LT1373 - 250kHz Low Supply Current High Efficiency 1.5A Switching Regulator

Features
  • 1mA IQ at 250kHz
  • Uses Small Inductors: 15µH
  • All Surface Mount Components
  • Only 0.6 Square Inch of Board Space
  • Low Minimum Supply Voltage: 2.7V
  • Constant Frequency Current Mode
  • Current Limited Power Switch: 1.5A
  • Regulates Positive or Negative Outputs
  • Shutdown Supply Current: 12µA Typ
  • Easy External Synchronization
  • 8-Pin SO or PDIP Packages
Typical Application

Applications
  • Boost Regulators
  • CCFL Backlight Driver
  • Laptop Computer Supplies
  • Multiple Output Flyback Supplies
  • Inverting Supplies
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT1373CN8#PBFN-8C$4.30$3.50
LT1373CS8#PBFSO-8C$4.50$3.65
LT1373CS8#TRPBFSO-8C$3.71
LT1373HVCN8#PBFN-8C$4.75$3.80
LT1373HVCS8#PBFSO-8C$4.90$3.95
LT1373HVCS8#TRPBFSO-8C$4.01
LT1373HVIN8#PBFN-8I$5.65$4.55
LT1373HVIS8#PBFSO-8I$5.80$4.65
LT1373HVIS8#TRPBFSO-8I$4.71
LT1373IN8#PBFN-8I$5.25$4.20
LT1373IS8#PBFSO-8I$5.40$4.35
LT1373IS8#TRPBFSO-8I$4.41
Demo Boards
Part NumberDescriptionPrice
DC076ALT1373CS8 | BOOST, 5V TO 12V, 0.3A, 250kHzContact Factory
DC161ALT1373HV | SLIC POWER SUPPLY, -20Vout @ 60mA and -60Vout @ 35mA+Contact Factory
DC181ALT1373CS8 | DUAL OUTPUT BUCK/BOOST SEPIC REGULATOR, 2.7 to 24Vin, -5V and +5V @ up to 0.3A OUTPUTContact Factory
DC515ALT1373CS8 | Power Supply, CCFL, Single Lamp, Vin=5V to 20V$150.00
Datasheet
Design Note
Reliability Data
Related Product
LT1373 - 250kHz Low Supply Current High Efficiency 1.5A Switching Regulator
DN108 - 250kHz, 1mA I Q Constant Frequency Switcher Tames Portable Systems Power
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R388 Reliability Data
LT1373 Footprints and Symbols