AAT3156 | High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications

The AAT3156 is a low noise, constant frequency Charge Pump DC/DC converter that uses a tri-mode load Switch (1X), fractional (1.5X), and doubling (2X) conversion to maximize efficiency for white LED applications. The AAT3156 is capable of driving six-channel LEDs at a total of 180mA from a 2.7V to 5.5V input. The current sinks may be operated individually or in parallel for driving higher-current LEDs A low external parts count (two 1F flying capacitors and two small 1F capacitors at VIN and VOUT) make this part ideally suited for small battery-powered applications. AnalogicTech's AS2Cwire (Advanced Simple Serial Control) serial digital input is used to enable, disable, and set current for each LED with a 16-level logarithmic scale plus four low-current settings down to 50A for optimized efficiency, with a low housekeeping current of only 50A. Each output of the AAT3156 is equipped with built-in protection for VOUT short circuit and auto disable for LED failure condition. Built-in soft-start circuitry prevents excessive inrush current during start-up. A low current shutdown feature disconnects the load from VIN and reduces quiescent current to less than 1A. The AAT3156 is available in a space-saving, thermally-enhanced 16-pin 4x4mm QFN package. Note: Contact Sales for AAT3156 product availability.
By Advanced Analogic Technologies, Inc.
AAT3156 's PackagesAAT3156 's pdf datasheet
AAT3156ISN-T1 QFN




AAT3156 Pinout, Pinouts
AAT3156 pinout,Pin out
This is one package pinout of AAT3156,If you need more pinouts please download AAT3156's pdf datasheet.

AAT3156 Application circuits
AAT3156 circuits
This is one application circuit of AAT3156,If you need more circuits,please download AAT3156's pdf datasheet.


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