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MIC4576BT

Switching Voltage Regulators

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MIC4576BT General Description

Buck Switching Regulator IC Positive Adjustable 1.23V 1 Output 3A TO-220-5

Key Features

  • Fixed 200kHz operation
  • 3.3V, 5V, and adjustable output versions
  • Voltage over specified line and load conditions:
  • Fixed version: ±3% max. output voltage
  • Adjustable version: ±2% max. feedback voltage
  • Guaranteed 3A switch current
  • Wide 4V to 36V input voltage range
  • Wide 1.23V to 33V output voltage range
  • Requires minimum external components
  • <200µA typical shutdown mode
  • 75% efficiency (adjustable version> 75% typical)
  • Standard inductors are 25% of typical LM2576 values
  • Thermal shutdown
  • Overcurrent protection
  • 100% electrical thermal limit burn-in

Specifications

Function Step-Down Output Configuration Positive
Topology Buck Output Type Adjustable
Number of Outputs 1 Voltage - Input (Min) 4V
Voltage - Input (Max) 36V Voltage - Output (Min/Fixed) 1.23V
Voltage - Output (Max) 33V Current - Output 3A
Frequency - Switching 200kHz Synchronous Rectifier No
Operating Temperature -40°C ~ 85°C (TA) Mounting Type Through Hole
Base Product Number MIC4576

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