LT1528 - 3A Low Dropout Regulator for Microprocessor Applications

The LT1528 has both reverse input and reverse output protection and includes a shutdown feature. Quiescent current drops to 125µA in shutdown. The LT1528 is available in 5-lead TO-220 and 5-lead DD-PAK packages.

Features
  • Dropout Voltage: 0.6V at Iout = 3A
  • Fast Transient Response
  • Output Current: 3A
  • Quiescent Current: 400µA
  • No Protection Diodes Needed
  • Fixed Output Voltage: 3.3V
  • Controlled Quiescent Current in Dropout
  • Shutdown IQ = 125µA
  • Stable with 3.3µF Output Capacitor
  • Reverse Battery Protection
  • No Reverse Output Current
  • Thermal Limiting
Typical Application

Applications
  • Microprocessor Applications
  • Post Regulator for Switching Supplies
  • 5V to 3.3V Logic Regulator
Packaging

Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT1528CQ#PBFDDPAK-5C$4.75$3.80
LT1528CQ#TRPBFDDPAK-5C$3.92
LT1528CT#PBFTO-220C$4.35$3.50
Datasheet
Reliability Data
Related Product
LT1528 - 3A Low Dropout Regulator for Microprocessor Applications
LT1528 Package Drawing LT1528
R321 Reliability Data
LT1528 Footprints and Symbols