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? semiconductor components industries, llc, 2015 february, 2015 ? rev. 7 1 publication order number: ncp717/d ncp717 300 ma, very-low quiescent current, i q 25 a, low noise, low dropout regulator the ncp717 is 300 ma ldo that provides the engineer with a very stable, accurate voltage with very low noise suitable for space constrained, noise sensitive applications. in order to optimize performance for battery operated portable applications, the ncp717 employs the dynamic quiescent current adjustment for very low i q consumption at no?load. features ? operating input voltage range: 1.8 v to 5.5 v ? available in fixed voltage options: 0.8 v to 5 v contact factory for other voltage options ? very low quiescent current of typ. 25 a ? very low noise: 22 v rms from 100 hz to 100 khz ? low dropout: 175 mv typical at 300 ma ? 2% accuracy over load/line/temperature ? high power supply ripple rejection: 70 db at 1 khz ? thermal shutdown and current limit protections ? stable with a 1 f ceramic output capacitor ? available in xdfn 1.0 x 1.0 mm package ? these are pb?free devices typical applicaitons ? pdas, mobile phones, gps, smartphones ? wireless handsets, wireless lan, bluetooth ? , zigbee ? ? portable medical equipment ? other battery powered applications figure 1. typical application schematic ncp717 in en out gnd off on v out c out 1 f ceramic c in v in xdfn4 mx suffix case 711aj marking diagram www. onsemi.com see detailed ordering and shipping information in the package dimensions section on page 15 of this data sheet. ordering information pin connection 1 x = specific device code m = date code x m 1 43 2 1 out gnd in en (top view) epad
ncp717 www. onsemi.com 2 in out bandgap reference active discharge* mosfet driver with current limit thermal shutdown enable logic gnd auto low power mode en en figure 2. simplified schematic block diagram *active output discharge function is present only in ncp717amxyyytcg and ncp717cmxyyytcg devices. yyy denotes the particular v out option. pin function description pin no. pin name description 1 out regulated output voltage pin. a small ceramic capacitor with minimum value of 1 f is needed from this pin to ground to assure stability. 2 gnd power supply ground. 3 en driving en over 0.9 v turns on the regulator. driving en below 0.4 v puts the regulator into shutdown mode. 4 in input pin. a small capacitor is needed from this pin to ground to assure stability. ? epad exposed pad should be connected directly to the gnd pin. soldered to a large ground copper plane allows for effective heat removal. absolute maximum ratings rating symbol value unit input voltage (note 1) v in ?0.3 v to 6 v v output voltage v out ?0.3 v to v in + 0.3 v v enable input v en ?0.3 v to v in + 0.3 v v output short circuit duration t sc s maximum junction temperature t j(max) 150 c storage temperature t stg ?55 to 150 c esd capability, human body model (note 2) esd hbm 2000 v esd capability, machine model (note 2) esd mm 200 v stresses exceeding those listed in the maximum ratings table may damage the device. if any of these limits are exceeded, device function ality should not be assumed, damage may occur and reliability may be affected. 1. refer to electrical characteristis and application information for safe operating area. 2. this device series incorporates esd protection and is tested by the following methods: esd human body model tested per eia/jesd22?a114, esd machine model tested per eia/jesd22?a115, latchup current maximum rating tested per jedec standard: jesd78. thermal characteristics rating symbol value unit thermal characteristics, xdfn4 1x1 mm thermal resistance, junction?to?air r ja 250 c/w
