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LM2576 Datasheet PDF

HTC KOREA LM2576

The LM2576 series of regulators are monolithic integrated circuits ideally suited for easy and convenient design of a step-down switching regulator (buck converter). 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.
Part No. LM2576
Datasheet LM2576 Download
Manufacturer
HTC KOREA
Description Step-Down Switching Regulator
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LM2576 datasheet page 1 preview

FEATURES

● 3.3V, 5.0V, 12V, 15V, and Adjustable Output Versions
● Adjustable Version Output Voltage Range, 1.23V to 37V ±4% maximum over line and load conditions
● Guaranteed 3.0A Output Current
● Wide Input Voltage Range: Up to 40V
● 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 LM2576 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 TO-220-5

DESCRIPTION

All circuits of this series are capable of driving a 3.0A load with excellent line and load regulation. Standard series of inductors optimized for use with the LM2576 are offered by several different inductor manufacturers.
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