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| ht73xx low power consumption ldo selection table part no. output voltage tolerance package marking ht7318 1.8v 3% to-92-a to-92-b sot-89-a 73xx-a (for to-92-a) 73xx-b (for to-92-b) 73xx-a (for sot-89) ht7325 2.5v 3% ht7327 2.7v 3% ht7330 3.0v 3% HT7333 3.3v 3% ht7335 3.5v 3% ht7350 5.0v 3% note: xx stands for output voltages rev. 1.10 1 july 30, 2004 features ultra low quiescent current: 4 a (typ.) high input voltage (up to 12v) output voltage: 1.8v, 2.5v, 2.7v, 3.0v, 3.3v, 3.5v, 5.0v output voltage accuracy: tolerance 3% maximum output current: 250ma low dropout voltage low temperature coefficient to-92, sot-89 package applications battery-powered equipment voltage regulator for microprocessor voltage regulator for lan cards wireless communication equipment audio/video equipment general description the ht73xx series is a set of three-terminal, low power, high voltage regulators implemented in cmos technol - ogy. the series features extremely low quiescent cur - rent which is typically 4 a. they allow input voltages as high as 12v. the device provides large current with a significantly small dropout voltage. the ht73xx consists of a high-precision voltage refer - ence, an error correction circuit, and a current limited output driver. they are available with several fixed out - put voltages ranging from 1.8v to 5.0v. cmos technol - ogy ensures low dropout voltage and low current consumption. although designed primarily as fixed volt- age regulators, these devices can be used with external components to generate variable voltages and currents.
block diagram pin assignment absolute maximum ratings supply voltage ...........................v ss 0.3v to v ss +14v storage temperature ........................... 50 cto125 c power consumption (*1) .................................. 500mw operating temperature .......................... 40 cto85 c power consumption (*2) ...................................500mw note: these are stress ratings only. stresses exceeding the range specified under absolute maximum ratings may cause substantial damage to the device. functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil - ity. *1: applied to to-92 *2: applied to sot-89 ht73xx rev. 1.10 2 july 30, 2004 electrical characteristics ht7318, +1.8v output type ta=25 c symbol parameter test conditions min. typ. max. unit v in conditions v out output voltage 2.8v i out =40ma 1.746 1.8 1.854 v i out(max) maximum output current 2.8v v out 1.62v 150 ma v out * load regulation 2.8v 1ma i out 60ma 45 90 mv v drop** dropout voltage i out =40ma 170 mv i ss quiescent current 2.8v no load 48 a line regulation i out =40ma 2.8v v in 12v 0.2 0.3 %/v v in input voltage 12 v temperature coefficient 2.8v i out =40ma 40 c 60ma 45 90 mv v drop** dropout voltage i out =40ma 110 mv i ss quiescent current 3.5v no load 48 a line regulation i out =40ma 3.5v v in 12v 0.2 0.3 %/v v in input voltage 12 v temperature coefficient 3.5v i out =40ma 40 c 80ma 45 90 mv v drop** dropout voltage i out =40ma 100 mv i ss quiescent current 3.7v no load 48 a line regulation i out =40ma 3.7v v in 12v 0.2 0.3 %/v v in input voltage 12 v temperature coefficient 3.7v i out =40ma 40 c i out 80ma 45 90 mv v drop ** dropout voltage i out =40ma 95 mv i ss quiescent current 4v no load 48 a line regulation i out =40ma 4v v in 12v 0.2 0.3 %/v v in input voltage 12 v temperature coefficient 4v i out =40ma 40 c i out 80ma 45 90 mv v drop ** dropout voltage i out =40ma 90 mv i ss quiescent current 4.3v no load 48 a line regulation i out =40ma 4.3v v in 12v 0.2 0.3 %/v v in input voltage 12 v temperature coefficient 4.3v i out =40ma 40 c 80ma 45 90 mv v drop ** dropout voltage i out =40ma 80 mv i ss quiescent current 4.5v no load 48 a line regulation i out =40ma 4.5v v in 12v 0.2 0.3 %/v v in input voltage 12 v temperature coefficient 4.5v i out =80ma 40 c i out 100ma 45 90 mv v drop** dropout voltage i out =40ma 60 mv i ss quiescent current 6v no load 48 a line regulation