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LTC3265 Datasheet(PDF) 3 Page - Linear Technology |
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LTC3265 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 20 page  LTC3265 3 3265fa For more information www.linear.com/LTC3265 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN_P = VIN_N = EN+ = EN– = 10V, MODE = 0V, RT = 200kΩ SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Boost Charge Pump VIN_P VIN_P Input Voltage Range l 4.5 16 V VUVLO VIN_P Undervoltage Lockout Threshold VIN_P Rising VIN_P Falling l l 3.4 3.8 3.6 4 V V IVIN_P VIN_P Quiescent Current Shutdown, EN+ = EN– = 0V MODE = VIN_P, EN– = 0V, IVOUT+ = ILDO+ = 0mA MODE = VIN_P, IVOUT = ILDO+ = ILDO– = 0mA MODE = 0V, IVOUT+ = 0mA 3 85 110 3 6 170 220 6 µA µA µA mA VRT RT Regulation Voltage 1.200 V VOUT+ VOUT+ Regulation Voltage MODE = 10V MODE = 0V 2 • 0.94 • VIN_P 2 • VIN_P V V fOSC Oscillator Frequency RT = GND 450 500 550 kHz ROUTBST Boost Charge Pump Output Impedance MODE = 0V, RT = GND 32 Ω IVOUT+(SC) Max IVOUT+ Short-Circuit Current VOUT+ = GND l 100 220 300 mA VMODE(H) MODE Threshold Rising l 1.1 2 V VMODE(L) MODE Threshold Falling l 0.4 1.0 V IMODE MODE Pin Internal Pull-Down Current VIN_P = MODE = 16V 0.7 µA Inverting Charge Pump VIN_N VIN_N Input Voltage Range l 4.5 32 V IVIN_N VIN_N Quiescent Current Shutdown, EN– = 0V MODE = VIN_P, IVOUT– = ILDO– = 0mA MODE = 0V, IVOUT– = 0mA 1 25 3 3 50 5 µA µA mA VOUT– VOUT– Regulation Voltage MODE = 10V MODE = 0V –0.94 • VIN_N –VIN_N V V ROUTINV Inverting Charge Pump Output Impedance MODE = 0V, RT = GND 32 Ω IVOUT–(SC) Max IVOUT– Short-Circuit Current VOUT– = GND, |IVOUT–| l 100 160 250 mA Positive Regulator LDO+ Output Voltage Range l 1.2 32 V VADJ+ ADJ+ Reference Voltage ILDO+ = 1mA l 1.176 1.200 1.224 V IADJ+ ADJ+ Input Current VADJ+ = 1.2V –50 50 nA ILDO+(SC) LDO+ Short-Circuit Current l 50 100 mA Line Regulation 0.04 mV/V Load Regulation 0.03 mV/mA VDROPOUT+ LDO+ Dropout Voltage ILDO+ = 50mA 400 800 mV Output Voltage Noise CBYP+ = 100nF 100 µVRMS VEN+(H) EN+ Threshold Rising l 1.1 2 V VEN+(L) EN+ Threshold Falling l 0.4 1.0 V IEN+ EN+ Pin Internal Pull-Down Current VIN_P = EN+ = 16V 0.7 µA Negative Regulator LDO– Output Voltage Range l –32 –1.2 V VADJ– ADJ– Reference Voltage ILDO– = –1mA l –1.224 –1.200 –1.176 V IADJ– ADJ– Input Current VADJ– = –1.2V –50 50 nA ILDO–(SC) LDO– Short-Circuit Current |ILDO–| l 50 100 mA |
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