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? semiconductor components industries, llc, 2011 may, 2011 ? rev. 0 1 publication order number: ncp4589/d ncp4589 300 ma, tri-mode, ldo linear voltage regulator the ncp4589 is a cmos 300 ma ldo which switches to a low power mode under light current loads. the device automatically switches back to a fast response mode as the output load increases above 3 ma (typ.). the device can be placed in permanent fast mode through a mode select pin. the family is available in a variety of packages: sc ? 70, sot23 and a small, ultra thin 1.2 x 1.2 x 0.4 mm xdfn. features ? operating input voltage range: 1.4 v to 5.25 v ? output voltage range: 0.8 to 4.0 v (available in 0.1 v steps) ? supply current: low power mode ? 1.0 a at v out < 1.85 v fast mode ? 55 a standby mode ? 0.1 a ? dropout voltage: 230 mv typ. at i out = 300 ma, v out = 2.8 v ? 1% output voltage accuracy (v out > 2 v, t j = 25 c) ? high psrr: 70 db at 1 khz (fast response mode) ? line regulation 0.02%/v typ. ? current fold back protection ? stable with ceramic capacitors ? available in 1.2x1.2 xdfn, sc ? 70 and sot23 package ? these are pb ? free devices typical applications ? battery powered equipments ? portable communication equipments ? cameras, image sensors and camcorders vin vout ce gnd c1 c2 1 vin vout ncp4589 ae 1 figure 1. typical application schematic http://onsemi.com see detailed ordering and shipping information in the package dimensions section on p age 27 of this data sheet. ordering information sc ? 70 case 419a xxxx = specific device code mm = date code marking diagrams xdfn6 case 711aa xx mm xxx xmm sot ? 23 ? 5 case 1212 xxx mm
ncp4589 http://onsemi.com 2 current limit vin gnd vref ce vout ae ncp4589hxxxx current limit vin gnd vref ce vout ae ncp4589dxxxx figure 2. simplified schematic block diagram pin function description pin no. xdfn pin no. sc ? 70 pin no. sot23 pin name description 4 4 1 vin input pin 2 2 2 gnd ground 3 5 3 ce chip enable pin 6 3 5 vout output pin 1 1 4 ae auto eco pin 5 ? ? nc no connection absolute maximum ratings rating symbol value unit input voltage (note 1) v in 6.0 v output voltage v out ? 0.3 to v in + 0.3 v chip enable input v ce ? 0.3 to 6.0 v auto eco input v ae ? 0.3 to 6.0 v output current i out 400 ma power dissipation xdfn p d 400 mw power dissipation sc70 380 power dissipation sot23 420 junction temperature t j ? 40 to 150 c storage temperature t stg ? 55 to 125 c operation temperature t a ? 40 to 85 c esd capability, human body model (note 2) esd hbm 2000 v esd capability, machine model (note 2) esd m m 200 v 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. 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 aec ? q100 ? 002 (eia/jesd22 ? a114) esd machine model tested per aec ? q100 ? 003 (eia/jesd22 ? a115) latchup current maximum rating tested per jedec standard: jesd78.
