LT1070HVIT

开关稳压器 LT1070 - 5A and 2.5A High Efficiency Switching Regulators

DESCRIPTION

The LT®1070/LT1071 are monolithic high power switching regulators. They can be operated in all standard switching configurations including buck, boost, flyback, for ward, inverting and “Cuk”. A high current, high efficiency switch is included on the die along with all oscillator, control and protection circuitry. Integration of all functions allows the LT1070/LT1071 to be built in a standard

5-pin TO-3 or T0-220 power package. This makes it extremely easy to use and provides “bust proof” operation similar to that obtained with 3-pin linear regulators.

FEATURES

■ Wide Input Voltage Range: 3V to 60V

■ Low Quiescent Current: 6mA

■ Internal 5A Switch 2.5A for LT1071

■ Very Few External Parts Required

■ Self Protected Against Overloads

■ Operates in Nearly All Switching Topologies

■ Shutdown Mode Draws Only 50µA Supply Current

■ Flyback Regulated Mode Has Fully Floating Outputs

■ Comes in Standard 5-Pin Packages

■ Can be Externally Synchronized Consult Factory

APPLICATIONS

■ Logic Supply 5V at 10A

■ 5V Logic to ±15V Op Amp Supply

■ Off-Line Converter Up to 200W

■ Battery Upconverter

■ Power Inverter + to – or – to +

■ Fully Floating Multiple Outputs

■ For Lower Current Applications, See the LT1072