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CAT4201: LED Driver, 350 mA, Step-Down Converter

Overview
Specifications
Packages
Applications
Datasheet: LED Driver, 350 mA, Step-Down Converter
Rev. 8 (177.0kB)
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»Product Change Notification (2)
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Product Overview
Product Description
The CAT4201 is a high efficiency step-down converter optimized to drive high current LEDs. A patented switching control algorithm allows highly efficient and accurate LED current regulation. A single RSET resistor sets the full scale LED string current up to 350 mA from supplies as high as 36 V.

The switching architecture of the CAT4201 results in extremely low internal power dissipation allowing the device to be housed in a tiny package without the need for dedicated heat sinking. The device is compatible with switching frequencies of up to 1 MHz, making it ideal for applications requiring small footprint and low value external inductors.

Analog dimming and LED shutdown control is provided via a single input pin, CTRL. Additional features include overload current protection and thermal shutdown.
Features   Benefits
     
  • Power Efficiency up to 94%
 
  • Smaller, more efficient alternative to linear regulators for driving high-brightness LEDs in step-down applications.
  • LED Drive Current up to 350 mA
   
  • Compatible with 12 V and 24 V Standard Systems
   
  • Handles transients up to 40 V
   
  • Single Pin Control and Dimming function
   
  • Drives LED Strings of up to 32 V
   
  • Open and Short LED Protection
   
  • Parallel Configuration for Higher Output Current
   
Applications   End Products
  • 12 V and 24 V Lighting Systems
  • High Brightness 350 mA LEDs
 
  • Automobiles and Aircraft
  • General Lighting
Technical Documentation & Design Resources
Design Notes (1) Package Drawings (2)
Application Notes (1) Evaluation Board Documents (5)
Data Sheets (1)  
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
CAT4201AGEVB Active
Pb-free
High Efficiency Step-Down Converter Evaluation Board
Avnet (2015-07-09) : 2
Digikey (2015-07-09) : 2
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
CAT4201TD-GT3 Active
Pb-free
Halide free
LED Driver, 350 mA, Step-Down Converter TSOT-23-5 419AE 1 Tape and Reel 3000 $0.7333
CAT4201V-GT3 Obsolete
Pb-free
Halide free
LED Driver, 350 mA, Step-Down Converter SOIC-8 751BD 1 Tape and Reel 3000  
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) : 2 to 4
Avnet   (2015-07-09) : >1K
Chip1Stop   (2015-07-09) : >1K
Digikey   (2015-07-09) : >10K
Mouser   (2015-07-09) : >1K
ON Semiconductor   (2015-07-08) : 6,000
PandS   (2015-07-09) : >1K
Market Leadtime (weeks) : Contact Factory
Datasheet: LED Driver, 350 mA, Step-Down Converter
Rev. 8 (177.0kB)
»View Material Composition
»Product Change Notification (2)
GreenPoint® Design Tool
Product Overview

Product Compliance Status Description Topology VIN Min (V) VIN Max (V) VO Max (V) IO Max (mA) fSW Typ (kHz) Package Type
 Pb-free 
 Halide free 
 Active     LED Driver, 350 mA, Step-Down Converter   Step-Down   7   36   32   350   1000   TSOT-23-5 
Datasheet: LED Driver, 350 mA, Step-Down Converter
Rev. 8 (177.0kB)
»View Material Composition
»Product Change Notification (2)
GreenPoint® Design Tool
Product Overview
Case Outlines
751BD    419AE   
Packages
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