IR3448M

16A Highly Integrated Single Input Voltage Sync Buck Regulator

ParametricIR3448M
Iout16.0A
Input Voltage  min  max1.5V  21.0V
Internal Bias LDOYes
Output Voltage  min  max0.6V  18.0V
FeaturesRemote Sense + SYNC + smart LDO + feed-forward
PackagePQFN / 5 x 6 J
Switching Frequency  min  max300.0kHz  1500.0kHz
TechnologyPOL
TypeSingle Output
Moisture Sensitivity Level3
QualificationIndustrial
Sales Product NameIR3448M
OPNIR3448MTRPBF
Product Statusactive
Package NamePQFN-29L (5X6)
Completely lead freeno
Halogen freeyes
RoHS compliantyes
Packing Size4000
Packing TypeTAPE & REEL
Moisture Level2
Benefits:
  • Single 5V to 21V application
  • Wide Input Voltage Range from 1.5V to 21V with external Vcc
  • Output Voltage Range: 0.6V to 0.86*PVin
  • 0.5% accurate Reference Voltage
  • Enhanced line/load regulation with Feed-Forward
  • Programmable Switching Frequency up to 1.5MHz
  • Internal Digital Soft-Start
  • Enable input with Voltage Monitoring Capability
  • Remote Sense Amplifier with True Differential Voltage Sensing
  • Thermally compensated current limit and Hiccup Mode Over Current Protection
  • Smart LDO to enhance efficiency
  • External synchronization with Smooth Clocking
  • Dedicated output voltage sensing for power good indication and overvoltage protection which remains active even when Enable is low.
  • Enhanced Pre-Bias Start up
  • Body Braking to improve transient
  • Integrated MOSFET drivers and Bootstrap diode
  • Thermal Shut Down
  • Post Package trimmed rising edge dead-time
  • Programmable Power Good Output
  • Small Size 5mm x 6mm PQFN
  • Operating Junction Temp: -40°C where Tj is < 125°C
  • Lead-free, Halogen-free, and RoHS Compliant
Target Applications:
  • Desktop and Workstations
  • Graphic Boards
  • Netcom and Telecom
  • Point of Load
  • Servers and Storage
Data Sheet
TitleSizeDateVersion
Data Sheet - IR3448M,EN2.6 MB08 Jun 2013
EN IR3448M