HT72XX Series 300mA TinyPowerTM LDO Features · Output voltage ranges: Fixed range of 1.8V, 2.5V, · Guaranteed output current: 300mA 2.7V, 3.0V, 3.3V, 5.0V type. · Low quiescent current: 4mA (typ.) · Highly accuracy: ±2% · Current limiting · Low voltage drop: 240mV (typ.), · Over-temperature shutdown VOUT=5.0V at 300mA · SOT23, SOT23-5, SOT89, TO92 Packages · Maximum Input Voltage: 8V Applications · Portable electronics · PC peripherals · Wireless devices · Battery powered devices · Cordless phones · Electronic scales General Description They are available with several fixed output voltages ranging from 1.8V to 5.0V. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain variable voltages and currents. The HT72XX series of positive, linear regulators features low quiescent current (4mA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOT23 package is attractive for ²Pocket² and ²Hand Held² applications. The devices are capable of supplying 300mA of output current continuously. These rugged devices have Thermal Shutdown and Current Limiting to prevent device failure under the ²Worst² of operating conditions. Selection Table Note: Part No. Output Voltage HT7218 1.8V HT7225 2.5V HT7227 2.7V HT7230 3.0V HT7233 3.3V HT7250 5.0V Tolerance Package Marking ±2% SOT23 SOT23-5 SOT89 TO92 72XX# (for SOT23) 72XX# (for SOT23-5) HT72XX# (for SOT89) HT72XX (for TO92) ²XX² stands for output voltages. For lead free devices, TO92 package will add a ²#² mark at the end of the date code, whereas SOT89 & SOT23, SOT23-5 packages will add a ²#² mark at the end of the marking. Rev. 1.20 1 September 30, 2008 HT72XX Series Block Diagram V O U T V IN O v e rc u rre n t S h u td o w n T h e rm a l S h u td o w n C E R 1 A M P V re f R 2 G N D Pin Assignment S O T 2 3 S O T 8 9 S O T 2 3 -5 V O U T V IN T O 9 2 N C H T 7 2 X X H T 7 2 X X # G N D G N D V IN V O U T G N D T o p V ie w T o p V ie w 7 2 X X # T o p V ie w 7 2 X X # F r o n t V ie w V IN V O U T C E G N D V IN V O U T B o tto m G N D V O U T V IN G N D C E G N D V IN V O U T G N D V IN V ie w V O U T Pin Description Pin No. Pin Name Description SOT23 SOT23-5 SOT89 TO92 ¾ 3 ¾ ¾ CE 2 5 3 3 VOUT 3 1 2 2 VIN Input pin 1 2 1 1 GND Ground pin ¾ 4 ¾ ¾ NC Chip enable pin, high enable Output pin No connection Absolute Maximum Ratings* Maximum Supply Voltage ............................ up to 8.5V Storage Temperature ...........................-50°C to 125°C Operating Temperature ..........................-40°C to 85°C Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² 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 reliability. ²*² Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. The guaranteed specifications apply only for the test conditions listed. Rev. 1.20 2 September 30, 2008 HT72XX Series Thermal Information Symbol qJA PD Parameter Thermal Resistance (Junction to Ambient) (Assume no ambient airflow, no heat sink) Package Max. Unit SOT23 667 °C/W SOT23-5 500 °C/W SOT89 200 °C/W TO92 200 °C/W SOT23 0.15 W SOT23-5 0.20 W SOT89 0.50 W TO92 0.50 W Power Dissipation Note: PD is measured at Ta= 25°C Electrical Characteristics Symbol Parameter Tj=25°C, VIN=VOUT+1.0V, IO=1mA, unless otherwise specified Test Conditions Min. Typ. Max. Unit VIN Input Voltage ¾ ¾ ¾ 8 V DVOUT Output Voltage Tolerance ¾ -2 ¾ 2 % ISS Quiescent Current IO=0mA, VCE=VIN ¾ 4 7 mA DVLOAD Load Regulation (Note1) 1mA£IOUT£300mA ¾ 0.004 0.008 %/mA VO£1.8V ¾ 800 1200 Dropout Voltage (Note2) DVOUT=2% IOUT=300mA 2.5V£VO£2.7V ¾ 350 400 3.0V£VO£5.0V ¾ 240 300 ¾ 0.2 0.3 %/V VDROP mV DVLINE Line Regulation VOUT+1.0V£VIN£8.0V ILIM Current