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LM2590HV-具有多种特性的 SIMPLE SWITCHER 电源转换器 150 KHz 1A 降压电压稳压器
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TI产品 - LM2590HV介绍

LM2590HV - 具有多种特性的 SIMPLE SWITCHER 电源转换器 150 KHz 1A 降压电压稳压器

LM2590HV是TI德州仪器公司的一款转换器（集成开关）产品，LM2590HV是具有多种特性的 SIMPLE SWITCHER 电源转换器 150 KHz 1A 降压电压稳压器，本站介绍了LM2590HV的封装应用图解、特点和优点、功能等，并给出了与LM2590HV相关的TI元器件型号供参考。

LM2590HV - 具有多种特性的 SIMPLE SWITCHER 电源转换器 150 KHz 1A 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 LM2590HV series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, and an adjustable output version.

This series of switching regulators is similar to the LM2591HV with additional supervisory and performance features.

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, output error flag and flag delay.

The LM2590HV 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.

Other features include a guaranteed ±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 90µA 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.

产品特性

  • 3.3V, 5V, and adjustable output versions
  • Adjustable version output voltage range, 1.2V to 57V ±4% max over line and load conditions
  • Guaranteed 1A output load current
  • Available in 7-pin TO-220 and TO-263 (surface mount) Package
  • Input voltage range up to 60V
  • 150 kHz fixed frequency internal oscillator
  • Shutdown/Soft-start
  • Out of regulation error flag
  • Error flag delay
  • Low power standby mode, IQ typically 90µA
  • High Efficiency
  • Thermal shutdown and current limit protection

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