Part # LM2593HV datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM2593HV SIMPLE SWITCHERPower Converter 150 kHz 2A Step-Down Voltage Regulator, with Features


Part Details:

Features LM2593HV December 2001 LM2593HV SIMPLE SIMPLE SWITCHER®Power Converter 150 kHz 2AStep-Down Voltage Regulator, with FeaturesGeneral Description Features SWITCHER The LM2593HV series of regulators are monolithic inte- n 3.3V, 5V, and adjustable output versions grated circuits that provide all the active functions for a n Adjustable version output voltage range, 1.2V to 57V step-down (buck) switching regulator, capable of driving a ±4% max over line and load conditions 2A load with excellent line and load regulation. These de- n Guaranteed 2A output load current vices are available in fixed output voltages of 3.3V, 5V, and n Available in 7-pin TO-220 and TO-263 (surface mount) an adjustable output version. Package This series of switching regulators is similar to the n Input voltage range up to 60V LM2592HV with additional supervisory and performance fea- n 150 kHz fixed frequency internal oscillator Power tures. n Shutdown/Soft-start Requiring a minimum number of external components, these n Out of regulation error flag regulators are simple to use and include internal frequency n Error flag delay compensation, improved line and load specifications, n Low power standby mode, I typically 90 µA fixed-frequency oscillator, Shutdown/Soft-start, output error Q Converter flag and flag delay. n High Efficiency n Thermal shutdown and current limit protection The LM2593HV operates at a switching frequency of 150kHz thus allowing smaller sized filter components than whatwould be needed with lower frequency switching regulators. Applications Available in a standard 7-lead TO-220 package with several n Simple high-efficiency step-down (buck) regulator different lead bend options, and a 7-lead TO-263 Surface n Efficient pre-regulator for linear regulators mount package. n On-card switching regulators 150 Other features include a guaranteed ±4% tolerance on out- n Positive to Negative converter put voltage under all conditions of input voltage and output Note: Patent Number 5,382,918. load conditions, and ±15% on the oscillator frequency. Ex- kHz


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LM2593HV.pdf Datasheet