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)
