The ADM8828/ADM8829 is a charge-pump voltage inverter which may be used to generate a negative supply from a positive input. Input voltages ranging from +1.5 V to +5.5 V can be inverted into a negative –1.5 V to –5.5 V output supply. This inverting scheme is ideal for generating a negative rail in single power-supply systems. Only two small external capacitors are needed for the charge pump. Output currents up to 25 mA with greater than 99% efficiency are achievable.
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|ADM8828/ADM8829: Switched-Capacitor Voltage Inverter With Shutdown Data Sheet (Rev A, 10/1999) (pdf, 71 kB)||Data Sheets|
|Charge Pumps Products (March 2003) (pdf, 848 kB)||Solutions Bulletins|
Charge Pump Application Bulletin
(pdf, 970 kB)
All new applications guide for charge pumps
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