MILPITAS, CA - August 26, 2014 - Linear Technology Corporation introduces the LTM4634, a triple output step-down µModule® (micromodule) regulator in a 15mm x 15mm x 5.01mm BGA package with integrated heat sink. The thermally efficient package enables the LTM4634 to deliver full current on all three outputs (5A, 5A, and 4A), more than 70W of output power at 65°C ambient with 200LFM airflow. Combined with only 13 ceramic capacitors and three resistors, the LTM4634 solution fits within 4.5cm² on a dual-sided PCB. The LTM4634 includes three DC/DC controllers, power switches, inductors and compensation in a single package. The regulated output voltage for channels 1 and 2 is adjustable between 0.8V to 5.5V, with the third channel from 0.8V to 13.5V, each with ±1.5% accuracy over line, load and temperature. The combination of wide output voltage range, a thermally efficient package, tight regulation accuracy and small solution size makesÂ the LTM4634 well suited to regulate common intermediate power buses such as 12V, 5V and 3.3V in instrumentation, communications and industrial applications.
Linear Technology PR: LTM4634 Triple Output 28VIN Step-Down ÂµModule Regulator with Integrated Heatsink delivers 70W in 4.5cm2