Overview of Q24T30018 DC-DC Converter Data Sheet
The Q24T30018 datasheet details a through-hole mounted DC-DC converter with an input voltage range of 18 to 36 VDC and an output of 1.8 VDC at 30A, presenting a solution designed to meet high-performance requirements. The converter operates within the industry-standard quarter-brick format and is recognized for its ultra-high efficiency, exceptional thermal management, and a low-profile design. Its thermal performance is notable, surpassing quarter bricks and matching half-bricks, which is significant for telecommunications applications. Moreover, its low-profile structure eliminates the need for heat sinks, reducing airflow shadowing thus improving cooling for adjacent components.
Key Features
Performance: High efficiency rates up to 83.5% at 30A output and 85.5% at 15A. Its high current capability is maintained even at elevated temperatures of 70°C. The design also supports start-up into pre-biased outputs without requiring a minimum load or heat sink.
Physical Dimensions: Featuring a low body profile of 0.28 inches (7.2 mm) and a lightweight of 1 oz (28 g) typical, adhering to the industry-standard footprint and pinout.
Compliance and Standards: Conforms to RoHS lead-free solder requirements, EN60950 for basic insulation, and UL94, V-0 for flammability. Also recognized by UL 60950 in the U.S. & Canada, in addition to DEMKO certification. Fulfills FCC Class B and EN55022 Class B conducted emissions with an external filter.
Protection and Reliability: Fully protected circuitry with a high MTBF of 2.6 million hours. The output voltage can be varied within a ±10% range via a trim function, ensuring operation within over-voltage protection limits.
Applications: Particularly suitable for telecommunications, data communications, wireless infrastructure, and servers.
Electrical Specifications
The converter operates within the input voltage range of 24-36 VDC and is safeguarded by an input under-voltage lockout mechanism. It provides a consistent switching frequency of 230kHz to 435kHz and accommodates external load capacitance for regulated output performance. Remote sense compensation and over-voltage protection enhance the output characteristics, ensuring stability and safety in usage. Operational efficiency is further augmented with features such as non-latching over-temperature shutdown and an auto-restart period for sustained protection and reliability under varying conditions.
Additional Notes
The datasheet emphasizes that the total output voltage trim from all sources should not surpass 10% of the nominal output voltage to ensure the correct functioning of over-voltage protection circuitry. Full details regarding output voltage adjustments are available in the Output Voltage Adjust/ITRIM section of the datasheet.
Date of Issue: The datasheet was initially released on June 01, 2003, and subsequently revised on November 22, 2006.
References:
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