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LR1108-18-AF5-R Datasheet(PDF) 4 Page - Unisonic Technologies |
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LR1108-18-AF5-R Datasheet(HTML) 4 Page - Unisonic Technologies |
4 / 6 page LR1108 CMOS IC UNISONICTECHNOLOGIESCO.,LTD 4 of 6 www.unisonic.com.tw QW-R102-031.B ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Input Voltage (Operating), (Note 10) 2.5~7.0 V Input Voltage (Survival) VIN -0.3~+7.5 V Shutdown Input Voltage VIN(SHDN) -0.3~VIN+0.3 V Output Voltage (Survival), (Note 4), (Note 5) VOUT -0.3~+7.5 V IOUT (Survival) Short Circuit Protected Maximum Voltage for ERROR Pin VIN+0.3 V Maximum Operating Current (DC) 1 A Power Dissipation (Note 2) PD Internally Limited Junction Temperature TJ +125 ℃ Operating Temperature TOPR -40~+125 ℃ Storage Temperature TSTG -65~+150 ℃ 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 Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range. (TJ = 25℃, VIN = VO(NOM) + 1V, IL = 10 mA, COUT = 2.2µF, VSD = VIN-0.3V, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage Tolerance (Note 6) VOUT 0 mA ≤ IL ≤ 1A VOUT +1 ≤ VIN≤ 7.0V -1.5 -3 0 +1.5 +3 % Output Voltage Line Regulation (Note 6) V △ OUT VOUT+1V<VIN<7.0V 0.05 % Output Voltage Load Regulation (Note 6) V △ OUT/I △ OUT 10 mA < IL < 1A 0.04 % Dropout Voltage (Note 8) VD IL = 1A 300 500 mV IL = 0 mA 200 Ground Pin Current In Normal Operation Mode IGND IL = 1A 300 uA Peak Output Current IO(PEAK) (Note 2) 600 800 mA SHORT CIRCUIT PROTECTION Short Circuit Current ISC 2 A OVER TEMPERATURE PROTECTION Shutdown Threshold TSHDN(THR) 165 ℃ Thermal Shutdown Hysteresis TSHDN(HYS) 10 ℃ SHUTDOWN INPUT Output = High VIN-0.3 VIN Shutdown Threshold VSHDN Output = Low 0 0.2 V Turn-off Delay tD(OFF) IL = 1A 20 µs Turn-on Delay tD(ON) IL = 1A 25 µs SD Input Current ISD VSD = VIN 1 nA ERROR FLAG COMPARATOR ERROR Flag Saturation VEF(SAT) ISINK = 100µA 0.02 0.1 V ERROR Flag Pin Leakage Current II(LEAK) 1 nA Threshold VT (Note 7) 5 10 16 % Threshold Hysteresis VTHR (Note 7) 2 5 8 % Flag Reset Delay tD 1 µs AC PARAMETERS VIN = VOUT + 1.5V COUT=100uF, VOUT = 3.3V 60 Ripple Rejection PSRR VIN = VOUT + 0.3V COUT=100uF, VOUT = 3.3V 40 dB Output Noise Density ρn(l/f) f = 120Hz 0.8 µV BW = 10Hz – 100kHz 150 Output Noise Voltage eN BW = 300Hz – 300kHz 100 µVrms |
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