnification provisions appearing in its terms of sale only. impala linear corporation makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. impala linear corporation makes no warranty of merchantability or fitness for any purpose. impala linear corporation reserves the right to discontinue production and change specifications and prices at any time and without notice. this product is intended for use in normal commercial applications. applications requiring an extended temperature range, unusual environmental requirements, or high reliability applications, such as military and aerospace, are specif- ically not recommended without additional processing by impala linear corporation. impala linear corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in an impala linear corporation product. no other circuits, patents, licenses are implied. life support policy impala linear corporation?s products are not authorized for use as critical components in life support devices or systems. 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use pro- vided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. a critical component is any component of a life support device or system whose failure to perform can be reason- ably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. package outline dimensions dimensions shown in inches and (mm). 5-lead plastic surface mount (sot-23-5)

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