PJ1117SQ-5.0

PJ1117SQ Low Dropout Regulators SOT-89 Description PJ1117SQ is a low-dropout three-terminal Linear regulator circuit with positive 2.VOUT voltage output. It is divided into two versions, Fixed voltage output version and Adjustable voltage output version：The fixed output voltage is 1.2V、1.8V、2.5V、3.3V、5V and the adjustable version can provide the output voltage from 1.25V to 5V with only 2 external resistors. 1.GND/ADJ 2.VOUT 3.VIN Features ⚫ Range of operation input voltage : Max.15V ⚫ Current limiting function ⚫ Thermal Shutdown ⚫ Operation Ambient Temperature : -40~85°C Applications ⚫ LCD Monitor and LCD TV ⚫ DVD Decode Boar ⚫ ADSL Modem Functional Pin Description Pin Name GND/ADJ VOUT VIN Pin Function Ground/Adjustable Pin Output Voltage Power Input Voltage Marking Code 1117 -XX XX:Output Voltage e.g. 18:1.8V 33:3.3V www.pingjingsemi.com Revision：4.0 Nov-2021 1/7 PJ1117SQ Low Dropout Regulators Ordering Information PJ1117SQ- Output Voltage 12 : 1.2V 18 : 1.8V 25 : 2.5V 33 : 3.3V 50 : 5.0V Package Type SQ : SOT-89 Function Block Diagram www.pingjingsemi.com Revision：4.0 Nov-2021 2/7 PJ1117SQ Low Dropout Regulators Absolute Maximum Ratings Ratings at 25℃ ambient temperature unless otherwise specified. Parameter Symbol Rating Unit Supply Voltage VIN 18 V Junction Temperature TJ 150 °C Storage Temperature TSTG -40 to +150 °C Thermal Resistance Junction-to-Ambient RθJA 45 °C/W Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. Recommended Operating Conditions Parameter Symbol Rating Unit Recommended Maximum Input Voltage VIN 15 V Recommended Operating Junction Temperature Topr -40 to +85 °C www.pingjingsemi.com Revision：4.0 Nov-2021 3/7 PJ1117SQ Low Dropout Regulators Fixed Voltage Output Version Electrical Characteristics (TA=25℃ , unless otherwise noted.) Parameter Symbol Test Conditions Min. Typ. Max. Unit Output Voltage Accuracy ∆VOUT 0≤IOUT≤1A,VIN=VOUT+2V -2 -- +2 % -- 2 5 mA -- 2 5 mA IOUT=100mA -- 1.15 1.3 V IOUT=1A -- 1.3 1.5 V -- 0.03 0.2 VOUT=1.2V Quiescent Current IQ IOUT=0mA, VIN=10V 1.8V≤VOUT≤5V IOUT=0mA, VIN=12V Dropout Voltage VDROP VOUT=1.2V Line Regulation ∆VLINE IOUT=10mA, 2.7V≤VIN≤10V 1.8V≤VOUT≤5V IOUT=10mA, VOUT+1.5V≤VIN≤12V Load Regulation ∆VLOAD Temperature coefficien ∆V/∆T 10mA≤IOUT≤1A, VIN=VOUT+1.5V %/V -- 0.03 0.2 -- -- 36 mV -- +100 -- ppm Adjustable Voltage Output Version Electrical Characteristics (TA=25℃ , unless otherwise noted.) Parameter Symbol Test Conditions Min. Typ. Max. Unit Vref 10mA≤IOUT≤1A , VIN=3.25V 1.225 1.25 1.275 V Line Regulation ∆VLINE IOUT=10mA, 2.75V≤VIN≤12V -- 0.03 0.2 %/V Load Regulation ∆VLOAD 10mA≤IOUT≤1A,VIN=2.75V -- 2 8 mV -- 2 10 mA Reference voltage Minimum load current Imin Adjust pin current Iadj 10mA≤IOUT≤1A, VIN=5V -- 55 120 μA Ichange 10mA≤IOUT≤1A, VIN=5V -- 0.2 10 μA Iadj change www.pingjingsemi.com Revision：4.0 Nov-2021 4/7 PJ1117SQ Low Dropout Regulators Typical Application Circuit PJ1117SQ has an adjustable version and six fixed versions (1.2V, 1.8V, 2.5V, 3.3V and 5V) Fixed Voltage Output Version PJ1117SQ C1:10uF C2:10uF 1. Recommend using 10uF tan capacitor as bypass capacitor (C1) for all application circuit. 2. Recommend using 10uF tan capacitor to assure circuit stability. Adjustable Voltage Output Version PJ1117SQ C1:10uF C2:10uF The output voltage of adjustable version follows the equation: VOUT=1.25×(1+R2/R1)+IAdj×R2. We can ignore IAdj because IAdj (about 50uA) is much less than the current of R1 (about 2~10mA). (1). To meet the minimum load current (>10mA) requirement, R1 is recommended to be 125ohm or lower. As PJ1117SQ-ADJ can keep itself stable at load current about 2mA, R1 is not allowed to be higher than 625Ω. (2). Using a bypass capacitor (CADJ) between the ADJ pin and ground can improve ripple rejection. This bypass capacitor prevents ripple from being amplified as the output voltage is increased. The impedance of CADJ should be less than R1 to prevent ripple from being amplified. As R1 is normally in the range of 100Ω~500Ω, the value of CADJ should satisfy this equation: 1/(2π×fripple×CADJ)