Limit (Note3) DVOUT=10% 300 ¾ ¾ mA VIH CE Input High Threshold VOUT+1V£VIN£8V 2.0 ¾ ¾ V VIL CE Input Low Threshold VOUT+1V£VIN£8V ¾ ¾ 0.8 V ISD Shutdown Current CE input voltage£0.8V ¾ 0.5 1 mA Temperature Coefficient -40°C<Ta<85°C ¾ ±0.8 ¾ mV/°C D V O D T U T a Note: 1. Load regulation is measured at a constant junction temperature, using pulse testing with a low ON time and is guaranteed up to the maximum power dissipation. Power dissipation is determined by the input/output differential voltage and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range. The maximum allowable power dissipation at any ambient temperature is PD = (TJ(MAX) - Ta) / qJA. 2. Dropout voltage is defined as the input voltage minus the output voltage that produces a 2% change in the output voltage from the value at VIN = VOUT+1V with a fixed load. 3. Current limit is measured by pulsing for a short time. Rev. 1.20 3 September 30, 2008 HT72XX Series Application Circuits Basic Circuits V V IN IN G N D C 1 1 m F C o m m o n V V V O U T H T 7 2 X X S e r ie s C 2 2 .2 m F C o m m o n S in g le p o in t G N D V IN IN H L V V O U T H T 7 2 X X S e r ie s C E C 1 1 m F O U T C 2 2 .2 m F G N D C o m m o n O U T C o m m o n S in g le p o in t G N D Typical Application Circuits · High output current positive voltage regulator IC T r1 V H T 7 2 X X S e r ie s V IN IN R 1 IR V = IR IO = IC IO E G S in g le p o in t G N D 1 O U T C 2 1 0 m F C o m m o n R V V O U T G N D C 1 1 0 m F Rev. 1.20 1 B E 1 IC E G - 1 + IR 1 C o m m o n , (1 + b ) E G 4 September 30, 2008 HT72XX Series · Increased Output voltage Circuit V V IN IN C 1 1 0 m F IS C 2 1 0 m F G N D S V V O U T H T 7 2 X X S e r ie s V O U T R 1 X X R 2 C o m m o n S in g le p o in t G N D VOUT = VXX (1+ C o m m o n R2 ) + ISS R2 R1 · Dual Supply Circuit IC 1 V V IN IN IC 2 V IN V V G N D H T 7 2 X X S e r ie s C 1 1 0 m F V O U T H T 7 2 X X S e r ie s X X 1 O U T 1 C 3 1 0 m F V O U T V C 2 1 0 m F G N D C o m m o n R 1 V O U T 2 X X 2 C o m m o n S in g le p o in t G N D VOUT1 = VXX2 + VXX1 VOUT2 = VXX2 · Tracking Voltage Regulator V V IN IN C 1 1 0 m F V V O U T H T 7 2 X X S e r ie s C 2 1 0 m F G N D R A R B O U T S in g le p o in t G N D -V V IN O RB -VO = VOUT x RA Rev. 1.20 5 September 30, 2008 HT72XX Series Package Information 3-pin SOT23 Outline Dimensions D C L H E q e A A 2 b Symbol Dimensions in mm Min. Nom. Max. 1.0 ¾ 1.3 A1 ¾ ¾ 0.1 A2 0.7 ¾ 0.9 A Rev. 1.20 A 1 b 0.35 ¾ 0.5 C 0.10 ¾ 0.25 D 2.7 ¾ 3.1 E 1.4 ¾ 1.8 e ¾ 1.9 ¾ H 2.6 ¾ 3.0 L 0.37 ¾ ¾ q 1° ¾ 9° 6 September 30, 2008 HT72XX Series 5-pin SOT23-5 Outline Dimensions D C L H E q e A A 2 b Symbol Dimensions in mm Min. Nom. Max. 1.00 ¾ 1.30 A1 ¾ ¾ 0.10 A2 0.70 ¾ 0.90 A Rev. 1.20 A 1 b 0.35 ¾ 0.50 C 0.10 ¾ 0.25 D 2.70 ¾ 3.10 E 1.40 ¾ 1.80 e ¾ 1.90 ¾ H 2.6 ¾ 3.0 L 0.37 ¾ ¾ q 1° ¾ 9° 7 September 30, 2008 HT72XX Series 3-pin SOT89 Outline Dimensions I A J B C E D G F Symbol Rev. 1.20 H Dimensions in mil Min. Nom. Max. A 173 ¾ 181 B 59 ¾ 72 C 90 ¾ 102 D 35 ¾ 47 E 155 ¾ 167 F 14 ¾ 19 G 17 ¾ 22 H ¾ 59 ¾ I 55 ¾ 63 J 14 ¾ 17 8 September 30, 2008 HT72XX Series 3-pin TO92 Outline Dimensions A B D C E F G H Symbol Rev. 1.20 Dimensions in mil Min. Nom. Max. A 170 ¾ 200 B 170 ¾ 200 C 500 ¾ ¾ D 11 ¾ 20 E 90 ¾ 110 F 45 ¾ 55 G 45 ¾ 65 H 130 ¾ 160 I 8 ¾ 18 a 4° ¾ 6° 9 September 30, 2008 HT72XX Series Product Tape and Reel Specifications Reel Dimensions D T 2 A C B T 1 SOT23, SOT23-5 Symbol Description Dimensions in mm A Reel Outer Diameter 178.0±1.0 B Reel Inner Diameter 62.0±1.0 C Spindle Hole Diameter 13.0±0.2 D Key Slit Width 2.50±0.25 T1 Space Between Flange 8.4+1.5/-0.0 