DESCRIPTION

The AIC1848 charge pump is a micropower charge pump DC/DC converter that produces a egulated output voltage from 2.7V to 4.5V input voltage. Low external-part count (one flying capacitor and two small bypass capacitors) makes the AIC1848 ideal for small, battery-powered applications.

FEATURES

• Regulated ±4 Output Voltage

• Output Current: 100mA at VIN =3.1V

• Input Range: 2.7V to 4.5V

• No Inductors Required

• Very Low Shutdown Current: <1µA

• 1.8MHz Switching Frequency

• Short-Circuit and Over Temperature Protection

• Low Profile Package: SOT-23-6

APPLICATIONS

• White LEDs Backlighting

• SIM Interface Supplies for Cellular Telephones

• Li-Ion Battery Backup Supplies

• Local 3V to 5V Conversion

• Smart Card Readers

• PCMCIA Local 5V Supplies