AIC1650
3-Cell, High-Efficiency, Inverting DC/DC Converter
FEATURES
4V to 20V Input
Voltage Operation.
Adjustable Output
Voltage up to -40V.
Low Quiescent Current at 100µA.
Pulse Frequency Modulation Maintains High Efficiency (max.
90%).
100KHz to 320KHz Switching Frequency.
Power-Saving Shutdown Mode (8µA Typical).
High Efficiency with Low Cost External PNP Bipolar Transistor.
DESCRIPTION
The AIC1650 is a high performance inverting DC/DC converter, designed to drive an external power switch to generate programmable negative
voltages.
In the particularly suitable LCD bias contrast application, maximum efficiency of 90% can be achieved with low cost PNP bipolar transistor drivers.
4V to 20V ...