DESCRIPTION

The CAT660 is a charge-pump voltage converter. It will invert a 1.5V to 5.5V input to a -1.5V to -5.5V output. Only two external capacitors are needed. With a guaranteed 100mA output current capability, the CAT660 can replace a switching regulator and its inductor. Lower EMI is achieved due to the absence of an inductor.

FEATURES

■ Replaces MAX660 and LTC?660

■ Converts V+ to V- or V+ to 2V+

■ Low output resistance, 4? typical

■ High power efficiency

■ Selectable charge pump frequency

- 10kHz or 80kHz

- Optimize capacitor size

■ Low quiescent current

■ Pin-compatible, high-current alternative to 7660/1044

■ Industrial temperature range

■ Available in 8-pin SOIC, DIP and 0.8mm thin 8- pad TDFN packages

- Lead-free, halogen-free package option

APPLICATIONS

■ Negative voltage generator

■ Voltage doubler

■ Voltage splitter

■ Low EMI power source

■ GaAs FET biasing

■ Lithium battery power supply

■ Instrumentation

■ LCD contrast bias

■ Cellular phones, pagers