IR3473M

6A Programmable High Freq Sync Buck Regulator with onboard constant on time hysteretic controller and MOSFETs

ParametricIR3473M
Iout6.0A
Input Voltage  min  max3.0V  27.0V
Output Voltage  min  max0.5V  12.0V
FeaturesConstant On-Time + PGOOD + EN + Temp Comp OCP
PackagePQFN / 4 x 5
Switching Frequency  min  max0.0kHz  750.0kHz
TechnologyPOL
TypeSingle Output
Design ToolYes
Industrial 24V InputYes
Moisture Sensitivity Level2
QualificationIndustrial
Sales Product NameIR3473M
OPNIR3473MTRPBF
Product Statusactive
Package NamePQFN-24L (4X5)
Completely lead freeyes
Halogen freeyes
RoHS compliantyes
Packing Size4000
Packing TypeTAPE & REEL
Moisture Level2
Benefits:
  • Input Voltage Range: 3V to 27V
  • Output Voltage Range: 0.5V to 12V
  • Continuous 6A Load Capability
  • Constant On-Time Control
  • Compensation Loop not Required
  • Excellent Efficiency at Very Low Output Currents
  • Programmable Switching Frequency and Soft Start
  • Thermally Compensated Over Current Protection
  • Power Good Output
  • Precision Voltage Reference (0.5V, +/-1%)
  • Enable Input with Voltage Monitoring Capability
  • Pre-bias Start Up
  • Thermal Shut Down
  • Under/Over Voltage Fault Protection
  • Forced Continuous Conduction Mode Option
  • Very Small, Low Profile 4mm x 5mm QFN Package
Target Applications:
  • Notebooks Portables
  • Point of Load
功能框图
Data Sheet
TitleSizeDateVersion
Data Sheet - IR3473M,EN904 KB12 九月 2010
Evaluation Boards
BoardFamilyDescriptionStatus
IRDC3473Featuring IR3473 Voltage Regulator in a very small 4x5 QFN Package. Programmable Switching Frequency,. Thermally Compensated Over-Current Protection,. Soft Start, Pre-Bias Start Up, Enable Input, Power Good Output.. VIN = 8V to 19V, VOUT = 1.05V, FS = 300kHz, up to 6A.IR3473Mactive
EN IR3473M
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