LM2592HV SIMPLE SWITCHER Power Converter 150 kHz 2A Step-Down Voltage Regulator
August 2001
LM2592HV SIMPLE SWITCHER ®...
LM2592HV SIMPLE SWITCHER Power Converter 150 kHz 2A Step-Down Voltage
Regulator
August 2001
LM2592HV SIMPLE SWITCHER ® Power Converter 150 kHz 2A Step-Down Voltage
Regulator
General Description
The LM2592HV series of
regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching
regulator, capable of driving a 2A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, and an adjustable output version. This series of switching
regulators is similar to the LM2593HV, but without some of the supervisory and performance features of the latter. Requiring a minimum number of external components, these
regulators are simple to use and include internal frequency compensation†, improved line and load specifications and a fixed-frequency oscillator. The LM2592HV operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching
regulators. Available in a standard 5-lead TO-220 package with several different lead bend options, and a 5-lead TO-263 Surface mount package. Other features include a guaranteed ± 4% tolerance on output voltage under all conditions of input voltage and output load conditions, and ± 15% on the oscillator frequency. External shutdown is included, featuring typically 90 µA standby current. Self protection features include a two stage current limit for the output switch and an...