LM2575 - Adjustable Output Voltage, Step-Down …

Semiconductor Components Industries, LLC, 2009 June, 2009 Rev. 111 Publication Order Number: LM2575 /DLM2575, A, Adjustable OutputVoltage, step -DownSwitching RegulatorThe LM2575 series of regulators are monolithic integrated circuitsideally suited for easy and convenient design of a step downswitching regulator (buck converter). All circuits of this series arecapable of driving a A load with excellent line and load devices are available in fixed Output voltages of V, V,12 V, 15 V, and an Adjustable Output regulators were designed to minimize the number of externalcomponents to simplify the power supply design. Standard series ofinductors optimized for use with the LM2575 are offered by severaldifferent inductor the LM2575 converter is a switch mode power supply, itsefficiency is significantly higher in comparison with popularthree terminal linear regulators, especially with higher input many cases, the power dissipated by the LM2575 regulator is solow, that no heatsink is required or its size could be LM2575 features include a guaranteed 4% tolerance on outputvoltage within specified input voltages and Output load conditions, and 10% on the oscillator frequency ( 2% over 0 C t)

LM2575, NCV2575 http://onsemi.com 2 Figure 1. Block Diagram and Typical Application 7.0 V - 40 V Unregulated DC Input L1 330 H GND +Vin 1 Cin 100 F 3ON5 /OFF

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  Step, Voltage, Output, Adjustable, Down, Lm2575 adjustable output voltage, Lm2575, Step down

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