ncp4589 http://onsemi.com 3 thermal characteristics rating symbol value unit thermal characteristics, xdfn thermal resistance, junction ? to ? air r ja 250 c/w thermal characteristics, sot23 thermal resistance, junction ? to ? air r ja 238 c/w thermal characteristics, sc ? 70 thermal resistance, junction ? to ? air r ja 263 c/w electrical characteristics ? 40 c t a 85 c; v in = v out(nom) + 1 v; i out = 1 ma; c in = c out = 1 f; unless otherwise noted. typical values are at t a = +25 c. parameter test conditions symbol min typ max unit operating input voltage (note no tag) v in 1.4 5.25 v output voltage (fast mode) t a = +25 c, i out = 5 ma v out > 2 v v out x0.99 x1.01 v v out 2 v ? 20 20 mv ? 40 c t a 85 c, i out = 5 ma v out > 2 v x0.975 x1.015 v v out 2 v ? 50 30 mv output voltage temp. coefficient t a = ? 40 to 85 c 50 ppm/ c line regulation v in = v out + 0.5 v to 5 v v in 1.4 v i out = 1 ma, (low power mode) line reg 0.50 %/v i out = 10 ma, (fast mode) 0.02 0.20 load regulation i out = 1 ma to 10 ma v out > 2.0 v line reg ? 1.0 1.0 % v out 2.0 v ? 20 20 mv i out = 10 ma to 300 ma 35 80 mv dropout voltage i out = 300 ma 0.8 v v out < 0.9 v v do 0.62 0.85 v 0.9 v v out < 1.0 v 0.55 0.78 1.0 v v out < 1.5 v 0.48 0.70 1.5 v v out < 2.6 v 0.34 0.50 2.6 v v out < 4.0 v 0.23 0.35 output current i out 300 ma short current limit v out = 0 v i sc 50 ma quiescent current i out = 0 ma, low power mode (note 3) v out 1.85 v i q 1.0 4.0 a v out > 1.85 v 1.5 4.0 supply current i out = 10 ma, fast mode i gnd 55 a standby current v ce = 0 v, t a = 25 c i stb 0.1 1 a fast mode switch ? over current i out = light to heavy load i outh 8.0 ma low power switch ? over current i out = heavy to light load i outl 1.0 2.0 ma ce pin threshold voltage ce input voltage ?h? v ceh 1.0 v ce input voltage ?l? v cel 0.4 ce pull down current i cepd 0.1 a ae pin threshold voltage ae input voltage ?h? v aeh 1.0 v ae input voltage ?l? v ael 0.4 3. the value of supply current is excluding the pull ? down constant current of ce and ae pin
ncp4589 http://onsemi.com 4 electrical characteristics ? 40 c t a 85 c; v in = v out(nom) + 1 v; i out = 1 ma; c in = c out = 1 f; unless otherwise noted. typical values are at t a = +25 c. parameter unit max typ min symbol test conditions ae pull down current i aepd 0.1 a power supply rejection ratio v in = v out + 1 v or 2.2 v whichever is higher, v in = 0.2 v pk ? pk , i out = 30 ma, f = 1 khz, fast mode psrr 70 db output noise voltage v out = 1.0 v, i out = 30 ma, f = 10 hz to 100 khz v n 90 v rms low output n ? channel tr. on resistance v in = 4 v, v ce = 0 v r low 50 3. the value of supply current is excluding the pull ? down constant current of ce and ae pin
ncp4589 http://onsemi.com 5 typical characteristics 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 5.25 v 3.8 v 2.8 v 1.8 v 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 3.8 v 5.25 v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.3 v 5.25 v 0.0 0.1 0.2 0.3 0.4 0.5 0.6 25 c t j = 85 c 0.0 0.1 0.2 0.3 0.4 0.5 0.6 figure 3. output voltage vs. output current 1.0 v version (t j = 25 c) 0 100 200 300 400 500 i out , output current (ma) v out (v) v out (v) figure 4. output voltage vs. output current 1.2 v version (t j = 25 c) i out , output current (ma) figure 5. output voltage vs. output current 1.8 v version (t j = 25 c) i out , output current (ma) v out (v) 0 100 200 300 400 500 600 700 0 100 200 300 400 500 600 700 600 figure 6. output voltage vs. output current 3.3 v version (t j = 25 c) i out , output current (ma) v out (v) 0 100 200 300 400 500 600 v do (v) v do (v) figure 7. dropout voltage vs. output current 1.0 v version i out , output current (ma) 0 50 100 150 200 250 figure 8. dropout voltage vs. output current 1.2 v version i out , output current (ma) v in = 1.8 v 5.25 v 3.8 v 1.4 v 2.8 v v in = 1.6 v v in = 3.8 v v in = 2.8 v ? 40 c 25 c t j = 85 c ? 40 c 300 0 50 100 150 200 250 300
