Linear Analog Devices DC2605A Demo Manual

Polyphase Single 120A Output Synchronous Buck
Converter with Power System Management
DESCRIPTION
Demonstration circuit 2605A is a high efficiency, high
density, single-output buck converter with 7V to 14V input
range. The output voltage is adjustable from 0.5V to 1.5V,
and can supply up to 120A of load current with a 1V out-
put. The demo board features the
a slave controller LTC3874-1 to provide a 4-phase buck
converter solution. The LTC3884-1 is a dual output poly
phase step-down controller for ultra-low DCR sensing
with digital power system management. The LTC
is a dual PolyPhase current mode synchronous step-
®
down slave controller. Please see LTC3884-1 data sheet
for more detailed information.
DC2605A powers up to default settings and produces
power based on configuration resistors or with its
non-volatile memory without the need for any serial
bus communication. This allows easy evaluation of the
DC/DC converter. To fully explore the extensive power
PERFORMANCE SUMMARY
PARAMETER
Input Voltage Range
Output Voltage, V
OUT
Maximum Output Current, I
OUT
Typical Efficiency
Peak Efficiency
Default Switching Frequency
LTC3884ERHE-1, LTC3874EUF-1
LTC 3884-1paired with
®
3874-1
®
Specifications are at T
CONDITIONS
V = 7-14V, Single Output, I
IN
V = 7-14V, Single Output, V
IN
V = 12V, Single Output, V
IN
V = 12V, Single Output, V
IN
DEMO MANUAL DC2605A
system management features of the part, download the
GUI software LTpowerPlay
2
I C/SMBus/PMBus dongle DC1613A to connect to the
board. LTpowerPlay allows the user to reconfigure the part
on the fly and store the configuration in EEPROM, view
telemetry of voltage, current, temperature and fault status.
GUI Download
The software can be downloaded from:
http://www.linear.com/ltpowerplay
For more details and instructions of LTpowerPlay, please
refer to LTpowerPlay GUI for LTC3884-1 demo manual.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2605A
All registered trademarks and trademarks are the property of their respective owners.
= 25°C
A
= 0A to 120A
OUT
= 0.5V to 1.5V
OUT
= 1.0V, 120A Load
OUT
= 1.0V, 70A Load
OUT
onto your PC and use LTC's
®
VALUE
7V to 14V
Default: 1V
120A
90.2%
92.2%
425kHz
dc2605af
1