UNISONIC TECHNOLOGIES CO., LTD LR4XXYY Preliminary CMOS IC Dual，Low-Noise，200mA LDO REGULATOR DESCRIPTION 6 The UTC LR4XXYY are dual voltage regulator ICs that have high output voltage accuracy, low dropout, low supply current, and high ripple rejection. Every Channel of UTC LR4XXYY series consists of a voltage reference unit and over temperature protection, simultaneity; also consists of an error amplifier, a current limit circuit, resistors for setting output voltage, and a chip enable circuit, respectively. The EN1 and EN2 pins control each output respectively, When both outputs shutdown simultaneously, the chip will be turn off and consumes nearly zero operation current which is suitable for battery-power devices. The load transient response and line transient response of the UTC LR4XXYY Series are excellent, so these ICs are suitable for hand-held communication equipment power supply. 5 4 1 2 3 SOT-26 FEATURES * 200mA Guaranteed Output Current(Each LDO) * Dual Shutdown Pins Control Each Output * 120mV Dropout at 100mA Load * Current Limiting Protection * Thermal Shutdown Protection * Excellent Line/Load Transient * RoHS Compliant and 100% Lead (Pb)-Free ORDERING INFORMATION Note: Ordering Number LR4XXYYG-AG6-R XXYY: Output Voltage, refer to Marking Information. www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd Package SC59-6 Packing Tape Reel 1 of 7 QW-R502-A39.b LR4XXYY Preliminary CMOS IC MARKING INFORMATIONS PACKAGE Code SOT-26 A B C D E F VOLTAGE CODE XX YY 28: 2.8V 28: 2.8V 30: 3.0V 30: 3.0V 12: 1.2V 18: 1.8V 18: 1.8V 28: 2.8V 18: 1.8V 33: 3.3V 33: 3.3V 18: 1.8V PIN CONFIGURATIONS PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 PIN NAME VOUT2 GND EN2 EN1 VIN VOUT1 MARKING DESCRIPTION Channel 2’s voltage output Ground Channel 2’s output enable control Pin Channel 1’s output enable control Pin Voltage Input pin Channel 1’s voltage output UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R502-A39.b LR4XXYY Preliminary CMOS IC BLOCK DIAGRAM EN1 4 VREF 6 VOUT1 2 GND 1 VOUT2 R1-1 R2-1 Current Limit VIN 5 Current Limit R2-2 VREF R1-2 EN2 3 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 7 QW-R502-A39.b LR4XXYY Preliminary ABSOLUTE MAXIMUM RATINGS (Note 1) PARAMETER Supply Input Voltage(Operating) Supply Input Voltage(Survival) Enable Input Voltage Lead Temperature (Soldering, 10 sec.) ESD Rating (Note 2) Junction Temperature Storage Temperature Range Operation Temperature Range CMOS IC SYMBOL VIN VEN TJ TSTG TOPR RATINGS 2.5 ~ 5.5 -0.3 ~ +6.5 0 ~ 5.5 +260 2 -40 ~ +125 -65 ~ +150 -40 ~ +85 UNIT V V °C kV °C °C °C ELECTRICAL CHARACTERISTICS (VIN = VOUT+0.5V or 2.5V, CIN = COUT = 2.2μF, EN1=EN2=VIN, TA= 25°C, for each LDO unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage Accuracy ∆VOUT IOUT=1mA to 200mA -2 +2 % (Load Regulation) Maximum Output Current IMAX Continous 200 mA Current Limit ILIM RLOAD=1Ω 500 1000 mA No Load 165 260 μA Quiescent Current IG IOUT=100mA(Both LDOs) 165 260 μA IOUT＝1mA 20 mV IOUT＝100mA 120 mV Dropout Voltage(Note3) VDROP IOUT＝200mA 255 mV VIN=(Vout+0.5V or 2.5V) to 5.5V -0.2 +0.2 %/V Line Regulation ∆VLINE IOUT=1mA VIN＝2.5V to 5.5V 1.6 V En Input High Threshold VIH VIN＝2.5V to 5.5V 0.4 V En Input Low Threshold VIL En Input Bias Current ISD EN=GND or VIN 100 nA EN1＝EN2＝GND Shutdown Supply Current IGSD 0.01 2 μA Thermal Shutdown Temperature TSD 140 °C Thermal Shutdown Hysteresis ∆TSD 10 °C 10~100kHz，COUT=4.7μF， 124 μVRMS Output Voltage Noise eNO ILOAD=1mA 100Hz，COUT＝4.7μF Output Voltage AC PSRR PSRR 62 dB ILOAD＝100mA Notes：1. Limits beyond which damage to the device may occur is indicated by absolute maximum ratings. Conditions for which the device is intended to be functional is indicated by operating ratings, but specific performance` limits isn’t be guaranteed. Only for the test conditions listed the guaranteed specifications can be applied. When the device is not operated under the listed test conditions some performance characteristics may degrade. 2. Which discharged through a 1.5kΩ resistor into each pin is a 100pF capacitor in the human body model. 3. The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL) − 100mV. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 7 QW-R502-A39.b LR4XXYY Preliminary CMOS IC TEST CIRCUITS Fig.1 Standard Test Circuit EN2 VOUT2 C3 2.2μF A ISS C1 2.2μF GND VIN EN1 VOUT1 C2 2.2μF Fig.2 Supply Current Test Circuit UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 7 QW-R502-A39.b LR4XXYY Preliminary CMOS IC TEST CIRCUITS(Cont.) EN2 VOUT2 C3 2.2μF Pulse Generator PG GND VIN EN1 VOUT1 IOUT2 C2 2.2μF IOUT1 Fig.3 Ripple Rejection, Line Transient Response Test Circuit Fig.4 Load Transient Response Test Circuit UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 7 QW-R502-A39.b LR4XXYY Preliminary CMOS IC TYPICAL APPLICATION CIRCUIT 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 7 of 7 QW-R502-A39.b