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LM2574 Voltage Regulator IC

SKU: EAP-000735
Availability:

In stock


  • 3.3V, 5V, 12V, and adjustable output versions
  • Adjustable version output 1.23V to 37V ±4% Max. over Line and Load conditions.
  • Guaranteed 0.5A output current
  • Wide input voltage, up to 40V
  • Thermal shutdown and current limit protection
  • Requires only 4 external components.
  • Shutdown capability (standby mode)
  • Low power standby mode < 200µA typical
  • High efficiency
  • 52kHz fixed frequency internal oscillator

5,300 Ks

In stock

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The LM2574 family is a series of easy to use fixed and adjustable switching voltage regulators. The LM2574 contains all of the active circuitry necessary to construct a stepdown (buck) switching regulator and requires a minimum of external components.

The LM2574 is available in 3.3V, 5V, and 12V fixed output versions, or an adjustable version with an output voltage range of 1.23V to 37V. Output voltage is guaranteed to ±4% for specified input and load conditions.

The LM2574 can supply 0.5A while maintaining excellent line and load regulation. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

  • 3.3V, 5V, 12V, and adjustable output versions
  • Adjustable version output 1.23V to 37V ±4% Max. over Line and Load conditions.
  • Guaranteed 0.5A output current
  • Wide input voltage, up to 40V
  • Thermal shutdown and current limit protection
  • Requires only 4 external components.
  • Shutdown capability (standby mode)
  • Low power standby mode < 200µA typical
  • High efficiency
  • 52kHz fixed frequency internal oscillator

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