ncp717 www. onsemi.com 3 electrical characteristics ?40 c t j 125 c; v in = v out(nom) + 0.5 v or 2.3 v, whichever is greater; i out = 10 ma, c in = c out = 1 f, unless otherwise noted. v en = 0.9 v. typical values are at t j = +25 c. min./max. are for t j = ?40 c and t j = +125 c respectively (note 3). parameter test conditions symbol min typ max unit operating input voltage v in 1.8 5.5 v output voltage accuracy 2.3 v v in 4.2 v i out = 0 ? 300 ma v out(nom) < 1.5 v v out ?30 +30 mv v out(nom) + 0.5 v or 2.3 v v in 5.5 v i out = 0 ? 300 ma v out(nom) 1.5 v ?2 +2 % line regulation v out + 0.5 v or 2.3 v v in 5.5 v, i out = 10 ma reg line 400 v/v load regulation i out = 0 ma to 300 ma reg load 12 v/ma load transient i out = 1 ma to 300 ma or 300 ma to 1 ma in 1 s, c out = 1 f tran load 95 mv dropout voltage (note 4) i out = 300 ma v out = 2.5 v v do 190 350 mv v out = 2.8 v 175 280 v out = 2.85 v 175 265 v out = 3.0 v 170 250 v out = 3.1 v 165 235 v out = 3.2 v 165 235 v out = 3.3 v 155 230 output current limit v out = 90% v out(nom) i cl 379 500 ma ground current i out = 0 ma i q 25 35 a i out = 2 ma i gnd 105 i out = 300 ma i gnd 250 shutdown current v en 0.4 v, v in = 5.5 v i dis 0.01 1 a en pin threshold voltage high threshold low threshold v en voltage increasing v en voltage decreasing v en_hi v en_lo 0.9 0.4 v en pin input current v en = 5.5 v i en 180 500 na turn?on time c out = 1.0 f, from assertion of v en to 98% v out(nom) t on 200 s power supply rejection ratio v in = 3.6 v, v out = 3.1 v i out = 150 ma f = 100 hz f = 1 khz f = 10 khz psrr 58 70 55 db output noise voltage v in = 3.6 v, v out = 3.1 v, i out = 300 ma f = 100 hz to 100 khz v n 22 v rms thermal shutdown temperature temperature increasing from t j = +25 c t sd 160 c thermal shutdown hysteresis temperature falling from t sd t sdh 20 c active output discharge resistance v en < 0.4 v version a r dis 1.2 k version c 120 product parametric performance is indicated in the electrical characteristics for the listed test conditions, unless otherwise noted. product performance may not be indicated by the electrical characteristics if operated under different conditions. 3. performance guaranteed over the indicated operating temperature range by design and/or characterization. production tested at t j = t a = 25 c. low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible . 4. characterized when v out falls 100 mv below the regulated voltage at v in = v out(nom) + 0.5 v.
ncp717 www. onsemi.com 4 figure 1. output voltage vs. temperature v out = 1.2 v ?40 ?20 0 140 120 100 20 40 60 80 junction temperature ( c) output voltage (v) 1.220 1.215 1.210 1.205 1.200 1.195 1.190 1.185 1.180 i out = 10 ma i out = 300 ma c in = c out = 1 f v in = 2.3 v v out(nom) = 1.2 v figure 1. output voltage vs. temperature v out = 1.5 v 1.510 1.505 1.500 1.495 1.490 1.485 1.480 ?40 ?20 0 140 120 100 20 40 60 80 junction temperature ( c) output voltage (v) i out = 10 ma c in = c out = 1 f v in = 2.3 v v out(nom) = 1.5 v i out = 300 ma 1.515 1.520 figure 2. output voltage vs. temperature v out = 1.85 v figure 3. output voltage vs. temperature v out = 2.85 v figure 4. output voltage vs. temperature v out = 3.0 v junction temperature ( c) output voltage (v) 1.810 ?40 ?20 0 140 120 100 20 40 60 80 c in = c out = 1 f v in = 2.3 v v out(nom) = 1.8 v i out = 10 ma i out = 300 ma 2.860 ?40 ?20 0 140 120 100 20 40 60 80 junction temperature ( c) output voltage (v) i out = 10 ma i out = 300 ma c in = c out = 1 f v in = 3.35 v v out(nom) = 2.85 v junction temperature ( c) output voltage (v) 3.000 ?40 ?20 0 140 120 100 20 40 60 80 2.995 2.990 2.985 2.980 2.975 2.970 i out = 10 ma i out = 300 ma c in = c out = 1 f v in = 3.5 v v out(nom) = 3.0 v 1.805 1.800 1.795 1.790 1.785 1.780 1.775 2.855 2.850 2.845 2.840 2.835 2.830 figure 5. quiescent current vs. temperature v out = 1.5 v 35 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 input voltage (v) quiescent current ( a) 30 25 20 15 10 5 0 3.5 3 t a = 125 c c in = c out = 1 f i out = 0 ma v out(nom) = 1.5 v t a = 25 c t a = ?40 c
