BQ57120QZx67 DC-DC Converter

48 V

12 V

67 A

763.8 W

2000 V dc







DC-DC Converter

Product Details

The BusQor® BQ57120QZB67 bus converter is a nextgeneration, board-mountable, isolated, fixed switching frequency DC-DC converter that uses synchronous rectification to achieve extremely high conversion efficiency. The BusQor series provides an isolated step down voltage from 48 V to 12 V intermediate bus with no regulation in a standard quarter-brick module. BusQor converters are ideal for creating the mid-bus voltage required to drive point-of-load (non-isolated) converters in intermediate bus architectures.

Operational Features

• High efficiency, 96.85% at full rated load current
• Delivers 67 A full power with minimal derating
• Operating input voltage range: 40-65 V
• Fixed frequency switching provides predictable EMI
• No minimum load requirement

Mechanical Features

• Industry standard quarter-brick pin-out configuration
• Size: 1.51"x 2.34" (38.4 x 59.4mm), height: 0.517" (13.13mm)
• Total Baseplate weight: 2.67 oz (75.7 g)

Control Features

• On/Off control referenced to input side (only negative logic options is available)
• Inherent current share (by droop method) for high current and parallel applications.

Safety Features

• CAN/CSA C22.2 No. 60950-1
• UL 60950-1
• EN 60950-1

Protection Features

• Input under-voltage lockout and over-voltage shutdown protects against abnormal input voltages
• Output current limit and short circuit protection (auto recovery)
• Output over-voltage protection
• Thermal shutdown