New Industry Products

ON Semiconductor Announces Availability of NCP7662 Inductorless DC/DC Converters

July 02, 2000 by Jeff Shepard

ON Semiconductor LLC (Phoenix, AZ) announced that it has made available the NCP7662 inductorless dc/dc converter. The NCP7662 is a monolithic, high-voltage, CMOS-switched capacitor voltage converter that ON Semiconductor claims offers unique performance advantages over the previously available industry standard 7660.

The NCP7662 provides several supply-voltage conversion functions, and can be used to either double or invert the output voltage. As an inverter, the NCP7662 converts an input range of 1.5V to 15V, to corresponding output voltages of -1.5V and -15V. As a voltage doubler, the device doubles the input voltage to a corresponding output and as a multiplier, the input voltage can be multiplied to produce the desired output-voltage value.

Only two non-critical external capacitors are needed for the charge pump and reservoir functions making this quite a compact, simple and cost-effective solution. The capacitors eliminate the EMI effects normally associated with inductors. The NCP7662 is equipped with a boost function that raises the internal oscillator frequency, from 10kHz up to 35kHz, to optimize performance in specific applications. It also offers improved ESD protection up to 10kV, 98 percent power-conversion efficiency for 2mA to 5mA of load current, efficient voltage conversion of 99.9 percent unloaded, and a low power-supply current of 80mA with 5V output.

The NCP7662 is available in both an eight-pin SOIC and an eight-pin PDIP package. Both versions of ON Semiconductor's charge pumps represent a pin-compatible upgrade to the industry standard 7660, and offer a drop-in replacement for competitive 7662 devices. Lower-frequency operation is programmable. Pricing for the NCP7662P is $1.36 per 10,000 units, and for the NCP7662DR2 is $1.26 per 10,000 units.