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AP7341 document number: ds36523 rev. 4 - 2 1 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 300ma high psrr low noise ldo with enable description the AP7341 is a low dropout regulator with high output voltage accuracy, low r dson , high psrr, low output noise and low quiescent current . this regulator is based on a cmos process. the AP7341 includes a voltage reference, error amplifier, current limit circuit and an enable input to turn it on and off. with the integrated resistor network fixed output voltage versions can be delivered. with its low power consumption and line and load t ransient response the AP7341 is well suited for low power handheld communication equipment. the AP7341 is packaged in a n x2 - dfn1010 - 4 package and allows for smallest footprint and dense pcb layout. features ? low v in and wide v in range: 1.7v to 5. 2 5v ? guar antee output current, 150ma ? v out accuracy 1% ? ripple rejection 75 d b at 1khz ? low o utput n oise, 60 vrms from 10hz to 100khz ? quiescent current as l ow as 3 5 a ? v out fixed 1. 1 v to 3.3v totally lead - f ree & and fully rohs c ompliant (note 1 ) halogen and antimony fre e, green device (note 2) pin assignments pin1 C v out , pin2 C gnd, pin3 C en, pin4 C v in applications ? smart p hone/ p ad ? rf supply ? cameras ? portable video ? portable media p layer ? wireless adapter ? wireless communication . note s: 1 . no pur posely added lead. fully eu directive 2002/95/ec (rohs) & 2011/65/eu (rohs 2) compliant. 2. see http://www.diodes.com/quality/lead_free.html for more information about diodes incorporateds definitions of hal ogen - and antimony - free,"green" and lead - f ree . 3. halogen - and antimony - free "green products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total br + cl) and <1000ppm antimony compounds. typical applications circuit fi gure 1 typical application circuit a p 7 3 4 1 v i n e n g n d v o u t v i n v o u t c i n 1 . 0 u f c o u t 1 . 0 u f
AP7341 document number: ds36523 rev. 4 - 2 2 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 pin description s p in number x2 - dfn1010 - 4 function 1 vout power output pin 2 gnd ground 3 en enable pin. this pin should be driven either high or low and must not be floating. driving this pin high enables the r egulator, while pulling it low puts the regulator into shutdown mode 4 vin power input pin absolute maximum ratings ( note 4 ) ( @ t a = +25c, unless otherwise specified.) symbol parameter ratings unit v in input voltage 6. 0 v v ce input voltage en 6. 0 v v out output voltage - 0.3 to v in +0.3 v i out output current 4 00 ma p d power dissipation 400 mw t a operating temperature - 40 to + 85 c t stg storage temperature - 55 to + 125 c note: 4 . a). stresses beyond those listed under absolute maximum ratings may cause permanent damage to the devi ce. these are stress ratings only and functional operation of the device at these conditions is not implied. exposure to absolute - maximum - rated conditions for extended periods may affect device reliability. b). ratings apply to ambient temperature at 25 c . the jedec high - k board design used to derive this data was a 2 inch x 2 inch multilayer board with 1 - ounce internal power and ground planes and 2 - ounce copper traces on the top and bottom of the board. recommended operating conditions (@ t a = +25c, unless otherwise specified.) s ymbol p arameter min max u nit v in input voltage 1. 7 5. 2 5 v i out output current 0 30 0 ma t a operating ambient temperature - 40 +85 c
AP7341 document number: ds36523 rev. 4 - 2 3 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 electrical characteristics (@ t a = +25c, v en = v out +1.0v, c in = c out = 1.0f, i out = 1.0ma, unless otherwise specified.) parameter conditions min typ max units input voltage t a = - 40c to +85c 1.7 5.25 v output voltage accuracy (note 1 1 ) v in = (v out - nom +1.0v) to 5.25 v , i out = 1 ma to 150ma t a = +25c - 1 1 % t a = - 40c to +85c - 1.5 +1.5 line regulation (dv out /dv in /v out ) v in = (v out - nom +1.0v) to 5.25v , i out = 1.0 ma 0.0 2 0. 1 %/v l oad regulation (dv out /v out ) v in = v out - nom +1.0v, i out = 1ma to 30 0ma 15 30 mv quiescent current (note 6 ) i out = 0ma 35 50 ua i standby v en = 0v (disabled) 0.0 1 1 .0 ua output current 30 0 ma fold - back short current (note 7 ) v out short to ground 55 ma psrr (note 8 ) v in = [v out +1v] vdc +0.2vp - pac, v out 1.8v, i out = 30ma f = 1khz 75 db output noise voltage (notes 8 & 9 ) bw = 10hz to 100khz , i out = 30 ma 6 0 vrm s d ropout voltage (note 5 ) i out = 15 0ma 1. 1 v v out < 1.5v 0.5 0 0.62 v 1.5v v out < 1.7v 0.38 0.47 1.7v v out < 2.0v 0.34 0.42 2.0v v out < 2.5v 0.2 8 0.36 2.5v v out < 2.8v 0.22 0.3 0 2.8v v out 3.3v 0.21 0.27 i out = 30 0ma v out = 1 . 8 v 0.50 0.65 v out = 2 . 5 v 0.37 0.48 v out = 3.3v 0.30 0.40 output voltage temperature coefficient i out = 30ma, t a = - 40c to +85c 30 p pm/c en input low voltage 0 0. 5 v en input high voltage 1. 3 5.25 v en input leakage v en = 0, v in = 5.0v or v en = 5.0v, v in = 0v - 1.0 +1.0 a on resistance of n - c hannel for auto - d ischarge (note 10 ) v in = 4.0v v en = 0v (disabled) 30 not es : 5 . dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its n ominal value. 6 . quiescent current is defined here i s the difference in current between the input and the output . 7 . s hort circuit current is measured with v out pulled to gnd . 8 . this specification is guaranteed by design. 9 . to make sure lowest environment noise minimizes the influence on noise measurement . 10 . AP7341 has 2 options for output, built - in discharge and non - discharge 11 . potential multiple grades based on following output voltage accuracy .
AP7341 document number: ds36523 rev. 4 - 2 4 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 typical characteristics output noise (AP7341 - 33) 0.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 0 100 200 300 400 500 output voltage v out (v) output current i out (ma) output voltage vs. output current AP7341 - 18 v in = 2.8 v v in = 3.6 v v in = 4.2 v v in =5v v in =5.5 v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 100 200 300 400 500 output voltage v out (v) output current i out (ma) output voltage vs. output current AP7341 - 25 v in = 3.5v v in = 4.2v v in = 5v v in =5.5v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 100 200 300 400 500 output voltage v out (v) output current i out (ma) output voltage vs. output current AP7341 - 33 v in = 4.3v v in = 5v v in = 5.5v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 1 2 3 4 5 output voltage v out (v) input vo l tage v in (v) output voltage vs. intput voltage AP7341 - 25 i out = 1ma i out = 30ma i out = 50ma 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 1 2 3 4 5 output voltage v out (v) input vo l tage v in (v) output voltage vs. intput voltage AP7341 - 33 i out = 1ma i out = 30m a i out = 50m a
AP7341 document number: ds36523 rev. 4 - 2 5 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 typical characteristics (cont.) 0 10 20 30 40 50 0 1 2 3 4 5 supply current i ss ( a ) input voltage v in (v) supply current vs. input voltage AP7341 - 25 0 10 20 30 40 50 0 1 2 3 4 5 supply current i ss ( a ) input voltage v in (v) supply current vs. input voltage AP7341 - 33 30 32 34 36 38 40 - 50 - 25 0 25 50 75 100 supply current i ss (a) temperature topt ( ) supply current vs. temperature ap7340 - 25 30 32 34 36 38 40 - 50 - 25 0 25 50 75 100 supply current i ss (a) temperature topt ( ) supply current vs. temperature AP7341 - 33 2.45 2.46 2.47 2.48 2.49 2.50 2.51 2.52 2.53 2.54 2.55 - 50 - 25 0 25 50 75 100 output voltage v out (v) temperature topt ( ) output voltage vs. temperature AP7341 - 25 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 3.33 3.34 3.35 - 50 - 25 0 25 50 75 100 output voltage v out (v) temperature topt ( ) output voltage vs. temperature AP7341 - 33
