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LD3870-3.8V 데이터시트(PDF) 2 Page - Unisonic Technologies |
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2 / 7 page UTC LD3870 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R102-027,B BLOCK DAGRAM + - VIN Cont GND Bandgap Reference Thermal Protection VOUT Noise Bypass ABSOLUTE MAXIMUM RATINGS (Ta=25℃) PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN +14 V Control Voltage VCONT +14(Note 1) V Power Dissipation PD 200 mW Operating Temperature Topr -40 ~ +85 ℃ Storage Temperature Tstg -40 ~ +125 ℃ Note 1: When input voltage is less than +14V,the absolute maximum control voltage is equal to the input voltage. ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.1μF, Co=4.7μF, Cp=0.01μF, Ta=25℃) PARAMETER SYMBOL TEST CONDITONS MIN. TYP. MAX. UNIT Output Voltage Vo Io=30mA -2% +2% V Quiescent Current IQ Io=0mA, expect lcont 200 300 μA Quiescent Current At Control OFF IQ(OFF) VCONT=0V 100 nA Output Current Io Vo-0.3V 150 200 mA Line Regulation △Vo/△VIN VIN=Vo+1V ~ Vo+6V, Io=30mA 0.10 %/V Load Regulation △Vo/△Io Io=0 ~ 100mA 0.03 %/mA Dropout Voltage △VI-o Io=60mA 0.12 0.2 V Ripple Rejection RR ein=200mVrms, f=1kHz, Io=10mA, VIN=Vo+2V, Vo=3V Version 60 dB Average Temperature Coefficient of Output Voltage △Vo/△Ta Ta=0~85℃, Io=10mA, Vo=3V Version 0.2 mV/℃ Output Noise Voltage VNO f=10Hz ~ 80kHz, Io=10mA, Vo=3V Version 30 μVrms Control Voltage for ON-state VCONT(ON) 1.6 V Control Voltage for OFF-state VCONT(OFF) 0.6 V Note 2: The above specification is a common specification for all output voltages.Therefore, it may be different from the individual specification for a specific output voltage. |
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