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1/12 december 2002 n very low dropout voltage (typ. 0.4 at 3a) n guaranteed output current up to 3a n fixed voltage with 1% tollerance at 25c n internal current and thermal limit description the ld29300 is a high current, high accuracy, low-dropout voltage regulators series. these regulators feature 400mv dropout voltages and very low ground current. designed for high current loads, these devices also find applications in lower current, extremely low dropout-critical systems, where their tiny dropout voltage and ground current values are important attributes. typical application are in power supply switching post regulation, series power supply for monitor, series power supply for vcrs and tvs, computer systems and battery powered systems. ld29300 series 3a, very low drop voltage regulator schematic diagram to-220 d 2 pak
ld29300 series 2/12 ordering codes (*) available in tape & reel with the suffix "r" for fixed version and "-r" for adjustable version. absolute maximum ratings (*) above 14v the device is automatically in shut-down. absolute maximum ratings are those beyond which damage to the device may occur. functional operation under these condition is not im- plied. thermal data connection diagram (top view) pin description to-220 d 2 pak (*) tolerance output voltage ld29300v15 ld29300d2t15 1% 1.5 v ld29300v18 ld29300d2t18 1% 1.8 v ld29300v25 ld29300d2t25 1% 2.5 v ld29300v33 ld29300d2t33 1% 3.3 v ld29300v50 ld29300d2t50 1% 5.0 v ld29300v80 ld29300d2t80 1% 8.0 v ld29300v90 LD29300D2T90 1% 9.0 v symbol parameter2 value unit v i dc input voltage 30 (*) v i o output current internally limited ma p d power dissipation internally limited mw t stg storage temperature range -55 to 150 c t op operating junction temperature range -40 to 125 c symbol parameter to-220 d 2 pak unit r thj-case thermal resistance junction-case 3 3 c/w r thj-amb thermal resistance junction-ambient 50 60 c/w to-220 d 2 pak pln n symbol name and function 1 1 input 2 2 gnd 3 3 output
ld29300 series 3/12 application circuit electrical characteristics of ld29300#15 (i o = 10ma, t j =25c,v i =3.5v,c i = 330nf, c o =10 m f) electrical characteristics of ld29300#18 (i o = 10ma, t j =25c,v i =3.8v,c i = 330nf, c o =10 m f) note 1: dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with v o +1v applied to v i . symbol parameter test conditions min. typ. max. unit v i minimum operating input voltage i o = 10ma to 3a t j = -40 to 125c 2.5 v v o output voltage i o = 10ma to 3a, v i = 3 to 5v t j = -40 to 125c 1.485 1.5 1.515 v 1.47 1.53 d v o load regulation i o = 10ma to 3a 0.2 1.0 % d v o line regulation v i = 3 to 14v 0.06 0.5 % svr supply voltage rejection f = 120 hz, v i = 3.5 1v, i o = 1.5a 65 75 db i q quiescent current i o = 1.5a, t j = -40 to 125c 20 50 ma i o = 3a, t j = -40 to 125c 45 100 i sc short circuit current r l = 0 4.5 a en output noise voltage b p = 10hz to 100khzi o = 100ma 60 v rms symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10ma to 3a, v i = 3 to 5v t j = -40 to 125c 1.782 1.8 1.818 v 1.764 1.836 d v o load regulation i o = 10ma to 3a 0.2 1.0 % d v o line regulation v i = 3 to 14v 0.06 0.5 % svr supply voltage rejection f = 120 hz, v i = 3.8 1v, i o = 1.5a 62 72 db v drop dropout voltage i o = 500ma, t j = -40 to 125c (note 1) 0.1 v i o = 1.5a, t j = -40 to 125c (note 1) 0.2 i o = 3a, t j = -40 to 125c (note 1) 0.4 0.7 i q quiescent current i o = 1.5a, t j = -40 to 125c 20 50 ma i o = 3a, t j = -40 to 125c 45 100 i sc short circuit current r l = 0 4.5 a en output noise voltage b p = 10hz to 100khzi o = 100ma 60 v rms
