LT1370CR

开关稳压器 LT1370 - 500kHz High Efficiency 6A Switching Regulator

DESCRIPTION

The LT® 1370 is a monolithic high frequency current mode switching regulator. It can be operated in all standard switching configurations including boost, buck, flyback, forward, inverting and “Cuk.” A 6A high efficiency switch is included on the die, along with all oscillator, control and

protection circuitry.

The LT1370 typically consumes only 4.5mA quiescent current and has higher efficiency than previous parts. High frequency switching allows for very small inductors to be used.

FEATURES

■ Faster Switching with Increased Efficiency

■ Uses Small Inductors: 4.7µH

■ All Surface Mount Components

■ Low Minimum Supply Voltage: 2.7V

■ Quiescent Current: 4.5mA Typ

■ Current Limited Power Switch: 6A

■ Regulates Positive or Negative Outputs

■ Shutdown Supply Current: 12µA Typ

■ Easy External Synchronization

■ Switch Resistance: 0.065ΩTyp

APPLICATIONS

■ Boost Regulators

■ Laptop Computer Supplies

■ Multiple Output Flyback Supplies

■ Inverting Supplies