UNISONIC TECHNOLOGIES CO., LTD LR9270 Preliminary CMOS IC 800mA LDO REGULATOR 1 DESCRIPTION The UTC LR9270 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 LR9270, 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 LR9270 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 LR9270. The UTC LR9270 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. SOT-89-5 4 5 1 2 3 SOT-25 FEATURES * Low standby current * Ultra-Low supply current * Output voltage (stepwise setting with a step of 0.1V in the range of 1.2V~4.0V) * Output current (MIN=800mA@VIN=VOUT+1.0V) * Low dropout voltage * Line regulation * High output voltage accuracy * Low temperature-drift coefficient of output voltage * Built-in thermal shunt circuit * Built-in current limit circuit ORDERING INFORMATION Ordering Number LR9270xG-xx-AB5-R LR9270xG-xx-AF5-R www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd Package SOT-89-5 SOT-25 Packing Tape Reel Tape Reel 1 of 7 QW-R502-A62.b LR9270 Preliminary CMOS IC MARKING INFORMATION PACKAGE VOLTAGE CODE 5 MARKING 4 XX Date Code SOT-89-5 hreshold Level 18: 1.8V 25: 2.5V 33: 3.3V LR9270 G 1 3 2 Voltage Code SOT-25 PIN CONFIGURATION PIN DESCRIPTION PIN NO. SOT-89-5 SOT-25 PIN NAME 1 3 CE or CE 2 3 4 5 2 4 1 5 GND NC VDD VOUT DESCRIPTION Chip Enable Pin Voltage Regulator Output Pin Ground Pin No Connection Input Pin Voltage Regulator Output Pin UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R502-A62.b LR9270 Preliminary CMOS IC BLOCK DIAGRAM VDD VOUT + Vref Current Limit and OTP CE/CE UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw GND 3 of 7 QW-R502-A62.b LR9270 Preliminary CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER Input Voltage Input Voltage( CE or CE Input Pin) SYMBOL VIN RATINGS 7.0 UNIT V VCE -0.3~VIN+0.3 V Output Voltage VOUT -0.3~VIN+0.3 Output Current IOUT 1.2 Power Dissipation PD Internally limited Operating Temperature TOPT -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. V A °C °C ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified) LR9270L-xx PARAMETER Input Voltage Supply Current1 Standby Current Output Voltage Output Current Load Regulation SYMBOL VIN ISS1 ISTB VOUT IOUT1 ∆VOUT/∆IOUT Dropout Voltage Line Regulation Ripple Rejection Output Voltage Temperature Coefficient Short Current Limit VDIF ∆VOUT/∆VIN RR ∆VOUT/∆T ILIM TEST CONDITIONS MIN VIN-VOUT=1.0V, VCE=GND VIN=VCE=6.0V VIN-VOUT=1.0V, IOUT=100mA x0.98 VIN-VOUT=1.0V 800 VIN-VOUT=1.0V, 1mA≤IOUT≤300mA VOUT=1.5 VOUT=1.6 VOUT=1.7 IOUT=300mA VOUT=1.8≤VOUT≤2.0 VOUT=2.1≤VOUT≤2.4 VOUT=2.5≤VOUT≤4.0 IOUT=100mA, VOUT+0.5V≤VIN≤8.0V f=1kHz,Ripple 0.5VP-P,VIN-VOUT=1.0V 30 0.35 0.30 0.25 0.20 0.15 0.12 0.05 50 IOUT=10mA, -40°C ≤ TA ≤ 85°C ±100 VOUT=0V RPU 1.25 CE Input Voltage “H” VCEH 1.50 CE Input Voltage “L” VCEL 100 0.45 0.35 0.30 0.25 0.20 0.18 0.30 2.50 5.00 UNIT V µA µA V mA mV V V V V V V %/V dB ppm /°C mA MΩ V 0.25 V TTSD Junction Temperature 150 °C TTSR Junction Temperature 120 °C UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 80 0.1 MAX 6.0 160 1.0 x1.02 40 Pull-up resistance for CE pin Thermal Shutdown Detector Threshold Temperature Thermal Shutdown Released Temperature TYP 4 of 7 QW-R502-A62.b LR9270 Preliminary CMOS IC ELECTRICAL CHARACTERISTICS(Cont.) LR9270H-xx PARAMETER Input Voltage Supply Current Standby Current Output Voltage Output Current Load Regulation SYMBOL VIN ISS ISTB VOUT IOUT ∆VOUT/∆IOUT Dropout Voltage Line Regulation Ripple Rejection Output Voltage Temperature Coefficient Short Current Limit Pull-down resistance for CE pin CE Input Voltage “H” CE Input Voltage “L” Thermal Shutdown Detector Threshold Temperature Thermal Shutdown Released Temperature VDIF ∆VOUT/∆VIN RR ∆VOUT/∆T ILIM TEST CONDITIONS VIN-VOUT=1.0V, VCE=VIN VIN=6.0V, VCE=GND VIN-VOUT=1.0V, IOUT=100mA VIN-VOUT=1.0V VIN-VOUT=1.0V, 1mA≤IOUT≤300mA VOUT=1.5 VOUT=1.6 VOUT=1.7 IOUT=300mA VOUT=1.8≤VOUT≤2.0 VOUT=2.1≤VOUT≤2.4 VOUT=2.5≤VOUT≤4.0 IOUT=100mA, VOUT+0.5V≤VIN≤8.0V f=1kHz,Ripple 0.5Vp-p TYP 80 0.1 x0.98 800 30 0.35 0.30 0.25 0.20 0.15 0.12 0.05 50 -40°C≤TOPT≤ 85°C MAX 6.0 160 1.0 x1.02 100 0.45 0.35 0.30 0.25 0.20 0.18 0.30 ±100 VOUT=0V 40 RPD 1.25 VCEH VCEL 1.5 2.5 UNIT V µA µA V mA mV V V V V V V %/V dB ppm /°C mA 5 MΩ 0.25 V V TTSD Junction Temperature 150 °C TTSR Junction Temperature 120 °C UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 5 of 7 QW-R502-A62.b LR9270 Preliminary CMOS IC TEST CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 7 QW-R502-A62.b LR9270 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-A62.b