IR3871M

8A Highly Integrated Wide-Input Voltage, Synchronous Buck Regulator in a PQFN package.

ParametricIR3871M
Iout8.0A
Input Voltage  min  max3.0V  26.0V
Output Voltage  min  max0.5V  12.0V
FeaturesConstant On-Time + OVP no OTP
PackagePQFN / 5 x 6 G
Switching Frequency  min  max0.0kHz  1000.0kHz
TechnologyPOL
TypeSingle Output
Moisture Sensitivity Level2
QualificationIndustrial
Sales Product NameIR3871M
OPNIR3871MTRPBF
Product Statusactive
Package NamePQFN-22L (5 X 6)
Completely lead freeyes
Halogen freeyes
RoHS compliantyes
Packing Size4000
Packing TypeTAPE & REEL
Moisture Level2
Benefits:
  • Input Voltage Range: 3V to 26V
  • Output Voltage Range: 0.5V to 12V
  • Continuous 8A Load Capability
  • Constant On-Time control
  • Excellent Efficiency at very low output current levels
  • Compensation Loop not required
  • Programmable switching frequency, soft start, and over current protection
  • Power Good Output
  • Precision Voltage Reference (0.5V, + - 1%)
  • Pre-bias Start Up
  • Under/Over Voltage Fault Protection
  • Ultra small, low profile 5 x 6mm QFN Package
Target Applications:
  • Notebooks Portables
Data Sheet
TitleSizeDateVersion
Data Sheet - IR3871M,EN1 MB29 Apr 2010
Evaluation Boards
BoardFamilyDescriptionStatus
IRDC3871High Efficiency Integrated Point of Load DC-DC Voltage Regulator. Featuring IR3871 Voltage Regulator. Constant On-Time control with Programmable Switching Frequency,. Soft Start, and Over-Current Protection.. Pre-Bias Start Up, Enable Input, Power Good Output.. VIN = 8V to 19V, VOUT = 1.05V, FS = 300kHz, up to 8A.IR3871Mactive
EN IR3871M