LTC3524 - Adjustable TFT Bias Supply with WLED Driver

Features
  • Generates Three Adjustable, Low Noise Rails for Small/Medium TFT Displays
  • Drives Up to Ten White LEDs
  • LED Dimming and Open-Circuit Protection
  • Controlled Power-Up/Power-Down Sequencing
  • 1.5MHz Fixed Frequency, Low Noise Operation
  • VIN Range 2.5V to 6V, VOUT Range 3V to 6V
  • TFT Supply Efficiency Up to 90%
  • LED Supply Efficiency Up to 78%
  • Two independently Enabled LED Strings
  • 200 to 1 True Color PWM Dimming
  • Tiny External Solution
  • 24-Lead QFN Package (4mm x 4mm x 0.75mm)
Typical Application

Applications
  • PDAs, Palmtop Computers
  • Digital Still and Video Cameras
  • Handheld GPS
  • Portable Instrument Displays
  • Portable Media Players
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC3524EUF#PBF4x4 QFN-24E$3.22$2.25
LTC3524EUF#TRPBF4x4 QFN-24E$2.31
Demo Boards
Part NumberDescriptionPrice
DC1121ALTC3524EUF | Five Output Power Supply and LED Driver for Small to Med TFT-LCDs$125.00
Datasheet
Design Note
Reliability Data
Press Release
LTspice
Related Product
LTC3524 - Adjustable TFT Bias Supply with WLED Driver
DN440 - 采用 4mm X 4mm QFN 封装的通用型 TFT LCD 偏置电源和白光 LED 驱动器
R419 Reliability Data
LTC3524 - 采用 4mm x 4mm QFN 封装、具 LED 驱动器的可调 TFT 偏置电源用于 TFT-LCD
LTC3524 Footprints and Symbols
LTC3524 Demo Circuit - Adjustable TFT Bias Supply with WLED Driver (3.3V to 5V @ 25mA, 12.5V @ 2mA, -7.5V @ 2mA & 2-Strings of 4x LEDs @ 20mA)