The LTM®4630 is a dual 18A or single 36A output switching
mode step-down DC/DC μModule® (micromodule) regulator. Included in the package are the switching controllers,
power FETs, inductors, and all supporting components.
Operating from an input voltage range of 4.5V to 15V, the
LTM4630 supports two outputs each with an output voltage
range of 0.6V to 1.8V, each set by a single external resistor.
Its high efficiency design delivers up to 18A continuous
current for each output. Only a few input and output capacitors are needed. The LTM4630 is pin compatible with
the LTM4620 and LTM4620A (dual 13A, single 26A) and
the LTM4628 (dual 8A, single 16A).
The device supports frequency synchronization, multiphase operation, Burst Mode operation and output voltage
tracking for supply rail sequencing and has an onboard
temperature diode for device temperature monitoring. High
switching frequency and a current mode architecture enable
a very fast transient response to line and load changes
without sacrificing stability.
Fault protection features include overvoltage and
overcurrent protection. The LTM4630 is offered in 16mm
× 16mm × 4.41mm LGA and 16mm × 16mm × 5.01mm
BGA packages. The LTM4630 is ROHS compliant.
