General Description

The FAN5660 is a monolithic charge-pump which can invert, double or split a +1.5V to +5.5V input voltage. Using only two identical low-cost capacitors, the charge pump replaces switching regulators, thus eliminating inductors and their associated cost, size, and EMI. The device has a greater than 90 efficiency over most of its load current range and a typical operating current of only 160µA. The FAN5660 is ideal for both battery-powered and boardlevel voltage conversion applications.

Features

• Inverts, Doubles or Splits Input Supply Voltage

• 90 Typ Conversion Efficiency at 100mA load current

• 0.5V Typ Loss at 100mA Load

• Low 160µA Operating Current

• 5.0Ω Typ Output Resistance for C1 = C2 = 100µF

• Selectable Oscillator Frequency: 5kHz/50kHz

• 8-pin SOIC package.

Applications

• Laptop Computers

• Medical Instruments

• Interface Power Supplies

• Hand-Held Instruments

• Operational-Amplifier Power Supplies