AP7341 document number: ds36523 rev. 4 - 2 6 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 typical ch aracteristics (cont.) 0 50 100 150 200 250 300 350 400 450 500 550 600 650 0 50 100 150 200 250 300 dropout voltage v dif (mv) output current i out (ma) dropout voltage vs. output current AP7341 - 18 85 25 - 40 0 50 100 150 200 250 300 350 400 450 500 550 600 650 - 50 - 25 0 25 50 75 100 dropout voltage v dif (mv) temperature topt ( ) dropout voltage vs. temperature AP7341 - 18 50ma 150ma 300ma 0 50 100 150 200 250 300 350 400 450 500 0 50 100 150 200 250 300 dropout voltage v dif (mv) output current i out (ma) dropout voltage vs. output current AP7341 - 25 85 25 - 40 0 50 100 150 200 250 300 350 400 450 500 - 50 - 25 0 25 50 75 100 dropout voltage v dif (mv) temperature topt ( ) dropout voltage vs. temperature AP7341 - 25 50ma 150ma 300ma 0 50 100 150 200 250 300 350 400 450 500 0 50 100 150 200 250 300 dropout voltage v dif (mv) output current i out (ma) dropout voltage vs. output current AP7341 - 33 85 25 - 40 0 50 100 150 200 250 300 350 400 450 - 50 - 25 0 25 50 75 100 dropout voltage v dif (mv) temperature topt ( ) dropout voltage vs. temperature AP7341 - 33 50ma 150ma 300ma
AP7341 document number: ds36523 rev. 4 - 2 7 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 typical characteristics (cont.) 0 10 20 30 40 50 60 70 80 90 2.8 3.3 3.8 4.3 4.8 5.3 ripple rejection rr (db ) in put voltage v in (v ) ripple rejection vs. input bias voltage AP7341 - 28 1khz 10khz 100kh z i out =1m a 0 10 20 30 40 50 60 70 80 90 2.8 3.3 3.8 4.3 4.8 5.3 ripple rejection rr (db ) in put voltage v in (v ) ripple rejection vs. input bias voltage AP7341 - 28 1khz 10khz 100khz i out =30ma 0 20 40 60 80 100 120 100 1000 10000 100000 1000000 ripple rejection rr (db) frequency f (hz) ripple rejection vs. frequency AP7341 - 18 i out = 1ma i out = 30ma i out = 150ma 0 10 20 30 40 50 60 70 80 90 100 100 1000 10000 100000 1000000 ripple rejection rr (db) frequency f (hz) ripple rejection vs. frequency AP7341 - 25 i out = 1ma i out = 30ma i out = 150ma 0 20 40 60 80 100 120 100 1000 10000 100000 1000000 ripple rejection rr (db) frequency f (hz) ripple rejection vs. frequency AP7341 - 33 i out = 1ma i out = 30ma i out = 150ma
AP7341 document number: ds36523 rev. 4 - 2 8 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 AP7341 - 25 time t ( s) output voltage input voltage 0 20 40 60 80 100 output voltage v out (v) 2.500 2.480 2.520 5 4 3 input voltage v in (v) AP7341 - 33 time t ( s) output voltage input voltage 0 20 40 60 80 100 output voltage v out (v) 3.300 3.280 3.320 5 4 6 input voltage v in (v) typical characteristics (cont.) AP7341 - 33 time t ( s) output voltage output current 1ma ? 300ma 0 20 40 60 80 100 output voltage v out (v) 600 300 0 3.30 3.10 3.50 2.90 output current i out (ma) v in =4.3v tr=tf=0.5 s AP7341 - 25 time t ( s) output voltage output current 1ma ? 300ma 0 20 40 60 80 100 output voltage v out (v) 600 300 0 2.50 2.30 2.70 2.10 output curren t i out (ma) v in =3.5v tr=tf=0.5 s ap734 1 - 33 time t ( s) output voltage output current 1ma ? 150ma 0 20 40 60 80 100 output voltage v out (v) 300 150 0 3.30 3.10 3.50 2.90 output curr ent i out (ma) v in =4.3v tr=tf=0.5 s ap734 1 - 25 time t ( s) output voltage output current 1ma ? 150ma 0 20 40 60 80 100 output voltage v out (v) 2.50 2.30 2.70 3 00 150 0 2.10 output current i out (ma) v in =3.5v tr=tf=0.5 s
AP7341 document number: ds36523 rev. 4 - 2 9 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 typical characteristics (cont.) AP7341 - 25 (non - discharge version) time t (s) output voltage ce input voltage 0 4 8 12 16 20 output voltage v out (v) 2 1 3 4 2 0 ce input voltage v ce (v) i out =0ma 0 4 6 AP7341 - 33AP7341 - 18 time t output ce input voltagece 0 200 400 600 800 outpu t voltage v out 2 1 3 4 2 0 ce input voltage v ce i out =0ma i out =30ma i out =300ma 0 4 6 ( s)time t ( s) voltageoutput voltage input voltage 0 200 400 600 800 (v)output voltage v out (v) 2 1 3 4 2 0 (v)ce input voltage v ce (v) i out =0ma i out =30ma i out =300ma 0 4 6 AP7341 - 33 time t ( s) output voltage ce input voltage 0 80 160 240 320 output voltage v out (v) 1 0 2 6 4 2 3 ce input voltage v ce (v) i out =0ma i out =30ma i out =300ma 0 AP7341 - 25 time t ( s) output voltage ce input voltage 0 80 160 240 320 output voltage v out (v) 1 0 2 6 4 2 3 ce input voltage v ce (v) i out =0ma i out =30ma i out =300ma 0 AP7341 - 18 time t ( s) output voltage ce input voltage 0 80 160 240 320 output voltage v out (v) 1 0 2 6 4 2 3 ce input voltage v ce (v) i o ut =0ma i out =30ma i out =300ma 0
