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rt9013 preliminary 1 ds9013-05 august 2007 www.richtek.com pin configurations applications cdma/gsm cellular handsets portable information appliances laptop, palmtops, notebook computers hand-held instruments mini pci & pci-express cards pcmcia & new cards 500ma, low dropout, low noise ultra-fast without bypass capacitor cmos ldo regulator ordering information marking information for marking information, contact our sales representative directly or through a richtek distributor located in your area, otherwise visit our website for detail. general description the rt9013 is a high-performance, 500ma ldo regulator, offering extremely high psrr and ultra-low dropout. ideal for portable rf and wireless applications with demanding performance and space requirements. the rt9013 quiescent current as low as 25 a, further prolonging the battery life. the rt9013 also works with low-esr ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand- held wireless devices. the rt9013 consumes typical 0.7 a in shutdown mode and has fast turn-on time less than 40 s. the other features include ultra-low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. available in the sot-23-5, sc-70-5 and wdfn-6l 2x2 package. (top view) wdfn-6l 2x2 features wide operating voltage ranges : 2.2v to 5.5v low dropout : 250mv at 500ma ultra-low-noise for rf application ultra-fast response in line/load transient current limiting protection thermal shutdown protection high power supply rejection ratio output only 1 f capacitor required for stability ttl-logic-controlled shutdown input rohs compliant and 100% lead (pb)-free sot-23-5 / sc-70-5 rt9013 package type b : sot-23-5 u5 : sc-70-5 qw : wdfn-6l 2x2 (w-type) operating temperature range p : pb free with commercial standard g : green (halogen free with commer- cial standard) fixed output voltage 12 : 1.2v 13 : 1.3v 15 : 1.5v 16 : 1.6v : 32 : 3.2v 33 : 3.3v 1b : 1.25v 1h : 1.85v 2h : 2.85v - note : richtek pb-free and green products are : ` rohs compliant and compatible with the current require- ments of ipc/jedec j-std-020. ` suitable for use in snpb or pb-free soldering processes. ` 100% matte tin (sn) plating. en gnd nc nc vout vin 5 4 1 2 3 6 gnd 7 2 3 5 4 1 vout gnd nc vin en
rt9013 preliminary 2 ds9013-05 august 2007 www.richtek.com typical application circuit functional pin description pin number rt9013- pb rt9013- pu5 rt9013 - pqw pin name pin function 5 4 vout regulator output. 4 5, 6 nc no internal connection. 2 2, exposed pad (7) gnd common ground. the exposed pad must be soldered to a large pcb and connected to gnd for maximum power dissipation. 3 1 en enable input logic, active high. when the en goes to a logic low, the device will be shutdown mode. 1 3 vin supply input. function block diagram vin gnd vout rt9013 c out 1uf 1uf nc en c in v in v out chip enable r pull_down 100k + - por otp en vin vout gnd mos driver current limit v ref
rt9013 preliminary 3 ds9013-05 august 2007 www.richtek.com absolute maximum ratings (note 1) supply input v oltage ------------------------------------------------------------------------------------------------------ 6v en input voltage ----------------------------------------------------------------------------------------------------------- 6v power dissipation, p d @ t a = 25 c sot-23-5 -------------------------------------------------------------------------------------------------------------------- 0.4w sc-70-5 ---------------------------------------------------------------------------------------------------------------------- 0.3w wdfn-6l 2x2 -------------------------------------------------------------------------------------------------------------- 0.606w package thermal resistance (note 4) sot-23-5, ja --------------------------------------------------------------------------------------------------------------- 250 c/w sc-70-5, ja ---------------------------------------------------------------------------------------------------------------- 333 c/w wdfn-6l 2x2, ja --------------------------------------------------------------------------------------------------------- 165 c/w wdfn-6l 2x2, jc --------------------------------------------------------------------------------------------------------- 20 c/w lead temperature (soldering, 10 sec.) ------------------------------------------------------------------------------- 260 c junction temperature ----------------------------------------------------------------------------------------------------- 125 c storage temperature range -------------------------------------------------------------------------------------------- ? 