1. Products
  2. Power Management
  3. Display Control and Power
  4. CCFL Controllers
  5. LT1183


Features and Benefits

  • Wide Input Voltage Range: 3V to 30V
  • Low Quiescent Current
  • High Switching Frequency: 200kHz
  • CCFL Switch: 1.25A, LCD Switch: 625mA
  • Grounded or Floating Lamp Configurations
  • Open-Lamp Protection
  • Positive or Negative Contrast Capability

Product Details

The LT1182/LT1183 are dual current mode switching regulators that provide the control function for Cold Cathode Fluorescent Lighting (CCFL) and Liquid Crystal Display (LCD) Contrast. The LT1184/LT1184F provide only the CCFL function. The ICs include high current, high efficiency switches, an oscillator, a reference, output drive logic, control blocks and protection circuitry. The LT1182 permits positive or negative voltage LCD contrast operation. The LT1183 permits unipolar contrast operation and pins out an internal reference. The LT1182/LT1183 support grounded and floating lamp configurations. The LT1184F supports grounded and floating lamp configurations. The LT1184 supports only grounded lamp configurations.


  • Notebook and Palmtop Computers
  • Portable Instruments
  • Automotive Displays
  • Retail Terminals

Product Categories

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations


LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Models for the following parts are available in LTspice:


Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LT1183CS#PBF Material Declaration Reliability Data 16-Lead SOIC (Narrow 0.15 Inch)
LT1183CS#TRPBF Material Declaration Reliability Data 16-Lead SOIC (Narrow 0.15 Inch)
Wafer Fabrication Data R346 Reliability Data

PCN-PDN Information

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Sample & Buy

Ordering FAQs

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Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



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