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ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 1 of 18 www.diodes.com august 2011 ? diodes incorporated new product description the ap7332 is 300ma, dual fixed output voltage, low dropout linear regulator. the ap7332 includes the pass element, error amplifier, band-gap, curr ent limit and thermal shutdown circuitry which protect the ic from damage in fault conditions. the ap7332 has two enable pins (en1 and en2) to independently turn the respective channel on when a logic high level is applied. the characteristics of low dropout voltage and low quiescent current make it suitable for low power applications. the typical quiescent current is approximately 60 a. this device is available with fixed output options of 1.0v/1.0v, 1.0v/3.3v, 1.2v/1 .8v, 1.2v/3.3v, 1.5v/2.8v, 1.5v/3.0v, 1.5v/3.3v, 1.8v/2 .7v, 1.8v/2.8v, 1.8v/3.0v, 1.8v/3.3v, 2.5v/3.0v, 2.8v/3.3v and 3.3v/3.3v. for other output options pleas e contact our local sales representative directly or thr ough our distributor located in your area. the ap7332 is available in sot26 and dfn2018-6 packages. features ? 300ma low dropout regulator with en ? very low iq: 60a ? wide input voltage range: 2v to 6v ? fixed output options: 1.0v to 3.3v ? high psrr: 65db at 1khz ? fast start-up time: 60s ? stable with low esr, 1f ceramic output capacitor ? excellent load/line transient response ? low dropout: 300mv at 300ma ? current limit protection ? short circuit protection ? thermal shutdown protection ? ambient temperature range: -40oc to 85c ? sot26 and dfn2018-6: available in ?green? molding compound (no br, sb) ? lead free finish/rohs compliant (note 1) pin assignments 1 3 2 6 4 out2 gnd en2 en1 out1 5 in (top view) sot26 in en1 en2 1 2 3 6 5 4 out1 out2 gnd (top view) dfn2018-6 applications ? cellular phones ? smart phones, pdas ? mp3/mp4 ? bluetooth head set ? low power application note: 1. eu directive 2002/95/ec (rohs). all applicable rohs exemptions applied. please visit our website at http://www.diodes.c om/products/lead_free.html .
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 2 of 18 www.diodes.com august 2011 ? diodes incorporated new product typical application circuit en2 vin en1 vout2 vout1 gnd on off 1uf v in 1uf v out2 1uf v out1 on off pin descriptions pin name pin number description sot26 dfn2018-6 out2 1 5 voltage output 2. bypass to ground through 1f ceramic capacitor gnd 2 4 ground en2 3 3 enable input 2, active high en1 4 2 enable input 1, active high in 5 1 voltage input. bypass to ground through at least 1f capacitor out1 6 6 voltage output 1. bypass to ground through 1f ceramic capacitor
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 3 of 18 www.diodes.com august 2011 ? diodes incorporated new product functional block diagram in en 1 gnd out 1 current limit and short circuit bandgap thermal shutdown current limit and short circuit out 2 gate driver gate driver en 2
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 4 of 18 www.diodes.com august 2011 ? diodes incorporated new product absolute maximum ratings symbol parameter ratings unit esd hbm human body model esd protection 8 kv esd mm machine model esd protection 400 v v in input voltage 6.5 v out, en voltage v in + 0.3 v continuous load current internal limited t op operating junction temperat ure range -40 ~ 125 c t st storage temperature range -65 ~150 c p d power dissipation (note 3) sot26 950 mw dfn2018-6 2200 mw t j maximum junction temperature 150 c recommended operating conditions symbol parameter min max unit v in input voltage 2 6 v i out output current (note 3) 0 300 ma t a operating ambient temperature -40 85 c notes: 2. ratings apply to ambient temperature at 25c. 3. the device maintains a stable, regulat ed output voltage without a load current.
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 5 of 18 www.diodes.com august 2011 ? diodes incorporated new product electrical characteristics (t a = 25 o c, v in = v out +1v, c in = 1uf, c out = 1uf, v en = v in , unless otherwise stated) symbol parameter test conditions min typ. max unit v ref adj reference voltage (adjustable version) i out = 0ma 0.8 v i adj adj leakage (adjustable version) 0.1 1 a v out output voltage accuracy t a = -40 o c to 85 o c, i out = 10% of i out-ma x -2 2 % ' v out / ' v in /v line regulation v in = (v out +1v) to v in-max , v en = v in , i out = 1ma 0.01 0.20 %/v ' v out /v out load regulation v in = (v out +1v) to v in-max , i out = 1ma to 300ma -0.6 0.6 % v dropout dropout voltage (note 4) v out < 2.5v, i out = 300ma 350 600 mv v out 2.5v, i out = 300ma 250 400 i q input quiescent current (2 channels) v en = v in , i out = 0ma 60 80 a i shdn input shutdown current v en = 0v, i out = 0ma 0.1 1 a i leak input leakage current v en = 0v, out grounded 0.1 1 a t st start-up time v en = 0v to 2.0v in 1 s, i out = 300ma 150 s psrr psrr (note 5) v in = [v out +1v]v dc + 0.5v ppac , f = 1khz, i out = 50ma 60 65 db i short short-circuit current v in = v in-min to v in-max , v out = 1/4 target v out 120 ma i limit current limit v in = v in-min to v in-max , v out /r out = 1a 400 600 ma v il en input logic low voltage v in = v in-min to v in-max 0.4 v v ih en input logic high voltage v in = v in-min to v in-max 1.4 v i en en input current v in = 0v or v in-max -1 1 a t shdn thermal shutdown threshold 165 qc t hys thermal shutdown hysteresis 30 qc ja thermal resistance junction-to-ambient sot26 (note 6) 140 o c/w dfn2018-6 (note 7) 60 notes: 4. dropout voltage is the voltage diff erence between the input and th e output at which the output voltage drops 2% below its nominal value. 5. this specification is guaranteed by design. 6. test condition for sot26: device mounted on fr-4 substrate pc board, with minimum recommended pad layout 7. test condition for dfn2018-6: device mounted on fr-4 2-layer board,2oz copper, with minimum recommended pad on top layer an d 3 vias to bottom layer.
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 6 of 18 www.diodes.com august 2011 ? diodes incorporated new product typical performance characteristics start-up time time (40 s/div) start-up time time (40 s/div) line transient response time (100 s/div) line transient response time (100 s/div) v in =5v, no load c in =c out1 =c out2 =1 f v out1 =1v (500mv/div) v in =5v, both i load =300ma c in =c out1 =c out2 =1 f v out2 =3.3v (1v/div) v out1 =1v (500mv/div) v out2 =3.3v (1v/div) v out1 =1v (10mv/div) v out2 =3.3v (10mv/div) v out1 =1v (10mv/div) v out2 =3.3v (10mv/div) v in =4.3v to 5.3v (1v/div) c out1 =c out2 =1 f, tr=tf=2 s, both i load =100ma v in =4.3v to 5.3v (1v/div) c out1 =c out2 =1 f, tr=tf=2 s, both i load =30ma v en =0 to 2v (2v/div) v en =0 to 2v (2v/div)
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 7 of 18 www.diodes.com august 2011 ? diodes incorporated new product typical performance characteristics (cont.) load transient response time (100 s/div) load transient response time (100 s/div) en1 pin response time (400 s/div) en2 pin response time (400 s/div) v out2 =3.3v (20mv/div) i load =10ma to 50ma (50ma/div) v in =v en =4.3v c in =c out1 =c out2 =1 f v in =v en =4.3v c in =c out1 =c out2 =1 f i load =10ma to 100ma (100ma/div) v out1 =1v (20mv/div) v out2 =3.3v (20mv/div) v out1 =1v (20mv/div) v en1 =2v to 0v (2v/div) v out2 =2.8v (1v/div) v en2 =2v (2v/div) v out1 =1.8v (1v/div) v en1 =2v (2v/div) v en2 =2v to 0v (2v/div) v out2 =2.8v (1v/div) v out1 =1.8v (1v/div) both i load =50ma both i load =50ma
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 8 of 18 www.diodes.com august 2011 ? diodes incorporated new product typical performance characteristics (cont.) en pin shutdown response time (100 s/div) psrr vs frequency 0 20 40 60 80 100 10 100 1000 10000 100000 100000 0 frequency(hz) psrr(db) 10 100 1k 10k 100k 1m 2.8v 1.8v t a =25c v in =3.8v+0.5v ppac c out1 =c out2 =1 f both i load =50ma v in =5v, both i load =50ma v out1 =1.8v (1v/div) v out2 =2.8v ( 1v/div ) v en =0v to 5v (5v/div) input quiescent current vs temperature 0 20 40 60 80 -50 -25 0 25 50 75 100 125 temperature( ) input quiescent current( a) input quiescent current vs input voltage 0 20 40 60 80 44.555.56 input voltage(v) input quiescent current( a) t a =25c v out1 =1v v out2 =3.3v i out =0ma v in =v en =4.3v v out1 =1v v out2 =3.3v i out =0ma
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 9 of 18 www.diodes.com august 2011 ? diodes incorporated new product typical performance characteristics (cont.) line regulation -0.04 -0.02 0 0.02 0.04 23 456 input voltage(v) output variation (%/v) output variation ( % /v) line regulation -0.04 -0.02 0 0.02 0.04 4 4.5 5 5.5 6 input voltage(v) output variation (%/v) load regulation -0.20 -0.15 -0.10 -0.05 0.00 0 50 100 150 200 250 300 output current(ma) output variation (%/v) load regulation -0.20 -0.15 -0.10 -0.05 0.00 0 50 100 150 200 250 300 output current(ma) v out =3.3v i out =1ma v out =1v i out =1ma v in =v en =2v v out =1v v in =v en =4.3v v out =3.3v -45c 25c 90c -45c 25c 90c -45c 25c 90c 25c -45c 90c