ncp4589 http://onsemi.com 6 typical characteristics 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.0 0.2 0.4 0.6 0.8 1.0 1.2 30 ma 1 ma 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 30 ma 1 ma 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 30 ma 1 ma 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 30 ma 1 ma 25 c t j = 85 c v do (v) v do (v) figure 9. dropout voltage vs. output current 1.8 v version i out , output current (ma) figure 10. dropout voltage vs. output current 3.3 v version i out , output current (ma) ? 40 c 25 c t j = 85 c ? 40 c 0 50 100 150 200 250 300 0 50 100 150 200 250 300 figure 11. output voltage vs. input voltage, 1.0 v version v in , input voltage (v) v out (v) 0123456 figure 12. output voltage vs. input voltage, 1.2 v version v in , input voltage (v) v out (v) 0123456 figure 13. output voltage vs. input voltage, 1.8 v version v in , input voltage (v) v out (v) 0123456 figure 14. output voltage vs. input voltage, 3.3 v version v in , input voltage (v) v out (v) 0123456 i out = 50 ma i out = 50 ma i out = 50 ma i out = 50 ma
ncp4589 http://onsemi.com 7 typical characteristics figure 15. output voltage vs. temperature, 1.0 v version 0.94 0.96 0.98 1.00 1.02 1.04 ? 40 ? 200 20406080 t j , junction temperature ( c) v out (v) v in = 2.0 v 1.14 1.16 1.18 1.20 1.22 1.24 figure 16. output voltage vs. temperature, 1.2 v version v out (v) t j , junction temperature ( c) v in = 2.2 v figure 17. output voltage vs. temperature, 1.8 v version figure 18. supply current vs. input voltage, 3.3 v version ? 40 ? 200 20406080 1.74 1.76 1.78 1.80 1.82 1.84 ? 40 ? 200 20406080 t j , junction temperature ( c) v out (v) v in = 2.8 v 012345 i gnd ( a) v in , input voltage (v) 012345 v in , input voltage (v) i gnd ( a) figure 19. supply current vs. input voltage, 1.0 v version 3.24 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 3.33 3.34 ? 40 ? 200 20406080 t j , junction temperature ( c) v out (v) v in = 4.3 v 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 0 i out = 10 ma i out = 10 ma i out = 0 ma i out = 0 ma figure 20. supply current vs. input voltage, 1.2 v version
ncp4589 http://onsemi.com 8 typical characteristics figure 21. supply current vs. input voltage, 1.8 v version figure 22. supply current vs. input voltage, 3.3 v version figure 23. supply current vs. output current, 1.0 v version figure 24. supply current vs. output current, 1.2 v version 012345 i gnd ( a) v in , input voltage (v) 012345 v in , input voltage (v) i gnd ( a) figure 25. supply current vs. output current, 1.8 v version 10 20 30 40 50 60 70 0 10 20 30 40 50 60 70 0 i out = 10 ma i out = 10 ma i out = 0 ma i out = 0 ma figure 26. supply current vs. output current, 3.3 v version i gnd ( a) i gnd ( a) i gnd ( a) i gnd ( a) 0.1 0 20 40 60 80 100 120 0 20 40 60 80 100 120 0 20 40 60 80 100 120 0 20 40 60 80 100 120 1 10 100 1000 0.1 1 10 100 1000 0.1 1 10 100 1000 0.1 1 10 100 1000 i out , output current (ma) i out , output current (ma) i out , output current (ma) i out , output current (ma) v in = 2.0 v ae = 0 v light to heavy load heavy to light load v in = 2.2 v ae = 0 v light to heavy load heavy to light load v in = 4.3 v ae = 0 v light to heavy load heavy to light load v in = 2.8 v ae = 0 v light to heavy load heavy to light load
