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? semiconductor components industries, llc, 2005 june, 2005 ? rev. 2 1 publication order number: NCP5663/d NCP5663 low output voltage, ultra?fast 3.0 a low dropout linear regulator with enable the NCP5663 is a high performance, low dropout linear regulator designed for high power applications that require up to 3.0 a current. it is offered in both fixed and adjustable output versions. with output voltages as low as 0.9 v and ultra?fast response times for load transients, the NCP5663 also provides additional features such as enable and error flag (for the fixed output version), increasing the utility of this device. a thermally robust, 5 pin d 2 pak, combined with an architecture that offers low ground current (independent of load), provides for a superior high?current ldo solution. features ? ultra?fast t ransient response (settling time: 1?3 s) ? low noise without bypass capacitor (28 v rms) ? low ground current independent of load (3.0 ma maximum) ? fixed/adjustable output voltage versions ? enable function ? error flag (fixed output version) ? current limit protection ? thermal protection ? 0.9 v reference voltage for ultra?low output operation ? power supply rejection ratio > 65 db ? this is a pb?free device applications ? servers ? asic power supplies ? post regulation for power supplies ? constant current source ? networking equipment ? gaming and stb modules d 2 pak case 936aa 1 5 y = a for adjustable version b for fixed 1.5 v version a = assembly location w = wafer lot y = year ww = work week g = pb?free marking diagram p5663dsy awyywwg tab = ground pin 1. enable 2. v in 3. ground 4. v out 5. adj (adjustable output) 5. error flag (fixed output) http://onsemi.com marking diagram see detailed ordering and shipping information in the package dimensions section on page 11 of this data sheet. ordering information 1 nc
NCP5663 http://onsemi.com 2 pin function description pin adj/fixed pin name description 1 enable this pin allows for on/off control of the regulator. to disable the device, connect to ground. if this function is not in use, connect to v in . 2 v in positive power supply input voltage 3 ground power supply ground 4 v out regulated output voltage 5 adj (adjustable version) this pin is connected to the resistor divider network and programs the output voltage. 5 error flag (fixed version) an error flag is triggered when the output voltage is out of regulation excluding transient signals that may occur. requires a pullup resistor 100 k . absolute maximum ratings rating symbol value unit input voltage v in 18 v output pin voltage v out ?0.3 to vin +0.3 v adjust pin voltage v adj ?0.3 to vin +0.3 v enable pin voltage v en ?0.3 to vin +0.3 v error flag voltage v ef ?0.3 to vin +0.3 v error flag current i ef 3.0 ma thermal characteristics thermal resistance junction?to?air thermal resistance junction?to?case r ja r jc 45 5.0 c/w operating junction temperature range t j ?40 to +150 c storage temperature range t stg ?55 to +150 c maximum ratings are those values beyond which device damage can occur. maximum ratings applied to the device are individual str ess limit values (not normal operating conditions) and are not valid simultaneously. if these limits are exceeded, device functional operation i s not implied, damage may occur and reliability may be affected. note: this device series contains esd protection and exceeds the following tests: human body model (hbm) jesd 22?a114?b machine model (mm) jesd 22?a115?a. the maximum package power dissipation is: p d t j(max) t a r ja the bipolar process employed for this ic is fully characterized and rated for reliable 18 v v ccmax operation. to avoid damaging the part or degrading it?s reliability, power dissipation transients should be limited to under 30 w for d 2 pak. for open?circuit to short?circuit transient, p dtransient = v ccmax * i sc .
