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a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 1 description the ace5019a series are a group of positive voltage regulators manufactured by cmos technologies with low power consumption and low dropout voltage, which provide large output currents even when the difference of the input - output voltage is sm all. the ace5019a series can deliver 300ma output current and allow an input voltage as high as 18v. the series are very suitable for the battery - powered equipments, such as rf applications and other systems requiring a quiet voltage source. features ? low quiescent current: 2a ? operating voltage range: 2.5v 18v ? output current: 3 5 0ma ? low dropout voltage 160mv@100ma(v out =3.3v) ? output voltage: 1.2~ 5.0v ? high accuracy: 2 /1 typ . ? high power supply rejection ratio: 65db@1khz ? low output noise: ? 27xv out v rms (1 0hz~100khz) ? excellent line and load transient response ? built - in current limiter, short - circuit protection application ? cordless phones ? radio control systems ? laptop, palmtops and pdas ? single - lens reflex dsc ? pc peripherals with memory ? wireless communication equipments ? portable audio video equipments ? car navigation systems ? lan cards ? ultra low power microcontroller
a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 2 absolute maximum ratings (1) unless otherwise specified, t a =25c p arameter s ymbol m ax u nit input voltage (2) v in - 0.3~24 v output voltage (2) v out - 0.3~10 v ce pin voltage v ce - 0.3~24 v output current i out 600 ma power dissipation sot - 23 - 3 pd 0.4 w sot - 23 - 5 0.4 sot - 89 - 3 0.6 operating junction temperature range (3) t opr - 4 0~125 o c storage temperature t stg - 4 0~125 o c lead temperat ure(soldering, 10 sec) t solder 260 o c esd rating (4) human body model - (hbm) 8 kv machine model - (mm) 400 v note: (1) stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and fu nctional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. exposure to absolute - maximum - rated conditions for extended periods my affect device reliability. (2) all voltages ar e with respect to network ground terminal. (3) the ace5019a includes over temperature protection that is intended to protect the device during momentary overload. junction temperature will exceed 125c when over temperature protection is active. continuous ope ration above the specified maximum operating junction temperature may impair device reliability. (4) esd testing is performed according to the respective jesd22 jedec standard. the human body model is a 100 pf capacitor discharged through a 1.5k? resistor into each pin. the machine model is a 200pf capacitor discharged directly into each pin. recommended operating conditions p arameter min. m ax. u nits supply voltage at v in 2.5 18 v operating junction temperature range, t j - 40 125 c operating free air temper ature range, t a - 40 85 c
a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 3 packaging type sot - 23- 3 sot - 23- 5 sot - 89- 3 sot - 23 - 3 sot - 23 - 5 sot - 89 - 3 pin name function a b c a b c a b c 1 3 3 2 1 2 1 2 2 v ss ground 2 2 1 5 3 5 3 1 3 v out output 3 1 2 1 2 1 2 3 1 v in power input 3 ce chip enable pin 3/4 4/5 4 nc no connection ordering information ace5019a x xx xx + h bm a sot - 23- 3 a bmb sot - 23- 3b bmc sot - 23- 3c bn a sot - 23- 5 a bnb sot - 23- 5b bnc sot - 23- 5c am a sot - 89- 3a amb sot - 89- 3b amc sot - 89 - 3c output voltage 1. 2 / 1.5v ?../ 5.0 v pb - free halogen - free a 1% b 2%
a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 4 block diagram typical application circuit
a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 5 electric al characteristics ( v i n =v ou t +1 v , c i n =c ou t = 1f t a =2 5 o c , unless othe r w ise specified) parameter symbol conditions min typ (1) max units input voltage v in 2.5 18 v output voltage range v out 1.2 5 v dc output accuracy i out =1ma - 2 2 % - 1 1 % dropo ut voltage v dif (2) i out =100ma, v out =3.3v 160 mv supply current i ss i out =0 a 2 5 a line regulation ? v out v out ?? v in i out =10ma v out +1vv in 1 8v 0.0 1 0.3 %/v load regulation ? v out v in = v out + 1 v, 1mai out 100ma 10 mv temperature coefficient ? v out v out ? ? t a i out =10ma, - 40c a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 6 typical performance characteristics
a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 7
a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 8 application information selection of input/ output capacitors in general, all the cap acitors need to be low leakage. any leakage the capacitors have will reduce efficiency, increase the quiescent current. a recent trend in the design of portable devices has been to use ceramic capacitors to filter dc - dc converter inputs. ceramic capacitors are often chosen because of their small size, low equivalent series resistance (esr) and high rms current capability. also, recently, designers have been looking to ceramic capacitors due to shortages of tantalum capacitors. unfortunately, using ceramic c apacitors for input filtering can cause problems. applying a voltage step to a ceramic capacitor causes a large current surge that stores energy in the inductances of the power leads. a large voltage spike is created when the stored energy is transferred f rom these inductances into the ceramic capacitor. these voltage spikes can easily be twice the amplitude of the input voltage step. (see ?ceramic input capacitors can cause overvoltage transients? ?? linear technology application note 88, march 2001) many ty pes of capacitors can be used for input bypassing; however, caution must be exercised when using multilayer ceramic capacitors (mlcc). because of the self - resonant and high q characteristics of some types of ceramic capacitors, high voltage transients can be generated under some start - up conditions, such as connecting the ldo input to a live power source. adding a 3? resistor in series with an x5r ceramic capacitor will minimize start - up voltage transients. the ldo also requires an output capacitor for loop stability. connect a 1f tantalum capacitor from out to gnd close to the pins. for improved transient response, this output capacitor may be ceramic.
a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 9 packing information sot - 23- 3
a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 10 packing information sot - 23- 5
a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 11 packing infor mation sot - 89- 3
a ce5 019 a 18v low current consumption 3 5 0ma cmos voltage regulator ver 1.1 12 notes ace does not assume any responsibility for use as critical components in life support devices or systems without the express written approval of the president and genera l counsel of ace electronics co., ltd. as sued herein: 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 shoes failure to perform when properly used in acc ordance with instructions for use provided 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 reasonably expect ed to cause the failure of the life support device or system, or to affect its safety or effectiveness. ace technology co., ltd. http://www.ace - ele.com/

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