ncp4589 http://onsemi.com 9 typical characteristics 0.0 0.5 1.0 1.5 2.0 2.5 3.0 ? 40 ? 20 0 20 40 60 80 figure 27. supply current vs. temperature, 1.0 v version i in ( a) t j , junction temperature ( c) ? 40 ? 200 20406080 t j , junction temperature ( c) i in ( a) figure 28. supply current vs. temperature, 1.2 v version ? 40 ? 20 0 20 40 60 80 figure 29. supply current vs. temperature, 1.8 v version t j , junction temperature ( c) figure 30. supply current vs. temperature, 3.3 v version figure 31. supply current vs. temperature, 1.0 v version i in ( a) figure 32. supply current vs. temperature, 1.2 v version v in = 2.0 v ae = 0 v v in = 2.2 v ae = 0 v v in = 4.3 v ae = 0 v v in = 2.8 v ae = 0 v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 ? 40 ? 200 20406080 t j , junction temperature ( c) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 i in ( a) 25 30 35 40 45 50 55 ? 40 ? 20 0 20 40 60 80 t j , junction temperature ( c) ? 40 ? 200 20406080 t j , junction temperature ( c) i in ( a) i in ( a) v in = 2.0 v ae = 2.0 v v in = 2.2 v ae = 2.2 v 25 30 35 40 45 50 55
ncp4589 http://onsemi.com 10 typical characteristics figure 33. supply current vs. temperature, 1.8 v version figure 34. supply current vs. temperature, 3.3 v version figure 35. psrr, 1.0 v version, v in = 2.2 v figure 36. psrr, 1.2 v version, v in = 2.2 v figure 37. psrr, 1.8 v version, v in = 3.8 v figure 38. psrr, 3.3 v version, v in = 4.3 v 25 30 35 40 45 50 55 ? 40 ? 20 0 20 40 60 80 t j , junction temperature ( c) ? 40 ? 200 20406080 t j , junction temperature ( c) i in ( a) i in ( a) v in = 2.8 v ae = 2.8 v v in = 4.3 v ae = 4.3 v 25 30 35 40 45 50 55 0.1 1 10 100 1000 psrr (db) frequency (khz) 100 ma i out = 1 ma ae = high 30 ma 0 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 100 0 frequency (khz) psrr (db) 0 10 20 30 40 50 60 70 80 90 100 50 ma i out = 1 ma ae = low 0.1 1 10 100 1000 psrr (db) frequency (khz) 0 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 1000 frequency (khz) psrr (db) 0 10 20 30 40 50 60 70 80 90 100 100 ma i out = 1 ma ae = high 30 ma 50 ma i out = 1 ma ae = low 100 ma i out = 1 ma ae = high 30 ma 50 ma i out = 1 ma ae = low 100 ma i out = 1 ma ae = high 30 ma 50 ma i out = 1 ma ae = low
ncp4589 http://onsemi.com 11 typical characteristics 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.01 0.1 1 10 100 1000 figure 39. output voltage noise, 1.0 v version, v in = 2.0 v, i out = 30 ma v n ( v rms / hz ) frequency (khz) 0 10 20 30 40 50 60 0.01 0.1 1 10 100 1000 frequency (khz) figure 40. output voltage noise, 1.2 v version, v in = 2.2 v, i out = 30 ma 0.01 0.1 1 10 100 1000 v n ( v rms / hz ) frequency (khz) figure 41. output voltage noise, 1.8 v version, v in = 2.8 v, i out = 30 ma 0.01 0.1 1 10 100 1000 frequency (khz) v n ( v rms / hz ) v n ( v rms / hz ) figure 42. output voltage noise, 3.3 v version, v in = 4.3 v, i out = 30 ma figure 43. line transients, 1.0 v version, t r = t f = 5 s, i out = 1 ma, ae = 0 v 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 10 20 30 40 50 60 v out (v) t, time (ms) v in (v) 0.94 0.96 0.98 1.00 1.02 1.04 1.06 1.08 2.0 2.5 3.0 3.5 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
ncp4589 http://onsemi.com 12 typical characteristics figure 44. line transients, 1.2 v version, t r = t f = 5 s, i out = 1 ma, ae = 0 v v out (v) t, time ( s) figure 45. line transients, 1.8 v version, t r = t f = 5 s, i out = 1 ma, ae = 0 v v out (v) v in (v) v in (v) t, time ( s) figure 46. line transients, 3.3 v version, t r = t f = 5 s, i out = 1 ma, ae = 0 v v out (v) v in (v) t, time ( s) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 1.14 1.16 1.18 1.20 1.22 1.24 2.2 2.7 3.2 3.7 1.74 1.76 1.78 1.80 1.82 1.84 2.8 3.3 3.8 4.3 3.24 3.26 3.28 3.30 3.32 3.34 3.36 3.8 4.3 4.8 5.3
