Overview of the Q48T30033 DC-DC Converter
The Q48T30033 DC-DC Converter by Power-One is a through-hole mounted converter offering significant performance in a quarter brick format. It delivers an input range between 36-75 VDC with an output of 3.3 VDC at 30A. Characterized by its high efficiency and reliability, the converter provides a solution that outperforms other models in its class in both telecommunication and several other applications.
Key Features
The converter is notable for its high efficiency, achieving 88% at 30A and 89% at 15A. It is able to start up without a load and does not require a heatsink. Its low profile (0.28 inches) and light weight (approx. 1 ounce) make it a compact solution suitable for various setups. Additionally, the low body profile and elimination of heatsinks contribute to reduced airflow shadowing, enhancing cooling efficiency for downstream devices.
Critical for modern technology compliance, the converter is RoHS compliant, with options available for both lead-free solder and lead-solder-exempted products. For further integration, it offers an industry-standard footprint (1.45″ x 2.30″) and pinout, and is certified per various safety standards including UL 60950 and IECIEN 60950.
Protection features are robust, including capabilities such as withstanding 100V input transient for 100 ms, onboard LC input filter, fixed-frequency operation, remote output sense, and an output voltage trim range of +10%/-20%. Reliability is highlighted with a calculated MTBF of 2.6 million hours.
Applications
Designed for a versatile range of uses, particularly in fields requiring robust and efficient power management, applications include telecommunications, data communications, wireless infrastructure, and server technologies.
Performance and Specifications
The datasheet provides in-depth electrical specifications for the converter. These specifications detail the absolute maximum ratings, input characteristics, output characteristics, isolation characteristics, and feature characteristics. For instance, the operating input voltage range spans from 48 to 75 Vdc, with an operating ambient temperature from -40 to 85 degrees Celsius.
The efficiency and functionality of the converter are maintained across varying conditions, and it includes multiple control options along with protection against over-voltage and over-temperature conditions. A graphical representation on the datasheet illustrates the available load current versus ambient temperature, showcasing the device’s stable performance even in varied thermal environments.
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