LM2575 Datasheet PDF

●DESCRIPTION

●The LM2575 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable

●output version. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed frequency oscillator.

●FEATURES

●• 3.3V, 5V, 12V, 15V, and Adjustable Output Versions

●• Adjustable Version Output Voltage Range,

●– 1.23V to 37V (57V for HV Version) ±4% Max Over

●– Line and Load Conditions

●• Specified 1A Output Current

●• Wide Input Voltage Range, 40V up to 60V for HV Version

●• Requires Only 4 External Components

●• 52 kHz Fixed Frequency Internal Oscillator

●• TTL Shutdown Capability, Low Power Standby Mode

●• High Efficiency

●• Uses Readily Available Standard Inductors

●• Thermal Shutdown and Current Limit Protection

●• P+ Product Enhancement Tested

●APPLICATIONS

●• Simple High-Efficiency Step-Down (Buck) Regulator

●• Efficient Pre-Regulator for Linear Regulators

●• On-Card Switching Regulators

●• Positive to Negative Converter (Buck-Boost)