The LTC3200/LTC3200-5 are low noise, constant frequency switched capacitor voltage doublers. They produce a regulated output voltage from a 2.7V to 4.5V input with up to 100mA of output current. Low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make the LTC3200/LTC3200-5 ideally suited for small, battery-powered applications. A new charge-pump architecture maintains constant switching frequency to zero load and reduces bith output and input ripple. The LTC3200/LTC3200-5 have thermal shutdown capability and can survive a continuous short-circuit from VOUT to GND. Built-in soft-start circuitry prevents excessive inrush curreent 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 <1µA. The LTC3200 is available in an 8-pin MSOP package and the LTC3200-5 is available in a 6-pin SOT-23. Applications * Li-Ion Battery Backup Supplies * Local 3V to 5V Conversion * Smart Card Readers * PCMCIA Local 5V Supplies * White LED Backlighting * Low Noise Constant Frequency Operation * Output Current: 100mA * Fixed 5V ±4% Output (LTC3200-5) or ADJ * VIN Range: 2.7V to 4.5V * Automatic Soft-Start Reduces Inrush Current * 2MHz Switching Frequency * No Inductors * ICC < 1µA in Shutdown * Available in 8-Pin MSOP (LTC3200) and Low Profile (1mm) 6-Pin ThinSOT™ (LTC3200-5) Packages https://elecena.pl/product/256564/low-noise-regulated-charge-pump-dc-dc-converters 2007-03-03 https://elecena.pl/product/256564/low-noise-regulated-charge-pump-dc-dc-converters 2014-04-26 https://elecena.pl/product/256564/low-noise-regulated-charge-pump-dc-dc-converters 2025-01-22