SP6660

® SP6660 200mA Charge Pump Inverter or Doubler s Inverts or Doubles Input Supply Voltage s 93% Power Efficiency at 3.6V s 10kHz/80kHz Selectable Oscillator s External Oscillator up to 700KHz s 5Ω Output Resistance at 3.6V s Low Voltage Battery Operation s Ideal for 3.6V Lithium Ion Battery s High Output Current – 200mA s Pin-Compatible High-Current Upgrade of the ICL7660 and 660 Industry Standard s Smallest Package Available for the 660 Industry Standard – 8pin µSOIC DESCRIPTION The SP6660 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 -4.25V output can be converted from a +1.5V to +4.25V input. As a Voltage Doubler, the SP6660 can provide a +8.0V output at 100mA from a +4.25V input. The SP6660 is ideal for both battery-powered and board level voltage conversion applications with a typical operating current of 400µA and a high efficiency (>90%) over most of its load-current range. Typical end products for this device are operational amplifier and interface power supplies, medical instruments, and handheld and laptop computers. The SP6660 is available in 8-pin DIP, SOIC, and µSOIC packages. TYPICAL CIRCUIT: VOLTAGE INVERTER +VIN +1.5V to +4.25V TYPICAL CIRCUIT: VOLTAGE DOUBLER FC CAP+ GND C1 1µF to 150µF CAP- 1 +V 8 +VIN +1.5V to +4.25V FC 1 CAP+ GND +V 8 2 3 SP6660 7 LV 6 OSC 2 3 DOUBLE VOLTAGE OUTPUT SP6660 7 LV OSC C2 1µF to 150µF 4 5 OUT NEGATI...