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MAX8678 - White LED Charge Pump

MAX8678 Description

www.DataSheet4U.com 19-0786; Rev 0; 4/07 White LED Charge Pump with 1.1W Audio Amplifier General .
The MAX8678 integrates a charge pump for white lightemitting diodes (LEDs) with an audio loudspeaker amplifier.

MAX8678 Features

* High-Efficiency White LED Charge Pump Individual Adaptive Supply for Each LED 4 Low-Dropout LED Current Regulators 24mA to 0.1mA Dimming Range Single-Wire, Serial-Pulse Dimming Interface 1% (typ) Accuracy Low 140µA Quiescent Current
* Mono Class AB Audio Amplifier 1.1W RMS Mono BTL

MAX8678 Applications

* Cell Phones and Smartphones Camera Phones PDAs, Digital Cameras, Camcorders +Denotes a lead-free package. Typical Operating Circuit INPUT 2.7V TO 5.5V 1μF Note: The device is specified over the -40°C to +85°C extended temperature range. Pin Configuration LED4 LED3 LED2 10 CLED1 9 TOP VIEW C+ IN

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