The LM2596 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 3-A load with excellent line and load regulation. LM2596 DC- DC Buck Step Down Module is available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed frequency oscillator. The LM2596 module operates at a switching frequency of 150 kHz, thus allowing smaller sized filter components than what would be required with lower frequency switching regulators. LM2596 DC-DC Buck Step Down Module is available in a standard 5-pin TO-220 package with several different lead bend options, and a 5-pin TO-263 surface mount package Features: Input: Dc 3 v to 40 v (input voltage must be 1.5 v higher than the output voltage, no boost) output: Dc 1.5 v to 35 v voltage is continuously adjustable, maximum output current is 3 a notes: The input and output interface can not be reversed. Keep it under 2.5 a and use the heat sink when working for long hours.
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