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LTC1429 Clock-Synchronized Switched Capacitor Regulated Voltage Inverter
FEATURES
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DESCRIPTION
The LTC ®1429 is a switched-capacitor voltage inverter designed to provide a regulated negative voltage from a single positive supply and permits clock synchronization in noise sensitive systems. The LTC1429CS operates from a single 3V to 8V supply and provides an adjustable output voltage from – 1.25V to – 8V. An on-chip resistor string allows the LTC1429CS to be configured for output voltages of – 3.5V, –4V, –4.5V or – 5V. The LTC1429CS8 is optimized for applications which require a fixed –4V output from a 5V supply and requires only a single external 0.1µF flying capacitor. The LTC1429CS requires one or two external 0.1µF capacitors, depending on input voltage.