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general description the max8882/max8883 dual, low-noise, low-dropout linear regulators operate from a +2.5v to +6.5v input and deliver up to 160ma each of continuous current. both versions offer low output noise and low dropout of only 72mv at 80ma. designed with an internal p- channel mosfet pass transistor, the max8882/ max8883 maintain a low 165? supply current (both ldos on), independent of the load current and dropout voltage. other features include short-circuit protection and thermal-shutdown protection. the max8882 has a single shutdown input and provides an external refer- ence bypass pin to improve noise performance. the max8883 includes two independent logic-controlled shutdown inputs. the max8882/max8883 are both available in a miniature 6-pin sot23 package. ________________________applications ?/dsp core/io power cellular and pcs telephones pdas and palmtop computers notebook computers digital cameras hand-held instruments features two ldos in tiny sot23 up to 160ma output current (each ldo) 40v rms output noise (max8882) 72mv dropout at 80ma load low 165a operating supply current 62db psrr (greater than 56db to 100khz) independent low-power shutdown controls (max8883) thermal-overload and short-circuit protection output current limit max8882/max8883 dual, low-noise, low-dropout, 160ma linear regulators in sot23 ________________________________________________________________ maxim integrated products 1 gnd shdn bp 16 outa 5 in outb max8882 sot23-6 top view 2 34 pin configurations 19-1818; rev 1; 10/01 ordering information typical operating circuit part sh ut- do wn temp range pin- package max8882 eut_ _* single -40 c to +85 c 6 sot23-6 max8883 eut_ _* dual -40 c to +85 c 6 sot23-6 part v outa v outb top mark max8882eutjj 2.85 2.85 aanr max8882eutaq 3.3 2.5 aapw max8882euta5 3.3 1.8 aary max8882eutq5 2.5 1.8 aapx max8882eutgg 3.0 3.0 aazt max8883eutjj 2.85 2.85 aans max8883eutaq 3.3 2.5 aapy max8883euta5 3.3 1.8 aarz max8883eutq5 2.5 1.8 aapz max8883eutgg 3.0 3.0 aazu selector guide 2.2 f 2.2 f v in 2.5v to 6.5v v outa fixed (1.8v to 3.3v) outa outb (bp) max8882 max8883 gnd 2.2 f v outb fixed (1.8v to 3.3v) 0.01 f ( ) are for max8882 only. shdn_ in pin configurations continued at end of data sheet. *** other combinations between 1.8v and 3.3v are available in 100mv increments. contact factory for other versions. minimum order quantity is 50,000 units. for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. * see selector guide
max8882/max8883 dual, low-noise, low-dropout, 160ma linear regulators in sot23 2 _______________________________________________________________________________________ absolute maximum ratings electrical characteristics (v in = +3.6v, shdn = shdna = shdnb = in, t a = -40? to +85?, unless otherwise noted. typical values are at t a = +25?.) (note 1) stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. in, shdn , shdna , shdnb , bp to gnd...............-0.3v to +7.0v outa, outb to gnd ..................................-0.3v to (v in + 0.3v) output short-circuit duration.....................................continuous continuous power dissipation (t a = +70?) 6-pin sot23 (derate 8.7mw/? above +70?)............695mw operating temperature range ...........................-40? to +85? junction temperature ......................................................+150? storage temperature range .............................-65? to +150? lead temperature (soldering, 10s) .................................+300? parameter conditions min typ max units input voltage 2.5 6.5 v undervoltage lockout threshold v in _ rising, hysteresis 40mv typical 2.15 2.25 2.40 v t a = +25 c, i out _ = 1ma -1 1 i out _ = 1ma -2 2 output voltage accuracy i out _ = 100 a to 160ma -3 2 % maximum output current continuous 160 ma current limit 160 550 ma no load, v in = 6.5v 165 265 ground current i out _ = 80ma, both ldos 170 a shdn _ = gnd, t a = +25 c 0.01 1 shutdown supply current shdn _ = gnd 0.1 a v ih 1.6 shdn _ input threshold v il 0.4 v shdn _ = gnd or in, t a = +25 c 0 100 shdn _ input bias current shdn _ = gnd or in 0.05 na i out _ = 1ma 1 i out _ = 40ma 36 dropout voltage (notes 2, 3) i out _ = 80ma 72 144 mv line regulation v in = (v out _ + 0.4v or 2.5v) to + 6.5v, i out _ = 1ma -0.2 0 0.2 %/v 10hz to 100khz, c bp = 0.01 f, c out _ = 4.7 f, i out _ = 1ma max8882 40 output voltage noise 10hz to 100khz, c out _ = 4.7 f, i out _ = 10ma max8883 320 v rms
max8882/max8883 dual, low-noise, low-dropout, 160ma linear regulators in sot23 _______________________________________________________________________________________ 3 0 50 150 100 200 250 01 234 56 supply current vs. supply voltage max8882/3 toc01 supply voltage (v) supply current ( a) no load 80ma load, both outputs 0 40 20 80 60 120 100 140 180 160 200 02030 10 40 50 60 70 80 supply current vs. load current max8882/3 toc02 load current (ma) supply current ( a) both outputs loaded 0 60 40 20 80 100 120 140 160 180 200 -40 10 -15 35 60 85 supply current vs. temperature max8882/3 toc03 temperature ( c) supply current ( a) 80ma load, both outputs 0 15 30 45 60 75 90 020 10 30 40 50 60 70 80 dropout voltage vs. load current max8882/3 toc04 load current (ma) dropout voltage (mv) t a = +25 c t a = +85 c t a = -40 c 0 60 40 20 80 100 120 140 160 180 200 2.5 2.7 2.9 3.1 3.3 dropout vs. v out max8882/83 toc05 v out (v) dropout (mv) guaranteed maximum mean -1.0 -0.6 -0.8 -0.2 -0.4 0.2 0 0.4 0.8 0.6 1.0 -40 -10 5 -25 20 35 50 65 80 output voltage accuracy vs. temperature max8882/83 toc06 temperature ( c) output voltage (%) typical operating characteristics (v out _ = 2.85v, i out _ = 80ma, v in = +3.6v, c out _ = 2.2f, c bp = 0.01f, and c in = 2.2f, unless otherwise noted.) note 1: all units are 100% production tested at t a = +25 c. limits over the operating temperature range are guaranteed by design. note 2: the dropout voltage is defined as v in - v out when v in = v out (nom). specification only applies when v out 2.5v. note 3: see the typical operating characteristics for guaranteed specifications at voltages other than 3.3v. parameter conditions min typ max units 100hz, c bp = 0.01 f, c out _ = 4.7 f max8882 62 output voltage ac psrr 100hz, c out _ = 4.7 f max8883 60 db thermal shutdown temperature 160 c thermal shutdown hysteresis 10 c electrical characteristics (continued) (v in = +3.6v, shdn = shdna = shdnb = in, t a = -40 c to +85 c, unless otherwise noted. typical values are at t a = +25 c.) (note 1)
max8882/max8883 dual, low-noise, low-dropout, 160ma linear regulators in sot23 4 _______________________________________________________________________________________ typical operating characteristics (continued) (v out _ = 2.85v, i out _ = 80ma, v in = +3.6v, c out _ = 2.2f, c bp = 0.01f, and c in = 2.2f, unless otherwise noted.) max8882 output noise (10hz to 100khz) max8882/3 toc10 1ms/div 500 v/div (ac-coupled) v out _ line transient max8882/3 toc11 50 s/div v in v out _ 4.5v 3.5v 1v/div 20mv/div (ac-coupled) load transient (v in = 3.35v, i load = 0 to 80ma) max8882/3 toc12 10 s/div v out _ i load 0 20mv/div (ac-coupled) 50ma/div 0 20 10 40 30 60 50 70 0.01 1 0.1 10 100 1000 psrr vs. frequency max8882/3 toc07 frequency (khz) psrr (db) 100 ? load 0.01 0.1 1 1000 channel-to-channel isolation vs. frequency max8882/3 toc08 frequency (khz) channel-to-channel isolation (db) 120 0 20 40 60 80 100 10 100 100 ? load thermal coupling capacitve coupling 10000 10 0.01 10 1000 output noise spectral density vs. frequency 100 1000 max8882/3 toc09 noise density (nv/ hz) 0.1 1 100
max8882/max8883 dual, low-noise, low-dropout, 160ma linear regulators in sot23 _______________________________________________________________________________________ 5 pin description load transient near dropout max8882/3 toc13 10 s/div 20mv/div 0 50 a/div v out i load v in = v out + 0.1v shutdown response max8882/3 toc14 1ms/div 20v/div output voltage shutdown voltage 0 0 1v/div r load = 100 ? pin max8882 max8883 name function 1 1 outb regulator b output. sources up to 160ma continuous current. bypass with a 2.2 f (<0.5 ? typ esr) capacitor to gnd (see the capacitor selection and regulator stability section). 2 2 gnd ground. this pin also functions as a heatsink. solder to a large pad or the circuit-board ground plane to maximize thermal dissipation. 3 bp reference noise bypass. bypass with a low-leakage 0.01 f ceramic capacitor for reduced noise at both outputs. 3 shdna shutdown a input. a logic low shuts down regulator a. if shdna and shdnb are both low, both regulators and the reference turn off, and supply current is reduced to 10na. if either shdna or shdnb is a logic high, the reference is on. connect to in for normal operation. 4 shdnb shutdown b input. a logic low shuts down regulator b. if shdna and shdnb are both low, both regulators and the reference turn off, and supply current is reduced to 10na. if either shdna or shdnb is a logic high, the reference is on. connect to in for normal operation. 4 shdn shutdown input. a logic low shuts down both regulators and the reference, reducing the entire supply current to 10na. connect to in for normal operation. 55in regulator input. supply voltage can range from +2.5v to +6.5v. this input also supplies the on-chip reference. bypass with 2.2 f to gnd (see the capacitor selection and regulator stability section). 6 6 outa regulator a output. sources up to 160ma continuous current. bypass with a 2.2 f (<0.5 ? typ esr) capacitor to gnd (see the capacitor selection and regulator stability section). typical operating characteristics (continued) (v out _ = 2.85v, i out _ = 80ma, v in = +3.6v, c out _ = 2.2f, c bp = 0.01f, and c in = 2.2f, unless otherwise noted.)
max8882/max8883 detailed description the max8882/max8883 are low-noise, low-dropout, low-quiescent-current linear regulators designed primar- ily for battery-powered applications. these parts are available with preset output voltages ranging from 1.8v to 3.3v, and the parts can supply loads up to 160ma. shutdown max8882 the max8882 has a single shutdown control input ( shdn ). drive shdn low to shut down both outputs, reducing supply current to 10na. connect shdn to a logic-high, or in, for normal operation. max8883 the max8883 has independent shutdown control inputs ( shdna and shdnb ). drive shdna low to shut down outa. drive shdnb low to shut down outb. drive both shdna and shdnb low to shut down the entire chip, reducing supply current to 10na. connect both shdna and shdnb to a logic-high, or in, for nor- mal operation. internal p-channel pass transistor the max8882/max8883 feature two 1 ? p-channel mosfet pass transistors. a p-channel mosfet pro- vides several advantages over similar designs using pnp pass transistors, including longer battery life. it requires no base drive, which reduces quiescent cur- rent significantly. pnp-based regulators waste consid- erable current in dropout when the pass transistor saturates, and they also use high base-drive currents under large loads. the max8882/max8883 do not suf- fer from these problems and only consume 165a of quiescent current whether in dropout, light-load, or heavy-load applications (see the typical operating characteristics ). while a pnp-based regulator has dropout voltage that is independent of the load, a p- channel mosfet s dropout voltage is proportional to load current, providing for low dropout voltage at heavy loads and extremely low dropout voltage at lighter loads. current limit the max8882/max8883 contain two independent cur- rent limiters, one for each regulator, which monitor and control the pass transistor s gate voltage, limiting the guaranteed maximum output current to 160ma mini- mum. the output can be shorted to ground for an indef- inite time without damaging the part. thermal-overload protection thermal-overload protection limits total power dissipa- tion in the max8882/max8883. when the junction tem- perature exceeds t j = +160 c, the thermal sensor sig- nals the shutdown logic, turning off the pass transistor and allowing the ic to cool. the thermal sensor will turn the pass transistor on again after the ic s junction tem- perature cools by 10 c, resulting in a pulsed output during continuous thermal-overload conditions. thermal-overload protection is designed to protect the max8882/max8883 in the event of fault conditions. for continual operation, do not exceed the absolute maxi- mum junction-temperature rating of