? semiconductor components industries, llc, 2011 february, 2011 ? rev. 2 1 publication order number: cat6221/d cat6221 300 ma cmos dual ldo regulator description the 300 ma cmos dual ldo cat6221 combines in a single tsot ? 23 6 ? lead package two low dropout regulators (ldo), each with its own enable pin. the regulator outputs drive loads up to 300 ma. by design, the dual ldo provides fast response time during load current and line voltage changes. each ldo is optimized for low noise and high crosstalk isolation. with zero shut down current and a low quiescent current of 100 a, the dual ldo is ideal for battery ? operated devices with supply voltage from 2.3 v to 5.5 v. the dual ldo offers 1% initial accuracy and very low dropout voltage, typical 210 mv at 300 ma. stable operation is provided with small 1 f ceramic output capacitors, reducing required board space and component cost. other features include fold ? back current limit and thermal protection. the dual ldo is available in the tiny 6 ? lead tsot ? 23 package with a maximum height of 0.8 mm. features ? two outputs with guaranteed 300 ma peak output current ? low dropout voltages of 210 mv typical at 300 ma ? stable with ceramic output capacitors ? independent enable pins ? under voltage lockout ? no ? load ground current of 100 a typical ? full ? load ground current of 160 a typical ? 1.0% output voltage initial accuracy (v out 2.0 v) ? 2.0% accuracy over temperature (v out 2.0 v) ? ?zero? current shutdown mode ? fold ? back current limit and thermal protection ? tsot ? 23 6 ? lead, 0.8 mm height package ? these devices are pb ? free, halogen free/bfr free and are rohs compliant applications ? cellular phones ? battery ? powered devices ? consumer electronics http://onsemi.com tsot ? 23 td suffix case 419af pin connections t3ym marking diagram 1 6 (top view) vout1 vout2 en1 vin en2 1 see detailed ordering and shipping information in the package dimensions section on page 10 of this data sheet. ordering information enable input (active high) for vout1. 1 supply voltage input. 2 enable input (active high) for vout2. 3 ldo output voltage 2. 4 ground reference. 5 function pin # pin function name en1 vin en2 vout2 gnd t3 = cat6221 device code y = production year (last digit) m = production month: 1 ? 9, a, b, c gnd ldo output voltage 1. 6 vout1
cat6221 http://onsemi.com 2 figure 1. typical application circuit figure 2. cat6221 functional block diagram off vin 1 f 2.3 v to 5.5 v vout1 1 f 1 f vout2 gnd cat6221 vin vout1 on vout2 en1 en2 en1 en2 en1 vin vout1 shutdown switch ldo1 reference en2 gnd vout2 shutdown switch ldo2 off on c in c out1 c out2 v in v out2 v out1 pin function vin is the supply pin for the ldo. a small 1 f ceramic bypass capacitor is required between the v in pin and ground near the device. when using longer connections to the power supply, c in value can be increased without limit. the operating input voltage range is from 2.3 v to 5.5 v. en1 & 2 are the enable control logic (active high) for the regulator outputs. vout1 & 2 are the ldo regulator outputs. a small 1 f ceramic bypass capacitor is required between the vout pins and ground. for better transient response, its value can be increased to 4.7 f. the capacitor should be located near the device. for the tsot23 6 ? lead package, a continuous 300 ma output current for both ldos may turn ? on the thermal protection. on each output, a 250 internal shutdown switch discharges the output capacitor in the no ? load condition. gnd is the ground reference for the ldo. the pin must be connected to the ground plane on the pcb. table 1. absolute maximum ratings parameter rating unit v in 0 to 6.5 v v en , v out ? 0.3 to v in + 0.3 v junction temperature, t j +150 c power dissipation, p d internally limited (note 1) mw storage temperature range, t s ? 65 to +150 c lead temperature (soldering, 5 sec.) 260 c esd rating (human body model) 3 kv stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above t he recommended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability. table 2. recommended operating conditions (note 2) parameter range unit v in 2.3 to 5.5 v v en 0 to v in v junction temperature range, t j ? 40 to +125 c package thermal resistance (tsot23), ja 235 c/w note: typical application circuit with external components is shown above. 1. the maximum allowable power dissipation at any t a (ambient temperature) is p dmax = (t jmax ? t a )/ ja . exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. 2. the device is not guaranteed to work outside its operating rating.
