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Z0589 • LM2576T Adjustable 1.2-37V 3A TO-220 

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Z0589

  • $4.95
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Weight:0.00290Kg

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Last updated 22-09-18 03:20:08

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  • Overview

Overview

The LM2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3-A load with excellent line and load regulation.

Requiring a minimum number of external components, these regulators are simple to use and include fault protection and a fixed-frequency oscillator.
The LM2576 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in some cases no heat sink is required.

A standard series of inductors optimized for use with the LM2576 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a 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.

Features

  • Adjustable Version Output Voltage Range,1.23 V to 37 V (57 V for HV Version) 4% Maximum Over Line and Load Conditions
  • Specified 3-A Output Current
  • Wide Input Voltage Range: 40 V Up to 60 V 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


Applications:
Simple High-Efficiency Step-Down (Buck) Regulator
Efficient Preregulator for Linear Regulators
On-Card Switching Regulators
Positive-to-Negative Converter (Buck-Boost)

Specifications

No specs available

*Specifications are subject to change without notice.

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