Part # LM2575HVEP datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM2575EP LM2575HVEP SIMPLE SWITCHER® 1A Step-Down Voltage Regulator


Part Details:

LM2575EP/LM2575HVEP December 2004 LM2575EP/LM2575HVEPSIMPLE SWITCHER® 1A Step-Down Voltage RegulatorGeneral Description ENHANCED PLASTIC · Extended Temperature Performance of The LM2575EP series of regulators are monolithic inte-grated circuits that provide all the active functions for a -40°C T +125°C J step-down (buck) switching regulator, capable of driving a · Baseline Control - Single Fab & Assembly Site 1A load with excellent line and load regulation. These de- · Process Change Notification (PCN) vices are available in fixed output voltages of 3.3V, 5V, 12V, · Qualification & Reliability Data 15V, and an adjustable output version. Series · Solder (PbSn) Lead Finish is standard Requiring a minimum number of external components, theseregulators are simple to use and include internal frequency · Enhanced Diminishing Manufacturing Sources (DMS) compensation and a fixed-frequency oscillator. Support The LM2575EP series offers a high-efficiency replacement SIMPLE for popular three-terminal linear regulators. It substantially Features reduces the size of the heat sink, and in many cases no heat n 3.3V, 5V, 12V, 15V, and adjustable output versions sink is required. n Adjustable version output voltage range, A standard series of inductors optimized for use with the 1.23V to 37V (57V for HV version) ±4% max over LM2575EP are available from several different manufactur- line and load conditions ers. This feature greatly simplifies the design of switch-mode n Guaranteed 1A output current SWITCHER power supplies. n Wide input voltage range, 40V up to 60V for HV version Other features include a guaranteed ±4% tolerance on out- n Requires only 4 external components put voltage within specified input voltages and output load n 52 kHz fixed frequency internal oscillator conditions, and ±10% on the oscillator frequency. External n TTL shutdown capability, low power standby mode shutdown is included, featuring 50 µA (typical) standby cur- n High efficiency rent. The output switch includes cycle-by-cycle current limit- n Uses readily available standard inductors ing, as well as thermal shutdown for full protection underfault conditions.


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LM2575HVEP.pdf Datasheet