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DEMO MANUAL DC2702B-B
PERFORMANCE SUMMARY
PARAMETER
Input Voltage Range
Output Voltage, V
OUT0
Maximum Output Current, I
OUT0
Typical Efficiency
Default Switching Frequency
QUICK START PROCEDURE
MAXIMUM OUTPUT CURRENT
50A
100A
200A
300A
400A
Demonstration circuit 2702B-B is easy to set up to evalu-
ate the performance of the LTM4700EY. See Figure 2 for
the proper measurement equipment setup and follow the
procedure below.
1. With power off, connect the input power supply to V
(4.5V to 16V) and GND (input return).
2. Connect the 1.0V output load between V
(Initial load: no load).
3. Connect the Digital Voltmeters (DVMs) to the input
and outputs. Set default jumper position:
JP1:
ON
JP2:
ON
JP3:
ON
4. Turn on the input power supply and check for the proper
output voltages. VOUT0 should be 1.0V ±0.5%.
2
Specifications are at T
CONDITIONS
V
= 4.5V to 16V, I
= 0A to 100A
IN
OUT0
V
= 4.5V to 16V, V
= 0.5V to 1.8V
IN
OUT0
V
= 12V, V
= 1.0V, I
= 100A
IN
OUT0
OUT0
NUMBER OF OUTPUTS
2
1
1
1
1
IN
and GND
OUT0
= 25°C
A
MIN
4.5
0.5
88.7 (See Figure 5)
NUMBER OF LTM4700 µModule
REGULATORS ON THE BOARD
1
1
2
3
4
5. Once the proper output voltages are established,
adjust the loads within the operating range and ob-
serve the output voltage regulation, ripple voltage and
other parameters.
6. Connect the dongle and control the output voltages
from the GUI. For more details, refer to the LTpowerPlay
GUI for the LTM4700 Quick Start Guide.
Notes
The internal bias circuit is enabled when V
is ON.
When measuring the output or input voltage ripple, do
not use the long ground lead on the oscilloscope probe.
See Figure 3 for the proper scope probe technique. Short,
stiff leads need to be soldered to the (+) and (–) terminals
of an output capacitor. The probe's ground ring needs to
touch the (–) lead, and the probe tip needs to touch the
(+) lead.
TYP
MAX
16
1.0
1.8
100
350
DEMO BOARD NUMBER
DC2702B-A
DC2702B-B
DC2784B-A
DC2784B-B
DC2784B-C
>7V and JP3
IN
UNITS
V
V
A
%
kHz
Rev. 0
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