UNISONIC TECHNOLOGIES CO., LTD LR9103 Preliminary CMOS IC LOW NOISE 150mA LDO REGULATOR DESCRIPTION The UTC LR9103 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 LR9103, 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 LR9103 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 LR9103. The UTC LR9103 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: 36µA (Typ.) * Standby Mode: 0.1µA (Typ.) * Very Low Dropout Voltage: 0.13V (Typ.) @ IOUT =150mA, VOUT =2.85V * Ripple Rejection: 75dB (Typ.) @ f=1kHz,VOUT=2.85V * Temperature-Drift Coefficient ±50ppm/°C (Typ.) of Output Voltage: * Well Line Regulation: 0.02%/ V (Typ.) *Output Voltage Accuracy: ±1.0% * Internal Fold Back Protection Circuit: 50mA (Typ.) (Current at short mode) *CIN=COUT=0.47µF or more (Ceramic capacitors) are recommended to be used with this IC ORDERING INFORMATION Note: Ordering Number LR9103G-xx-AE5-R LR9103G-xx-AF5-R LR9103G-xx-K04-1010-R xx: Output Voltage, refer to Marking Information. LR9103G-xx-AE5-R (1)Packing Type (2)Package Type Package SOT-23-5 SOT-25 DFN-4(1.0×1.0) (1) R: Tape Reel (2) AE5: SOT-23-5, AF5: SOT-25, K04-1010: DFN-4(1.0×1.0) (3)Output Voltage Code (3) xx: refer to Marking Information (4)Green Package (4) G: Halogen Free and Lead Free www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd Packing Tape Reel Tape Reel Tape Reel 1 of 5 QW-R102-062.d LR9103 Preliminary CMOS IC MARKING PACKAGE VOLTAGE CODE SOT-23-5 SOT-25 12: 1.2V 15: 1.5V 18: 1.8V 25: 2.5V 28: 2.8V 30: 3.0V 33: 3.3V DFN-4(1.0×1.0) B: 1.2V C: 1.5V D: 1.8V E: 2.5V G: 2.8V J: 3.0V K: 3.3V PIN CONFIGURATION PIN DESCRIPTION MARKING ZX Voltage Code PIN NO. SOT-23-5 SOT-25 1 2 3 4 5 DFN-4(1.0×1.0) 4 2 3 1 PIN NAME VIN GND CE NC VOUT DESCRIPTION Input Pin Ground Pin Chip Enable Pin. Active when this Pin is high. No Connection Output Pin UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R102-062.d LR9103 Preliminary CMOS IC BLOCK DIAGRAM VIN VOUT + Reference Voltage Current Limit CE UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw GND 3 of 5 QW-R102-062.d LR9103 Preliminary CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER Input Voltage Input Voltage (CE Pin) Output Voltage Output Current Power Dissipation SYMBOL VIN VCE VOUT IOUT SOT-23-5 SOT-25 DFN-4(1.0×1.0) RATINGS 6 6 -0.3~ VIN+0.3 200 UNIT V V V mA 380 mW PD 60 Junction Temperature TJ +125 Operating Temperature TOPR -40~+85 Storage Temperature TSTG -55~+125 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. mW °С °С °С ELECTRICAL CHARACTERISTICS (TA=25°С, VIN=Set VOUT+1V, IOUT=1mA, CI =CO=0.47µF, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN VIN = Set VOUT > 2.0V ×0.99 Output Voltage VOUT VOUT+1V -20 VOUT ≤ 2.0V Input Voltage VIN Load Regulation ∆VOUT 1mA≤IOUT≤150mA Output Current IOUT 150 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 I OUT=150mA 2.0V≤VOUT＜2.5V 2.5V≤VOUT＜2.8V Line Regulation Output Voltage Temperature Coefficient Low Output Nch Tr. ON Resistance ∆VOUT ∆VIN ∆VOUT ∆T RLOW 2.8V≤VOUT≤5.0V 1.2V≤VOUT≤4.0V, VSET+0.5V≤VIN≤5V 4.0V<VOUT≤5.0V, VSET+0.5V≤VIN≤6.5V 30 UNIT V mV V mV mA µA µA mA µA V V µVrms 75 dB 0.40 0.24 0.21 0.17 0.14 0.13 V 20 36 0.1 50 0.3 MAX ×1.01 +20 6 40 50 2 0.3 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 4 of 5 QW-R102-062.d LR9103 Preliminary CMOS IC TEST CIRCUIT VIN C1 1.0µF VIN VOUT UTC LR9103 C2 1.0µF V VOUT IOUT A ISS Basic Test Circuit UTC LR9103 C1 1.0µF CE GND CE VOUT C2 1.0µF GND Test Circuit for Supply Current TYPICAL APPLICATION CIRCUIT IN C1 1.0μF VOUT VIN CE UTC LR9103 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 5 of 5 QW-R102-062.d