ld29300 series 4/12 electrical characteristics of ld29300#25 (i o = 10ma, t j =25c,v i =4.5v,c i = 330nf, c o =10 m f) note 1: dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with v o +1v applied to v i . electrical characteristics of ld29300#33 (i o = 10ma, t j =25c,v i =5.3v,c i = 330nf, c o =10 m f) note 1: dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with v o +1v applied to v i . symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10ma to 3a, v i = 3.5 to 5.5v t j = -40 to 125c 2.475 2.5 2.525 v 2.45 2.55 d v o load regulation i o = 10ma to 3a 0.2 1.0 % d v o line regulation v i = 3.5 to 14v 0.06 0.5 % svr supply voltage rejection f = 120 hz, v i = 4.5 1v, i o = 1.5a 55 70 db v drop dropout voltage i o = 500ma, t j = -40 to 125c (note 1) 0.1 v i o = 1.5a, t j = -40 to 125c (note 1) 0.2 i o = 3a, t j = -40 to 125c (note 1) 0.4 0.7 i q quiescent current i o = 1.5a, t j = -40 to 125c 20 50 ma i o = 3a, t j = -40 to 125c 45 100 i sc short circuit current r l = 0 4.5 a en output noise voltage b p = 10hz to 100khzi o = 100ma 100 v rms symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10ma to 3a, v i = 4.3 to 6.3v t j = -40 to 125c 3.267 3.3 3.333 v 3.234 3.366 d v o load regulation i o = 10ma to 3a 0.2 1.0 % d v o line regulation v i = 4.3 to 14v 0.06 0.5 % svr supply voltage rejection f = 120 hz, v i = 5.3 1v, i o = 1.5a 52 67 db v drop dropout voltage i o = 500ma, t j = -40 to 125c (note 1) 0.1 v i o = 1.5a, t j = -40 to 125c (note 1) 0.2 i o = 3a, t j = -40 to 125c (note 1) 0.4 0.7 i q quiescent current i o = 1.5a, t j = -40 to 125c 20 50 ma i o = 3a, t j = -40 to 125c 45 100 i sc short circuit current r l = 0 4.5 a en output noise voltage b p = 10hz to 100khzi o = 100ma 132 v rms
ld29300 series 5/12 electrical characteristics of ld29300#50 (i o = 10ma, t j =25c,v i =5.3v,c i = 330nf, c o =10 m f) note 1: dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with v o +1v applied to v i . electrical characteristics of ld29300#80 (i o = 10ma, t j =25c,v i = 10v, c i = 330nf, c o =10 m f) note 1: dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with v o +1v applied to v i . symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10ma to 3a, v i = 6 to 8v t j = -40 to 125c 4.95 5 5.05 v 4.9 5.1 d v o load regulation i o = 10ma to 3a 0.2 1.0 % d v o line regulation v i = 6 to 14v 0.06 0.5 % svr supply voltage rejection f = 120 hz, v i =7 1v, i o =1.5a 49 64 db v drop dropout voltage i o = 500ma, t j = -40 to 125c (note 1) 0.1 v i o = 1.5a, t j = -40 to 125c (note 1) 0.2 i o = 3a, t j = -40 to 125c (note 1) 0.4 0.7 i q quiescent current i o = 1.5a, t j = -40 to 125c 20 50 ma i o = 3a, t j = -40 to 125c 45 100 i sc short circuit current r l = 0 4.5 a en output noise voltage b p = 10hz to 100khzi o = 100ma 200 v rms symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10ma to 3a, v i = 9 to 11v t j = -40 to 125c 7.92 8 8.08 v 7.84 8.16 d v o load regulation i o = 10ma to 3a 0.2 1.0 % d v o line regulation v i = 9 to 14v 0.06 0.5 % svr supply voltage rejection f = 120 hz, v i =9 1v, i o =1.5a 45 59 db v drop dropout voltage i o = 500ma, t j = -40 to 125c (note 1) 0.1 v i o = 1.5a, t j = -40 to 125c (note 1) 0.2 i o = 3a, t j = -40 to 125c (note 1) 0.4 0.7 i q quiescent current i o = 1.5a, t j = -40 to 125c 20 50 ma i o = 3a, t j = -40 to 125c 45 100 i sc short circuit current r l = 0 4.5 a en output noise voltage b p = 10hz to 100khzi o = 100ma 320 v rms