ncp4589 http://onsemi.com 13 typical characteristics figure 47. line transients, 1.0 v version, t r = t f = 5 s, i out = 30 ma, ae = v in v v out (v) t, time ( s) figure 48. line transients, 1.2 v version, t r = t f = 5 s, i out = 30 ma, ae = v in v v out (v) v in (v) v in (v) t, time ( s) figure 49. line transients, 1.8 v version, t r = t f = 5 s, i out = 30 ma, ae = v in v v out (v) v in (v) t, time ( s) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0.994 0.996 0.998 1.000 1.002 1.004 2.0 2.5 3.0 3.5 1.194 1.196 1.198 1.200 1.202 1.204 2.2 2.7 3.2 3.7 1.794 1.796 1.798 1.800 1.802 1.804 2.8 3.3 3.8 4.3
ncp4589 http://onsemi.com 14 typical characteristics figure 50. line transients, 3.3 v version, t r = t f = 5 s, i out = 30 ma, ae = v in v figure 51. load transients, 1.0 v version, i out = 1 ? 50 ma, t r = t f = 0.5 s, v in = 2.0 v, ae = 0 v 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) figure 52. load transients, 1.0 v version, i out = 1 ? 50 ma, t r = t f = 0.5 s, v in = 2.0 v, ae = v in v 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) v out (v) v in (v) t, time ( s) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 3.294 3.296 3.298 3.300 3.302 3.304 3.8 4.3 4.8 5.3 0.80 0.85 0.90 0.95 1.00 1.05 1.10 0 25 50 75 0.80 0.85 0.90 0.95 1.00 1.05 1.10 0 25 50 75
ncp4589 http://onsemi.com 15 typical characteristics figure 53. load transients, 1.2 v version, i out = 1 ? 50 ma, t r = t f = 0.5 s, v in = 2.2 v, ae = 0 v figure 54. load transients, 1.2 v version, i out = 1 ? 50 ma, t r = t f = 0.5 s, v in = 2.2 v, ae = v in v figure 55. load transients, 1.8 v version, i out = 1 ? 50 ma, t r = t f = 0.5 s, v in = 2.8 v, ae = 0 v 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 1.00 1.05 1.10 1.15 1.20 1.25 1.30 0 25 50 75 1.00 1.05 1.10 1.15 1.20 1.25 1.30 0 25 50 75 1.60 1.65 1.70 1.75 1.80 1.85 1.90 0 25 50 75
ncp4589 http://onsemi.com 16 typical characteristics figure 56. load transients, 1.8 v version, i out = 1 ? 50 ma, t r = t f = 0.5 s, v in = 2.8 v, ae = v in v figure 57. load transients, 3.3 v version, i out = 1 ? 50 ma, t r = t f = 0.5 s, v in = 4.3 v, ae = 0 v figure 58. load transients, 3.3 v version, i out = 1 ? 50 ma, t r = t f = 0.5 s, v in = 4.3 v, ae = v in v 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) v out (v) i out (ma) t, time ( s) 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 1.60 1.65 1.70 1.75 1.80 1.85 1.90 0 25 50 75 3.10 3.15 3.20 3.25 3.30 3.35 3.40 0 25 50 75 0 20 40 60 80 100 120 140 160 180 200 3.15 3.20 3.25 3.30 3.35 3.40 0 25 50 75 3.10
ncp4589 http://onsemi.com 17 typical characteristics figure 59. load transients, 1.0 v version, i out = 1 ? 150 ma, t r = t f = 0.5 s, v in = 2.0 v, ae = 0 v figure 60. load transients, 1.0 v version, i out = 1 ? 150 ma, t r = t f = 0.5 s, v in = 2.0 v, ae = v in v 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) figure 61. load transients, 1.2 v version, i out = 1 ? 150 ma, t r = t f = 0.5 s, v in = 2.2 v, ae = 0 v 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 0.80 0.85 0.90 0.95 1.00 1.05 1.10 0 75 150 225 0.80 0.85 0.90 0.95 1.00 1.05 1.10 0 75 150 225 1.00 1.05 1.10 1.15 1.20 1.25 1.30 0 75 150 225
ncp4589 http://onsemi.com 18 typical characteristics figure 62. load transients, 1.2 v version, i out = 1 ? 150 ma, t r = t f = 0.5 s, v in = 2.2 v, ae = v in v figure 63. load transients, 1.8 v version, i out = 1 ? 150 ma, t r = t f = 0.5 s, v in = 2.8 v, ae = 0 v figure 64. load transients, 1.8 v version, i out = 1 ? 150 ma, t r = t f = 0.5 s, v in = 2.8 v, ae = v in v 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 1.00 1.05 1.10 1.15 1.20 1.25 1.30 0 75 150 225 1.60 1.65 1.70 1.75 1.80 1.85 1.90 0 75 150 225 1.60 1.65 1.70 1.75 1.80 1.85 1.90 0 75 150 225