NCP5663 http://onsemi.com 3 electrical characteristics (v in ? v out = 1.5 v, for typical values t j = 25 c, for min/max values t j = ?40 c to 85 c, c in = c out = 150 f unless otherwise noted.) characteristic symbol min typ max unit adjustable output version input voltage v in 2.0 ? 9.0 v output noise voltage v n ? 28 ? v rms output voltage accuracy t j = 25 c (v in = v out +1.5 v to 7.0 v, i out = 10 ma to 3.0 a) t j = ?20 to +125 c (v in = v out +1.5 v to 7.0 v, i out = 10 ma to 3.0 a) t j = ?40 to +150 c (v in = v out +1.5 v to 7.0 v, i out = 10 ma to 3.0 a) v out ?1% ?1.5% ?2% ? 0.9 ? +1% +1.5% +2% v adjustable pin input current i adj ? 40 ? na line regulation (i out = 10 ma, v out +1.5 v < v in < 7.0 v) reg line ? 0.03 ? % load regulation (10 ma < i out < 3.0 a) reg load ? 0.03 ? % dropout voltage (i out = 3.0 a) v do ? 1.0 1.3 v peak output current limit i out 3.0 ? ? a internal current limitation i lim ? 4.5 ? a ripple rejection (120 hz) ripple rejection (1 khz) rr ? ? 70 65 ? ? db thermal shutdown (guaranteed by design) t shd ? 160 ? c ground current i out = 3.0 a disabled state i q i qds ? ? 1.3 10 3.0 300 ma a enable input threshold voltage voltage increasing, on state, logic high voltage decreasing, off state, logic low v en 1.3 ? ? ? ? 0.3 v enable input current enable pin voltage = 0.3 v max enable pin voltage = 1.3 v min i en ? ? 0.5 0.5 ? ? a
NCP5663 http://onsemi.com 4 electrical characteristics (v in ? v out = 1.5 v, for typical values t j = 25 c, for min/max values t j = ?40 c to 85 c, c in = c out = 150 f unless otherwise noted.) characteristic symbol min typ max unit fixed output voltage input voltage v in 2.0 ? 9.0 v output noise voltage (v out = 0.9 v) v n ? 28 ? v rms output voltage accuracy (note 1) t j = 25 c (v in = v out +1.5 v to 7.0 v, i out = 10 ma to 3.0 a) t j = ?20 to +125 c (v in = v out +1.5 v to 7.0 v, i out = 10 ma to 3.0 a) t j = ?40 to +150 c (v in = v out +1.5 v to 7.0 v, i out = 10 ma to 3.0 a) v out ?1% ?1.5% ?2% ? v out ? +1% +1.5% +2% v line regulation (i out = 10 ma, v out +1.5 v < v in < 7.0 v) reg line ? 0.03 ? % load regulation (10 ma < i out < 3.0 a) reg load ? 0.2 ? % dropout voltage (i out = 3.0 a) v do ? 1.0 1.3 v peak output current limit i out 3.0 ? ? a internal current limitation i lim ? 4.5 ? a ripple rejection (120 hz) ripple rejection (1 khz) rr ? ? 70 65 ? ? db thermal shutdown (guaranteed by design) t shd ? 160 ? c ground current i out = 3.0 a disabled state i q i qds ? ? 1.3 30 3.0 300 ma a enable input threshold voltage voltage increasing, on state, logic high voltage decreasing, off state, logic low v en 1.3 ? ? ? ? 0.3 v enable input current enable pin voltage = 0.3 v max enable pin voltage = 1.3 v min i en ? ? 0.5 0.5 ? ? a error flag (fixed output) v cflt 91 94 97 % of v out error flag output low voltage saturation (i ef = 1.0 ma) v cfdo ? 200 ? mv error flag leakage i efleak ? 1.0 ? a error flag blanking time (note 2) t ef ? 50 ? s 1. fixed output voltages available at 0.9 v, 1.2 v, 1.5 v, 1.8 v, 2.5 v, 3.0 v, 3.3 v per request. 2. can be disabled per customer request.
