ICL7660S
Data Sheet April 1999 File Number
3179.2
Super Voltage Converter
The ICL7660S Super Voltage Converter is a mon...
ICL7660S
Data Sheet April 1999 File Number
3179.2
Super
Voltage Converter
The ICL7660S Super
Voltage Converter is a monolithic
CMOS voltage conversion IC that guarantees significant performance advantages over other similar devices. It is a direct replacement for the industry standard ICL7660 offering an extended operating supply
voltage range up to 12V, with lower supply current. No external diode is needed for the ICL7660S. In addition, a Frequency Boost pin has been incorporated to enable the user to achieve lower output impedance despite using smaller
capacitors. All improvements are highlighted in the Electrical Specifications section. Critical parameters are guaranteed over the entire commercial, industrial and military temperature ranges. The ICL7660S performs supply
voltage conversion from positive to negative for an input range of 1.5V to 12V, resulting in complementary output
voltages of -1.5V to -12V. Only 2 non-critical external
capacitors are needed for the charge pump and charge reservoir functions. The ICL7660S can be connected to function as a
voltage doubler and will generate up to 22.8V with a 12V input. It can also be used as a
voltage multiplier or
voltage divider. The chip contains a series DC power supply regulator, RC oscillator,
voltage level translator, and four output power MOS switches. The oscillator, when unloaded, oscillates at a nominal frequency of 10kHz for an input supply
voltage of 5.0V. This frequency can be lowered by the addition of an e...