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 10 of 18 www.diodes.com august 2011 ? diodes incorporated new product typical performance characteristics (cont.) current limit vs input voltage 0 200 400 600 800 23456 input voltage(v) current limit(a) current limit vs temperature 0 200 400 600 800 -50 -25 0 25 50 75 100 125 temperature( ) current limit(a) dropout voltage vs output current 0 100 200 300 400 0 50 100 150 200 250 300 output current(ma) dropout voltage(mv) dropout voltage vs output current 0 100 200 300 400 500 0 50 100 150 200 250 300 output current(ma) dropout voltage(mv) v out =3.3v v out =1.8v 25c 90c -45c 25c 90c -45c v in =2v t a =25c
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 11 of 18 www.diodes.com august 2011 ? diodes incorporated new product typical performance characteristics (cont.) short circuit current vs input voltage 0 40 80 120 160 200 23456 input voltage(v) short circuit current (ma) short-circuit current vs temperature 0 40 80 120 160 200 -50 -25 0 25 50 75 100 125 temperature( ) short-circuit current(ma) v in =4.3v -45c 25c 90c
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 12 of 18 www.diodes.com august 2011 ? diodes incorporated new product application note input capacitor a 1 f ceramic capacitor is recommended between in and gnd pins to decouple input power supply glitch and noise. the amount of the capacitance may be increased without limit. this input capacitor must be located as close as possible to the device to assure input stability and reduce noise. for pcb lay out, a wide copper trace is required for both in and gnd pins. a lower esr capacitor type allows the use of less capacitan ce, while higher esr type requires more capacitance. output capacitor the output capacitor is required to stabiliz e and improve the transient response of t he ldo. the ap7332 is stable with very small ceramic output capacitors. using a cera mic capacitor value that is at least 1 f with esr R 10m ? on the output ensures stability. higher capacitance values hel p to improve line and load transient re sponse. the output capacitance may be increased to keep low undershoot and overshoot. output capacitor must be placed as close as possible to out and gnd pins. region of stable c out esr vs. load current 0.001 0.01 0.1 1 10 100 0 20 50 100 150 200 250 300 load current (ma) c out esr ( ? ) no load stability other than external resistor divider, no minimum load is requir ed to keep the device stable. the device will remain stable and regulated in no load condition. on/off input operation the ap7332 is turned on by setting the en pin high, and is turned o ff by pulling it low. if this feature is not used, the en pi n should be tied to in pin to keep the regulator output on at all time. to ensure proper operation, the signal source used to dri ve the en pin must be able to swing above and below the specified turn-on/off voltage thresholds listed in the electrical characteristics section under v il and v ih . unstable range stable range unstable range c in =c out1 = c out2 =1 f
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 13 of 18 www.diodes.com august 2011 ? diodes incorporated new product application note (cont.) current limit protection when output current at out pin is higher than current limit threshold, the current lim it protection will be triggered and clamp the output current to approxim ately 600ma to prevent over-current and to protect the regulator from damage due to overheating. short circuit protection when out pin is short-circuit to gnd, short circuit protecti on will be triggered and clamp the output current to approximately 120ma. this feature protects t he regulator from over-current and damage due to overheating. thermal shutdown protection thermal protection disables the output when the junction tem perature rises to approximately +165c, allowing the device to cool down. when the junction temperature reduces to approximat ely +135c the output circui try is enabled again. depending on power dissipation, thermal re sistance, and ambient temperat ure, the thermal pr otection circuit may cycle on and off. this cycling limits the heat dissipation of the regulato r, protecting it from dam age due to overheating. ultra fast start-up after enabled, the ap7332 is able to provide full power in as littl e as tens of microseconds, ty pically 150s, without sacrific ing low ground current. this feature will help load circuitry move in and out of st andby mode in real ti me, eventually extend battery life for mobile phones and other portable devices. fast transient response fast transient response ldo can extend battery life. tdma- based cell phone protocols such as global system for mobile communications (gsm) have a transmit/receive duty factor of only 12.5 percent, enabling power savings by putting much of the baseband circuitry into standby mode in between transmit cycl es. in baseband circuits, the load often transitions virtually instantaneously from 100a to 100ma. to meet this load requirement, the ldo must react very quickly without a large voltage drop or overshoot ? a requirement that cannot be met with conventional, general-purpose