UC2577-ADJ - 简单步增稳压器

UC2577-ADJ是TI德州仪器公司的一款转换器（集成开关）产品，UC2577-ADJ是简单步增稳压器，本站介绍了UC2577-ADJ的封装应用图解、特点和优点、功能等，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 - 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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