MAX1681ESA Maxim Integrated Products, MAX1681ESA Datasheet
MAX1681ESA
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MAX1681ESA Summary of contents
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... Output Current 3.5Ω Output Impedance 1µA Logic-Controlled Shutdown Configurable as Voltage Inverters or Doublers +2.0V to +5.5V Input Voltage Range Available in 8-Pin SO Packages 90% Efficiency ______________Ordering Information PART MAX1680C/D MAX1680ESA MAX1681C/D MAX1681ESA * Contact factory for dice specifications. +V INPUT IN +3V TO +5. INPUT +4V TO +5.5V INVERTED ...
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Frequency-Selectable, Switched-Capacitor Voltage Converters ABSOLUTE MAXIMUM RATINGS IN ..............................................................................-0.3V to +6V LV....................................................(V OUT CAP+ ...........................................................-0. SHDN, FSEL ......................................(V LV OUT, CAP- ..................................................................-6V to 0.3V Continuous Output Current ..............................................135mA Output Short-Circuit Duration to GND (Note 1) ...................1sec Note ...
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Switched-Capacitor Voltage Converters ELECTRICAL CHARACTERISTICS (continued) ( Typical Operating Circuits (inverter configuration), FSEL = LV = GND, V (MAX1681 0°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Power Efficiency ELECTRICAL CHARACTERISTICS ( ...
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Frequency-Selectable, Switched-Capacitor Voltage Converters __________________________________________Typical Operating Characteristics (All curves generated using the inverter configuration shown in the Typical Operating Circuit s with LV = GND, FSEL = 10µF (MAX1680 ...
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Switched-Capacitor Voltage Converters ____________________________Typical Operating Characteristics (continued) (All curves generated using the inverter configuration shown in the Typical Operating Circuit s with LV = GND, FSEL = 10µF (MAX1680 ...
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Frequency-Selectable, Switched-Capacitor Voltage Converters ______________________________________________________________Pin Description PIN NAME Selects operating frequency. MAX1680: 250kHz when FSEL is low, 125kHz when FSEL is high. MAX1681: 1 FSEL 1MHz when FSEL is low, 500kHz when FSEL is high. 2 CAP+ Positive Charge-Pump ...
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Switched-Capacitor Voltage Converters Operating Frequency Trade-Offs It is important to recognize the trade-offs between switching frequency, power consumption, noise, cost, and performance. Higher frequency switching reduces capacitor size while maintaining the same output impedance, thus saving capacitor cost and board ...
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Frequency-Selectable, Switched-Capacitor Voltage Converters Table 4. Minimum Recommended Capacitances for Maximum Output Current f (kHz) OSC 125 2.5 250 1.2 500 0.6 1000 0.3 +V INPUT 1 F FSEL IN CAP+ SHDN MAX1681 GND LV ...
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Switched-Capacitor Voltage Converters FSEL IN CAP+ SHDN MAX1681 1 F GND LV CAP- OUT NOTE: USE 4.7 F CAPACITORS FOR MAX1680. Figure 2. Paralleling MAX1680/MAX1681s to Increase Output Current Combined Doubler and Inverter Figure 3 shows a single MAX1680/MAX1681 as ...
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Frequency-Selectable, Switched-Capacitor Voltage Converters Table 5. Device Comparison TYPICAL PART NUMBER QUIESCENT CURRENT (mA) MAX660 0.12/1.0 MAX665 0.20/1.0 MAX860 0.20/0.60/1.40 MAX861 0.30/1.10/2.50 MAX1680 2.5/5.0 MAX1681 10/20 ICL7660 0.080 __________________Pin Configuration TOP VIEW FSEL 1 8 CAP MAX1680 ...
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Switched-Capacitor Voltage Converters ________________________________________________________Package Information ______________________________________________________________________________________ 125mA, Frequency-Selectable, 11 ...
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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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1997 Maxim Integrated Products NOTES Printed USA is a registered trademark of Maxim Integrated Products ...