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AP3156

Part Number	AP3156
Manufacturer	Diodes
Description	HIGH EFFICIENCY 1X/1.5X/2X CHARGE PUMP
Published	Jul 8, 2010
Detailed Description	AP3156 www.DataSheet4U.com HIGH EFFICIENCY 1X/1.5X/2X CHARGE PUMP FOR WHITE LED APPLICATIONS Features • • VIN Range: ...
Datasheet	AP3156 PDF File

Overview

AP3156 www.
DataSheet4U.
com HIGH EFFICIENCY 1X/1.
5X/2X CHARGE PUMP FOR WHITE LED APPLICATIONS Features • • VIN Range: 2.
7V to 5.
5V Fully Programmable Current with Single Wire • 32-Step Logarithmic Scale • 20/25mA Max Current per Channel • Four Low Current Settings Down to 50µA • Low IQ (50µA) for Low Current Mode Tri-Mode 1X, 1.
5X, and 2X Charge Pump for Maximum Efficiency and VF Coverage Drives up to Six Channels of LEDs Individual Main/Sub-Group Control No Inductors, Low Noise Operation 0.
5/1/2MHz Constant Switching Frequency Small Application Circuit Built-In Thermal Protection Built-In Auto-Disable For Open Circuit Automatic Soft Start IQ <1µA in Shutdown Thermally-Enhanced QFN4040-16 ...

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