LTM4615 Series Triple Output µModule Regulators

Analog Devices' LTM4615 is a complete 4 A dual output switching mode DC/DC power supply plus an additional 1.5 A VLDO™ (very low dropout) linear regulator. Included in the package are the switching controllers, power FETs, inductors, a 1.5 A regulator and all support components. The dual 4 A DC/DC converters operate over an input voltage range of 2.375 V to 5.5 V, and the VLDO operates from a 1.14 V to 3.5 V input. The LTM4615 supports output voltages ranging from 0.8 V to 5 V for the DC/DC converters and 0.4 V to 2.6 V for the VLDO. The three regulator output voltages are set by a single resistor for each output. Only bulk input and output capacitors are needed to complete the design.

The low profile package (2.82 mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. High switching frequency and a current mode architecture enables a very fast transient response to line and load changes without sacrificing stability. The device supports output voltage tracking for supply rail sequencing.