ncp717 www. onsemi.com 5 figure 6. quiescent current vs. temperature v out = 1.8 v 35 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 input voltage (v) quiescent current ( a) 30 25 20 15 10 5 0 3.5 3 c in = c out = 1 f i out = 0 ma v out(nom) = 1.8 v t a = 125 c t a = 25 c t a = ?40 c figure 7. quiescent current vs. temperature v out = 2.8 v 35 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 input voltage (v) quiescent current ( a) 30 25 20 15 10 5 0 3.5 3 c in = c out = 1 f i out = 0 ma v out(nom) = 2.8 v t a = 125 c t a = 25 c t a = ?40 c figure 8. quiescent current vs. temperature v out = 3.0 v 35 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 input voltage (v) quiescent current ( a) 30 25 20 15 10 5 0 3.5 3 t a = 125 c t a = 25 c t a = ?40 c c in = c out = 1 f i out = 0 ma v out(nom) = 3.0 v figure 9. quiescent current vs. temperature v out = 3.1 v 35 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 input voltage (v) quiescent current ( a) 30 25 20 15 10 5 0 3.5 3 t a = 125 c t a = 25 c t a = ?40 c c in = c out = 1 f i out = 0 ma v out(nom) = 3.1 v figure 10. quiescent current vs. temperature v out = 3.3 v 35 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 input voltage (v) quiescent current ( a) 30 25 20 15 10 5 0 3.5 3 t a = 125 c t a = 25 c t a = ?40 c c in = c out = 1 f i out = 0 ma v out(nom) = 3.3 v figure 11. output voltage vs. input voltage v out = 1.5 v 2.00 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 input voltage (v) output voltage (v) 3.5 3 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 c in = c out = 1 f i out = 0 ma v out(nom) = 1.5 v t a = 125 c t a = 25 c t a = ?40 c
ncp717 www. onsemi.com 6 figure 12. output voltage vs. input voltage v out = 1.8 v c in = c out = 1 f i out = 0 ma v out(nom) = 1.8 v t a = 125 c t a = 25 c t a = ?40 c 2.00 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 input voltage (v) output voltage (v) 3.5 3 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 figure 13. output voltage vs. input voltage v out = 2.8 v c in = c out = 1 f i out = 0 ma v out(nom) = 2.8 v 3.50 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 input voltage (v) output voltage (v) 3.5 3 t a = 125 c t a = 25 c t a = ?40 c 3.00 2.50 2.00 1.50 1.00 0.50 0.00 figure 14. output voltage vs. input voltage v out = 3.0 v figure 15. output voltage vs. input voltage v out = 3.1 v figure 16. output voltage vs. input voltage v out = 3.3 v t a = 125 c t a = 25 c t a = ?40 c 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 3.5 3 output voltage (v) 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 c in = c out = 1 f i out = 0 ma v out(nom) = 3.0 v input voltage (v) 3.50 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 input voltage (v) output voltage (v) 3.5 3 3.00 2.50 2.00 1.50 1.00 0.50 0.00 t a = 125 c t a = 25 c t a = ?40 c c in = c out = 1 f i out = 0 ma v out(nom) = 3.1 v 0 0.5 1 5.5 5 4.5 1.5 2 2.5 4 3.5 3 output voltage (v) 4.00 input voltage (v) 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 c in = c out = 1 f i out = 0 ma v out(nom) = 3.3 v t a = 125 c t a = 25 c t a = ?40 c figure 17. dropout voltage vs. output current v out = 1.2 v 0 dropout voltage (v) 0.9 output current (a) 0.05 0.3 0.25 0.2 0.1 0.15 t a = 125 c c in = c out = 1 f v out(nom) = 1.2 v t a = 25 c t a = ?40 c 0.8 0.7 0.6 0.5 0.4
ncp717 www. onsemi.com 7 figure 18. dropout voltage vs. output current v out = 1.5 v figure 19. dropout voltage vs. output current v out = 1.85 v 0 dropout voltage (v) 0.7 output current (a) 0.05 0.3 0.25 0.2 0.1 0.6 0.5 0.4 0.3 0.2 0.1 0 t a = 125 c c in = c out = 1 f v out(nom) = 1.5 v t a = 25 c t a = ?40 c dropout voltage (v) 0.45 output current (a) 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 c in = c out = 1 f v out(nom) = 1.85 v t a = 125 c t a = 25 c t a = ?40 c 0.15 0 0.05 0.3 0.25 0.2 0.1 0.15 figure 20. dropout voltage vs. output current v out = 2.8 v figure 21. dropout voltage vs. output current v out = 3.0 v figure 22. dropout voltage vs. output current v out = 3.1 v figure 23. dropout voltage vs. output curren t v out = 3.3 v dropout voltage (v) 0.3 output current (a) t a = 125 c t a = 25 c t a = ?40 c c in = c out = 1 f v out(nom) = 2.8 v output current (a) dropout voltage (v) c in = c out = 1 f v out(nom) = 3.0 v t a = 125 c t a = 25 c t a = ?40 c dropout voltage (v) output current (a) 0 output current (a) 0.04 0 .2 0.16 0.12 0.08 0.200 0.175 0.150 0.125 0.100 0.075 0.050 0.025 0.000 dropout voltage (v) c in = c out = 1 f v out(nom) = 3.3 v t a = 125 c t a = 25 c t a = ?40 c c in = c out = 1 f v out(nom) = 3.3 v 0 0.05 0.3 0.25 0.2 0.1 0.15 0.25 0.2 0.15 0.1 0.05 0 0.3 t a = 125 c t a = 25 c t a = ?40 c 0 0.05 0.3 0.25 0.2 0.1 0.15 0.25 0.2 0.15 0.1 0.05 0 0.3 0.25 0.2 0.15 0.1 0.05 0 0 0.05 0 .3 0.25 0.2 0.1 0.15
