BR301: 3.3 V, 1 A Non-Isolated Step Down DC/DC Converter Module

The BR301 is non-isolated step down type DC/DC converter module. The single module includes: a control IC, inductor, ceramic capacitor, and standoff pins. This provides a complete DC / DC converter solution, requiring few external components. It can be configured simply, reducing overall design time, allowing reuse of designs, and saving space on the application PCB.


  • Factory automation
  • Communication devices
  • Consumer electronics
  • Other low power conversion
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  • Input voltage range 8 to 30 VDC
  • Circuit topology: step-down chopper
  • Switching frequency: 350 kHz
  • Output: 3.3 V, 1 A, 3.3 W
  • Module footprint: 14 × 14 × 10 mm (W × D × H)
  • Weight: 1.6 g
  • All in one
  • Design-free
  • High efficiency: 87% (typ) at VIN = 8 V, IO = 0.6 A
  • Miniaturizes space required, by using high-frequency switching technology
  • Protection functions:
    • Overcurrent Protection function (OCP), with auto restart
    • Thermal Shutdown Protection function (TSD), with auto restart

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Product Image Functional Block Diagram Typical Application

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
BR301 4-lead PCB -40°C to 85°C Yes View Data New Contact your
local sales rep
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Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

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