LM2576 5V 3A Step-Down Voltage Regulator – Datasheet

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The LM2576-5V 3A Step-Down Voltage Regulator is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator. This device features an output voltage that is capable of driving a 3A load with excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and includes internal frequency compensation and a fixed-frequency oscillator. The LM2576 offers a high-efficiency replacement for the popular three-terminal adjustable linear regulator. It substantially reduces the size of the heat sink, and in many cases, no heat sink is required.

LM2576 Pinout

LM2576 Pin Configuration

Pin NoPin NameDescription
1VinInput Voltage
2OUTOutput Pin
3GNDGround Pin
4FBFeedback Pin
5ON/OFFOn/Off Pin

LM2576 Key Features

  • Wide output voltage range, 1.23V to 37V
  • Requires only 6 external components
  • 52 kHz fixed frequency internal oscillator
  • Low power standby mode, la typically <200 A
  • Efficiency typically over 80%
  • Uses readily available standard inductors

Application

  • Efficient pre-regulator for linear regulators On-card switching regulators
  • Positive to negative converter (Inverting Buck-Boost)
  • Isolated Fly back Converter using minimum number of external components

You can download this datasheet for LM2576 5V 3A Step-Down Voltage Regulator – Datasheet from the link given below: