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eup7180 ds7180 ver1.2 oct. 2007 1 1a quiescent current, 1 50ma ldo regulator description the eup7180 is cmos-based voltage regulator ic with extremely low supply current which is typically 1a. dropout voltage is also very low. the eup7180 has output short circuit and over current protection features. the eup7180 is available in 1.5v, 2.3v, 2.5v and 3.0v versions. feature z low ground current at 1a z low dropout voltage of 230mv at output current 100ma z guaranteed 150ma output current z stable with low esr ceramic capacitors z current-limiting z sot23 3-pin and sot89 package z rohs compliant and 100% lead (pb)-free applications z stable voltage reference. z power source for electrical appliances such as cameras, vcrs and camcorders. z power source for battery-powered equipment block diagram figure 1.
eup7180 ds7180 ver1.2 oct. 2007 2 typical application circuit figure2. fixed-voltage ldo regulator figure 2. pin configurations package type pin configurations package type pin configurations sot23-3 sot89-3 pin description pin sot23-3 sot89-3 description v in 3 2 input voltage of the ldo gnd 1 1 common ground v out 2 3 output voltage of the ldo
eup7180 ds7180 ver1.2 oct. 2007 3 ordering information order number package type marking operating junction temperature range eup7180-15vir1 sot23-3 kc xxxx -40c to 150c eup7180-23vir1 sot23-3 ks xxxx -40c to 150c EUP7180-25VIR1 sot23-3 kb xxxx -40c to 150c eup7180-30vir1 sot23-3 kg xxxx -40c to 150c eup7180-23cir1 sot89-3 xxxxx p7180s -40c to 150c eup7180-25cir1 sot89-3 xxxxx p7180b -40c to 150c eup7180-30cir1 sot89-3 xxxxx p7180g -40c to 150c eup7180 - ?? ?? ?? ?? ?? ?? lead free code 1: lead free 0: lead packing r: tape & reel operating temperature range i: industry standard package type v: sot-23 c: sot-89 output voltage 15: 1.5v 23: 2.3v 25: 2.5v 30: 3.0v
eup7180 ds7180 ver1.2 oct. 2007 4 absolute maximum ratings ? input voltage ------------------------------------------------------------------------------ -0.3v to 6v ? operating junction temperature range ----------------------------------------------- -40c to 150c ? storage temperature range ------------------------------------------------------------- -65c to 150c ? power dissipation ,p d @ t a =25c sot-23 --------------------------------------------------------------------------------------- 0.4w sot-89 --------------------------------------------------------------------------------------- 0.57w ? package thermal resistance sot-23, c ja --------------------------------------------------------------------------------- 250c/w sot-89, c ja --------------------------------------------------------------------------------- 175c/w ? esd rating human body mode ------------------------------------------------------------------------- 2kv electrical characteristics v in =v out +1v,c in =1uf,c out =1uf(ceramic),t a =25 j ,unless otherwise specified. eup7180 symbol parameter conditions min typ max. unit input voltage 2.3 5.5 v ? v out output voltage accuracy i out =1ma -3 3 % i outmax output current 150 ma v ldr load regulation 1ma 10 25 mv v drop1 i out =30ma 70 140 v drop2 dropout voltage (note1) i out =100ma 230 400 mv no load 1 1.7 i q ground current i out =150ma 2.5 a v lnr line regulation v in =(v out +1v) to 5.5v, i out =1ma 0.06 0.2 %/v tc out v out temp. coeff. i out =1ma,t a =-40 j to 85 j 70 ppm/ j ishort short circuit current v out =gnd 100 ma note 1: dropout is defined as v in -v out when v out is 2% below the value of v out for v in =v out +1v. this characteristics is suitable for v out 2.3v.
