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AT731

IAT
Part Number AT731
Manufacturer IAT
Description White LED Step-Up Converter
Published May 8, 2019
Detailed Description AT731 White LED Step-Up Converter FEATURES Inherently Matched LED Current High Efficiency: 84% Typical Drives Up to Four...
Datasheet PDF File AT731 PDF File

AT731
AT731

Overview
AT731 White LED Step-Up Converter FEATURES Inherently Matched LED Current High Efficiency: 84% Typical Drives Up to Four LEDs from a 3.
2V Supply Drives Up to Eight LEDs from a 5V Supply 36V Rugged Bipolar Switch Fast 1.
2MHz Switching Frequency Uses Tiny 1mm Tall Inductors Requires Only 0.
22µF Output Capacitor APPLICATION Cellular Phones PDAs, Handheld Computers Digital Cameras Mp3 Players GPS Receivers Immense Advance Tech.
DESCRIPTION The AT731 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current.
The device can drive two, three or four LEDs in series from a Li-lon cell.
Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors.
The output capacitor can be as small as 0.
22µF, saving space versus alternative solutions.
A low 95mV feedback voltage minimizes power loss for better efficiency.
The AT731 are available in SOT-25 and SOT-353 packages.
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