TC2575

www.DataSheet4U.com 1.0A Step-Down Switching Regulator TC2575 TC2575 1.0A Step-Down Switching Regulator FEATURES s s s s s s s s s s 3.3V, 5.0V, 12V, and Adjustable Output Versions Adjustable Version Output Voltage Range of 1.23V to 37V ±4% Max. Over Line and Load Conditions Guaranteed 1.0 A Output Current Wide Input Voltage Range; 4.75V 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 The TC2575 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 1.0A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5.0V, 12V, 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 TC2575 are offered by several different inductor manufacturers. Since the TC2575 converter is a switch-mode power supply, its efficiency is significantly higher in comparison with popular three-terminal linear regulators, especially with higher input voltages. In many cases, the power dissipated is so low, that no heatsinking is required or its size can be reduced dramat...