ncp717 www. onsemi.com 8 figure 24. short?circuit limit vs. temperature v out = 1.5 v figure 25. short?circuit limit vs. temperature v out = 1.85 v junction temperature ( c) 440 output current (ma) ?40 ?20 0 140 120 100 20 40 60 80 420 400 380 360 340 320 300 short?circuit current: i out for v out = 0 v c in = c out = 1 f v in = 2.3 v v out(nom) = 1.5 v current limit: i out for v out = v out(nom) ? 0.1 v junction temperature ( c) 440 output current (ma) ?40 ?20 0 140 120 100 20 40 60 80 420 400 380 360 340 320 300 short?circuit current: i out for v out = 0 v current limit: i out for v out = v out(nom) ? 0.1 v c in = c out = 1 f v in = 2.35 v v out(nom) = 1.85 v figure 26. short?circuit limit vs. temperature v out = 2.85 v figure 27. short?circuit limit vs. temperature v out = 3.0 v figure 28. short?circuit limit vs. temperature v out = 3.1 v figure 29. short?circuit limit vs. temperature v out = 3.3 v junction temperature ( c) 440 output current (ma) ?40 ?20 0 140 120 100 20 40 60 80 420 400 380 360 340 320 300 short?circuit current: i out for v out = 0 v c in = c out = 1 f v in = 3.35 v v out(nom) = 2.85 v current limit: i out for v out = v out(nom) ? 0.1 v junction temperature ( c) 440 output current (ma) ?40 ?20 0 140 120 100 20 40 60 80 420 400 380 360 340 320 300 short?circuit current: i out for v out = 0 v current limit: i out for v out = v out(nom) ? 0.1 v c in = c out = 1 f v in = 3.5 v v out(nom) = 3.0 v junction temperature ( c) 440 output current (ma) ?40 ?20 0 140 120 100 20 40 60 80 420 400 380 360 340 320 460 short?circuit current: i out for v out = 0 v c in = c out = 1 f v in = 3.6 v v out(nom) = 3.1 v current limit: i out for v out = v out(nom) ? 0.1 v junction temperature ( c) ?40 ?20 0 140 120 100 20 40 60 80 440 420 400 380 360 340 320 460 output current (ma) short?circuit current: i out for v out = 0 v current limit: i out for v out = v out(nom) ? 0.1 v c in = c out = 1 f v in = 3.8 v v out(nom) = 3.3 v
ncp717 www. onsemi.com 9 figure 30. line regulation vs. temperature v out = 1.2 v junction temperature ( c) ?40 ?20 0 140 120 100 20 40 60 80 5.0 line regulation (mv) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 line regulation from v in = 2 v to 5.5 v c in = c out = 1 f v out(nom) = 1.2 v i out = 10 ma figure 31. line regulation vs. temperature v out = 1.5 v junction temperature ( c) ?40 ?20 0 14 0 120 100 20 40 60 80 5.0 line regulation (mv) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 line regulation from v in = 2 v to 5.5 v c in = c out = 1 f v in = 2.0 v to 5.5 v v out(nom) = 1.5 v i out = 10 ma figure 32. line regulation vs. temperature v out = 1.85 v ?40 ?20 0 140 120 100 20 40 60 80 junction temperature ( c) 5.0 line regulation (mv) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 line regulation from v in = 2.35 v to 5.5 v c in = c out = 1 f v in = 2.35 v to 5.5 v v out(nom) = 1.85 v i out = 10 ma figure 33. line regulation vs. temperature v out = 2.85 v junction temperature ( c) ?40 ?20 0 14 0 120 100 20 40 60 80 5.0 line regulation (mv) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 line regulation from v in = 3.35 v to 5.5 v c in = c out = 1 f v in = 3.35 v to 5.5 v v out(nom) = 2.85 v i out = 10 ma figure 34. line regulation vs. temperature v out = 3.0 v figure 35. line regulation vs. temperature v out = 3.1 v ?40 ?20 0 140 120 100 20 40 60 80 junction temperature ( c) 5.0 line regulation (mv) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 line regulation from v in = 3.5 v to 5.5 v c in = c out = 1 f v in = 3.5 v to 5.5 v v out(nom) = 3.0 v i out = 10 ma junction temperature ( c) ?40 ?20 0 14 0 120 100 20 40 60 80 5.0 line regulation (mv) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 line regulation from v in = 3.6 v to 5.5 v c in = c out = 1 f v in = 3.6 v to 5.5 v v out(nom) = 3.1 v i out = 10 ma
