NQ20x20QGx40 DC-DC Converter

9-20 V

0 - 20 V

40 A



Continuous Input




DC-DC Converter

Product Details

The NiQor® Quarter-brick dc-dc converter is a non‑isolated buck-boost regulator, which employs synchronous rectification to achieve extremely high conversion efficiency. The High Input Voltage NiQor Brick family of converters can be used in traditional DPA (distributed power architecture) systems or provide a regulated output voltage from a battery source or other variable voltage source. The NiQor Quarter-brick family can be configured to Buck the input voltage down to a lower voltage or Boost the input voltage up to a higher voltage using a single external resistor. These modules are RoHS 6/6 compliant (see page 12).

Operational Features

• Ultra high efficiency, up to 94% at full rated load current
• Delivers up to 40 A of output current
• Input Voltage Range: 9-20 V
• Output voltage range: 0-20 V (negative output is possible)
• Extensive on-board input and output filtering
• No minimum load requirement means no preload resistors required
• Buck or buck-boost versions available
• Adjustable current limit with current monitor (C option)

Mechanical Features

• Industry standard pin-out configuration
• Standard Encased size: 1.54" x 2.39" x 0.515" (39.01 x 60.6 x 13.08 mm)
• Total weight: Encased - 3 oz (85 g)

Control Features

• On/Off control
• Output voltage trim permits custom voltages
• Remote Sense (S option, standard)
• Current limit trim (C option)
• Output voltage trim range from 0 - 20V

Safety Features

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

Protection Features

• Input under-voltage lockout protects the converter at low input voltage conditions
• Over-current shutdown protects converter from excessive load current or short circuits
• Input/output over-voltage protection protects load and regulator from damaging voltages
• Thermal shutdown protects converter from abnormal environmental conditions