ld29300 series 6/12 electrical characteristics of ld29300#90 (i o = 10ma, t j =25c,v i = 11v, c i = 330nf, c o =10 m f) note 1: dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with v o +1v applied to v i . symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10ma to 3a, v i =10to12v t j = -40 to 125c 8.91 9 9.09 v 8.82 9.18 d v o load regulation i o = 10ma to 3a 0.2 1.0 % d v o line regulation v i = 10 to 14v 0.06 0.5 % svr supply voltage rejection f = 120 hz, v i =11 1v, i o = 1.5a 45 58 db v drop dropout voltage i o = 500ma, t j = -40 to 125c (note 1) 0.1 v i o = 1.5a, t j = -40 to 125c (note 1) 0.2 i o = 3a, t j = -40 to 125c (note 1) 0.4 0.7 i q quiescent current i o = 1.5a, t j = -40 to 125c 20 50 ma i o = 3a, t j = -40 to 125c 50 100 i sc short circuit current r l = 0 4.5 a en output noise voltage b p = 10hz to 100khzi o = 100ma 360 v rms
ld29300 series 7/12 typical characteristics (i o =10ma,t j = 25c, v i =11v,c i = 330nf, c o =10 m f) figure 1 : output voltage vs temperature figure 2 : dropout voltage vs temperature figure 3 : dropout voltage vs output current figure 4 : quiescent current vs output current figure 5 : quiescent current vs output current figure 6 : quiescent current vs supply voltage
ld29300 series 8/12 figure 7 : quiescent current vs temperature figure 8 : quiescent current vs temperature figure 9 : short circuit current vs temperature figure 10 : supply voltage rejection vs temperature figure 11 : stabilityvsc out figure 12 : line transient v in = 3 . 5t o 5 . 5v , i load = 10 m a , c out = 10 m f
ld29300 series 9/12 figure 13 : load transient v in = 4 .5 v , i out = 10 m a to 3a , c out = 4 7 m f
ld29300 series 10/12 dim. mm. inch min. typ max. min. typ. max. a 4.40 4.60 0.173 0.181 c 1.23 1.32 0.048 0.051 d 2.40 2.72 0.094 0.107 d1 1.27 0.050 e 0.49 0.70 0.019 0.027 f 0.61 0.88 0.024 0.034 f1 1.14 1.70 0.044 0.067 f2 1.14 1.70 0.044 0.067 g 4.95 5.15 0.194 0.203 g1 2.4 2.7 0.094 0.106 h2 10.0 10.40 0.393 0.409 l2 16.4 0.645 l4 13.0 14.0 0.511 0.551 l5 2.65 2.95 0.104 0.116 l6 15.25 15.75 0.600 0.620 l7 6.2 6.6 0.244 0.260 l9 3.5 3.93 0.137 0.154 dia. 3.75 3.85 0.147 0.151 to-220 mechanical dat a p011c
ld29300 series 11/12 dim. mm. inch min. typ max. min. typ. max. a 4.4 4.6 0.173 0.181 a1 2.49 2.69 0.098 0.106 a2 0.03 0.23 0.001 0.009 b 0.7 0.93 0.027 0.036 b2 1.14 1.7 0.044 0.067 c 0.45 0.6 0.017 0.023 c2 1.23 1.36 0.048 0.053 d 8.95 9.35 0.352 0.368 d1 8 0.315 e 10 10.4 0.393 0.409 e1 8.5 0.335 g 4.88 5.28 0.192 0.208 l 15 15.85 0.590 0.624 l2 1.27 1.4 0.050 0.055 l3 1.4 1.75 0.055 0.068 m 2.4 3.2 0.094 0.126 r 0.4 0.016 v2 0? 8? 0? 8? d 2 pak mec hanical data p011p6g
ld29300 series 12/12 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no res ponsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result f rom its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specificati ons mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devi ces or systems without express written approval of stmicroelectronics. ? the st logo is a registered trademark of stmicroelectronics ? 2002 stmicroelectronics - printed in italy - all rights reserved stmicroelectronics group of companies australia - brazil - canada - china - finland - france - germany - hong kong - india - israel - italy - japan - malaysia - malt a - morocco singapore - spain - sweden - switzerland - united kingdom - united states. ? http://www.st.com

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