T2 Reel Thickness 11.4+1.5/-0.0 SOT89 Symbol Description Dimensions in mm A Reel Outer Diameter 180.0±1.0 B Reel Inner Diameter 62.0±1.5 C Spindle Hole Diameter D Key Slit Width T1 Space Between Flange 12.4+0.2/-0.00 T2 Reel Thickness 17.0+0.0/-0.4 Rev. 1.20 12.75+0.15/-0.00 1.90±0.15 10 September 30, 2008 HT72XX Series 3-pin TO92 Reel Dimensions (Unit: mm) P a c k a g e U p , F la t S id e U p 3 0 P a c k a g e U p , F la t S id e D o w n 4 3 5 8 8 8 3 6 0 Rev. 1.20 11 September 30, 2008 HT72XX Series Carrier Tape Dimensions P 0 D P 1 t E F W C D 1 P B 0 K 0 A 0 R e e l H o le IC M a r k in g SOT23, SOT23-5 Symbol Description Dimensions in mm W Carrier Tape Width P Cavity Pitch E Perforation Position 1.75±0.10 8.0±0.3 4.0±0.1 F Cavity to Perforation (Width Direction) 3.50±0.05 D Perforation Diameter 1.5+0.1/-0.0 D1 Cavity Hole Diameter 1.5+0.1/-0.0 P0 Perforation Pitch P1 Cavity to Perforation (Length Direction) 2.00±0.05 A0 Cavity Length 3.15±0.10 B0 Cavity Width 3.2±0.1 K0 Cavity Depth 1.4±0.1 4.0±0.1 t Carrier Tape Thickness C Cover Tape Width 0.20±0.03 5.3±0.1 SOT89 Symbol Description Dimensions in mm 12.0+0.3/-0.1 W Carrier Tape Width P Cavity Pitch E Perforation Position 1.75±0.10 F Cavity to Perforation (Width Direction) 5.50±0.05 D Perforation Diameter 1.5+0.1/-0.0 D1 Cavity Hole Diameter 1.5+0.1/-0.0 P0 Perforation Pitch 4.0±0.1 P1 Cavity to Perforation (Length Direction) 2.0±0.1 A0 Cavity Length 4.8±0.1 B0 Cavity Width 4.5±0.1 K0 Cavity Depth t Carrier Tape Thickness C Cover Tape Width Rev. 1.20 8.0±0.1 1.8±0.1 0.300±0.013 9.3±0.1 12 September 30, 2008 HT72XX Series 3-pin TO92 Carrier Tape Dimensions P D h W 2 H 1 H H 0 l1 W 0 t W 1 W F 1 F 2 D 0 P 2 P 0 TO92 Symbol Note: Description Dimensions in mm I1 Taped Lead Length (2.5) P Component Pitch 12.7±1.0 P0 Perforation Pitch 12.7±0.3 P2 Component to Perforation (Length Direction) 6.35±0.40 F1 Lead Spread 2.5+0.4/-0.1 F2 Lead Spread 2.5+0.4/-0.1 Dh Component Alignment W Carrier Tape Width W0 Hold-down Tape Width 6.0±0.5 W1 Perforation Position 9.0±0.5 W2 Hold-down Tape Position H0 Lead Clinch Height 16.0±0.5 H1 Component Height Less than 24.7 D0 Perforation Diameter 4.0±0.2 t Taped Lead Thickness 0.7±0.2 H Component Base Height 19.0±0.5 0.0±0.1 18.0+1.0/-0.5 (0.5) Thickness less than 0.38±0.05mm~0.5mm P0 Accumulated pitch tolerance: ±1mm/20pitches. ( ) Bracketed figures are for consultation only Rev. 1.20 13 September 30, 2008 HT72XX Series 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) G Room, 3 Floor, No.1 Building, No.2016 Yi-Shan Road, Minhang District, Shanghai, China 201103 Tel: 86-21-5422-4590 Fax: 86-21-5422-4705 http://www.holtek.com.cn Holtek Semiconductor Inc. (Shenzhen Sales Office) 5F, Unit A, Productivity Building, Gaoxin M 2nd, Middle Zone Of High-Tech Industrial Park, ShenZhen, China 518057 Tel: 86-755-8616-9908, 86-755-8616-9308 Fax: 86-755-8616-9722 Holtek Semiconductor Inc. (Beijing Sales Office) Suite 1721, Jinyu Tower, A129 West Xuan Wu Men Street, Xicheng District, Beijing, China 100031 Tel: 86-10-6641-0030, 86-10-6641-7751, 86-10-6641-7752 Fax: 86-10-6641-0125 Holtek Semiconductor Inc. (Chengdu Sales Office) 709, Building 3, Champagne Plaza, No.97 Dongda Street, Chengdu, Sichuan, China 610016 Tel: 86-28-6653-6590 Fax: 86-28-6653-6591 Holtek Semiconductor (USA), Inc. (North America Sales Office) 46729 Fremont Blvd., Fremont, CA 94538 Tel: 1-510-252-9880 Fax: 1-510-252-9885 http://www.holtek.com Copyright Ó 2008 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes 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. Rev. 1.20 14 September 30, 2008