Download LM5176 Datasheet PDF
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LM5176 Description

The LM5176 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The LM5176 operates over a wide input voltage range of 4.2 V to 55 V (60-V ) to support a variety of applications. The LM5176 uses current-mode control both in buck and boost modes of operation for superior load and line regulation.

LM5176 Key Features

  • Functional Safety-Capable
  • Documentation available to aid functional safety system design
  • Single inductor buck-boost controller for step-up/ step-down DC/DC conversion
  • Wide VIN: 4.2 V (2.5 V with bias) to 55 V (60 V maximum)
  • Flexible VOUT: 0.8 V to 55 V
  • VOUT short protection
  • High efficiency buck-boost transition
  • Adjustable switching frequency
  • Optional frequency sync and dithering
  • Integrated 2-A MOSFET gate drivers