NCP5663 http://onsemi.com 5 figure 1. typical schematic, adjustable output version voltage reference block v ref = 0.9 v output stage c in r1 r2 v out adj gnd in ck gnd figure 2. typical schematic, fixed output version enable block r3 r4 en on off voltage reference block v ref = 0.9 v output stage r1 r2 v out gnd in cc gnd enable block r3 r4 en on off rflag error flag ef r1 r2 v out v ref 1 c out v in c in c out v in
NCP5663 http://onsemi.com 6 0.70 0.80 0.90 1.00 1.10 1.20 1.30 0 0.5 1.0 1.5 2.0 2.5 3. 0 i out , output current (a) v do , dropout voltage (v) v out = 2.5 v c in = 150 f c out = 10 to 150 f t j = 25 c 910 0 0.5 1.0 1.5 2.0 2.5 3 .0 i out , output current (a) v out , output voltage (mv) 908 906 904 902 900 898 896 894 892 890 v in = 3.3 v i out = 3.0 a maximum c in = 150 f c out = 1.0 to 150 f t j = 25 c ?50 ?25 0 25 50 75 100 125 15 0 t j , junction temperature ( c) i sc , short circuit limit (a) 5.00 0.0 0.5 1.0 1.5 2.0 2.5 ?50 ?25 0 25 50 75 100 125 150 t j , junction temperature ( c) i gnd , ground current (ma) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 ?50 ?25 0 25 50 75 100 125 150 figure 1. dropout voltage vs. temperature figure 2. dropout voltage vs. output current figure 3. ground current vs. temperature figure 4. short circuit current limit vs. temperature t j , junction temperature ( c) v do , dropout voltage (v) i out = 3.0 a i out = 300 ma 910 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 v in , input voltage (v) v out , output voltage (mv) figure 5. output voltage vs. input voltage 4.75 4.50 4.25 4.00 3.75 3.50 3.25 3.00 908 906 904 902 900 898 896 894 892 890 i out = 10 ma c in = 150 f c out = 1.0 to 150 f t j = 25 c figure 6. output voltage vs. output load curren t v in = 2.5 v c in = 150 f
NCP5663 http://onsemi.com 7 0 10 20 30 40 50 60 70 80 90 0 1.0 10 100 100 0 figure 7. output current vs. input?output voltage differential i out = 1.0 a i out = 10 ma f, frequency (khz) rr, ripple rejection (db) v in = 3.3 v v out = 0.9 v i out = 10 ma c in = 150 f c out = 150 nf t j = 25 c 0 10 20 30 40 50 60 70 80 100 f, frequency (khz) noise density (nv rms / hz ) 90 0 10 20 30 40 50 60 70 80 100 f, frequency (khz) noise density (nv rms / hz ) 90 v in = 3.3 v v out = 0.9 v i out = 3.0 a c in = 150 f c out = 1.0 f t j = 25 c start 1.0 khz stop 200 khz start 1.0 khz stop 500 kh z v in = 2.5 v v out = 0.9 v c in = 100 nf c out = 1.0 f t j = 25 c figure 8. ripple rejection vs. frequency figure 9. noise density vs. frequency figure 10. noise density vs. frequency output current (a) input?output voltage differential (v) 1.2 1.0 0.8 0.6 0.4 0.2 0.0 t a = 25 c l = 25 mm copper 20 16 10 2 014 12 468
NCP5663 http://onsemi.com 8 1.0 a/div i out 20 mv/div v out i out = 3.0 a to 10 ma v in = 3.3 v v out = 0.9 v c in = 150 f c out = 150 f t a = 25 c time (1.0 s/div) i out = 3.0 a to 10 ma v in = 3.3 v v out = 0.9 v c in = 150 f c out = 150 f t a = 25 c time (100 ns/div) v in = 3.3 v v out = 0.9 v c in = 150 f c out = 150 f t a = 25 c i out = 10 ma to 3.0 a time (1.0 s/div) figure 11. load transient response figure 12. load transient response figure 13. load transient response figure 14. load transient response v in = 3.3 v v out = 0.9 v c in = 150 f c out = 150 f t a = 25 c i out = 10 ma to 3.0 a time (100 ns/div) 1.0 a/div 20 mv/div i out v out 1.0 a/div 20 mv/div i out v out 1.0 a/div 20 mv/div i out v out v in = 3.3 v v out = 0.9 v c in = 150 f c out = 10 f t a = 25 c i out = 10 ma to 3.0 a time (500 ns/div) 1.0 a/div 20 mv/div i out v out v in = 3.3 v v out = 0.9 v c in = 150 f c out = 10 f t a = 25 c i out = 3.0 a to 10 ma time (5.0 s/div) 1.0 a/div 20 mv/div i out v out figure 15. load transient response figure 16. load transient response
NCP5663 http://onsemi.com 9 application information the NCP5663 is a high performance low dropout 3.0 a linear regulator suitable for high power applications, featuring an ultra?fast response time and low noise without a bypass capacitor. it is offered in both fixed and adjustable output versions with voltages as low as 0.9 v. additional features, such as enable and error flag (fixed output version) in crease the utility of the NCP5663. it is thermally robust and includes the safety features necessary during a fault condition, which provide for an attractive high current ldo solution for server, asic power supplies, networking equipment applications, and many others. input capacitor the recommended input capacitor value is a 150 f oscon with an equivalent series resistance (esr) of 50 m . it is especially required if the power source is located more than a few inches from the NCP5663. this capacitor will reduce device sensitivity and enhance the output transient response time. the pcb layout is very important and in order to obtain the optimal solution, the vin and gnd traces should be sufficiently wide to minimize noise and unstable operation. output capacitor proper output capacitor selection is required to maintain stability. the NCP5663 is stable for c out as low as 10 f (figures 15 and 16) and guaranteed to be stable at an output capacitance of, c out > 33 f with an esr < 300 m over the output current range of 10 ma to 3.0 a. for pcb layout considerations, place the recommended ceramic capacitor close to the output pin and keep the leads short. this should help ensure ultra?fast transient response times. adjustable output operation the application circuit for the adjustable output version is shown in figure 1. the reference voltage is 0.9 v and the adjustable pin current is typically 40 na. a resistor divider network, r1 and r2, is calculated using the following formula: r1 r2 v out v ref 1 current limit operation as the peak output current increases beyond its limitation, the device is internally clampled to 4.5 a, thus causing the output voltage to decrease and go out of regulation. this allows the device never to exceed the maximum power dissipation. error flag operation the error flag pin on the NCP5663 will produce a logic low when it drops below the nominal output voltage. refer to the electrical characteristics for the threshold values at which point the error flag goes low. when the NCP5663 is above the nominal output voltage, the error flag will remain at logic high. the external pullup resistor needs to be connected between v in (pin 1) and the error flag pin (pin 5). a resistor of approximately 100 k is recommended to minimize the current consumption. no pullup resistor is required if the error flag output is not being used.
NCP5663 http://onsemi.com 10 figure 17. test board used for evaluation
NCP5663 http://onsemi.com 11 ordering information device nominal output voltage package shipping ? NCP5663dsadjr4g adj (pb?free) d 2 pak 800 tape & reel NCP5663ds15r4g (note 3) fixed, 1.5 v (pb?free) 800 tape & reel 3. fixed output voltages available at 0.9 v, 1.2 v, 1.5 v, 1.8 v, 2.5 v, 3.0 v, 3.3 v per request. ?for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specifications brochure, brd8011/d.
NCP5663 http://onsemi.com 12 package dimensions 0.067 bsc dim min max min max millimeters inches a 0.396 0.406 10.05 10.31 b 0.330 0.340 8.38 8.64 c 0.170 0.180 4.31 4.57 d 0.026 0.035 0.66 0.91 e 0.045 0.055 1.14 1.40 g 1.70 bsc h 0.539 0.579 13.69 14.71 k 0.055 0.066 1.40 1.68 l 0.000 0.010 0.00 0.25 m 0.098 0.108 2.49 2.74 n 0.017 0.023 0.43 0.58 notes: 1. dimensions and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. package outline exclusive of mold flash and metal burr. 4. package outline exclusive of plating thickness. 5. foot length measured at intercept point between datum a and lead surface. c e p n m w r l ?a? a b h k d 5 pl g 12345 s u v p 0.058 0.078 1.47 1.98 r 0 8 s 0.095 0.105 2.41 2.67 u u1 v 0 8 u1 v1 v1 w 0.010 0.25 0.296 0.304 7.52 7.72 0.265 0.272 6.72 6.92 0.296 0.300 7.53 7.63 0.040 0.044 1.01 1.11 8.38 0.33 1.016 0.04 16.02 0.63 10.66 0.42 3.05 0.12 1.702 0.067 scale 3:1 mm inches *for additional information on our pb?free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. soldering footprint* d 2 pak 5?lead case 936aa?01 issue b 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, affiliates, 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. publication ordering information n. american technical support : 800?282?9855 toll free usa/canada japan : on semiconductor, japan customer focus center 2?9?1 kamimeguro, meguro?ku, tokyo, japan 153?0051 phone : 81?3?5773?3850 NCP5663/d the product described herein (NCP5663), may be covered by one or more of the following u.s. patents: 5,920,184; 5,834,926. ther e may be other patents pending. literature fulfillment : literature distribution center for on semiconductor p.o. box 61312, phoenix, arizona 85082?1312 usa phone : 480?829?7710 or 800?344?3860 toll free usa/canada fax : 480?829?7709 or 800?344?3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : http://onsemi.com order literature : http://www.onsemi.com/litorder for additional information, please contact your local sales representative.

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