LT1372CS8#TRPBF

FERTURES

 Faster Switching with Increased Efficiency Uses Small Inductors:4.7uH
■All Surface Mount Components
■Only 0.5 Square Inch of Board Space Low Minimum Supply Voltage:2.7V
■Quiescent Current:4mA Typ
■Current Limited Power Switch:1.5A Regulates Positive or Negative Outputs Shutdown Supply Current:12uA Typ
■Easy External Synchronization 8-Pin SO or PDIP Packages

APPLICATIOnS
■Boost Regulators
■CCFL Backlight Driver
■Laptop Computer Supplies
■Multiple Output Flyback Supplies Inverting Supplies

DESCRIPTIOn

 The LT@1372/LT1377 are monolithic high frequency switching regulators. They can be operated in all standard switching configurations including boost, buck, flyback, forward, inverting and "Cuk."A 1.5A high efficiency switch is included on the die, along with all oscillator, control and protection circuitry. All functions of the LT1372/LT1377
are integrated into 8-pin SO/PDIP packages.
The LT1372/LT1377 typically consumes only 4mA quies-cent current and has higher efficiency than previous parts.
High frequency switching allows for very small inductors to be used. All surface mount components consume less than 0.5 square inch of board space.
New design techniques increase flexibility and maintain ease of use. Switching is easily synchronized to an exter-
nal logic level source.A logic low on the shutdown pin reduces supply current to 12uA. Unique error amplifier circuitry can regulate positive or negative output voltage while maintaining simple frequency compensation tech-niques. Nonlinear error amplifier transconductance re-duces output overshoot on start-up or overload recovery.
Oscillator frequency shifting protects external compo-nents during overload conditions.

Feature

Applications

(Picture: Pinout)