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AIC1848

Regulated 5V Charge Pump In SOT23-6

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: <1uA
  • 1.8MHz Switching Frequency
  • Short-Circuit and Over Temperature Protection
  • Low Profile Package: SOT23-6
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
DESCRIPTION
The AIC1848 charge pump is a micropower charge pump DC/DC converter that produces a regulated 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.
The AIC1848 operates as a constant frequency mode switched capacitor voltage doubler to produce a regulated output and features with thermal shutdown capability and short circuit protection.
The AIC1848 is available in a space-saving SOT23-6 package.
TYPICAL APPLICATION


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