Part # LM2590HV-AQ datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM2590HV-AQ SIMPLE SWITCHER®Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features

Part Details:

with LM2590HV May 2004 Features LM2590HV-AQ -AQ SIMPLE SWITCHER®Power Converter 150 kHz 1A SIMPLE Step-Down Voltage Regulator, with FeaturesGeneral Description Features The LM2590HV-AQ regulator is a monolithic integrated cir- n Reliability Qualification for Automotive cuit which provides all the active functions for a step-down n 3.3V, 5V, and adjustable output versions (buck) switching regulator, and is capable of driving a 1 Amp SWITCHER n Adjustable version output voltage range, 1.2V to 57V load with excellent line and load regulation. The ±4% max over line and load conditions LM2590HV-AQ is available in fixed output voltages of 3.3V, n Guaranteed 1A output load current 5.0V, as well as an adjustable output version. n Available in 7-pin TO-220 and TO-263 (surface mount) The LM2590HV-AQ switching regulator is similar to the Package LM2591HV with additional supervisory and performance fea- n Input voltage range up to 60V tures. n 150 kHz fixed frequency internal oscillator Requiring a minimum number of external components, these n Shutdown/Soft-start Power regulators are simple to use and include internal frequency n Out of regulation error flag compensation, improved line and load specifications, fixed- n Error flag delay frequency oscillator, Shutdown/Soft-start, output error flag typically 90 µA and flag delay. n Low power standby mode, IQ n High Efficiency The LM2590HV-AQ operates at a switching frequency of Converter 150 kHz thus allowing smaller sized filter components than n Thermal shutdown and current limit protection what would be needed with lower frequency switching regu-lators. Available in a standard 7-lead TO-220 package with Applications several different lead bend options, and a 7-lead TO-263

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LM2590HV-AQ.pdf Datasheet