Analog Devices Linear ADI Power DC2638A-C Demo Manual

DESCRIPTION
Demonstration circuit 2638A-C is a high efficiency, high
density, µModule regulator with 4.5V to 16V input range.
The output voltage is adjustable from 0.5V to 3.3V, and
it can supply 200A maximum load current. The demo
board has four LTM 4678
®
LTM4678 is a dual 25A or single 50A step-down regula-
tor with PMBus power system management. Please see
LTM4678 data sheet for more detailed information.
DC2638A-C powers up to default settings and produce
power based on configuration resistors without the need
for any serial bus communication. This allows easy evalu-
ation of the DC/DC converter. To fully explore the extensive
power system management features of the part, download
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PERFORMANCE SUMMARY
PARAMETER
Input Voltage Range
Output Voltage, V
OUT
Maximum Output Current, I
OUT
Typical Efficiency
Default Switching Frequency
BOARD PHOTO
LTM4678 Dual 25A or Single 50A
µModule Regulator with Digital Power
System Management 4x LTM4678; 200A
µModule regulators, and the
®
Specifications are at T
CONDITIONS
V = 4.5V–16V, I
IN
V = 4.5V–16V, V
IN
V = 12V, V
IN OUT
Figure 1. 4× LTM4678; 200A DC2638A-C Demo Circuit
DEMO MANUAL DC2638A-C
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:
LTpowerPlay
For more details and instructions of LTpowerPlay, please
refer to LTpowerPlay GUI for LTM4678 Quick Start Guide.
Design files for this circuit board are
= 25°C
A
= 0A to 200A
OUT
= 0.5V to 3.3V
OUT
= 1.0V, I = 200A
OUT
onto your PC and use ADI's
®
available.
VALUE
4.5V to 16V
0.5V to 3.3V, Default: 1.0V
200A
86% (See Figure 5)
350kHz
Rev. 0
1