LTC1775 - High Power No RSENSE Current Mode Synchronous Step-Down Switching Regulator

Features
  • Highest Efficiency Current Mode Controller
  • No Sense Resistor Required
  • 300mV Maximum Current Sense Voltage
  • Stable High Current Operation
  • Dual N-Channel MOSFET Synchronous Drive
  • Wide VIN Range: 4V to 36V
  • Wide VOUT Range: 1.19V to VIN
  • ±1% 1.19V Reference
  • Programmable Fixed Frequency with Injection Lock
  • Very Low Drop Out Operation: 99% Duty Cycle
  • Forced Continuous Mode Control Pin
  • Optional Programmable Soft Start
  • Pin Selectable Output Voltage
  • Foldback Current Limit
  • Output Overvoltage Protection
  • Logic Controlled Micropower Shutdown: IQ< 30µA
  • Available in 16-Lead Narrow SSOP and SO Packages
Typical Application

Applications
  • Notebook Computers
  • Automotive Electronics
  • Battery Chargers
  • Distributed Power Systems
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC1775CGN#PBFSSOP-16C$5.90$5.00
LTC1775CGN#TRPBFSSOP-16C$5.06
LTC1775CS#PBFSO-16C$5.55$4.65
LTC1775CS#TRPBFSO-16C$4.71
LTC1775IGN#PBFSSOP-16I$7.35$6.00
LTC1775IGN#TRPBFSSOP-16I$6.06
LTC1775IS#PBFSO-16I$6.85$5.60
LTC1775IS#TRPBFSO-16I$5.66
Demo Boards
Part NumberDescriptionPrice
DC337ALTC1775CS | High Power, No Rsense Current Mode Stepdown Controller, 4.5~28Vin, 3.3 or 5Vout @ 10A, Vout Adj. 2.5~12V$125.00
Datasheet
Reliability Data
LT Journal
Related Product
LTC1775 - High Power No Rsense Current Mode Synchronous Step-Down Switching Regulator
R302 Reliability Data
Sep 2000 High Current Positive-to-Negative Conversion with the LTC1775 No Rsense Controller
LTC1775 Footprints and Symbols