LM2599 Datasheet | Texas Instruments

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 (Surface Mount) Package - Input Voltage Range Up to 40 V - 150-k Hz 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 Preregulator 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 ponents, these regulators are simple to use and include internal frequency pensation, improved line and load specifications, fixed-frequency oscillator, Shutdown and Soft-start, error flag delay, and error flag output. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TO-220 (7) TO-263 (7) 14.986 mm × 10.16 mm 10.10 mm × 8.89 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application (fixed output voltage versions) An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. SNVS123D - APRIL 1998 - REVISED MAY...