UNISONIC TECHNOLOGIES CO., LTD LR1101 CMOS IC 100mA, 4µA QUIESCENT CURRENT CMOS LDO REGULATOR DESCRIPTION The UTC LR1101 series are ultra-low quiescent current CMOS LDO (Low Dropout Voltage). Designed for battery-powered system, the low 4μA quiescent current makes it an ideal choice. The Range of the output voltage is from 1.5V ~ 5V with 0.1V per step. And the max output current is 100mA. Wide range of available output fits most of applications. Built-in output current-limiting provide maximal protection against any fault conditions. FEATURES * 450mV typically dropout at 100mA * Ultra-low quiescent current: 4μA * Wide operating voltage ranges: 2V ~ 6V * Thermal current limiting protection * For stability only 1μF output capacitor is required * High power supply rejection ratio ORDERING INFORMATION Ordering Number Pin Assignment Package Lead Free Halogen Free 1 2 3 4 LR1101L-xx-AB3-C-R LR1101G-xx-AB3-C-R SOT-89 G I O LR1101L-xx-AE3-5-R LR1101G-xx-AE3-5-R SOT-23 G O I LR1101L-xx-AF5-R LR1101G-xx-AF5-R SOT-25 I G EN NC Note: Pin Assignment: I: VIN O: VOUT G: GND NC: No Connection EN: Enable www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd 5 O Packing Tape Reel Tape Reel Tape Reel 1 of 8 QW-R102-034.E LR1101 CMOS IC MARKING INFORMATIONS PACKAGE VOLTAGE CODE PIN CODE 1 2 3 4 5 C G I O - - SOT-89 SOT-25 15:1.5V 18:1.8V 25:2.5V 28:2.8V 30:3.0V 33:3.3V 35:3.5V 36:3.6V 47:4.7V 50:5.0V MARKING - I G EN NC O Voltage Code SG XX 1 2 5 G O I - - Voltage Code L: Lead Free G: Halogen Free SG 2 G: Halogen Free L: Lead Free 3 3 SOT-23 4 5 1 PIN DESCRIPTION SOT-89 2 3 1 - PIN NO. SOT-25 1 5 2 3 4 SOT-23 3 2 1 - PIN NAME VIN VOUT GND EN NC DESCRIPTION Input voltage Output voltage Ground Chip enable input No connection UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 8 QW-R102-034.E LR1101 BLOCK DIAGRAM VIN + Current Limit _ CMOS IC EN VOUT GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 8 QW-R102-034.E LR1101 CMOS IC ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL VIN RATINGS UNIT 7 V SOT-89 500 mW Power Dissipation (TA = 25℃) SOT-23 PD 250 mW SOT-25 250 mW Junction Temperature TJ 125 ℃ Operating Temperature TOPR -40 ~ +85 ℃ Storage Temperature TSTG -65 ~ +150 ℃ Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. Input Voltage THERMAL DATA PARAMETER Thermal Resistance SYMBOL SOT-89 SOT-23 SOT-25 UNIT ℃/W ℃/W ℃/W ELECTRICAL CHARACTERISTICS(VIN =5.5V, CI =1μF, Co=1μF,TA=25℃ unless otherwise specified) PARAMETER Input Voltage Range Output Voltage Accuracy SYMBOL VIN ΔVOUT Line Regulation ΔVLINE Load Regulation Maximum Output Current Current Limit ΔVLOAD IMAX ILIMIT GND Pin Current IG Dropout Voltage VD Stand By Current ISTN-BY Threshold EN Short Current Thermal Shutdown ISC EN θJA RATINGS 180 250 250 TEST CONDITIONS IL = 1mA VIN = (VOUT + 0.3V) to 6V, VIN≧3.6V, IOUT = 1mA ILOUT = 0mA to 100mA VIN = VOUT + 0.6V, VIN≧3.6V IL = 100mA No Load IOUT = 100mA IOUT = 1mA, VIN≧3.6V IOUT = 50mA, VIN≧3.6V IOUT = 100mA, VIN≧3.6V EN = VIN VOUT = High VOUT = Low VOUT = 0 Exterior Calefaction UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN. 2 -2 TYP. -0.2 0.01 100 150 0 2 125 250 4 4 4 200 450 0.1 MAX. 6 +2 UNIT V % 0.2 %/V 0.04 %/mA mA mA 7 10 10 300 600 1 0.6 VIN 500 μA mV μA V mA ℃ 4 of 8 QW-R102-034.E LR1101 CMOS IC APPLICATION INFORMATION Between VOUT and GND a 1μF (or larger) capacitor is recommended for stability. Without the capacitor the part may oscillate. When operating below -25℃ any type of capacitor can be used, but not Aluminum electrolytes. If there’s no limit the capacitance may be increased. Between VIN to GND a 1μF capacitor (or larger) should be placed. APPLICATION CIRCUIT UTC LR1101 VIN VOUT VOUT VIN CI 1µF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw GND CO 1µF 5 of 8 QW-R102-034.E LR1101 CMOS IC TYPICAL CHARACTERISTICS Temperature Stability 4 I （µA） Output Voltage (V) VOUT=3.3V 3.3 Quiescient Current 5 3.7 2.9 2.5 3 2 1 2.1 VOUT=1.8V 0 25 50 75 Temperature (℃) 0 -30 100 125 0 30 60 90 Temperature (℃) 120 PSRR (dB) PSRR (dB) Droput Voltage (V) Short Circuit Current (mA) 1.7 -50 -25 VIN=5V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 8 QW-R102-034.E LR1101 CMOS IC TYPICAL CHARACTERISTICS(Cont.) Line Transient Response Line Transient Response 300 300 VOUT=1.8V 200 TA=25 COUT=1µF Electoltic IOUT=50mA 200 100 6 T 5 4 0 1 2 3 4 5 6 7 Time (mS) 8 9 3 10 CIN=1µF Ceramic 20 COUT=1µF Ceramic VIN=5V, TA=25℃ VOUT=1.8V T Output Voltage Deviation (mV) Output Voltage Deviation (mV) 40 0 1 2 3 4 5 6 7 8 9 10 Time (mS) Load Transient Response Load Transient Response 100 50 CIN=1µF Ceramic COUT=1µF Ceramic VIN=5V, TA=25℃ VOUT=1.8V 0 -50 100 T 1 Load Current (mA) -20 Load Current (mA) T 5 4 50 T 0 6 0 COUT=1µF Electoltic IOUT=50mA 100 T 0 3 VOUT=3.3V TA=25 200 100 10 -100 -50 Time (500µS/Div) Load Current (mA) Output Voltage Deviation (mV) Load Current (mA) Output Voltage Deviation (mV) Time (500µS/Div) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 8 QW-R102-034.E LR1101 CMOS IC UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 8 of 8 QW-R102-034.E