65 c to 150 c esd susceptibility (note 2) hbm -------------------------------------------------------------------------------------------------------------------------- 2k v mm ---------------------------------------------------------------------------------------------------------------------------- 2 00v recommended operating conditions (note 3) supply input v oltage ------------------------------------------------------------------------------------------------------ 2.2v to 5.5v junction temperature range -------------------------------------------------------------------------------------------- ? 40 c to 125 c ambient temperature range -------------------------------------------------------------------------------------------- ? 40 c to 85 c electrical characteristics parameter symbol test conditions min typ max units input voltage range v in 2.2 -- 5.5 v output noise voltage v on v out = 1.5v, c out = 1 f, i out = 0ma -- 30 -- v rms output voltage accuracy (fixed output voltage) v out i out = 10ma ? 2 0 +2 % quiescent current (note 5) i q v en = 5v, i out = 0ma -- 25 50 a standby current i stby v en = 0v -- 0.7 1.5 a r load = 0 , 2.2v v in < 2.6v 0.4 0.5 0.85 a current limit i lim r load = 0 , 2.7v v in 5.5v 0.5 0.6 0.85 a i out = 400ma, 2.2v v in < 2.7v -- 160 320 dropout voltage (note 6) v drop i out = 500ma, 2.7v v in 5.5v -- 250 400 mv 1ma < i out < 400ma 2.2v v in < 2.7v -- -- 0.6 load regulation (note 7) (fixed output voltage) v load 1ma < i out < 500ma 2.7v v in 5.5v -- -- 1 % (v in = v out + 0.5v, v en = v in , c in = c out = 1 f (ceramic), t a = 25 c unless otherwise specified) to be continued
rt9013 preliminary 4 ds9013-05 august 2007 www.richtek.com note 1. stresses listed as the above ? absolute maximum ratings ? may cause permanent damage to the device. these are for stress ratings. functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. note 2. devices are esd sensitive. handling precaution recommended. note 3. the device is not guaranteed to function outside its operating conditions. note 4. ja is measured in the natural convection at t a = 25 c on a low effective thermal conductivity test board of jedec 51-3 thermal measurement standard. the case position of jc is on the exposed pad for the wdfn-6l 2x2 packages. note 5. quiescent, or ground current, is the difference between input and output currents. it is defined by i q = i in - i out under no load condition (i out = 0ma). the total current drawn from the supply is the sum of the load current plus the ground pin current. note 6. the dropout voltage is defined as v in -v out , which is measured when v out is v out(normal) - 100mv. note 7. regulation is measured at constant junction temperature by using a 2ms current pulse. devices are tested for load regulation in the load range from 10ma to 500ma. parameter symbol test conditions min typ max units logic-low voltage v il 0 -- 0.6 en threshold logic-high voltage v ih 1.6 -- 5.5 v enable pin current i en -- 0.1 1 a power supply rejection rate f = 100khz psrr i out = 300ma -- -40 -- db line regulation v line v in = (v out +0.5) to 5.5v, i out = 1ma -- 0.01 0.2 %/v thermal shutdown temperature t sd -- 170 -- thermal shutdown hysteresis t sd -- 30 -- c
rt9013 preliminary 5 ds9013-05 august 2007 www.richtek.com typical operating characteristics output voltage vs. temperature 1.40 1.42 1.44 1.46 1.48 1.50 1.52 1.54 1.56 1.58 1.60 -50 -25 0 25 50 75 100 125 temperature output voltage (v) v in = 2.5v ( c) (c in = c out = 1 /x7r, unless otherwise specified) dropout voltage vs. load current 0 50 100 150 200 250 300 350 0 50 100 150 200 250 300 350 400 450 500 load current (ma) dropout voltage (mv) rt9013-33pqw t j = 125 c t j = 25 c t j = -40 c v in = 2.5v, i load = 75ma start up time (5 s/div) en pin voltage (v) output voltage (v) 4 2 0 1.0 0.5 0 rt9013-15pqw v in = 2.5v, i load = 50ma en pin shutdown response en pin voltage (v) time (100 s/div) output voltage (v) 4 2 0 2 1 0 rt9013-15pqw quiescent current vs. temperature 10 12 14 16 18 20 22 24 26 28 30 -50 -25 0 25 50 75 100 125 temperature quiescent current (ua) v in = 2.5v ( c) dropout voltage vs. load current 0 50 100 150 200 250 300 350 0 50 100 150 200 250 300 350 400 450 500 load current (ma) dropout voltage (mv) rt9013-25pqw t j = 125 c t j = 25 c t j = -40 c
