Step down regulator delivers full current at up to 83°C
1 min read
Linear Technology has introduced the LTM4649, a 10A step down µModule regulator with high operating efficiency and low temperature rise in a 9 x 15 x 4.92mm BGA package.
The module requires no heat sink, airflow or output current derating at full power from 0 to 83°C ambient temperature, while achieving up to 86% efficiency. Output current is reduced by 4A up to 100ºC ambient and by 2A with 400LFM.
The LTM4649 converts input supplies ranging from 4.5 to 16V to lower output voltages ranging from 0.6 to 3.3V. Equipped with a differential remote sense amplifier to compensate for voltage droop due to circuit board trace impedance, Linear says it regulates a load voltage with ±1.5% accuracy over line, load and temperature (-40 to 125°C).
In addition, the LTM4649 provides input and output clocks for multi phase operation among multiple devices to accurately current share for up to. Typical applications include point of load conversion from 5 or 12V inputs in telecom, industrial, avionics and test equipment.
