Texas Instruments (LM2576S-12/NOPB) Buck (Step Down) Switching Regulator

Buck (Step Down) Switching Regulator, Fixed, 4V-40V In, 12V And 3A Out, 52 kHz,TO-263-5Product OverviewThe LM2576S-12/NOPB is a 3A low component count Step-down Regulator offers ahigh-efficiency replacement for popular three-terminal linear regulators. Itsubstantially reduces the size of the heat sink and in some cases no heat sinkis required. A standard series of inductors optimized for use with the LM2576are available from several different manufacturers. This feature greatlysimplifies the design of switch-mode power supplies. Other features include aspecified ±4% tolerance on output voltage within specified input voltages andoutput load conditions and ±10% on the oscillator frequency. External shutdownis included, featuring 50µA (typical) standby current. The output switchincludes cycle-by-cycle current limiting, as well as thermal shutdown for fullprotection under fault conditions. This monolithic integrated circuit thatprovide all the active functions for a step-down (buck) switching regulator,capable of driving 3A load with excellent line and load regulation.TTL shutdown capability, low power standbyHigh efficiencyUses readily available standard inductorsThermal shutdown and current limit protectionP+ Product enhancement testedApplicationsPower ManagementProduct InformationTopology: Buck (Step Down)Input Voltage Min: 4VInput Voltage Max: 40VDC / DC Converter IC Case: TO-263 (D2PAK)No. of Pins: 5PinsOutput Current: 3AOutput Voltage Nom: 12VSwitching Frequency: 52kHzOperating Temperature Max: 125°C