ncp4589 http://onsemi.com 19 typical characteristics figure 65. load transients, 3.3 v version, i out = 1 ? 150 ma, t r = t f = 0.5 s, v in = 4.3 v, ae = 0 v figure 66. load transients, 3.3 v version, i out = 1 ? 150 ma, t r = t f = 0.5 s, v in = 4.3 v, ae = v in v figure 67. load transients, 1.0 v version, i out = 50 ? 100 ma, t r = t f = 0.5 s, v in = 2.0 v, ae = 0 v 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) v out (v) i out (ma) t, time ( s) 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 0 20 40 60 80 100 120 140 160 180 200 3.10 3.15 3.20 3.25 3.30 3.35 3.40 0 75 150 225 3.10 3.15 3.20 3.25 3.30 3.35 3.40 0 75 150 225 0.96 0.97 0.98 0.99 1.00 1.01 1.02 0 50 100 150
ncp4589 http://onsemi.com 20 typical characteristics figure 68. load transients, 1.2 v version, i out = 50 ? 100 ma, t r = t f = 0.5 s, v in = 2.2 v, ae = v in v figure 69. load transients, 1.8 v version, i out = 50 ? 100 ma, t r = t f = 0.5 s, v in = 2.8 v, ae = v in v figure 70. load transients, 3.3 v version, i out = 50 ? 100 ma, t r = t f = 0.5 s, v in = 4.3 v, ae = v in v 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 0 20 40 60 80 100 120 140 160 180 200 v out (v) i out (ma) t, time ( s) 1.16 1.17 1.18 1.19 1.20 1.21 1.22 0 50 100 150 1.76 1.77 1.78 1.79 1.80 1.81 1.82 0 50 100 150 3.26 3.27 3.28 3.29 3.30 3.31 3.32 0 50 100 150
ncp4589 http://onsemi.com 21 typical characteristics figure 71. ae switch transients, 1.0 v version, v in = 2.0 v, i out = 1 ma figure 72. ae switch transients, 1.0 v version, v in = 2.0 v, i out = 1 ma figure 73. ae switch transients, 1.2 v version, v in = 2.2 v, i out = 1 ma 012345678910 v out (v) v ae (v) t, time (ms) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 v out (v) v ae (v) t, time (ms) 012345678910 v out (v) v ae (v) t, time (ms) 0.96 0.97 0.98 0.99 1.00 1.01 1.02 0 1 2 3 0.96 0.97 0.98 0.99 1.00 1.01 1.02 0 1 2 3 1.16 1.17 1.18 1.19 1.20 1.21 1.22 0.0 1.1 2.2 3.3
ncp4589 http://onsemi.com 22 typical characteristics figure 74. ae switch transients, 1.2 v version, v in = 2.2 v, i out = 1 ma figure 75. ae switch transients, 1.8 v version, v in = 2.8 v, i out = 1 ma figure 76. ae switch transients, 1.8 v version, v in = 2.8 v, i out = 1 ma 012345678910 v out (v) v ae (v) t, time (ms) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 v out (v) v ae (v) t, time (ms) v out (v) v ae (v) t, time (ms) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 1.16 1.17 1.18 1.19 1.20 1.21 1.22 0.0 1.1 2.2 3.3 1.76 1.77 1.78 1.79 1.80 1.81 0.0 1.4 2.8 4.2 1.76 1.77 1.78 1.79 1.80 1.81 0.0 1.4 2.8 4.2
ncp4589 http://onsemi.com 23 typical characteristics figure 77. ae switch transients, 3.3 v version, v in = 4.3 v, i out = 1 ma figure 78. ae switch transients, 3.3 v version, v in = 4.3 v, i out = 1 ma figure 79. start ? up, 1.0 v version, v in = 2.0 v 012345678910 v out (v) v ae (v) t, time (ms) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 v out (v) v ae (v) t, time (ms) 0 20 40 60 80 100 120 140 160 180 200 v out (v) v ce (v) t ( s) i out = 1 ma chip enable i out = 300 ma 3.22 3.24 3.26 3.28 3.30 3.32 0.00 2.15 4.30 6.45 3.22 3.24 3.26 3.28 3.30 3.32 0.00 2.15 4.30 6.45 0.2 0.0 0.2 0.4 0.6 0.8 1.0 0 1 2 3 i out = 50 ma
ncp4589 http://onsemi.com 24 typical characteristics figure 80. start ? up, 1.2 v version, v in = 2.2 v 0 20 40 60 80 100 120 140 160 180 200 v out (v) v ce (v) t ( s) i out = 1 ma chip enable i out = 50 ma figure 81. start ? up, 1.8 v version, v in = 2.8 v 0 20 40 60 80 100 120 140 160 180 200 v out (v) v ce (v) t ( s) i out = 1 ma chip enable i out = 300 ma figure 82. start ? up, 3.3 v version, v in = 4.3 v v out (v) v ce (v) t ( s) i out = 1 ma chip enable i out = 300 ma 0 20 40 60 80 100 120 140 160 180 200 0.5 0.0 0.5 1.0 1.5 2.0 0.0 1.1 2.2 3.3 0.0 1.4 2.8 4.2 0.5 0.0 0.5 1.0 1.5 2.0 1.0 0.0 1.0 2.0 3.0 4.0 0.00 2.15 4.30 6.45 i out = 300 ma i out = 50 ma i out = 50 ma
