LM2599 - 具有多种特性的 SIMPLE SWITCHER 电源转换器 150 KHz 3A 降压电压稳压器

LM2599是TI德州仪器公司的一款转换器（集成开关）产品，LM2599是具有多种特性的 SIMPLE SWITCHER 电源转换器 150 KHz 3A 降压电压稳压器，本站介绍了LM2599的封装应用图解、特点和优点、功能等，并给出了与LM2599相关的TI元器件型号供参考。

LM2599 - 具有多种特性的 SIMPLE SWITCHER 电源转换器 150 KHz 3A 降压电压稳压器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

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 include an ensured ±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 80μA standby current. Self protection features include a two stage current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. † Patent Number 5,382,918.

产品特性

3.3V, 5V, 12V, and Adjustable Output Versions
Adjustable Version Output Voltage Range, 1.2V to 37V ±4% Max Over Line and Load Conditions
Ensured 3A Output Current
Available in 7-Pin TO-220 and TO-263 (Surface Mount) Package
Input Voltage Range Up to 40V
150 kHz Fixed Frequency Internal Oscillator
Shutdown/Soft-start
Out of Regulation Error Flag
Error Output Delay
Low Power Standby Mode, IQ Typically 80μA
High Efficiency
Uses Readily Available Standard Inductors
Thermal Shutdown and Current Limit Protection

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