i out =40ma 6v v in 12v 0.2 0.3 %/v v in input voltage 12 v temperature coefficient 6v i out =80ma 40 c package information 3-pin to-92 outline dimensions symbol dimensions in mil min. nom. max. a 170 200 b 170 200 c 500 d11 20 e90 110 f45 55 g45 65 h 130 160 i8 18 4 6 ht73xx rev. 1.10 6 july 30, 2004 3-pin sot-89 outline dimensions symbol dimensions in mil min. nom. max. a 173 181 b64 72 c90 102 d35 47 e 155 167 f14 19 g17 22 h 59 i55 63 j14 17 ht73xx rev. 1.10 7 july 30, 2004 ! product tape and reel specifications to-92 reel dimensions (unit: mm) ht73xx rev. 1.10 8 july 30, 2004 " # $ % & ' ( $ % & ' ( ) * # # ) + ) sot-89 reel dimensions sot-89 symbol description dimensions in mm a reel outer diameter 180 1.0 b reel inner diameter 62 1.5 c spindle hole diameter 12.75+0.15 d key slit width 1.9 0.15 t1 space between flange 12.4+0.2 t2 reel thickness 17 0.4 ht73xx rev. 1.10 9 july 30, 2004 to-92 carrier tape dimensions to-92 symbol description dimensions in mm i1 taped lead length (2.5) p component pitch 12.7 1.0 p 0 perforation pitch 12.7 0.3 p 2 component to perforation (length direction) 6.35 0.4 f 1 lead spread 2.5+0.4 0.1 f 2 lead spread 2.5+0.4 0.1 h component alignment 0 0.1 w carrier tape width 18.0+1.0 0.5 w 0 hold-down tape width 6.0 0.5 w 1 perforation position 9.0 0.5 w 2 hold-down tape position (0.5) h 0 lead clinch height 16.0 0.5 h 1 component height less than 24.7 d 0 perforation diameter 4.0 0.2 t taped lead thickness 0.7 0.2 h component base height 19.0 0.5 note: thickness less than 0.38 0.05mm~0.5mm p0 accumulated pitch tolerance: 1mm/20pitches. ( ) bracketed figures are for consultation only ht73xx rev. 1.10 10 july 30, 2004 $ $ , , , , $ - sot-89 carrier tape dimensions sot-89 symbol description dimensions in mm w carrier tape width 12.0+0.3 0.1 p cavity pitch 8.0 0.1 e perforation position 1.75 0.1 f cavity to perforation (width direction) 5.5 0.05 d perforation diameter 1.5+0.1 d1 cavity hole diameter 1.5+0.1 p0 perforation pitch 4.0 0.1 p1 cavity to perforation (length direction) 2.0 0.10 a0 cavity length 4.8 0.1 b0 cavity width 4.5 0.1 k0 cavity depth 1.8 0.1 t carrier tape thickness 0.30 0.013 c cover tape width 9.3 ht73xx rev. 1.10 11 july 30, 2004 $ , $ $ . ht73xx rev. 1.10 12 july 30, 2004 copyright 2004 by holtek semiconductor inc. the information appearing in this data sheet is believed to be accurate at the time of publication. however, holtek as - sumes no responsibility arising from the use of the specifications described. the applications mentioned herein are used solely for the purpose of illustration and holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. holtek s products are not authorized for use as critical components in life support devices or systems. holtek reserves the right to alter its products without prior notification. for the most up-to-date information, please visit our web site at http://www.holtek.com.tw. holtek semiconductor inc. (headquarters) no.3, creation rd. ii, science park, hsinchu, taiwan tel: 886-3-563-1999 fax: 886-3-563-1189 http://www.holtek.com.tw holtek semiconductor inc. (taipei sales office) 4f-2, no. 3-2, yuanqu st., nankang software park, taipei 115, taiwan tel: 886-2-2655-7070 fax: 886-2-2655-7373 fax: 886-2-2655-7383 (international sales hotline) holtek semiconductor inc. (shanghai sales office) 7th floor, building 2, no.889, yi shan rd., shanghai, china 200233 tel: 021-6485-5560 fax: 021-6485-0313 http://www.holtek.com.cn holtek semiconductor inc. (shenzhen sales office) 43f, seg plaza, shen nan zhong road, shenzhen, china 518031 tel:0755-83465589 fax:0755-83465590 isdn : 0755-8346559 holtek semiconductor inc. (beijing sales office) suite 1721, jinyu tower, a129 west xuan wu men street, xicheng district, beijing, china 100031 tel:010-66410030, 66417751, 66417752 fax:010-66410125 holmate semiconductor, inc. (usa sales office) 46712 fremont blvd., fremont, ca 94538 tel: 510-252-9880 fax: 510-252-9885 http://www.holmate.com |
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