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dc2448adf
DEMO MANUAL
DC2448A-D
Description
LTM4636-1
PolyPhase 160A Step-Down Power µModule Regulator
with Overvoltage and Overtemperature Protection
Demonstration circuit DC2448A-D features a PolyPhase
®
design using the
, a 40A high efficiency,
switch mode step-down power µModule
®
regulator with
overvoltage and overtemperature protection features. The
input voltage range is from 9V to 15V. The output volt-
age range is 0.6V to 3.3V. The DC2448A-D can deliver a
nominal 160A output current. DC2448A-D has on-board
hot swap circuit that can disconnect input supply and
protect the LTM4636-1 and the load under overvoltage
and overtemperature conditions. As explained in the data
sheet, output current derating is necessary for certain
V
IN
, V
OUT
and thermal conditions. The board operates in
continuous conduction mode in heavy load conditions.
L
, LT, LTC, LTM, Linear Technology, Burst Mode, µModule, PolyPhase and the Linear logo
are registered trademarks of Analog Devices, Inc. All other trademarks are the property of their
respective owners.
BoarD photo
For high efficiency at low load currents, the MODE_PLLIN
jumper selects pulse-skipping mode for noise sensitive
applications or Burst Mode
®
operation in less noise sensi-
tive applications. The MODE_PLLIN pin also allows the
LTM4636-1 to synchronize to an external clock signal.
DC2448A-D has the option of choosing both internal
and external compensation circuits for LTM4636-1. The
LTM4636-1 data sheet must be read in conjunction with
this demo manual prior to working on or modifying demo
circuit DC2448A-D.
Design files for this circuit board are available at
