ADI LT3591EDDB#TRMPBF

DC DC 稳压器2.5V12V500mA（开关）

Overview

The LT3591EDDB is a fixed frequency step-up DC/DC converter specifically designed to drive up to ten white LEDs in series from a Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The device features a unique high side LED current sense that enables the part to function as a “one wire current source;” one side of the LED string can be returned to ground anywhere, allowing a simpler one wire LED connection. Traditional LED drivers use a grounded resistor to sense LED current, requiring a 2-wire connection to the LED string.

The high switching frequency allows the use of tiny inductors and capacitors. A single pin performs both shutdown and accurate LED dimming control. Few external components are needed: open-LED protection and the Schottky diode are all contained inside a low profile 3mm × 2mm DFN package.

Features

Tape & Reel (TR) Package
Available in the DFN package
Frequency of 1.2MHz

Surface Mount Mounting Type

Applications

There are a lot of Analog Devices, Inc.
LT3591EDDB#TRMPBF LED Driver ICs applications.

• Portable lighting
• Gallery lighting
• Museum lighting
• High-end retail lighting
• Medical surgery lighting
• Replacement lamps
• Panel lighting
• Down lights
• Linear fluorescent
• A- lamps