AP7341 document number: ds36523 rev. 4 - 2 10 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 application information output capacitor an outpu t capacitor (c out ) is needed to improve transient response and maintain stability. the AP7341 is stable with very small ceramic output capacitors. the esr (equivalent series resistance) and capacitance drives the selection. if the application has large loa d variations, it is recommended to utilize low - esr bulk capacitors. it is recommended to place ceramic capacitors as close as possible to the load and the ground pin and care should be taken to reduce the impedance in the layout. input capacitor to preve nt the input voltage from dropping during load steps it is recommended to utilize an input capacitor (c in ). a minimum 0.47f ceramic capacitor is recommended between v in and gnd pins to decouple input power supply glitch. this input capacitor must be located as close as possible to the device to assure input stability and reduce noise. for pcb layout, a wide copper trace is required for both v in and gnd pins. enable control the AP7341 is turned on by setting the en pin high, and is turned off by pulling it low. if this feature is not used, the en pin should be tied to v in pin to keep the regulator output on at all time. t o ensure proper operation, the signal source used to drive the en pin must be able to swing above and below the specified turn - on/off voltage thresholds listed in the electrical characteristics section. short circuit protection when v out pin is short - circ uit to gnd, short circuit protection will be triggered and clamp the output current to approximately 60ma. this feature protects the regulator from over - current and damage due to overheating. layout considerations for good ground loop and stability, the input and output capacitors should be located close to the input, output, and ground pins of the device. the regulator ground pin should be connected to the external circuit ground to reduce voltage drop caused by trace impedance. gro und plane is generally used to reduce trace impedance. wide trace should be used for large current paths from v in to v out , and load circuit. esr vs. output current ceramic type output capacitor is recommended for this series; however, the other output capacitors with low esr also can be used. the relations between i out (output current) and esr of an output capacitor are shown below. the stable region is marked as the hatched area in the graph. measurement conditions : frequency band : 10hz to 2mhz , temperature : ?40c to + 85c 0.001 0.01 0.1 1 10 100 0 50 100 150 200 250 300 esr ( ) output current iout (ma) esr vs. output current AP7341 - 18 - 40 c 85 c 0.001 0.01 0.1 1 10 100 0 50 100 150 200 250 300 esr ( ) output current iout (ma) esr vs. output current AP7341 - 33 - 40 c 85 c
AP7341 document number: ds36523 rev. 4 - 2 11 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 ordering information (note 12 ) part number package code packaging 7 tape and reel quantity part number suffix AP7341 - xxfs4 - 7 fs4 x2 - dfn1010 - 4 5 000/tape & reel - 7 AP7341d - xxfs4 - 7 fs4 x2 - dfn1010 - 4 5000/tape & reel - 7 note: 12 . for packaging details, go to our website at http : //www.diodes.com/products/packages.html marking information (1) x2 - dfn1010 - 4 part number package identification code AP7341 - 11fs4 - 7 x2 - dfn1010 - 4 tf AP7341 - 12fs4 - 7 x2 - dfn1010 - 4 t2 AP7341 - 15fs4 - 7 x2 - dfn1010 - 4 t3 AP7341 - 18fs4 - 7 x2 - dfn1010 - 4 t4 AP7341 - 18 5 fs4 - 7 x2 - dfn1010 - 4 t5 AP7341 - 22fs4 - 7 x2 - dfn1010 - 4 th AP7341 - 25fs4 - 7 x2 - dfn1010 - 4 t6 AP7341 - 28fs4 - 7 x2 - dfn1010 - 4 t7 AP7341 - 28 5 fs4 - 7 x2 - dfn1010 - 4 t8 AP7341 - 3 0 fs4 - 7 x2 - dfn1010 - 4 t9 AP7341 - 3 1 fs4 - 7 x2 - dfn1010 - 4 tc AP7341 - 3 2 fs4 - 7 x2 - dfn1010 - 4 td AP7341 - 33fs4 - 7 x2 - dfn1010 - 4 te AP7341d - 11fs4 - 7 x2 - dfn1010 - 4 uf AP7341 d - 12fs4 - 7 x2 - dfn1010 - 4 u2 AP7341 d - 15fs4 - 7 x2 - dfn1010 - 4 u3 AP7341 d - 18fs4 - 7 x2 - dfn1010 - 4 u4 AP7341 d - 18 5 fs4 - 7 x2 - dfn1010 - 4 u5 AP7341d - 22fs4 - 7 x2 - dfn1010 - 4 uh AP7341 d - 25fs4 - 7 x2 - dfn1010 - 4 u6 AP7341 d - 28fs4 - 7 x2 - dfn1010 - 4 u7 AP7341 d - 28 5 fs4 - 7 x2 - dfn1010 - 4 u8 AP7341 d - 30 fs4 - 7 x2 - dfn1010 - 4 u9 AP7341 d - 31 fs4 - 7 x2 - dfn1010 - 4 uc AP7341 d - 32 fs4 - 7 x2 - dfn1010 - 4 ud a p7341 d - 33 fs4 - 7 x2 - dfn1010 - 4 ue y : year : 0 ~ 9 ( top view ) x : a ~ z : internal code y w x xx xx : identification code w : week : a ~ z : 1 ~ 26 week ; a ~ z : 27 ~ 52 week ; z represents 52 and 53 week