ncp717 www. onsemi.com 10 figure 36. line regulation vs. temperature v out = 3.3 v ?40 ?20 0 140 120 100 20 40 60 80 junction temperature ( c) 5.0 line regulation (mv) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 line regulation from v in = 3.8 v to 5.5 v c in = c out = 1 f v in = 3.8 v to 5.5 v v out(nom) = 3.3 v i out = 10 ma figure 37. load regulation vs. temperature v out = 1.2 v junction temperature ( c) 10.0 load regulation (mv) ?40 ?20 0 140 120 100 20 40 60 80 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 load regulation from i out = 1 ma to 300 ma c in = c out = 1 f v in = 2.3 v v out(nom) = 1.2 v figure 38. load regulation vs. temperature v out = 1.5 v figure 39. load regulation vs. temperature v out = 1.8 v junction temperature ( c) 5.0 load regulation (mv) load regulation from i out = 1 ma to 300 ma c in = c out = 1 f v in = 2.3 v v out(nom) = 1.5 v ?40 ?20 0 140 120 100 20 40 60 80 junction temperature ( c) load regulation (mv) load regulation from i out = 1 ma to 300 ma c in = c out = 1 f v in = 2.3 v v out(nom) = 1.8 v 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 ?40 ?20 0 140 120 100 20 40 60 80 figure 40. load regulation vs. temperature v out = 2.85 v figure 41. ground current vs output current junction temperature ( c) 5.0 load regulation (mv) load regulation from i out = 1 ma to 300 ma c in = c out = 1 f v in = 3.35 v v out(nom) = 1.5 v ?40 ?20 0 140 120 100 20 40 60 80 output current (ma) ground current ( a) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 200 t a = 125 c c in = c out = 1 f v in = v out(nom) + 0.5 v t a = 25 c t a = ?40 c 180 160 140 120 100 80 60 40 20 0 012 10 9 8 34567
ncp717 www. onsemi.com 11 figure 42. ground current vs. temperature figure 43. stability vs. output capacitor esr figure 44. psrr vs. frequency v out = 1.5 v figure 45. psrr vs. frequency v out = 1.85 v junction temperature ( c) 500 ?40 ?20 0 140 120 100 20 40 60 80 ground current ( a) c in = c out = 1 f v in = v out(nom) + 0.5 v or 2.3 v i out = 300 ma v out(nom) = 1.5 v v out(nom) = 1.85 v v out(nom) = 3.3 v output current (ma) 100 capacitor esr ( ) 0 10 1 0.1 0.01 100 200 300 unstable operation stable operation v out = 1.2 v v out = 3.3 v frequency (hz) 90 10 psrr (db) 80 70 60 50 40 30 20 10 0 100 1k 10k 100k 1m 10m c out = 1 f c in = none, v in = 2.0 v 50 mv ac v out(nom) = 1.5 v i out = 1 ma i out = 10 ma i out = 150 ma frequency (hz) 10 100 1k 10k 100k 1m 10m 90 psrr (db) 80 70 60 50 40 30 20 10 0 100 i out = 150 ma i out = 10 ma i out = 1 ma c out = 1 f c in = none, v in = 2.35 v 50 mv ac v out(nom) = 1.85 v 450 400 350 300 250 200 v out(nom) = 1.2 v figure 46. psrr vs. frequency v out = 3.0 v figure 47. psrr vs. frequency v out = 3.1 v frequency (hz) 10 100 1k 10k 100k 1m 10m 90 psrr (db) 80 70 60 50 40 30 20 10 0 100 i out = 150 ma i out = 10 ma i out = 1 ma c out = 1 f c in = none, v in = 3.5 v 50 mv ac v out(nom) = 3.0 v frequency (hz) 10 100 1k 10k 100k 1m 10m 90 psrr (db) 80 70 60 50 40 30 20 10 0 i out = 150 ma i out = 1 ma i out = 10 ma c out = 1 f c in = none, v in = 3.6 v 50 mv ac v out(nom) = 3.1 v
ncp717 www. onsemi.com 12 figure 48. output noise density vs. frequency v out = 1.5 v figure 49. output noise density vs. frequency v out = 3.1 v figure 50. enable input current vs. enable voltage figure 51. enable threshold voltage vs. temperature frequency (hz) 10 100 1k 10k 100k 1m output voltage noise ( v/rthz) 1.000 0.100 0.010 0.001 i out = 300 ma i out = 10 ma i out = 1 ma c in = c out = 1 f v in = 2.5 v v out = 1.5 v mlcc, x7r 1206 size frequency (hz) 10 100 1k 10k 100k 1m output voltage noise ( v/rthz) 1.000 0.100 0.010 0.001 c in = c out = 1 f v in = 3.6 v v out = 3.1 v mlcc, x7r 1206 size i out = 10 ma i out = 1 ma i out = 300 ma enable voltage (v) 0 0.5 1 3.5 4.5 5 5.5 enable current ( a) 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 4 3 1.5 2 2.5 t a = 125 c t a = 25 c t a = ?40 c c in = c out = 1 f v in = 2 v v out(nom) = 1.5 v enable current ( a) junction temperature ( c) ?40 ?20 100 