ADI LTC3214EDD#TRPBF

DC DC 稳压器2.9V4.5V500mA

Overview

The LTC3214EDD is a low noise, high current charge pump DC/DC converter capable of driving high current LEDs at up to 500mA from a 2.9V to 4.5V input. Low external parts count (two flying capacitors, one programming resistor and two bypass capacitors at VIN and CPO) make the LTC3214EDD ideally suited for small, battery-powered applications.

Output current level is programmed by an external resistor. LED current is regulated using an internal 110mΩ sense resistor. Automatic mode switching optimizes efficiency by monitoring the voltage across the charge pump and switching modes only when dropout is detected. The part is available in a low profile 3mm x 3mm 10-lead DFN package.

Features

Tape & Reel (TR) Package
Available in the 10-WFDFN Exposed Pad package
Operating temperature of -40°C~85°C TA
Frequency of 900kHz

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LTC3214EDD#TRPBF LED Driver ICs applications.

• Gallery lighting
• Museum lighting
• High-end retail lighting
• Medical surgery lighting
• Replacement lamps
• Panel lighting
• Down lights
• Linear fluorescent
• A- lamps
• General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights