LM2575

1A, 52kHz, Step-Down Switching Regulator LM2575 FEATURES 3.3V, 5.0V, 12V, 15V, and Adjustable Output Versions Adjustable Version Output Voltage Range, 1.23 to 37V +/- 4% AG10 Maximum Over Line and Load Conditions Guaranteed 1A 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 3 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 TO-220 PKG 15 TO-220V PKG 1 5 TO-263 PKG 1 5 1. Vin 2. Output 3. Ground 4. Feedback 5. On/Off DESCRIPTION ORDERING INFORMATION The LM2575 series of regulators are monolithic integrated Device Marking circuits ideally suited for easy and convenient design of a LM2575T-X.X LM2575T-X.X step-down switching regualtor(buck converter). LM2575TV-X.X LM2575T-X.X All circuits of this series are capable of driving a 1A load LM2575R LM2575R-X.X 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. These regulatiors were designed to minimize the number of externalcomponents to simplify the power supply design. Standard s...