产品型号: HC3185
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    The HC3185 is a low noise, constant frequency (400kHz) switched capacitor voltage doubler. It produce a regulated output voltage from a 2.8V to 4.5V input. Low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make the HC3185 ideally suited for small, battery-powered applications.
    The HC3185 have thermal shutdown capability and can survive a continuous short circuit from VOUT to GND. Built-in soft-start circuitry prevents excessive inrush current during start-up.
    High switching frequency enables the use of small ceramic capacitors. A low current shutdown feature disconnects the load from VIN and reduces quiescent current to <1uA.
    The HC3185 is available in the industry standard SOT-23-6L power packages.
       
Applications
•White LED Backlighting
•Li-Ion Battery Backup Supplies
•Local 3V to 5V Conversion
•Smart Card Readers
•PCMCIA Local 5V Supplies