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MAX868EUB Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX868EUB Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 12 page Regulated, Adjustable -2x Inverting Charge Pump 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VIN = +3.3V, SHDN = IN, C1 = C2 = 0.22µF, CIN = 1µF, COUT = 10µF, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. IN to GND .................................................................-0.3V to +6V OUT to GND ...........................................................+0.3V to -12V IN to OUT.................................................................-0.3V to -17V C1+ to GND ........................................(VIN - 12V) to (VIN + 0.3V) C1- to GND.............................................................+0.3V to -12V C2+ to GND ....................................................(VIN + 0.3V) to -6V C2- to GND...............................................................+0.3V to -6V SHDN, FB to GND .......................................-0.3V to (VIN + 0.3V) PGND to GND .......................................................-0.3V to +0.3V Output Current ....................................................................35mA Short-Circuit Duration.................................................Continuous Continuous Power Dissipation (TA = +70°C) 10-pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW Operating Temperature Range MAX868EUB ....................................................-40°C to +85°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300°C FB = IN No load, VFB = -50mV RL = 3kΩ to GND VIN = 5.5V, SHDN = IN or GND VIN = 1.8V to 5.5V SHDN = GND (OUT pulls to GND) VIN = 1.8V to 5.5V, TA = +25°C IOUT = 5mA, FB = IN No load, SHDN = GND VFB = 50mV Closed loop VOUT = -5V CONDITIONS nA -100 1 100 SHDN Input Bias Current V 0.7VIN VIH SHDN Input Threshold 0.3VIN VIL nA -50 1 50 FB Input Bias Current mA 30 IOUT Output Current 12 mA 5 IIN Supply Current µA 30 50 V 1.8 5.5 VIN Supply-Voltage Range mV -30 30 15 50 ROUT Open-Loop Output Resistance Ω 125 70 100 µA 0.1 1 IIN,SHDN Shutdown Current kHz 293 450 607 Oscillator Frequency 270 630 fOSC Ω 0.2 ROUT,CL Closed-Loop Output Resistance UNITS MIN TYP MAX SYMBOL PARAMETER TA = +25°C TA = 0°C to +85°C TA = +25°C TA = 0°C to +85°C VIN = 3.3V, VOUT = -5V VIN = 5V, VOUT = -3.3V VIN = 1.8V to 5.5V mV -40 40 FB Trip Point TA = 0°C to +85°C TA = +25°C |
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