ldo. the ap7332?s fast transient response from 0 to 300ma provides stable voltage supply for fast dsp and gsm chipset with fast changing load. low quiescent current the ap7332, consuming only around 60a for all input range, provides great power saving in portable and low power applications. power dissipation the device power dissipation and proper sizing of the thermal plane that is connected to the thermal pad is critical to avoid thermal shutdown and ensure reliable operation. power dissipation of the device depends on input voltage and load conditions and can be calculated by: p d = (v in - v out ) x i out the maximum power dissipation, handled by the device, depends on the maximum junction to ambient thermal resistance, maximum ambient temperature, and maximum device junction tem perature, which can be calculated by the equation in the following: p d (max@t a ) = ja r ) a t-c150( +
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 14 of 18 www.diodes.com august 2011 ? diodes incorporated new product ordering information ap7332- xxyy xx - 7 package fm : dfn2018-6 7 : tape & reel packing output voltage : v out1 /v out2 w6 : sot26 1010 : 1.0v / 1.0v 1533 : 1.5v / 3.3v 1528 : 1.5v / 2.8v 1233 : 1.2v / 3.3v 1218 : 1.2v / 1.8v 1033 : 1.0v / 3.3v 1830 : 1.8v / 3.0v 2530 : 2.5v / 3.0v 1828 : 1.8v / 2.8v 1530 : 1.5v / 3.0v 1833 : 1.8v / 3.3v 2833 : 2.8v / 3.3v 3333 : 3.3v / 3.3v 1827 : 1.8v / 2.7v device package code packaging (note 8) 7? tape and reel quantity part number suffix ap7332-xxyyw6-7 w6 sot26 3000/tape & reel -7 ap7332-xxyyfm-7 fm dfn2018-6 3000/tape & reel -7 note: 8. pad layout as shown on diodes inc. suggested pad layout document ap02001, which c an be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 15 of 18 www.diodes.com august 2011 ? diodes incorporated new product marking information (1) sot26 1 2 3 6 7 4 ( top view ) xxx : identification code w : week : a~z : 1~26 week; x : a~z : internal code y : year 0~9 a~z : 27~52 week; z represents 52 and 53 week 7 5 y w x xxx (2) dfn2018-6 ( top view ) y : year : 0~9 xxx : identification code w : week : a~z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week x : a~z : internal code y w x xxx device package package identification code ap7332-1010 sot 26 dfn2018-6 baa ap7332-1033 sot26 dfn2018-6 bam ap7332-1218 sot 26 dfn2018-6 bas ap7332-1233 sot26 dfn2018-6 baz ap7332-1528 sot26 dfn2018-6 ba8 ap7332-1530 sot 26 dfn2018-6 bba ap7332-1533 sot26 dfn2018-6 bbc ap7332-1827 sot 26 dfn2018-6 beb ap7332-1828 sot 26 dfn2018-6 bbk ap7332-1830 sot26 dfn2018-6 bbn ap7332-1833 sot26 dfn2018-6 bbr ap7332-2530 sot26 dfn2018-6 bb2 ap7332-2833 sot26 dfn2018-6 bcu ap7332-3333 sot 26 dfn2018-6 bea
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 16 of 18 www.diodes.com august 2011 ? diodes incorporated new product package outline dimensions (all dimensions in mm) (1) sot26 (2) dfn2018-6 bottom view side view 1.75/1.875 1.3/1.5 1.95/2.075 0.50typ 0.15/0.25 0.9/1.1 0.545/0.605 0/0.05 0.13typ 6x- 0.10 c 0.08 c c seating plane a b 2x- 0.25 b 0.25 a 0.10 c ab 2x- pin #1 id 0.2/0.3 c l c l c l c l 4x-0.50 0.20 1.20 1.600 6x-0.25 6x-0.35 top view land pattern recommendation (unit:mm) pin #1
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 17 of 18 www.diodes.com august 2011 ? diodes incorporated new product taping orientation (note 9) for dfn2018-6 notes: 9. the taping orientation of the other package type can be found on our website at http://www.diodes .com/datasheets/a p02007.pdf
ap7332 dual 300ma low quiescent current fast transient low dropout linear regulator ap7332 document number: ds35132 rev. 3 - 2 18 of 18 www.diodes.com august 2011 ? diodes incorporated new product 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 subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or ot her changes without further notice to this document and any product described herein. diodes incorporated does not assume any liabi lity arising out of the application or use of this document or any product described herein; neither does diodes incorporated convey any license under its patent or trademark rights, nor the rights of others. any customer or user of this document or products desc ribed 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 diodes incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthoriz ed sales channel. should customers purchase or use diodes incorporated products for any unintended or unauthorized application, customers shall indemnify and hold diodes incorporated and its representatives harmless against all claims, damages, expenses, and attorney fee s arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized a pplication. 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. life support diodes incorporated products are specifically not authorized for 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 intended 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 the 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 dev ices 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 indemnify 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 ? 2011, diodes incorporated www.diodes.com

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