UNISONIC TECHNOLOGIES CO., LTD LR7XXYY Advance CMOS IC LOW NOISE DUAL 300mA LDO DESCRIPTION The UTC LR7XXYY series are highly accurate, Dual, low noise, CMOS LDO voltage regulators. Performance features of the series includes low output noise, high ripple rejection ratio, low dropout and very fast turn-on times. The UTC LR7XXYY includes a reference voltage source, error amplifiers, driver transistors, current limiters and phase compensators internally. The LR7XXYY current limiters' foldback circuit also operates as a short protect for the output current limiter. The UTC LR7XXYY series is also fully compatible with low ESR ceramic capacitors, reducing cost and improving output stability. This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of frequencies. The EN function allows the output of each regulator to be turned off independently, resulting in greatly reduced power consumption. The output voltage of these ICs is internally fixed with high accuracy (1%). SOP-8 FEATURES * Supply Current * Standby Current * Dropout Voltage Typ. 25µA (each channel) Typ. 0.1µA (each channel) Typ. 0.21V (IOUT=300mA, VOUT=2.8V) Typ. 0.24V (IOUT=300mA, VOUT=2.5V) * Ripple Rejection Typ. 80dB (f=1kHz) * Temperature-Drift Coefficient of Output Voltage Typ. ±30ppm/°C * Line Regulation Typ. 0.02%/V * Output Voltage Accuracy ±1.0% * Input Voltage Range 2.5V~5.25V * Output Voltage Range 1.5V ~3.3V (0.1V steps) (For details, please refer to MARK INFORMATIONS.) * Built-in Fold Back Protection Circuit Typ. 50mA * Built-in Auto Discharge Function B Version RDERING INFORMATION Note: Ordering Number LR7XXYYAG -S08-R XXYY: Output Voltage, refer to Marking Information. LR7XXYYAG-S08-R (1)Packing Type (2)Package Type (3)Green Package (4)Discharge Function (5)Voltage Code at VOUT2 (6)Voltage Code at VOUT1 www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd Package SOP-8 Packing Tape Reel (1) R: Tape Reel (2) S08: SOP-8 (3) G: Halogen Free and Lead Free (4) A: without auto-discharge function at off state (5) YY: refer to Marking Information (6) XX: refer to Marking Information 1 of 6 QW-R102-068.a LR7XXYY Advance CMOS IC MARKING INFORMATIONS PACKAGE VOLTAGE CODE XX YY 18: 1.8V 25: 2.5V 18: 1.8V 33: 3.3V MARKING SOP-8 PIN CONFIGURATION CE1 1 8 VOUT1 GND 2 7 VDD CE2 3 6 VOUT2 NC 4 5 NC PIN DESCRIPTION PIN NO. PIN NAME DESCRIPTION 1 CE1 Chip Enable Pin 1 2 GND Ground Pin 3 CE2 Chip Enable Pin 2 4 NC No Connection 5 NC No Connection 6 VOUT2 Output Pin 2 7 VDD Input Pin 8 VOUT1 Output Pin 1 Notes: 1. Tab is GND level. (They are connected to the reverse side of this IC.) 2. The tab is better to be connected to the GND, but leaving it open is also acceptable. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R102-068.a LR7XXYY Advance CMOS IC BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 6 QW-R102-068.a LR7XXYY Advance CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN 6.0 V Input Voltage (CE Pin) VCE 6.0 V Output Voltage VOUT -0.3 ~ VIN+0.3 V Output Current 1 IOUT1 400 mA Output Current 2 IOUT2 400 mA Power Dissipation PD 880 mW Operating Temperature Range TOPR -40 ~ 85 °C Storage Temperature Range TSTG -55 ~ 125 °C 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 (TOPT=25°C, VIN=Set VOUT+ 1V for higher output of the regulator pair, IOUT=1mA, CIN=COUT =1µF, unless otherwise noted) VR1/VR PARAMETER Output Voltage Output Current Load Regulation SYMBOL VOUT TEST CONDITIONS VIN=Set VOUT+1V, VOUT>2.0V IOUT=1mA VOUT ≤ 2.0V IOUT ∆VOUT/ ∆IOUT 1mA ≤ IOUT ≤ 200mA 1.5V≤Set VOUT<1.7V 1.7V≤Set VOUT<2.0V Dropout Voltage VDIF IOUT=300mA 2.0V≤Set VOUT<2.5V 2.5V≤Set VOUT<2.8V 2.8V≤Set VOUT ≤ 3.3V Supply Current Standby Current ISS Istandby Line Regulation ∆VOUT/ ∆VIN Ripple Rejection RR IOUT =0V VCE=0V Set VOUT+0.5V≤VIN≤5.0V (In case that VOUT ≤2.0V, 2.5V≤VIN ≤5.0) f=1kHz, Ripple 0.2Vp-p, VIN=Set VOUT+1V, IOUT=30mA (In case that VOUT ≤2.0V, VIN=3V) MIN ×0.99 -20 300 TYP MAX ×1.01 +20 20 0.40 0.34 0.29 0.24 0.21 25 0.1 40 1.00 0.80 0.50 0.38 0.34 33 3.0 0.02 0.10 80 UNIT V mV mA mV V µA µA %/V dB Input Voltage (Note 1) VIN 2.5 5.25 V Output Voltage ∆VOUT/ ∆TOPT −40°C ≤TOPT≤ 85°C ±30 ppm/°C Temperature Coefficient Short Current Limit ISC VOUT=0V 50 mA CE Pull-Down Current IPD 0.05 0.3 0.6 µA CE Input Voltage “H” VCEH 1.5 6.0 V CE Input Voltage “L” VCEL 0.3 V Output Noise en BW=10Hz~100kHz 30 µVrms Low Output Nch Tr. ON RLOW VIN=4.0, VCE=0V 30 Ω Resistance (B version) Note: The maximum Input Voltage of the ELECTRICAL CHARACTERISTICS is 5.25V. In case of exceeding this specification, the IC must be operated on condition that the Input Voltage is up to 5.5V and the total operating time is within 500hrs. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 6 QW-R102-068.a LR7XXYY Advance CMOS IC TEST CIRCUIT CIN, CL1, CL2 : 1µF(ceramic) VIN VOUT1 EN1 CIN V A CL1 IOUT1 V RL1 EN2 VOUT2 VSS A CL2 IOUT2 V RL2 CL1, CL2 : 1µF(ceramic) VIN VOUT1 EN1 V EN2 CL1 IOUT1 CL2 IOUT2 V VOUT2 VSS V Test Circuit for Ripple Rejection UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R102-068.a LR7XXYY Advance CMOS IC TYPICAL APPLICATION CIRCUIT(Cont.) CIN, CL1, CL2 : 1µF(ceramic) VIN VOUT1 EN1 V CIN A CL1 IOUT1 V RL1 EN2 VOUT2 VSS A CL2 IOUT2 V RL2 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 6 of 6 QW-R102-068.a