AP7341 document number: ds36523 rev. 4 - 2 12 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 package outline dimensions (all d imensions in mm . ) please see ap02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version. suggested pad layout please see ap02001 at http://www.di odes.com/datasheets/ap02001.pdf for the latest version. x2 - dfn1010 - 4 dim min max typ a - 0.40 0.39 a1 0.00 0.05 0.02 a3 - - 0.13 b 0.20 0.30 0.25 d 0.95 1.05 1.00 d2 0.38 0.58 0.48 e 0.95 1.05 1.00 e2 0.38 0.58 0.48 e - - 0.65 l 0.20 0.30 0.25 l 1 0.27 0.37 0.32 l 2 0.02 0.12 0.07 z - - 0.050 all dimensions in mm dimensions value (in mm) c 0.650 x 0.250 x1 0.480 x2 0.900 y 0.400 y1 0.470 y2 0.220 y 3 0.480 y4 1.300 c x2 y1 y4 y3 x1 x y y2 l2 e2 d2 c0.25 c0.18(3x) l1 seating plane a a1 a3 d e z b e l
AP7341 document number: ds36523 rev. 4 - 2 13 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 tape orientat ion for x2 - dfn1010 - 4 note : 1 3 . the taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf
AP7341 document number: ds36523 rev. 4 - 2 14 of 14 www.diodes.com july 2014 ? diodes incorporated advanced information AP7341 important notice diodes incorporated makes no warranty of any kind , express or implied, with regards to this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose (and their equivalents under the laws of any jurisdiction). diodes incorporated and its su bsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. diodes incorporated does not assume any liability a rising out of the appl ication or use of this document or any product described herein; neither does diodes incorporated convey any license under it s patent or trademark rights, nor the rights of others. any customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold diodes incorporated and all the companies whose products are represented on diod es incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. should customers purchase or use diodes incorporated products for any unintended or unauthorized application, customers shall indemnify and hold diodes incor porated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. products described herein may be covered by one or more united states, international or foreign patents pending. product names and markings noted herein may also be covered by one or more united states, international or foreign trademarks. this document is written in engl ish but may be translated into multiple languages for reference. only the english version of this document is the final and determinative format released by diodes incorporated. life support diodes incorporated products are specifically not authorized f or use as critical components in life support devices or systems without the express written approval of the chief executive officer of diodes incorporated. as used herein: a. life support devices or systems are devices or systems which: 1. are inten ded to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in t he labeling can be reasonably expected to result in significant injury to the user. b. a critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety - related requirements concerning their products and any use of diodes incorporated products in such safety - critical, life support devices or systems, notwithstanding any devices - or systems - related information or support that may be provided by diodes incorporated. further, customers must fully indemn ify diodes incorporated and its representatives against any damages arising out of the use of diodes incorporated products in such safety - critical, life support devices or systems. copyright ? 201 4 , diodes incorporated www.diodes.com

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