120 140 0.9 80 60 02040 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 v in = 2 v c in = c out = 1 f v out(nom) = 1.5 v v en = low to high v en = high to low 10.000 10.000 figure 52. shutdown current vs. temperature figure 53. v out turn?on time vs. temperature shutdown current ( a) junction temperature ( c) ?40 ?20 100 120 140 0.2 80 60 02040 0.16 0.12 0.08 0.04 0 c in = c out = 1 f v in = v out(nom) + 0.5 v v en = 0 v v out turn?on time ( s) junction temperature ( c) ?40 ?20 100 120 140 300 80 60 02040 280 260 240 220 200 180 160 140 120 100 c in = c out = 1 f v in = v out(nom) + 0.5 v v en = step from 0 v to 1 v / 1 s v out = 3.3 v v out = 1.5 v
ncp717 www. onsemi.com 13 applications information the ncp717 is a high performance, small package size, 300 ma ldo voltage regulator. this device delivers very good noise and dynamic performance. thanks to its adaptive ground current feature the device consumes only 25 a of quiescent current at no?load condition. the regulator features very?low noise of 22 vrms, psrr of typ. 70 db at 1 khz and very good load/line transient response. the device is an ideal choice for space constrained portable applications. a logic en input provides on/off control of the output voltage. when the en is low the device consumes as low as typ. 10 na from the in pin. the device is fully protected in case of output overload, output short circuit condition and overheating, assuring a very robust design. input capacitor selection (c in ) it is recommended to connect a minimum of 1 f ceramic x5r or x7r capacitor close to the in pin of the device. larger input capacitors may be necessary if fast and large load transients are encountered in the application. there is no requirement for the min./max. esr of the input capacitor but it is recommended to use ceramic capacitors for their low esr and esl. output capacitor selection (c out ) the ncp717 is designed to be stable with small 1.0 f and larger ceramic capacitors on the output. the minimum effective output capacitance for which the ldo remains stable is 100 nf. the safety mar gin is provided to account for capacitance variations due to dc bias voltage, temperature, initial tolerance. there is no requirement for the minimum value of equivalent series resistance (esr) for the c out but the maximum value of esr should be less than 700 m . larger output capacitors could be used to improve the load transient response or high frequency psrr characteristics. it is not recommended to use tantalum capacitors on the output due to their large esr. the equivalent series resistance of tantalum capacitors is also strongly dependent on the temperature, increasing at low temperature. the tantalum capacitors are generally more costly than ceramic capacitors. no?load operation the regulator remains stable and regulates the output voltage properly within the 2% tolerance limits even with no external load applied to the output. enable operation the ncp717 uses the en pin to enable/disable its output and to control the active discharge function. if the en pin voltage is < 0.4 v the device is guaranteed to be disabled. the pass transistor is turned off so that there is virtually no current flow between the in and out. in case of the option equipped with active discharge ? the active discharge transistor is turned?on and the output voltage v out is pulled to gnd through a 1.2 k resistor (a version) or 120 (c version). in the disable state the device consumes as low as typ. 10 na from the v in . if the en pin voltage > 0.9 v the device is guaranteed to be enabled. the ncp717 regulates the output voltage and the active discharge transistor is turned?off. the en pin has an internal pull?down current source with typ. value of 180 na which assures that the device is turned?off when the en pin is not connected. a build in 56 mv of hysteresis and deglitch time in the en block prevents from periodic on/off oscillations that can occur due to noise on en line. in the case that the en function isn?t required the en pin should be tied directly to in. reverse current the pmos pass