eup7180 ds7180 ver1.2 oct. 2007 5 typical operating characteristics 0 25 50 75 100 125 150 2.00 2.05 2.10 2.15 2.20 2.25 2.30 2.35 2.40 vin=3.3v output voltage vs. output current output voltage (v) output current iout(ma) 0 50 100 150 200 250 300 350 400 0.0 0.5 1.0 1.5 2.0 2.5 folded back current limit vin=3.3v output voltage (v) output current (ma) 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 2.00 2.05 2.10 2.15 2.20 2.25 2.30 2.35 2.40 2.45 output voltage vs. input voltage iout=1ma, 40ma, 100ma output voltage (v) input voltage (v) 0 30 60 90 120 150 0 50 100 150 200 250 300 dropout voltage vs. output current dropout voltage (mv) output current (ma) 0 20406080100 2.00 2.05 2.10 2.15 2.20 2.25 2.30 2.35 2.40 ta=-40 j 25 j 85 j vin=3.3v output voltage vs. output current output voltage (v) output current (ma) 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.250 2.275 2.300 2.325 2.350 output voltage vs. input voltage iout=1ma 40ma 100ma output voltage (v) input voltage (v)
eup7180 ds7180 ver1.2 oct. 2007 6 0123456 0.0 0.5 1.0 1.5 2.0 supply current vs. input voltage no load supply current (ua) input voltage (v) -40-200 20406080100 0.0 0.5 1.0 1.5 2.0 supply current vs. temperature vin=5v, no load supply current (ua) ambient temperature ( ) j -50 -25 0 25 50 75 100 2.20 2.22 2.24 2.26 2.28 2.30 2.32 2.34 2.36 2.38 2.40 iout=40ma iout=1ma output voltage vs. temperature ambient temperature ( ) j output voltage (v)
eup7180 ds7180 ver1.2 oct. 2007 7
eup7180 ds7180 ver1.2 oct. 2007 8
eup7180 ds7180 ver1.2 oct. 2007 9 application information external capacitors like any low-dropout regulator, the eup7180 requires external capacitors for regulator stability. the eup7180 is specifically designed for portable applications requiring minimum board space and smallest components. these capacitors must be correctly selected for good performance. input capacitor a minimum input capacitance of 1f is required between the eup7180 input pin and ground (the amount of the capacitance may be increased without limit).this capacitor must be located a distance of not more than 1cm from the input pin and returned to a clean analog ground. any good quality ceramic, tantalum, or film capacitor may be used at the input. if a tantalum capacitor is used at the input, it must be guaranteed by the manufacturer to have a surge current rating sufficient for the application. output capacitance the eup7180 is specifically designed to employ ceramic output capacitors as low as 1f. ceramic capacitors below 10f offer significant cost and space savings, along with high frequency noi se filtering. higher values and other types and of capacitor may be used, but their equivalent series resistance (esr) should be maintained below 0.5 ? . ceramic capacitor of the value required by the eup7180 are available in the following dielectric types: z5u, y5v, x5r, and x7r. the z5u and y5v types exhibit a 50% or more drop in capacitance value as their temperature increase from 25c, an important consideration. the x5r generally maintain their capacitance value within 20%. the x7r type are desirable for their tighter tolerance of 10% over temperature.
eup7180 ds7180 ver1.2 oct. 2007 10 packaging information sot23-3 millimeters inches symbol s min. max. min. max. a - 1.30 - 0.052 a1 0.00 0.15 0.000 0.006 d 2.90 0.114 e1 1.60 0.063 e 2.60 3.00 0.102 0.118 l 0.30 0.60 0.012 0.024 b 0.30 0.50 0.012 0.020 e 0.95 0.037
eup7180 ds7180 ver1.2 oct. 2007 11 sot89-3 millimeters inches symbol s min. max. min. max. a 1.40 1.60 0.055 0.063 l 0.89 1.20 0.035 0.047 b1 0.36 0.48 0.014 0.019 b 0.44 0.56 0.017 0.022 c 0.35 0.44 0.014 0.017 d 4.40 4.60 0.173 0.181 d1 1.35 1.83 0.053 0.072 h 3.94 4.25 0.155 0.167 e 2.29 2.60 0.090 0.102 e 1.50 0.059

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