NDQ1600 Series – Ultra-Efficient 1600 W 48 V to 12 V DC-DC Converters
The NDQ1600 series delivers exceptional power density and efficiency in a compact quarter-brick package, making it ideal for high-power computing, networking, and storage applications. These non-isolated, single-output, digitally controlled DC-DC converters feature a standard quarter-brick outline and pin configuration, converting 40 to 60 VDC to provide up to 1600 W at 12 VDC with 97.7% peak efficiency.
Designed for reliability and performance, the NDQ1600 outputs full power across an operating range of -40 to +85°C with forced-air cooling. Noise and ripple are typically 150 mV peak-to-peak with a 4 mF electrolytic capacitor. An optional PMBus® interface enables flexible digital control and real-time monitoring. Fully compliant with IEC62368 safety standards, the NDQ1600 series offers a high-efficiency power solution for demanding industrial and data centre environments.

Range features
A high level overview of what this range offers
- Input: 40 to 60 VDC
- Output: 1600 W
- Output Voltage: 12 V nominal
- Output Current: 133 A
- Safety: IEC62368 compliant
- Mechanical size: 1/4 brick converter
- Efficiency: 97.7% peak
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High Power Density – Delivers up to 1600 W in a compact quarter-brick footprint, optimising space.
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Exceptional Efficiency – Achieves up to 97.7% peak efficiency, reducing energy loss and thermal load.
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Digital Control Capability – Optional PMBus® interface enables precise monitoring and configuration.
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Thermal Resilience – Provides full-power operation from -40°C to +85°C with forced-air cooling.
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Low Output Noise – Typical output ripple of just 150 mV peak-to-peak ensures stable power delivery.
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Robust Construction – Single-PCB design with baseplate enhances reliability and thermal management.
What’s in this range?
All the variants in the range and a comparison of what they offer
Parameter | NDQ1600-48S12B-6LI | NDQ1600-48S12B-6IA |
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Input Voltage Range | 40 – 60 VDC | 40 – 60 VDC |
Nominal Input Voltage | 48 VDC | 48 VDC |
Output Voltage | 12 VDC nominal | 12 VDC nominal |
Output Power | 1600 W | 1600 W |
Output Current | 133 A | 133 A |
Peak Efficiency | Up to 97.7% | Up to 97.7% |
Operating Temperature Range | -40°C to +85°C (with forced-air cooling) | -40°C to +85°C (with forced-air cooling) |
Output Ripple & Noise | 150 mV peak-to-peak (typical, with 4 mF cap) | 150 mV peak-to-peak (typical, with 4 mF cap) |
Control Interface | PMBus® digital interface | Analog control interface |
Enable Function | Negative enable | Negative enable |
Mechanical Format | Standard 1/4 brick converter | Standard 1/4 brick converter |
Construction | Single-PCB with baseplate | Single-PCB with baseplate |
Dimensions (L × W × H) | 58.4 × 36.8 × 12.7 mm (typical) | 58.4 × 36.8 × 12.7 mm (typical) |
Cooling Method | Forced-air cooling required for full load | Forced-air cooling required for full load |
Isolation Type | Non-isolated, single-output | Non-isolated, single-output |
Applications | Data centres, high-performance computing, storage systems | Data centres, high-performance computing, storage systems |