rt9013 preliminary 6 ds9013-05 august 2007 www.richtek.com v in = 2.5v, i load = 10ma to 100ma load transient response load current (ma) time (100 s/div) output voltage deviation (mv) 100 50 0 50 0 -50 rt9013-15pqw v in = 2.5v, i load = 10ma to 300ma load transient response load current (ma) time (100 s/div) output voltage deviation (mv) 400 200 0 50 0 -50 rt9013-15pqw v in = 2.6v to 3.6v, i load = 10ma line transient response input voltage deviation (v) time (100 s/div) output voltage deviation (mv) 3.6 2.6 20 0 -20 rt9013-15pqw line transient response input voltage deviation (v) time (100 s/div) output voltage deviation (mv) 3.6 2.6 20 0 -20 v in = 2.6v to 3.6v, i load = 100ma rt9013-15pqw v in = 3.0v (by battery), i load = 10ma noise time (10ms/div) noise ( v/d iv) 300 200 100 0 -100 -200 -300 rt9013-15pqw v in = 3.0v (by battery), no load noise time (10ms/div) noise ( v/d iv) 300 200 100 0 -100 -200 -300 rt9013-15pqw
rt9013 preliminary 7 ds9013-05 august 2007 www.richtek.com psrr -70 -60 -50 -40 -30 -20 -10 0 10 20 10 100 1000 10000 100000 1000000 frequency (hz) psrr(db) i load = 100ma i load = 300ma i load = 10ma v in = 2.5v to 2.6v v in = 3.0v (by battery), i load = 300ma noise time (10ms/div) noise ( v/d iv) 300 200 100 0 -100 -200 -300 rt9013-15pqw
rt9013 preliminary 8 ds9013-05 august 2007 www.richtek.com applications information like any low-dropout regulator, the external capacitors used with the rt9013 must be carefully selected for regulator stability and performance. using a capacitor whose value is > 1 f on the rt9013 input and the amount of capacitance can be increased without limit. the input capacitor must be located a distance of not more than 0.5 inch from the input pin of the ic and returned to a clean analog ground. any good quality ceramic can be used for this capacitor. the capacitor with larger value and lower esr (equivalent series resistance) provides better psrr and line-transient response. the output capacitor must meet both requirements for minimum amount of capacitance and esr in all ldos application. the rt9013 is designed specifically to work with low esr ceramic output capacitor in space-saving and performance consideration. using a ceramic capacitor whose value is at least 1 f with esr is > 20m on the rt9013 output ensures stability. the rt9013 still works well with output capacitor of other types due to the wide stable esr range. figure 1. shows the curves of allowable esr range as a function of load current for various output capacitor values. output capacitor of larger capacitance can reduce noise and improve load transient response, stability, and psrr. the output capacitor should be located not more than 0.5 inch from the vout pin of the rt9013 and returned to a clean analog ground. figure 1 enable the rt9013 goes into sleep mode when the en pin is in a logic low condition. during this condit ion, the rt9013 has an en pin to turn on or turn off regulator, when the en pin is logic hight, the regulator will be turned on. the supply current to 0.7 a typical. the en pin may be directly tied to v in to keep the part on. the enable input is cmos logic and cannot be left floating. psrr the power supply rejection ratio (psrr) is defined as the gain from the input to output divided by the gain from the supply to the output. the psrr is found to be ? ? ? ? ? ? = supply error gain log 20 psrr note that when heavy load measuring, supply will cause temperature. and temperature will cause output voltage. so the heavy load psrr measuring is include temperature effect. current limit the rt9013 contains an independent current limiter, which monitors and controls the pass transistor's gate voltage, limiting the output current to 0.6a (typ.). the output can be shorted to ground indefinitely without