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LM2599
SNVS123D – APRIL 1998 –...
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LM2599
SNVS123D – APRIL 1998 – REVISED MAY 2016
LM2599 SIMPLE SWITCHER® Power Converter 150-kHz 3-A Step-Down Voltage
Regulator, With Features
1 Features
1 3.3-V, 5-V, 12-V, and Adjustable Output Versions Adjustable Version Output Voltage Range: 1.2 V
to 37 V ±4% Maximum Over Line and Load Conditions 3-A Output Current Available in 7-Pin TO-220 and TO-263 (SurfaceMount) Package Input Voltage Range Up to 40 V 150-kHz Fixed-Frequency Internal Oscillator Shutdown and Soft-Start Out-of-Regulation Error Flag Error Output Delay Low Power Standby Mode, IQ, Typically 80 μA High Efficiency Uses Readily Available Standard Inductors Thermal Shutdown and Current-Limit Protection
2 Applications
Simple High-Efficiency Step-Down (Buck)
Regulator
Efficient Pre
regulator for Linear
Regulators On-Card Switching
Regulators Positive to Negative Converter
3 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 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version.
The LM2598 is a member of the LM259x family, with additional supervisory and performance features added.
Requiring a minimum number of external components, these
regulators are simple to ...