cat6221 http://onsemi.com 3 table 3. electrical operating characteristics (note 3) (v in = v out + 1.0 v, v en = high, i out = 100 a, c in = c out = 1 f, ambient temperature of 25 c (over recommended operating conditions unless specified otherwise). bold numbers apply for the entire junction temperature range.) symbol parameter conditions min typ max unit v out ? acc output voltage accuracy initial accuracy (note 4) ? 1.0 +1.0 % ? 2.0 +2.0 tc out output voltage temp. coefficient 40 ppm/ c v r ? line line regulation v in = v out + 1.0 v to 5.5 v ? 0.2 0.1 +0.2 %/v ? 0.4 +0.4 v r ? load load regulation i out = 100 a to 300 ma 0.9 1.5 % 2 v drop dropout voltage (note 5) i out = 300 ma 210 280 mv 350 i gnd ground current both ldos enabled i out = 0 a 100 140 a 170 both ldos enabled i out = 300 ma 160 one ldo enabled i out = 0 a 55 75 90 one ldo enabled i out = 300 ma 85 i gnd ? sd shutdown ground current v en < 0.4 v 2 a 4 psrr power supply rejection ratio f = 1 khz 60 db f = 20 khz 45 i sc output short circuit current limit v out = 0 v 130 ma t on turn ? on time 150 s e n output noise voltage (note 6) bw = 10 hz to 100 khz 95 vrms r out ? sh shutdown switch resistance 250 v in ? uvlo under voltage lockout threshold 2.15 v esr c out equivalent series resistance 5 500 m enable input (en1, en2) v hi logic high level v in = 2.3 to 5.5 v 1.8 v v lo logic low level v in = 2.3 to 5.5 v 0.4 v i en enable input current v en = 0.4 v 0.05 1 a v en = v in 0.1 1 thermal protection t sd thermal shutdown 160 c t hys thermal hysteresis 10 c 3. specification for 2.8 v output version unless specified otherwise. 4. for v out < 2.0 v, the initial accuracy is 2% and across temp is 3%. 5. dropout voltage is defined as the input ? to ? output differential at which the output voltage drops 2% below its nominal value measured at 1 v differential. during test, the input voltage stays always above the minimum 2.3 v. 6. specification for 1.8 v output version.
cat6221 http://onsemi.com 4 typical characteristics (shown for 2.8 v/1.8 v outputs option) (v in = 3.8 v, i out = 100 a, en1 = en2 = v in , c in = c out = 1 f, t a = 25 c unless otherwise specified.) figure 3. output voltage 1 vs. temperature figure 4. output voltage 2 vs. temperature figure 5. load regulation vout1 figure 6. load regulation vout2 figure 7. ground current (en2 = gnd) figure 8. ground current (en1 = gnd)
cat6221 http://onsemi.com 5 typical characteristics (shown for 2.8 v/1.8 v outputs option) (v in = 3.8 v, i out = 100 a, en1 = en2 = v in , c in = c out = 1 f, t a = 25 c unless otherwise specified.) figure 9. ground current (en2 = gnd) figure 10. ground current (en1 = gnd) figure 11. output 1 dropout characteristics figure 12. ground current vs. input voltage figure 13. output voltage 1 vs. load current 1 figure 14. output voltage 2 vs. load current 2
cat6221 http://onsemi.com 6 typical characteristics (shown for 2.8 v/1.8 v outputs option) (v in = 3.8 v, i out = 100 a, en1 = en2 = v in , c in = c out = 1 f, t a = 25 c unless otherwise specified.) figure 15. line regulation vout1 figure 16. line regulation vout2 figure 17. psrr 1 & 2 vs. frequency (30 ma load)
cat6221 http://onsemi.com 7 transient characteristics (shown for 2.8 v/1.8 v outputs option) (v in = 3.8 v, i out = 100 a, en1 = en2 = v in , c in = c out = 1 f, t a = 25 c unless otherwise specified.) figure 18. enable turn ? on (100 a loads) figure 19. enable turn ? off (100 a loads) figure 20. enable turn ? on (300 ma/100 a loads) figure 21. enable turn ? off (300 ma/100 a loads) figure 22. enable turn ? on (100 a/300 ma loads) figure 23. enable turn ? off (100 a/300 ma loads) note: all transient characteristics are generated using the evaluation board cat621xeval1.
