LM2575 Datasheet (PDF) Download
Texas Instruments
LM2575

Description

The LM2575 device greatly simplifies the design of switching power supplies by conveniently providing all the active functions needed for a step-down (buck) switching regulator in an integrated circuit.

Key Features

  • 1 Adjustable With a Range of 1.23 V to 37 V and ±4% Regulation (Max) Over Line, Load, and Temperature Conditions
  • Specified 1-A Output Current
  • Wide Input Voltage Range 4.75 V to 40 V
  • Uses Readily Available Standard Inductors
  • 52-kHz (Typical) Fixed-Frequency Internal
  • TTL Shutdown Capability With 50-μA (Typical)
  • High Efficiency…as High as 88% (Typical)
  • Thermal Shutdown and Current-Limit Protection
  • For the Full Offering of Voltages (Including Fixed

Applications

  • Simple High-Efficiency Step-Down (Buck) Regulator