transistor has an inherent body diode which will be forward biased in the case that v out > v in . due to this fact in cases where the extended reverse current condition is anticipated the device may require additional external protection. output current limit output current is internally limited within the ic to a typical 379 ma. the ncp717 will source this amount of current measured with the output voltage 100 mv lower than the nominal v out . if the output voltage is directly shorted to ground (v out = 0 v), the short circuit protection will limit the output current to 390 ma (typ). the current limit and short circuit protection will work properly up to v in =5.5 v at t a = 25 c. there is no limitation for the short circuit duration. thermal shutdown when the die temperature exceeds the thermal shutdown threshold (tsd ? 160 c typical), thermal shutdown event is detected and the device is disabled. the ic will remain in this state until the die temperature decreases below the thermal shutdown reset threshold (tsdu ? 140 c typical). once the ic temperature falls below the 140 c the ldo is enabled again. the thermal shutdown feature provides protection from a catastrophic device failure due to accidental overheating. this protection is not intended to be used as a substitute for proper heat sinking. power dissipation as power dissipated in the ncp717 increases, it might become necessary to provide some thermal relief. the maximum power dissipation supported by the device is dependent upon board design and layout. mounting pad configuration on the pcb, the board material, and the ambient temperature affect the rate of junction temperature rise for the part. the maximum power dissipation the ncp717 can handle is given by: p d(max) 125 t a ja (eq. 1)
ncp717 www. onsemi.com 14 for reliable operation junction temperature should be limited to +125 c. the power dissipated by the ncp717 for given application conditions can be calculated as follows: p d(max) v in i gnd i out v in v out (eq. 2) figure 54 shows the typical values of ja vs. heat spreading area. load regulation the ncp717 features very good load regulation of typical 3.6 mv in the 0 ma to 300 ma range. in order to achieve this very good load regulation a special attention to pcb design is necessary. the trace resistance from the out pin to the point of load can easily approach 100 m which will cause a 68 mv voltage drop at full load current, deteriorating the excellent load regulation. line regulation the ic features very good line regulation of 0.4 mv/v measured from v in = v out + 0.5 v to 5.5 v. power supply rejection ratio at low frequencies the psrr is mainly determined by the feedback open?loop gain. at higher frequencies in the range 100 khz ? 10 mhz it can be tuned by the selection of c out capacitor and proper pcb layout. 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 50 100 150 200 250 300 350 400 450 500 0 100 200 300 400 500 600 p d(max) (w) ja ( o c/w) copper area (mm 2 ) theta ja curve with pcb cu thk 1,0 oz theta ja curve with pcb cu thk 2,0 oz power curve with pcb cu thk 2,0 oz power curve with pcb cu thk 1,0 oz figure 54. thermal parameters vs. copper area output noise the ic is designed for very?low output voltage noise. the typical noise performance of 22 v rms makes the device suitable for noise sensitive applications. internal soft start the internal soft?start circuitry will limit the inrush current during the ldo turn?on phase. please refer to typical characteristics section for typical inrush current values. the soft?start function prevents from any output voltage overshoots and assures monotonic ramp?up of the output voltage. pcb layout recommendations to obtain good transient performance and good regulation characteristics place c in and c out capacitors close to the device pins and make the pcb traces wide. in order to minimize the solution size use 0402 capacitors. larger copper area connected to the pins will also improve the device thermal resistance. the actual power dissipation can be calculated by the formula given in equation 2.