cat6221 http://onsemi.com 8 transient characteristics (shown for 2.8 v/1.8 v outputs option) (v in = 3.8 v, i out = 100 a, en1 = en2 = v in , c in = c out = 1 f, t a = 25 c unless otherwise specified.) figure 24. vout1 load transient response (0.1 to 300 ma) figure 25. vout2 load transient response (0.1 to 300 ma) figure 26. line transient response (0.1 ma loads) figure 27. line transient response (0.1/100 ma loads) figure 28. line transient response (100/0.1 ma loads) figure 29. separate enable operation (100 ma loads) note: all transient characteristics are generated using the evaluation board cat621xeval1.
cat6221 http://onsemi.com 9 package dimensions tsot ? 23, 6 lead case 419af ? 01 issue o e1 e a2 a1 e b d c a top view side view end view l1 l l2 notes: (1) all dimensions are in millimeters. angles in degrees. (2) complies with jedec mo-193. symbol min nom max a a1 a2 b c d e e1 e l 0o 8o l1 l2 0.01 0.80 0.30 0.12 0.30 0.05 0.87 0.15 2.90 bsc 2.80 bsc 1.60 bsc 0.95 typ 0.40 0.60 ref 0.25 bsc 1.00 0.10 0.90 0.45 0.20 0.50
cat6221 http://onsemi.com 10 example of ordering information (note 9) prefix device # suffix company id cat 6221 product number 6221 t3 t: tape & reel 3: 3,000 / reel tape & reel (note 11) (optional) td package td: tsot ? 23 ? g g: nipdau lead finish ? mg see table below for voltage combinations v out voltage (note 10) ordering information orderable part number v out voltage v out1 / v out2 package shipping cat6221 ? jftd ? gt3 2.5 v / 1.5 v tsot ? 23 3,000 / tape & reel cat6221 ? jgtd ? gt3 2.5 v / 1.8 v tsot ? 23 3,000 / tape & reel cat6221 ? jltd ? gt3 2.5 v / 2.7 v tsot ? 23 3,000 / tape & reel cat6221 ? jptd ? gt3 2.5 v / 3.0 v tsot ? 23 3,000 / tape & reel cat6221 ? mftd ? gt3 2.8 v / 1.5 v tsot ? 23 3,000 / tape & reel cat6221 ? mgtd ? gt3 2.8 v / 1.8 v tsot ? 23 3,000 / tape & reel cat6221 ? mltd ? gt3 2.8 v / 2.7 v tsot ? 23 3,000 / tape & reel cat6221 ? mptd ? gt3 2.8 v / 3.0 v tsot ? 23 3,000 / tape & reel cat6221 ? pftd ? gt3 3.0 v / 1.5 v tsot ? 23 3,000 / tape & reel cat6221 ? pgtd ? gt3 3.0 v / 1.8 v tsot ? 23 3,000 / tape & reel cat6221 ? pltd ? gt3 3.0 v / 2.7 v tsot ? 23 3,000 / tape & reel cat6221 ? pptd ? gt3 3.0 v / 3.0 v tsot ? 23 3,000 / tape & reel cat6221 ? sftd ? gt3 3.3 v / 1.5 v tsot ? 23 3,000 / tape & reel cat6221 ? sgtd ? gt3 3.3 v / 1.8 v tsot ? 23 3,000 / tape & reel cat6221 ? sltd ? gt3 3.3 v / 2.7 v tsot ? 23 3,000 / tape & reel cat6221 ? sptd ? gt3 3.3 v / 3.0 v tsot ? 23 3,000 / tape & reel 7. all packages are rohs ? compliant (lead ? free, halogen ? free). 8. the standard finish is nipdau pre ? plated (ppf) lead frames. 9. the device used in the above example is a cat6221 ? mgtd ? gt3 (v out1 = 2.8 v, v out2 = 1.8 v, in a tsot ? 23 package, nipdau, tape & reel). 10. for other voltage options, please contact your nearest on semiconductor sales office. 11. for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and ree l packaging specifications brochure, brd8011/d. on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its of ficers, employees, subsidiaries, af filiates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. cat6221/d publication ordering information n. american technical support : 800 ? 282 ? 9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81 ? 3 ? 5773 ? 3850 literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 303 ? 675 ? 2175 or 800 ? 344 ? 3860 toll free usa/canada fax : 303 ? 675 ? 2176 or 800 ? 344 ? 3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative
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