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AAT3156,pdf datasheet(High Eff

消耗积分:3 | 格式:rar | 大小:221 | 2010-01-30

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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 LED channels 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 1μF
flying capacitors and two small 1μF capacitors at VIN and VOUT) make this part ideally suited for small, batterypowered applications.
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