ncp717 www. onsemi.com 15 ordering information device voltage option marking marking rotation option package shipping ? ncp717amx150tcg 1.5 v r 0 with active output discharge function r dis =1.2 k xdfn4 (pb-free) 3000 / tape & reel ncp717amx180tcg 1.8 v t 0 ncp717amx185tcg 1.85 v v 0 ncp717amx190tcg 1.9 v 6 0 ncp717amx250tcg 2.5 v t 180 ncp717amx280tcg 2.8 v y 0 ncp717amx285tcg 2.85 v 2 0 ncp717amx300tcg 3.0 v 3 0 ncp717amx310tcg 3.1 v 4 0 ncp717amx330tcg 3.3 v 5 0 ncp717bmx150tcg 1.5 v r 90 without active output discharge function ncp717bmx180tcg 1.8 v t 90 ncp717bmx185tcg 1.85 v v 90 ncp717bmx190tcg 1.9 v 6 90 ncp717bmx250tcg 2.5 v t 270 ncp717bmx280tcg 2.8 v y 90 ncp717bmx285tcg 2.85 v 2 90 NCP717BMX300TCG 3.0 v 3 90 ncp717bmx310tcg 3.1 v 4 90 ncp717bmx330tcg 3.3 v 5 90 ncp717cmx135tcg 1.35 v d 270 with active output discharge function r dis =120 ncp717cmx150tcg 1.5 v l 270 ncp717cmx180tcg 1.8 v p 270 ncp717cmx185tcg 1.85 v q 270 ncp717cmx190tcg 1.9 v r 270 ncp717cmx220tcg 2.2 v a 270 ncp717cmx250tcg 2.5 v v 270 ncp717cmx280tcg 2.8 v y 270 ncp717cmx285tbg 2.85 v 2 270 ncp717cmx285tcg 2.85 v 2 270 ncp717cmx300tcg 3.0 v 3 270 ncp717cmx310tcg 3.1 v 4 270 ncp717cmx320tcg 3.2 v 5 270 ncp717cmx330tcg 3.3 v 6 270 ?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.
ncp717 www. onsemi.com 16 package dimensions xdfn4 1.0x1.0, 0.65p case 711aj issue o notes: 1. dimensioning and tolerancing per asme y14.5m, 1994. 2. controlling dimension: millimeters. 3. dimension b applies to plated terminal and is measured between 0.15 and 0.20 mm from the terminal tips. 4. coplanarity applies to the exposed pad as well as the terminals. a b e d d2 bottom view b e 4x note 3 2x 0.05 c pin one reference top view 2x 0.05 c a a1 (a3) 0.05 c 0.05 c c seating plane side view l 4x 1 2 dim min max millimeters a 0.33 0.43 a1 0.00 0.05 a3 0.10 ref b 0.15 0.25 d 1.00 bsc d2 0.43 0.53 e 1.00 bsc e 0.65 bsc l 0.20 0.30 *for additional information on our pb?free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. mounting footprint* 1.20 0.26 0.24 4x dimensions: millimeters 0.39 recommended package outline note 4 e/2 d2 45 a m 0.05 b c 4 3 0.65 pitch detail a 4x b2 0.02 0.12 l2 0.07 0.17 4x 0.52 2x 0.11 4x l2 4x detail a b2 4x on semiconductor and are registered trademarks of semiconductor co mponents industries, llc (scillc). scillc owns the rights to a numb er of patents, trademarks, copyrights, trade secrets, and other inte llectual property. a listing of scillc?s pr oduct/patent coverage may be accessed at ww w.onsemi.com/site/pdf/patent?marking.pdf. scillc reserves the right to make changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and s pecifically disclaims any and all liability, including without 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 applications and actual performance may vary over time. all operating parameters, including ?typical s? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the right s of others. scillc products are not designed, intended, or a uthorized 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 whic h the failure of the scillc product could create a situation where personal injury or death may occur. should buyer purchase or us e scillc products for any such unintended or unauthorized appli cation, buyer shall indemnify and hold scillc and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unin tended or unauthorized use, even if such claim alleges that scil lc 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 copyrig ht laws and is not for resale in any manner. p ublication 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?5817?1050 ncp717/d bluetooth is a registered trademark of bluetooth sig. zigbee is a registered trademark of zigbee alliance. 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 loc al sales representative

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