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LM2575-N-SIMPLE SWITCHER 1A 降压电压稳压器
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TI产品 - LM2575-N介绍

LM2575-N - SIMPLE SWITCHER 1A 降压电压稳压器

LM2575-N是TI德州仪器公司的一款转换器（集成开关）产品，LM2575-N是SIMPLE SWITCHER 1A 降压电压稳压器，本站介绍了LM2575-N的封装应用图解、特点和优点、功能等，并给出了与LM2575-N相关的TI元器件型号供参考。

LM2575-N - SIMPLE SWITCHER 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 LM2575 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, 12V, 15V, and an adjustable output version.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.

The LM2575 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.

A standard series of inductors optimized for use with the LM2575 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a specified ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50 μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

产品特性

  • 3.3V, 5V, 12V, 15V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range,
    •  1.23V to 37V (57V for HV Version) ±4% Max Over
    •  Line and Load Conditions
  • Specified 1A Output Current
  • Wide Input Voltage Range, 40V up to 60V for HV Version
  • Requires Only 4 External Components
  • 52 kHz Fixed Frequency Internal Oscillator
  • TTL Shutdown Capability, Low Power Standby Mode
  • High Efficiency
  • Uses Readily Available Standard Inductors
  • Thermal Shutdown and Current Limit Protection
  • P+ Product Enhancement Tested

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