t j = +150 c. operating region and power dissipation the max8882/max8883 s maximum power dissipation depends on the thermal resistance of the case and cir- cuit board, the temperature difference between the die junction and ambient air, and the rate of air flow. the power dissipation across the device is p = i out (v in - v out ) (figure 1). the maximum power dissipation is: p max = (t j - t a ) / (t jb + t ba ) where t j - t a is the temperature difference between the max8882/max8883 die junction and the surround- ing air, t jb (or t jc ) is the thermal resistance of the package, and t ba is the thermal resistance through the printed circuit board, copper traces, and other materi- als to the surrounding air. the gnd pin of the max8882/max8883 performs the dual functions of providing an electrical connection to the ground and channeling heat away. connect the gnd pin to ground using a large pad or ground plane. dual, low-noise, low-dropout, 160ma linear regulators in sot23 6 _______________________________________________________________________________________ figure 1. max8882/max8883 safe operating region 0 40 20 100 80 60 160 140 120 180 02 1 345 safe operating region max8882/3 fig01 v in - v out _ (v) i out _ (ma) +85 c +70 c
low-noise operation (max8882) an external 0.01f bypass capacitor at bp, in conjunc- tion with an internal resistor, creates a lowpass filter. the max8882 exhibits 40v rms of output voltage noise with c bp = 0.01f and c out _ = 4.7f. (see the output noise spectral density graph in the typical operating characteristics .) applications information capacitor selection and regulator stability use a 2.2f capacitor on the max8882/max8883 input and a 2.2f capacitor on the outputs. larger input capacitor values and lower esrs provide better supply- noise rejection and line-transient response. to reduce noise, improve load transients, and for loads up to 160ma, use larger output capacitors (up to 10f). for stable operation over the full temperature range and with load currents up to 80ma, use 2.2f. note that some ceramic dielectrics exhibit large capac- itance and esr variation with temperature. with dielectrics such as z5u and y5v, it may be necessary to use 4.7f or more to ensure stability at temperatures below -10 c. with x7r or x5r dielectrics, 2.2f is suffi- cient at all operating temperatures. these regulators are optimized for ceramic capacitors, and tantalum capacitors are not recommended. use a 0.01f bypass capacitor at bp (max8882) for low output voltage noise. increasing the capacitance will slightly decrease the output noise, but increase the startup time. (see the shutdown response graph in the typical operating characteristics .) psrr and operation from sources other than batteries the max8882/max8883 are designed to deliver low dropout voltages and low quiescent currents in battery- powered systems. power-supply rejection is 62db at low frequencies and rolls off above 100khz. (see the psrr vs. frequency graph in the typical operating characteristics. ) when operating from sources other than batteries, improved supply-noise rejection and transient response can be achieved by increasing the values of the input and output bypass capacitors and through passive fil- tering techniques. dropout voltage a regulator s minimum input-output voltage differential (or dropout voltage) determines the lowest usable sup- ply voltage. in battery-powered systems, this deter- mines the useful end-of-life battery voltage. because the max8882/max8883 use a p-channel mosfet pass transistor, their dropout voltage is a function of drain-to- source on-resistance (r ds(on) ) multiplied by the load current (see the typical operating characteristics ). chip information transistor count: 493 process: bicmos max8882/max8883 dual, low-noise, low-dropout, 160ma linear regulators in sot23 _______________________________________________________________________________________ 7 top view gnd shdnb shdna 16 outa 5 in outb max8883 sot23-6 2 34 pin configurations (continued)
