LTC3200ES6-5#TRMPBF

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 both output and input ripple. The LTC3200/LTC3200-5 have thermal shutdown capability and can survive a continuous shortcircuit 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 <1µA. The LTC3200 is available in an 8-pin MSOP package and the LTC3200-5 is available in a 6-pin ThinSOT.

Applications

• White LED Backlighting
• Li-Ion Battery Backup Supplies
• Local 3V to 5V Conversion
• Smart Card Readers
• PCMCIA Local 5V Supplies

Key features

• Low Noise Constant Frequency Operation
• Output Current: 100mA
• Available in 8-Pin MSOP (LTC3200) and Low Profile (1mm) 6-Pin ThinSOT (LTC3200-5) Packages
• 2MHz Switching Frequency
• Fixed 5V±4% Output (LTC3200-5) or ADJ VIN Range: 2.7V to 4.5V
• Automatic Soft-Start Reduces Inrush Current
• No Inductors
• ICC <1µA in Shutdown