ncp4589 http://onsemi.com 25 typical characteristics figure 83. shutdown, 1.0 v version d, v in = 2.0 v 0 40 80 120 160 200 240 280 320 360 400 v out (v) v ce (v) t ( s) i out = 1 ma chip enable i out = 300 ma i out = 50 ma figure 84. shutdown, 1.2 v version d, v in = 2.2 v 0 20 40 60 80 100 120 140 160 180 200 i out = 1 ma chip enable i out = 300 ma i out = 50 ma v out (v) v ce (v) t ( s) figure 85. shutdown, 1.8 v version d, v in = 2.8 v 0 20 40 60 80 100 120 140 160 180 200 v out (v) v ce (v) t ( s) i out = 1 ma chip enable i out = 300 ma i out = 50 ma 0.2 0.0 0.2 0.4 0.6 0.8 1.0 0 1 2 3 0.5 0.0 0.5 1.0 1.5 2.0 0.0 1.1 2.2 3.3 0.0 1.4 2.8 4.2 0.5 0.0 0.5 1.0 1.5 2.0
ncp4589 http://onsemi.com 26 typical characteristics figure 86. shutdown, 3.3 v version d, v in = 4.3 v 0 20 40 60 80 100 120 140 160 180 200 v out (v) v ce (v) t ( s) i out = 1 ma chip enable i out = 300 ma i out = 50 ma 1.0 0.0 1.0 2.0 3.0 4.0 0.00 2.15 4.30 6.45 application information a typical application circuit for ncp4589 series is shown in figure 87. vin vout ce gnd c1 c2 1 vin vout ncp4589 ae 1 figure 87. typical application schematic input decoupling capacitor (c1) a 1 f ceramic input decoupling capacitor should be connected as close as possible to the input and ground pin of the ncp4589. higher values and lower esr improves line transient response. output decoupling capacitor (c2) a 1 f ceramic output decoupling capacitor is sufficient to achieve stable operation of the ic. if tantalum capacitor is used, and its esr is high, the loop oscillation may result. if output capacitor is composed from few ceramic capacitors in parallel, the operation can be unstable. the capacitor should be connected as close as possible to the output and ground pin. larger values and lower esr improves dynamic parameters. enable operation the enable pin ce may be used for turning the regulator on and off. the regulator is switched on when ce pin voltage is above logic high level. the enable pin has internal pull down current source. if enable function is not needed connect ce pin to v in . current limit this regulator includes fold-back type current limit circuit. this type of protection doesn?t limit current up to current capability in normal operation, but when over current occurs, the output voltage and current decrease until the over current condition ends. typical characteristics of this protection type can be observed in the output voltage versus output current graphs shown in the typical characteristics chapter of this datasheet. output discharger the d version includes a transistor between v out and gnd that is used for faster discharging of the output capacitor. this function is activated when the ic goes into disable mode. auto eco and fast mode the ncp4589 has two operation modes that have impact on supply current and transient response at low output current. these two modes can be selected by ae pin. if ae pin is at low level auto eco mode is available. please, see supply current vs. output current charts. thermal as power across the ic 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 also the ambient temperature affect the rate of temperature rise for the part. that is to say, when the device has good thermal
