LM2599 SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator, with Features
April 1998
LM2599 SIMPLE ...
LM2599 SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage
Regulator, with Features
April 1998
LM2599 SIMPLE SWITCHER ® Power Converter 150 kHz 3A Step-Down Voltage
Regulator, with Features
General Description
The LM2599 series of
regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching
regulator, capable of driving a 3A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version. This series of switching
regulators is similar to the LM2596 series, with additional supervisory and performance features added. Requiring a minimum number of external components, these
regulators are simple to use and include internal frequency compensation†, improved line and load specifications, fixed-frequency oscillator, Shutdown/Soft-start, error flag delay and error flag output. The LM2599 series 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 7-lead TO-220 package with several different lead bend options, and a 7-lead TO-263 Surface mount package. A standard series of inductors (both through hole and surface mount types) are available from several different manufacturers optimized for use with the LM2599 series. This feature greatly simplifies the design of switch-mode power supplies. Other features ...