ADM8828 Series

Switched-Capacitor Voltage Inverter with Shutdown

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Switched-Capacitor Voltage Inverter with Shutdown

Part	Topology	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Input (Min)	Function	Package / Case	Output Type	Frequency - Switching	Voltage - Output (Min/Fixed)	Number of Outputs	Voltage - Input (Max)	Synchronous Rectifier	Package Name	Mounting Type	Current - Output	Output Configuration
Analog Devices Inc./Maxim Integrated ADM8828ARTZ-REEL	Charge Pump	85 °C	-40 °C	1.5 V	Ratiometric	SOT-23-6	Fixed	120 kHz	-Vin	1	5.5 V	No	SOT-23-6	Surface Mount	25 mA	Negative
Analog Devices Inc./Maxim Integrated ADM8828ART-REEL7						SOT-23-6							SOT-23-6	Surface Mount
Analog Devices Inc./Maxim Integrated ADM8828ARTZ-REEL7	Charge Pump	85 °C	-40 °C	1.5 V	Ratiometric	SOT-23-6	Fixed	120 kHz	-Vin	1	5.5 V	No	SOT-23-6	Surface Mount	25 mA	Negative

Catalog

Switched-Capacitor Voltage Inverter with Shutdown

Description

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.The ADM8828 also features a low power shutdown (SHDN) pin. This can be used to disable the device and reduce the quiescent current to 20 nA.The ADM8828/ADM8829 is available in a 6-lead SOT-23 package.ApplicationsHandheld InstrumentsLCD PanelsCellular PhonesPDAsRemote Data AcquisitionOp Amp Power Supplies