damaging the part. thermal considerations thermal protection limits power dissipation in rt9013. when the operation junction temperature exceeds 170 c, the otp circuit starts the thermal shutdown function and turns the pass element off. the pass element turn on again after the junction temperature cools by 30 c. for continuous operation, do not exceed absolute maximum operation junction temperature 125 c. the power dissipation definition in device is : p d = (v in ? v out ) x i out + v in x i q the maximum power dissipation depends on the thermal resistance of ic package, pcb layout, the rate of surroundings airflow and temperature difference between junction to ambient. the maximum power dissipation can be calculated by following formula : p d(max) = ( t j(max) ? t a ) / ja region of stable c out esr vs. load current 0.001 0.01 0.1 1 10 100 0 100 200 300 400 500 load current (ma) region of stable c out esr ( ) rt9013-33pb, v in = 5v c in = c out = 1 f/x7r stable range unstable range unstable range
rt9013 preliminary 9 ds9013-05 august 2007 www.richtek.com figure 2. derating curves for rt9013 packages where t j(max) is the maximum operation junction temperature, t a is the ambient temperature and the ja is the junction to ambient thermal resistance. for recommended operating conditions specification of rt9013, where t j(max) is the maximum junction temperature of the die (125 c) and t a is the operated ambient temperature. the junction to ambient thermal resistance ja ( ja is layout dependent) for wdfn-6l 2x2 package is 165 c/w, sot-23-5 package is 250 c/w and sc-70-5 package is 333 c/w on the standard jedec 51-3 single-layer thermal test board. the maximum power dissipation at t a = 25 c can be calculated by following formula : p d(max) = (125 c ? 25 c) / 165 = 0.606 w for wdfn-6l 2x2 packages p d(max) = (125 c ? 25 c) / 250 = 0.400 w for sot-23-5 packages p d(max) = (125 c ? 25 c) / 333 = 0.300 w for sc-70-5 packages the maximum power dissipation depends on operating ambient temperature for fixed t j(max) and thermal resistance ja . for rt9013 packages, the figure 2 of derating curves allows the designer to see the effect of rising ambient temperature on the maximum power allowed. 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 12.5 25 37.5 50 62.5 75 87.5 100 113 125 ambient temperature power dissipation (w) ( c) single layer pcb wdfn-6l 2x2 sot-23-5 sc-70-5
rt9013 preliminary 10 ds9013-05 august 2007 www.richtek.com outline dimension a a1 e b b d c h l sot-23-5 surface mount package dimensions in millimeters dimensions in inches symbol min max min max a 0.889 1.295 0.035 0.051 a1 0.000 0.152 0.000 0.006 b 1.397 1.803 0.055 0.071 b 0.356 0.559 0.014 0.022 c 2.591 2.997 0.102 0.118 d 2.692 3.099 0.106 0.122 e 0.838 1.041 0.033 0.041 h 0.080 0.254 0.003 0.010 l 0.300 0.610 0.012 0.024
rt9013 preliminary 11 ds9013-05 august 2007 www.richtek.com a a1 e b b d c h l sc - 70 - 5 surface mount package dimensions in millimeters dimensions in inches symbol min max min max a 0.800 1.100 0.031 0.044 a1 0.000 0.100 0.000 0.004 b 1.150 1.350 0.045 0.054 b 0.150 0.400 0.006 0.016 c 1.800 2.450 0.071 0.096 d 1.800 2.250 0.071 0.089 e 0.650 0.026 h 0.080 0.260 0.003 0.010 l 0.210 0.460 0.008 0.018
rt9013 preliminary 12 ds9013-05 august 2007 www.richtek.com richtek technology corporation headquarter 5f, no. 20, taiyuen street, chupei city hsinchu, taiwan, r.o.c. tel: (8863)5526789 fax: (8863)5526611 richtek technology corporation taipei office (marketing) 8f, no. 137, lane 235, paochiao road, hsintien city taipei county, taiwan, r.o.c. tel: (8862)89191466 fax: (8862)89191465 email: marketing@richtek.com w-type 6l dfn 2x2 package dimensions in millimeters dimensions in inches symbol min max min max a 0.700 0.800 0.028 0.031 a1 0.000 0.050 0.000 0.002 a3 0.175 0.250 0.007 0.010 b 0.200 0.350 0.008 0.014 d 1.950 2.050 0.077 0.081 d2 1.000 1.450 0.039 0.057 e 1.950 2.050 0.077 0.081 e2 0.500 0.850 0.020 0.033 e 0.650 0.026 l 0.300 0.400 0.012 0.016 d 1 e a3 a a1 e b l d2 e2 see detail a 1 1 2 2 note : the configuration of the pin #1 identifier is optional, but must be located within the zone indicated. det ail a pin #1 id and tie bar mark options

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