ncp4589 http://onsemi.com 27 conductivity through the pcb, the junction temperature will be relatively low with high power dissipation applications. pcb layout make v in and gnd line sufficient. if their impedance is high, noise pickup or unstable operation may result. connect capacitors c1 and c2 as close as possible to the ic, and make wiring as short as possible. ordering information device nominal output voltage description marking package shipping ? ncp4589dsq12t1g 1.2 v auto discharge d012 sc ? 70 (pb ? free) 3000 / tape & reel ncp4589dsq18t1g 1.8 v auto discharge d018 sc ? 70 (pb ? free) 3000 / tape & reel ncp4589dsq25t1g 2.5 v auto discharge d025 sc ? 70 (pb ? free) 3000 / tape & reel ncp4589dsq30t1g 3.0 v auto discharge d030 sc ? 70 (pb ? free) 3000 / tape & reel ncp4589dsq33t1g 3.3 v auto discharge d033 sc ? 70 (pb ? free) 3000 / tape & reel ncp4589dsn12t1g 1.2 v auto discharge p1e sot ? 23 ? 5 (pb ? free) 3000 / tape & reel ncp4589dsn18t1g 1.8 v auto discharge p1l sot ? 23 ? 5 (pb ? free) 3000 / tape & reel NCP4589DSN25T1G 2.5 v auto discharge p1t sot ? 23 ? 5 (pb ? free) 3000 / tape & reel ncp4589dsn30t1g 3.0 v auto discharge p1y sot ? 23 ? 5 (pb ? free) 3000 / tape & reel ncp4589dsn33t1g 3.3 v auto discharge q1b sot ? 23 ? 5 (pb ? free) 3000 / tape & reel ncp4589dmx12tcg 1.2 v auto discharge 7e xdfn (pb ? free) 5000 / tape & reel ncp4589dmx18tcg 1.8 v auto discharge 7l xdfn (pb ? free) 5000 / tape & reel ncp4589dmx28tcg 2.8 v auto discharge 7w xdfn (pb ? free) 5000 / tape & reel ncp4589dmx30tcg 3.0 v auto discharge 7y xdfn (pb ? free) 5000 / tape & reel ncp4589dmx33tcg 3.3 v auto discharge 8b xdfn (pb ? free) 5000 / tape & reel ?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. note: to order other package and voltage variants, please contact your on semiconductor sales representative.
ncp4589 http://onsemi.com 28 package dimensions notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. 419a ? 01 obsolete. new standard 419a ? 02. 4. dimensions a and b do not include mold flash, protrusions, or gate burrs. dim a min max min max millimeters 1.80 2.20 0.071 0.087 inches b 1.15 1.35 0.045 0.053 c 0.80 1.10 0.031 0.043 d 0.10 0.30 0.004 0.012 g 0.65 bsc 0.026 bsc h --- 0.10 --- 0.004 j 0.10 0.25 0.004 0.010 k 0.10 0.30 0.004 0.012 n 0.20 ref 0.008 ref s 2.00 2.20 0.079 0.087 b 0.2 (0.008) mm 12 3 4 5 a g s d 5 pl h c n j k ? b ? sc ? 88a (sc ? 70 ? 5/sot ? 353) case 419a ? 02 issue k
ncp4589 http://onsemi.com 29 package dimensions 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 0.25mm from terminal tips. 4. coplanarity applies to all of the terminals. a seating plane d e 0.05 c a a1 2x 2x 0.05 c xdfn6 1.2x1.2, 0.4p case 711aa ? 01 issue o dim a min max millimeters --- 0.40 a1 0.00 0.05 b 0.13 0.23 d e e l pin one reference 0.05 c 0.05 c note 3 l e b 3 6 6x 1 4 mounting footprint* 1.20 bsc 1.20 bsc 0.40 bsc 0.37 0.48 bottom view c dimensions: millimeters 0.66 6x 0.22 6x 1.50 0.40 pitch *for additional information on our pb ? free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. c 0.20 0.30 top view b side view note 4 recommended c 6x a m 0.05 b c package outline
ncp4589 http://onsemi.com 30 package dimensions dim min max millimeters a1 0.00 0.10 a2 1.00 1.30 b 0.30 0.50 c 0.10 0.25 d 2.80 3.00 e 2.50 3.10 e1 1.50 1.80 e 0.95 bsc e1 1.90 bsc l l1 0.45 0.75 notes: 1. dimensions are in millimeters. 2. interpret dimensions and tolerances per asme y14.5m, 1994. 3. datum c is a seating plane. a 1 5 23 4 d e1 b l1 e e e1 c m 0.10 c s b s a b 5x a2 a1 s 0.05 c l 0.20 --- sot ? 23 ? 5 case 1212 ? 01 issue o 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. 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 ncp4589/d 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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