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UC2577-ADJ-简单步增稳压器
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TI产品 - UC2577-ADJ介绍
UC2577-ADJ - 简单步增稳压器

UC2577-ADJ是TI公司的一款转换器(集成开关)产品,UC2577-ADJ是简单步增稳压器,本页介绍了UC2577-ADJ的产品说明、应用、特性等,并给出了与UC2577-ADJ相关的TI元器件型号供参考。

UC2577-ADJ - 简单步增稳压器 - 转换器(集成开关) - DC/DC开关稳压器 - TI公司(Texas Instruments,德州仪器)

产品描述

The UC2577-ADJ device provides all the active functions necessary to implement step-up (boost), flyback, and forward converter switching regulators. Requiring only a few components, these simple regulators efficiently provide up to 60V as a step-up regulator, and even higher voltages as a flyback or forward converter regulator.

The UC2577-ADJ features a wide input voltage range of 3.0V to 40V and an adjustable output voltage. An on-chip 3.0A NPN switch is included with undervoltage lockout, thermal protection circuitry, and current limiting, as well as soft start mode operation to reduce current during startup. Other features include a 52kHz fixed frequency on-chip oscillator with no external components and current mode control for better line and load regulation.

A standard series of inductors and capacitors are available from several manufacturers optimized for use with these regulators and are listed in this data sheet.

产品特性

  • Requires Few External Components
  • NPN Output Switches 3.0A, 65V(max)
  • Extended Input Voltage Range: 3.0V to 40V
  • Current Mode Operation for Improved Transient Response, Line Regulation, and Current Limiting
  • Soft Start Function Provides Controlled Startup
  • 52kHz Internal Oscillator
  • Output Switch Protected by Current Limit, Undervoltage Lockout and Thermal Shutdown
  • Improved Replacement for LM2577-ADJ Series
  • TYPICAL APPLICATIONS
    • Simple Boost and Flyback Converters
    • SEPIC Topology Permits Input Voltage to be Higher or Lower than Output Voltage
    • Transformer Coupled Forward Regulators
    • Multiple Output Designs

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