FEATURES
DESCRIPTION
The LT®1170/LT1171/LT1172 are monolithic high power switching regulators. They can be operated in all standard switching configurations including buck, boost, flyback, forward, inverting and “Cuk.” A high current, high efficiency switch is included on the die along with all oscillator, control and protection circuitry.
FEATURES
■ Wide Input Voltage Range: 3V to 60V
■ Low Quiescent Current: 6mA
■ Internal 5A Switch (2.5A for LT1171,
1.25A for LT1172)
■ Shutdown Mode Draws Only 50µA Supply Current
■ Very Few External Parts Required
■ Self-Protected Against Overloads
■ Operates in Nearly All Switching Topologies
■ Flyback-Regulated Mode Has Fully Floating Outputs
■ Comes in Standard 5-Pin Packages
■ LT1172 Available in 8-Pin MiniDIP and Surface Mount
Packages
■ Can Be Externally Synchronized
APPLICATIONS
■ Logic Supply 5V at 10A
■ 5V Logic to ±15V Op Amp Supply
■ Battery Upconverter
■ Power Inverter (+ to –) or (– to +)
■ Fully Floating Multiple Outputs
Analog Devices (NASDAQ: ADI) is a world leader in the design, manufacture, and marketing of a broad portfolio of high performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs) used in virtually all types of electronic equipment. Since our inception in 1965, we have focused on solving the engineering challenges associated with signal processing in electronic equipment. Used by over 100,000 customers worldwide, our signal processing products play a fundamental role in converting, conditioning, and processing real-world phenomena such as temperature, pressure, sound, light, speed, and motion into electrical signals to be used in a wide array of electronic devices.