DESCRIPTION

The SP6661 is a CMOS DC-DC Monolithic Voltage Converter that can be implemented as a Voltage Inverter or a Positive Voltage Doubler. As a Voltage Inverter, a -1.5V to -5.0V output can be converted from a +1.5V to +5.0V input. As a Voltage Doubler, a +5.0V to +10.0V output can be provided from a +2.5V to +5.0V input. TheSP6661 is ideal for both battery-powered and board level voltage conversion applications with a typical operating current of 3mA and a high efficiency (>90%) over most of its load-current range. Typical end products for this device are disk drive supplies, operational amplifier and interface power supplies, medical instruments, and hand held and laptop computers. The SP6661 is available in 8-pin NSOIC, and µSOIC packages.

FEATURES

■ Inverts or Doubles Input Supply Voltage

■ 92% Power Efficiency at 100mA

■ 120kHz/900kHz Selectable Oscillator Frequency

■ 4.5Ω Output Resistance Using 3.3µF Ceramic Caps

■ Low Voltage Battery Operation

■ Ideal for 3.6V Lithium Ion Battery or 5.0V Input

■ High Output Current – 200mA

■ Low Profile Solution

■ 1.5V Inverter Startup Guaranteed

■ Pin-Compatible High-Current Upgrade of the ICL7660 and 660 Industry Standard

■ Smallest Package Available for the 660 Industry Standard – 8 pin MSOP