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

Datasheet: 350 mA High Efficiency Step Down LED Driver
Rev. 9 (129kB)
Product Overview
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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
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
CAT4201AGEVB Active
Pb-free
High Efficiency Step-Down Converter Evaluation Board
Availability & Samples
Specifications
Case Outlines
Application Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
CAT4201TD-GT3 Active
Pb-free
Halide free
CAT4201 TSOT-23-5 419AE 1 260 Tape and Reel 3000 $0.7226
CAT4201V-GT3 Obsolete
Pb-free
Halide free
CAT4201 SOIC-8 751BD 1 260 Tape and Reel 3000  
Market Leadtime (weeks) : Contact Factory
Avnet   (2020-08-19 00:00) : >10K
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
VIN Min (V)
VIN Max (V)
VO Max (V)
IO Max (mA)
fSW Typ (kHz)
Package Type
CAT4201TD-GT3  
 $0.7226 
Pb
H
 Active   
Step-Down
7
36
32
350
1000
TSOT-23-5
Case Outlines
751BD    419AE   
Packages
CAT4201: LED Driver, 350 mA, Step-Down Converter
CAT4201: LED Driver, 350 mA, Step-Down Converter
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