LM2599SX-ADJ/NOPB Description
The LM2599SX-ADJ/NOPB regulator is a monolithic integrated circuit that provides 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, and 12 V, and an adjustable output
version. The LM2599SX-ADJ/NOPB 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 use and include internal frequency compensation, improved line and load specifications, a fixed-frequency oscillator, Shutdown and Soft-start, error flag delay, and error flag output.
LM2599SX-ADJ/NOPB Features
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
LM2599SX-ADJ/NOPB Applications
Simple High-Efficiency Step-Down (Buck) Regulator
Efficient Preregulator for Linear Regulators
On-Card Switching Regulators
Positive to Negative Converter