max8882/max8883 dual, low-noise, low-dropout, 160ma linear regulators in sot23 maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 8 _____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ? 2001 maxim integrated products printed usa is a registered trademark of maxim integrated products. package information 6lsot.eps
e nglish ? ???? ? ??? ? ??? what's ne w p roducts solutions de sign ap p note s sup p ort buy comp any me mbe rs max8882 part number table notes: see the max8882 quickview data sheet for further information on this product family or download the max8882 full data sheet (pdf, 252kb). 1. other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales . 2. didn't find what you need? ask our applications engineers. expert assistance in finding parts, usually within one business day. 3. part number suffixes: t or t&r = tape and reel; + = rohs/lead-free; # = rohs/lead-exempt. more: see full data sheet or part naming c onventions . 4. * some packages have variations, listed on the drawing. "pkgc ode/variation" tells which variation the product uses. 5. part number free sample buy direct package: type pins size drawing code/var * temp rohs/lead-free? materials analysis max8882eut -40c to +85c rohs/lead-free: no max8882eut-t -40c to +85c rohs/lead-free: no max8882eutq5 sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s-3 * -40c to +85c rohs/lead-free: no materials analysis max8882euta5 sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s-3 * -40c to +85c rohs/lead-free: no materials analysis max8882eutaq+ sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s+3 * -40c to +85c rohs/lead-free: yes materials analysis max8882eutaq sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s-3 * -40c to +85c rohs/lead-free: no materials analysis max8882eutgg+ sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s+3 * -40c to +85c rohs/lead-free: yes materials analysis
max8882eutgg sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s-3 * -40c to +85c rohs/lead-free: no materials analysis max8882eutj5+ sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s+3 * -40c to +85c rohs/lead-free: yes materials analysis max8882eutj5 sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s-3 * -40c to +85c rohs/lead-free: no materials analysis max8882eutjj+ sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s+3 * -40c to +85c rohs/lead-free: yes materials analysis max8882eutjj sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s-3 * -40c to +85c rohs/lead-free: no materials analysis max8882eutq5+ sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s+3 * -40c to +85c rohs/lead-free: yes materials analysis max8882euta5+ sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s+3 * -40c to +85c rohs/lead-free: yes materials analysis max8882euta5-t sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s-3 * -40c to +85c rohs/lead-free: no materials analysis max8882eutgg-t sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s-3 * -40c to +85c rohs/lead-free: no materials analysis max8882eutj5-t -40c to +85c rohs/lead-free: no max8882eutjj-t sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s-3 * -40c to +85c rohs/lead-free: no materials analysis MAX8882EUTQ5-T sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s-3 * -40c to +85c rohs/lead-free: no materials analysis max8882eutq5+t sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s+3 * -40c to +85c rohs/lead-free: yes materials analysis max8882euta5+t sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s+3 * -40c to +85c rohs/lead-free: yes materials analysis max8882eutaq+t -40c to +85c rohs/lead-free: yes max8882eutgg+t sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s+3 * -40c to +85c rohs/lead-free: yes materials analysis
max8882eutj5+t -40c to +85c rohs/lead-free: yes max8882eutjj+t sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s+3 * -40c to +85c rohs/lead-free: yes materials analysis max8882eutaq-t sot-23;6 pin; dwg: 21-0058i (pdf) use pkgcode/variation: u6s-3 * -40c to +85c rohs/lead-free: no materials analysis didn't find what you need? c ontac t us: send us an email c opyright 2 0 0 7 by m axim i ntegrated p roduc ts , dallas semic onduc tor ? legal n otic es ? p rivac y p olic y

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