LTC3218 - 400mA Single Wire Camera LED Charge Pump

The LTC3218 is a low-noise, high-current Charge Pump DC/DC converter capable of driving high current LEDs at up to 400mA from a 2.9V to 4.5V input. A low external parts count (one flying capacitor, two programming resistors and two bypass capacitors at VIN and CPO) make the LTC3218 ideally suited for small, battery-powered applications. Built-in soft-start circuitry prevents excessive inrush current during start-up. High switching frequency enables the use of small external capacitors. A built-in 2-second Timer protects the LED during Flash mode.
Output current level is programmed by an external resistor. LED current is regulated using an internal high side 220m sense resistor. Automatic mode switching optimizes efficiency by monitoring the voltage across the Charge Pump and switching modes only when dropout is detected. The part is available in a low profile 3mm 2mm 10-lead DFN package.
By Linear Technology Corporation
LTC3218 's PackagesLTC3218 's pdf datasheet
LTC3218EDDB-TRMPBF DFN
LTC3218EDDB-TRPBF DFN




LTC3218 Pinout, Pinouts
LTC3218 pinout,Pin out
This is one package pinout of LTC3218,If you need more pinouts please download LTC3218's pdf datasheet.

LTC3218 Application circuits
LTC3218 circuits
This is one application circuit of LTC3218,If you need more circuits,please download LTC3218's pdf datasheet.


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