BQ50120QTx25

DC-DC Converter

48 V

12 V

25 A

300 W

2000 V dc

Quarter-brick

Input

Output

Current

Power

Isolation

DC-DC Converter

Product Details

The BusQor® BQ50120QTx25 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 power dissipated by the converter is so low that a heat sink is not required, which saves cost, weight, height, and application effort. The BusQor series provides an isolated step down voltage from 48V to 12V 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

• Ultra-high efficiency, >96% at full rated load current
• Delivers up to 25 amps (300 Watts) of output current (power) with minimal derating - no heatsink required
• Input voltage range: 42V – 53V
• Fixed frequency switching provides predictable EMI performance

Mechanical Features

• Industry standard quarter-brick bus converter pin-out
• Industry standard size: 1.45” x 2.3” (36.8x58.4mm)
• Total height only 0.43” (10.9mm), permits better airflow and smaller card pitch
• Total weight: 1.5 oz. (42 grams)
• Flanged pins designed to permit surface mount soldering (can avoid wave solder) using FPiP technique

Control Features

• Industry standard quarter-brick bus converter pin-out
• Industry standard size: 1.45” x 2.3” (36.8x58.4mm)
• Total height only 0.43” (10.9mm), permits better airflow and smaller card pitch
• Total weight: 1.5 oz. (42 grams)
• Flanged pins designed to permit surface mount soldering (can avoid wave solder) using FPiP technique

Safety Features

• 2000V, 30 MW input-to-output isolation
• UL/cUL 60950-1 recognized (US & Canada), basic insulation rating
• TUV certified to EN60950-1
• Meets 72/23/EEC and 93/68/EEC directives
• Meets UL94V-0 flammability requirements

Protection Features

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