LTC1736 - 5-Bit Adjustable High Efficiency Synchronous Step-Down Switching Regulator

Features
  • Dual N-Channel MOSFET Synchronous Drive
  • Synchronizable/Programmable Fixed Frequency
  • Wide VIN Range: 3.5V to 36V Operation
  • 5-Bit Digital-to-Analog VOUT Selection: 0.925V to 2.00V Range with 50mV/25mV Steps
  • OPTI-LOOP™ Compensation Minimizes COUT
  • ±1% Output Voltage Accuracy
  • Power Good Output Voltage Monitor
  • Output Overvoltage Crowbar Protection
  • Internal Current Foldback
  • Latched Short-Circuit Shutdown Timer with Defeat Option
  • Forced Continuous Control Pin
  • Optional Programmable Soft-Start
  • Remote Output Voltage Sense
  • Available in 24-Lead SSOP Package
Typical Application
Applications
  • Notebook and Palmtop Computers, PDAs
  • Power Supply for Mobile Pentium® II and Pentium III Processors
  • Low Voltage Power Supplies
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC1736CG#PBFSSOP-24C$4.15$3.50
LTC1736CG#TRPBFSSOP-24C$3.60
LTC1736IG#PBFSSOP-24I$5.65$4.65
LTC1736IG#TRPBFSSOP-24I$4.75
Demo Boards
Part NumberDescriptionPrice
DC252ALTC1736CG | 5 Bit, VID CPU Power Converter, Vin = 5V to 24V, Vout = 0.9V to 2.0V @ 12A$150.00
DC279A-BLTC1736, LTC1772, LTC1762 | Low Cost VRM (Intel), 7.5 to 24Vin, 1.3V to 1.6Vout @ 14A, 1.5Vout @ 0.12 to 2.5A, 2.5Vout @ 0.15AContact Factory
Datasheet
Application Note
Design Note
Reliability Data
LT Journal
Related Product
LTC1736 - 5-Bit Adjustable High Efficiency Synchronous Step-Down Switching Regulator
AN76 - OPTI-LOOP Architecture Reduces Output Capacitance and Improves Transient Response
Design Solutions 10 - Active Voltage Positioning Reduces Output Capacitors
Design Solutions 9 - 2-Phase DC/DC Controller Reduces Capacitanceand Increases Battery Life in Portable Applications
DN199 - LTC1735 Provides Low Cost, Efficient Mobile CPU Power
DN209 - 2-Step Voltage Regulation Improves Performance and Decreases CPU Temperature in Portable Computers
DN224 - Active Voltage Positioning Reduces Output Capacitors
R384 Reliability Data
Feb 1999 Third-Generation DC/DC Controllers Reduce Size and Cost
Feb 2000 Active Voltage Positioning Saves Output Capacitors in Portable Computer Applications
LTC1736 Footprints and Symbols