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Voltage Regulator Buck Type 5V 3A LM2576

(£2.92 UK, incl VAT)
Price in points: 487 points
2 g
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Price £2.08 £1.96
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The LM2576T-5 is a 5V, 3A monolithic devices that provide all the active functions for a step-down (buck) switching regulator. These devices offer a high efficiency replacement for three-terminal type linear regulators, substantially reducing the degree of thermal management required. These regulators are simple to use devices, requiring only a minimum of external components, thus reducing component and assembly costs. Suitable applications for these devices include: simple high efficiency buck regulation, pre-regulation for linear regulators, on-card switching regulators, positive to negative conversion (buck-boost).

  • Supplied in a 5 pin TO-220-5 package
  • 5V version
  • Wide input voltage range 4V to 40V
  • Guaranteed 3A output
  • Internal oscillator 52kHz fixed frequency
  • Output voltage tolerance ±4%
  • Oscillator frequency tolerance ±10%
  • External shutdown facility
  • Low power standby mode
  • Thermal shutdown and current limit protection
  • Requires minimal external components

Supply voltage range4V to 40V
Output voltage typ.+5V
Efficiency typ.77%
Oscillator frequency typ.52kHz
Duty cycle (ON) max.98%
Current limit typ.5.8A
Output leakage current typ.7.5mA
Quiescent current typ.5mA
Operating temperature range–40°C to +125°C
Storage temperature range–65°C to +150°C



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