DESCRIPTION
The LM2576 series of regulators are monolithic integrated circuits ideally suited for easy and convenient design of a step-down switching regualtor(buck converter). All circuits of this series are capable of driving a 3.0A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5.0V,12V, 15V, and an adjustable output version.

FEATURES
● 3.3V, 5.0V, 12V, 15V, and Adjustable Output Versions
● Adjustable Version Output Voltage Range, 1.23 to 37V
   +/- 4% AG10Maximum Over Line and Load Conditions
● Guaranteed 3.0A Output Current
● Wide Input Voltage Range
● Requires Only 4 External Components
● 52kHz Fixed Frequency Internal Oscillator
● TTL Shutdown Capability, Low Power Standby Mode
● High Efficiency
● Uses Readily Available Standard Inductors
● Thermal Shutdown and Current Limit Protection
● Moisture Sensitivity Level(MSL) Equals1

Applications
● Simple High-Efficiency Step-Down(Buck) Regulator
● Efficient Pre-Regulator for Linear Regulators
● On-Card Switching Regulators
● Positive to Negative Converter(Buck-Boost)
● Negative Step-Up Converters
● Power Supply for Battery Chargers