UNISONIC TECHNOLOGIES CO., LTD LR9102 Preliminary CMOS IC LOW NOISE 300mA LDO REGULATOR DESCRIPTION The UTC LR9102 is a typical LDO (linear regulator) with the features of high output voltage accuracy, low supply current, low ON-resistance, and high ripple rejection. During operation of the UTC LR9102, the dropout voltage is very low and the response of line transient and load transient are very well. Internally, there’re many functions of UTC LR9102 which can be seen in the block figure. There are a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit, and a chip enable circuit in each UTC LR9102. The UTC LR9102 can be used as an ideal of the power supply for hand-held communication equipment, such as: power source for portable communication equipment, power source for electrical appliances, for example, cameras, VCRs and camcorders and power source for battery-powered equipment. FEATURES * Ultra Supply Current: * Standby Mode: * Very Low Dropout Voltage: * Ripple Rejection: 50µA (Typ.) 0.1µA (Typ.) 0.14V (Typ.) @IOUT =300mA, VOUT =2.85V 75dB (Typ.) @f=1kHz,VOUT=2.85V ±50ppm/°C (Typ.) * Temperature-Drift Coefficient of Output Voltage: * Well Line Regulation: 0.02%/ V (Typ.) * Output Voltage Accuracy: ±1.0% (Typ.) * Internal Fold Back Protection 50mA (Typ.) @ short mode Circuit: * CIN=COUT=1µF or more (Ceramic capacitors) are recommended to be used with this IC RDERING INFORMATION Note: Ordering Number Lead Free Halogen Free LR9102L-xx-AE5-R LR9102G-xx-AE5-R LR9102L-xx-AF5-R LR9102G-xx-AF5-R xx: Output Voltage, refer to Marking Information. LR9102L-xx-AE5-R Package Packing SOT-23-5 SOT-25 Tape Reel Tape Reel (1)Packing Type (1) R: Tape Reel (2)Package Type (2) AE5: SOT-23-5, AF5: SOT-25 (3)Output Voltage Code (3) xx: refer to Marking Information (4)Halogen Free (4) L: Lead Free, G: Halogen Free www.unisonic.com.tw Copyright © 2013 Unisonic Technologies Co., Ltd 1 of 4 QW-R502-923.b LR9102 Preliminary MARKING INFORMATION PACKAGE VOLTAGE CODE SOT-23-5 SOT-25 15: 1.8V 25: 2.5V 28 :2.8V 33: 3.3V PIN CONFIGURATION PIN DESCRIPTION PIN NO. 1 2 3 4 5 CMOS IC PIN NAME VIN GND CE NC VOUT MARKING DESCRIPTION Input Pin Ground Pin Chip Enable Pin. Active when this Pin is high. No Connection Output Pin BLOCK DIAGRAM VIN VOUT + Reference Voltage Current Limit CE UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw GND 2 of 4 QW-R502-923.b LR9102 Preliminary CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN 6 V Input Voltage (CE Pin) VCE 6 V Output Voltage VOUT -0.3 ~ VIN+0.3 V Output Current IOUT 400 mA Power Dissipation PD 420 mW Junction Temperature TJ +125 °С Operating Temperature TOPR -40~+85 °С Storage Temperature TSTG -55~+125 °С 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. ELECTRICAL CHARACTERISTICS (TA=25°С, VIN=Set VOUT+1V, IOUT=1mA, CI =CO=1µF, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN VOUT > 2.0V ×0.99 Output Voltage VOUT VIN = Set VOUT+1V VOUT ≤ 2.0V -20 Input Voltage VIN Load Regulation ∆VOUT 1mA≤IOUT≤150mA Output Current IOUT 300 Supply Current ISS I OUT=0A Supply Current (Standby) IST-BY VCE=0V Short Current Limit ILIMIT VOUT=0V CE Pull-down Current IPD High VCEH 1.2 CE Input Voltage Low VCEL Output Noise eN BW=10Hz to 100kHz, IOUT =30mA f=1kHz, Ripple 0.2VP-P VIN=Set VOUT+1V, IOUT=30mA Ripple Rejection RR (In case that V OUT=2.0V, VIN=3V) 1.2V ≤VOUT <1.5V 1.5V ≤VOUT <1.7V 1.7V ≤VOUT <2.0V Dropout Voltage VD IOUT=300mA 2.0V ≤VOUT <2.5V 2.5V ≤VOUT <2.8V 2.8V ≤VOUT ≤5.0V ∆VOUT 1.2V≤VOUT≤4.0V, VSET+0.5V≤VIN≤5V Line Regulation ∆VIN 4.0V<VOUT≤5.0V, VSET+0.5V≤VIN≤6.5V Output Voltage Temperature Coefficient Low Output Nch Tr. ON Resistance ∆VOUT ∆T RLOW 30 UNIT V mV V mV mA µA µA mA µA V V µVrms 75 dB 20 50 0.1 50 0.3 MAX ×1.01 +20 6 40 90 2 0.3 0.30 0.22 0.20 0.17 0.14 0.12 0.50 0.32 0.28 0.24 0.20 0.19 V 0.02 0.10 %/V -40°С ≤ TOPR ≤ 85°С ±50 ppm/°С VIN=4.0,VCE=0V 70 Ω UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TYP 3 of 4 QW-R502-923.b LR9102 Preliminary CMOS IC TEST CIRCUIT VIN C1 1.0µF VIN VOUT UTC LR9102 C2 1.0µF V VOUT IOUT A ISS CE Basic Test Circuit UTC LR9102 C1 1.0µF GND CE VOUT C2 1.0µF GND Test Circuit for Supply Current TYPICAL APPLICATION CIRCUIT IN C1 1.0µF VOUT VIN CE UTC LR9102 GND OUT C2 1.0µF 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 4 of 4 QW-R502-923.b