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The LTM®4643 is a quad DC/DC step-down μModule
(power module) regulator with 3A per output. Outputs can
be paralleled in an array for up to 12A capability. Included
in the package are the switching controllers, power FETs,
inductors and support components. Operating over an
input voltage range of 4V to 20V or 2.375V to 20V with
an external bias supply, the LTM4643 supports an output
voltage range of 0.6V to 3.3V each set by a single external
resistor. Its high efficiency design delivers 3A continuous
output current per channel. Only bulk input and output
capacitors are needed.
Fault protection features include overvoltage, overcurrent
and overtemperature protection. The LTM4643 is offered
in a 9mm ×15mm × 1.82mm LGA and 9mm × 15mm ×
2.42mm BGA packages with SnPb (BGA) or RoHS compliant terminal finish.