LT1777 - Low Noise Step-Down Switching Regulator

Features
  • Programmable dI/dt Limit
  • Internally Limited dV/dt
  • High Input Voltage: 48V Max
  • 700mA Peak Switch Rating
  • True Current Mode Control
  • 100kHz Fixed Operating Frequency
  • Synchronizable to 250kHz
  • Low Supply Current in Shutdown: 30µA
  • Low Thermal Resistance 16-Pin SO Package
Typical Application

Applications
  • Automotive Cellular and GPS Receivers
  • Telecom Power Supplies
  • Industrial Instrument Power Supplies
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT1777CS#PBFSO-16C$3.10$2.65
LT1777CS#TRPBFSO-16C$2.71
LT1777IS#PBFSO-16I$3.75$3.15
LT1777IS#TRPBFSO-16I$3.21
Demo Boards
Part NumberDescriptionPrice
DC242ALT1777CS | 100kHz Low Noise DC-DC Converter, 7.4V to 48V Input, 3.3V or 5Vout @ 0.5A$100.00
Datasheet
Design Note
Reliability Data
LT Journal
Related Product
LT1777 - Low Noise Step-Down Switching Regulator
DN212 - LT1777 High Voltage, Low Noise Buck Switching Regulator
R012 Reliability Data
Feb 1999 Generating Low Cost, Low Noise, Dual-Voltage Supplies
LT1777 Footprints and Symbols