Switched-Capacitor Voltage Inverter with Shutdown ADM8828/ADM8829
●The ADM8828/ADM8829 is a charge-pump voltage inverterwhich may be used to generate a negative supply from a positiveinput. Input voltages ranging from +1.5 V to +5.5 V can beinverted into a negative –1.5 V to –5.5 V output supply. Thisinverting scheme is ideal for generating a negative rail in singlepower-supply systems. Only two small external capacitors areneeded for the charge pump. Output currents up to 25 mA withgreater than 99% efficiency are achievable.
●The ADM8828 also features a low power shutdown (SHDN)pin. This can be used to disable the device and reduce the quies-cent current to 20 nA.
●The ADM8828/ADM8829 is available in a 6-lead SOT-23package.
■FEATURES
●Inverts Input Supply Voltage
●99% Voltage Conversion Efficiency
●25 mA Output Current
●Shutdown Function
●Requires Only Two Capacitors
●1 μF Capacitors
●18 Ω Output Resistance
●+1.5 V to +5.5 V Input Range
●600 μA Quiescent Current
●20 μA Shutdown Current (ADM8828)
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ADM8828 、 ADM8829 、 ADM8828ARTZ-REEL7 、 ADM8829ARTZ-REEL 、 ADM8829ARTZ-REEL7 |
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[ Handheld Instruments ][ LCD Panels ][ Cellular Phones ][ PDAs ][ Remote Data Acquisition ][ Op Amp Power Supplies ] |
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Datasheet |
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Please see the document for details |
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SOT-23;RJ-6 |
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English Chinese Chinese and English Japanese |
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5/2019 |
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Rev. B |
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D03352-0-5/19(B) |
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250 KB |
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