MAX871EUK Maxim Integrated Products, MAX871EUK Datasheet
MAX871EUK
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MAX871EUK Summary of contents
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... Maxim’s website at www.maxim-ic.com. o 5-Pin SOT23-5 Package o 99% Voltage Conversion Efficiency o Invert Input Supply Voltage o 0.7mA Quiescent Current (MAX870) o +1.4V to +5.5V Input Voltage Range o Require Only Two Capacitors o 25mA Output Current o Shutdown Control PART MAX870EUK MAX871EUK TOP VIEW INPUT 2 IN SUPPLY VOLTAGE NEGATIVE 1 OUT OUTPUT ...
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... Continuous Power Dissipation (T SOT23-5 (derate 7.1mW/°C above +70°C)...................571mW + 0.3V) to -0.3V Operating Temperature Range IN - 0.3V) to +0.3V MAX870EUK/MAX871EUK ...............................-40°C to +85°C OUT Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10s) .................................+300°C = 0°C to +85°C, unless otherwise noted. Typical values A CONDITIONS ...
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Switched-Capacitor Voltage Inverters __________________________________________Typical Operating Characteristics (Circuit of Figure +5V C3 SUPPLY CURRENT vs. SUPPLY VOLTAGE 3.0 2.5 2.0 1.5 MAX871 1.0 MAX870 0.5 0 1.5 2.0 2.5 3.0 3.5 4.0 ...
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Switched-Capacitor Voltage Inverters ____________________________Typical Operating Characteristics (continued) (Circuit of Figure +5V C3 MAX870 EFFICIENCY vs. OUTPUT CURRENT 100 5. 3. ...
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Switched-Capacitor Voltage Inverters _______________Detailed Description The MAX870/MAX871 capacitive charge pumps invert the voltage applied to their input. For highest perfor- mance, use low equivalent series resistance (ESR) capacitors (e.g., ceramic). During the first half-cycle, switches S2 and S4 open, switches ...
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Switched-Capacitor Voltage Inverters Flying Capacitor (C1) Increasing the flying capacitor’s size reduces the output resistance. Small C1 values increase the output resis- tance. Above a certain point, increasing C1’s capaci- tance has a negligible effect, because the output resistance becomes ...
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Switched-Capacitor Voltage Inverters … MAX870 C1 C1 MAX871 “1” … C2 Figure 4. Cascading MAX870s or MAX871s to Increase Output Voltage Paralleling Devices Paralleling multiple MAX870s or MAX871s reduces the ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 2004 Maxim Integrated Products 3 ...