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LM2574M-ADJ Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
LM2574M-ADJNS206Yes

LM2574M-ADJ is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NS).

The LM2574M-ADJ is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NS).

Specifications:

  • Input Voltage Range: 4.5V to 40V
  • Adjustable Output Voltage: 1.23V to 37V (set via external resistors)
  • Output Current: Up to 0.5A
  • Switching Frequency: 52 kHz (fixed)
  • Efficiency: Up to 80%
  • Operating Junction Temperature: -40°C to +125°C
  • Package: 8-Pin SOIC (M)

Descriptions:

The LM2574M-ADJ is a monolithic integrated circuit that provides all active functions for a step-down switching regulator. It is designed for easy implementation in various power supply applications, offering high efficiency and requiring minimal external components.

Features:

  • Adjustable output voltage
  • Internal current limiting and thermal shutdown
  • Low power standby mode (IQ ≈ 50µA)
  • Requires only 4 external components
  • Wide input voltage range
  • Stable with low-ESR output capacitors

This regulator is commonly used in battery-powered systems, industrial controls, and automotive applications.

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