MAX768 Datasheet (Maxim) - Low-Noise / Dual-Output / Regulated Charge Pump for GaAsFET / LCD / and VCO Supplies

MAX768, Low-Noise / Dual-Output / Regulated Charge Pump for GaAsFET / LCD / and VCO Supplies

The MAX768 low-noise, dual-output, regulated charge pump provides a negative output for biasing GaAsFET power amplifiers, and a positive output for powering voltage-controlled oscillators (VCOs) in wireless handsets.

The outputs can also be used to power LCDs.

Output ripple is less than 2mVp-p.

The

MAX768 Features

* Dual Mode™ operation: the output voltage is preset to +5V and -5V, or can be adjusted by adding external resistor dividers. Other features include independent shutdowns and a logic output that signals when the negative voltage has risen to within 10% of its regulation setpoint (to protect the power