LR1101

UNISONIC TECHNOLOGIES CO., LTD LR1101 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 1.2V ~ 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. CMOS IC *Pb-free plating product number:LR1101L 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 Normal Lead Free Plating LR1101-xx-AB3-C-R LR1101L-xx-AB3-C-R LR1101-xx-AE3-5-R LR1101L-xx-AE3-5-R LR1101-xx-AF5-R LR1101L-xx-AF5-R Note: Pin Assignment: I: VIN O: VOUT G: GND Package SOT-89 SOT-23 SOT-25 1 G G I Pin Assignment 23 4 I O O I G EN NC 5 O Packing Tape Reel Tape Reel Tape Reel NC: No Connection EN: Enable (1) R:Tape Reel (2) refer to Pin Assignment (3) AB3:SOT-89, AE3:SOT-23, AF5:SOT-25 (4) xx:refer to Marking Information (5) L:Lead Free Plating, Blank:Pb/Sn LR1101L-xx-AB3-C-R (1)Packing Type (2)Pin Assignment (3)Package Type (4)Output Voltage Code (5)Lead Plating www.unisonic.com.tw Copyright © 2007 Unisonic Technologies Co., Ltd 1 of 8 QW-R102-034.A LR1101 MARKING INFORMATIONS PACKAGE VOLTAGE CODE 12:1.2V 13:1.3V 14:1.4V 15:1.5V 16:1.6V 17:1.7V 18:1.8V 19:1.9V 20:2.0V 21:2.1V 22:2.2V 23:2.3V 24:2.4V 25:2.5V 26:2.6V 27:2.7V 28:2.8V 2J:2.85V 29:2.9V 30:3.0V 31:3.1V 32:3.2V 33:3.3V 34:3.4V 35:3.5V 36:3.6V 37:3.7V 38:3.8V 39:3.9V 40:4.0V 41:4.1V 42:4.2V 43:4.3V 44:4.4V 45:4.5V 46:4.6V 47:4.7V 48:4.8V 49:4.9V 50:5.0V PIN CODE 1 2 3 4 5 MARKING CMOS IC SOT-89 C G I O - - 3 2 1 SOT-25 - I G EN NC O SG XX 4 5 Voltage Code SOT-23 5 G O I - - 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.A LR1101 BLOCK DIAGRAM VIN CMOS IC GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw + Current Limit _ EN VOUT 3 of 8 QW-R102-034.A LR1101 ABSOLUTE MAXIMUM RATINGS PARAMETER Input Voltage SYMBOL VIN CMOS IC RATINGS UNIT 7 V SOT-89 500 mW Power Dissipation (Ta = 25℃) PD SOT-23 250 mW SOT-25 250 mW Junction Temperature TJ 125 ℃ Operating Temperature TOPR -40 ~ +125 ℃ 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. THERMAL DATA PARAMETER Thermal Resistance SOT-89 SOT-23 SOT-25 SYMBOL θJA RATINGS 180 250 250 UNIT ℃/W ℃/W ℃/W ELECTRICAL CHARACTERISTICS (VIN = 5.5V, CIN = 1µF, Co = 1µF, TA = 25℃ unless otherwise specified) PARAMETER Input Voltage Range Output Voltage Accuracy Line Regulation Load Regulation Maximum Output Current Current Limit GND Pin Current Dropout Voltage Stand By Current EN SYMBOL VIN ∆VOUT ∆VLINE ∆VLOAD IMAX ILIMIT IG VD ISTN-BY EN 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 = VIN VOUT = High VOUT = Low VOUT = 0 Exterior Calefaction EN MIN. 2 -2 -0.2 TYP. MAX. 6 +2 0.2 UNIT V % %/V %/mA mA mA µA mV µA V A ℃ 0.01 100 150 250 4 4 4 200 450 0.1 1 1 0.156 0.04 Threshold Short Current Thermal Shutdown ISC 0.6 0.6 0.157 125 7 10 10 300 600 1 2 2 0.168 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 8 QW-R102-034.A LR1101 APPLICATION INFORMATION CMOS IC 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 VIN CIN 1µF GND VOUT COUT 1µF VOUT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 8 QW-R102-034.A LR1101 TYPICAL CHARACTERISTICS Temperature Stability 3.7 3.3 2.9 2.5 2.1 VOUT=1.8V 1.7 -50 -25 0 25 50 75 Temperature (℃) 100 125 0 -30 0 VOUT=3.3V 5 4 3 2 1 CMOS IC Quiescient Current VIN=5V 30 60 90 Temperature (℃) 120 PSRR (dB) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw PSRR (dB) Short Circuit Current (mA) Droput Voltage (V) 6 of 8 QW-R102-034.A LR1101 Load Current (mA) Output Voltage Deviation (mV) Load Current (mA) Output Voltage Deviation (mV) Input Voltage Deviation (V) Output Voltage Deviation (mV) TYPICAL CHARACTERISTICS(Cont.) UNISONIC TECHNOLOGIES CO., LTD Load Current (mA) Output Voltage Deviation (mV) www.unisonic.com.tw Input Voltage Deviation (V) Output Voltage Deviation (mV) Load Current (mA) Output Voltage Deviation (mV) 7 of 8 QW-R102-034.A CMOS IC 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.A