3A, 52kHz, Step-Down Switching Regulator
FEATURES
• 3.3V, 5.0V, 12V, 15V, and Adjustable Output Versions • Adjustable Ve...
3A, 52kHz, Step-Down Switching
Regulator
FEATURES
3.3V, 5.0V, 12V, 15V, and Adjustable Output Versions Adjustable Version Output Voltage Range, 1.23V to 52V
±4% maximum over line and load conditions Guaranteed 3.0A Output Current Wide Input Voltage Range: Up to 60V 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 for SMD type packages
LM2576HV
SOP-8PP TO-263-5
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 Boost Converters Power Supply for Battery Chargers
DESCRIPTION
The LM2576HV series of
regulators are monolithic integrated circuits ideally suited for easy and convenient design of a step-down switching
regulator (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. These
regulators were designed to minimize the number of external components to simplify the power supply design. Standard series of inductors optimized for use with the LM2576HV are offered by several different inductor manufacturers. The LM2576HV fea...