Q48525020 DC-DC Converter Data Sheet

Category: Electronics, Other Semiconductors, Powerone

The Q48525020 DC-DC Converter, provided by Power-One, stands out in the quarter brick standard for surface-mounted converters. The Q48525020 is optimized for use in telecommunications and related applications, where it outperforms competitors regarding thermal management and efficiency. Its innovative design excludes the need for heat sinks, reducing airflow blockage and benefiting cooling processes for adjacent electronics.

Key Features of the Q48525020 Converter

Environmentally friendly, with RoHS compliant variants available
Capable of delivering up to 25A of current at a high efficiency of 85.5%
Operates effectively without a minimum load and doesn’t require a heat sink
Distinguished by its low profile, at 0.26 inches (6.6 mm), and light weight of approx. 1 ounce (28 g)
Conforms to industry-standard footprint dimensions of 1.45 by 2.30 inches
Complies with the Basic Insulation Requirements of the EN60950
Can endure a 100V input transient for 100 ms with built-in LC input filter
Provides fixed-frequency operation and full protection
Features remote output sensing and an output voltage trim range of 10%/ -20%
High reliability with a calculated MTBF of 2.6 million hours as per Telcordia TR-332 Method
Recognized and certified safety standards include UL 60950 and IEC/EN 60950
Meets the FCC Class B and EN55022 Class B emissions with an external filter
Materials used are UL94, V-0 flammability rating compliant

Converter Performance

The converter’s performance graph (Fig. 1) on the data sheet illustrates how the available load current correlates with different ambient air temperatures and airflow rates. When mounted vertically, with air moving from pin 3 to pin 1, the MOSFET temperature remains below 120°C for the various listed cooling conditions. This graph underscores the Q48525020’s ability to function reliably under a wide range of thermal environments.

Applications

This DC-DC converter is directed at several technology sectors, prominently:

Telecommunications
Data communications
Wireless networking
Servers

The data sheet has any further pertinent information, the latest revision being dated November 20, 2006, affirming continued improvements and reliability of Power-One’s products.