Performance Summary; Quick Start Procedure - Linear Analog Devices ADI Power DC2570A Demo Manual

DEMO MANUAL DC2570A

PERFORMANCE SUMMARY

PARAMETER
Input Voltage Range
Output Voltage, V
OUT
Maximum Output Current, I
OUT
Typical Efficiency
Default Switching Frequency

QUICK START PROCEDURE

Table 1. LTM4678 Demo Boards for Up to 250A Point-of-Load Regulation
MAXIMUM OUTPUT CURRENT
25A
50A
100A
150A
200A
250A
Demonstration circuit 2570A is easy to set up to evaluate
the performance of the LTM4678. Refer to 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 DVMs to the input and output. Set default
jumper position: SW1: ON.
4. Turn on the input power supply and check for the
proper output voltages. V
2
Specifications are at T
CONDITIONS
V = 4.5V to 16V, I
IN
V = 4.5V to 16V, V
IN
V = 12V, V
IN
NUMBER OF OUTPUTS
2
1
1
1
1
1
and GND
OUT
should be 1.0V ±0.5%.
OUT
= 25°C
A
= 0A to 50A
OUT
= 0.5V to 3.3V
OUT
= 1.0V, I = 50A
OUT OUT
NUMBER OF LTM4676 µModule
REGULATORS ON THE BOARD
1
1
2
3
4
5
5. Once the proper output voltage is established, adjust the
load within the operating range and observe the output
voltage regulation, ripple voltage and other parameters.
6. Connect the dongle and control the output voltages
from the GUI. See LTpowerPlay GUI for the LTM4678
IN
Quick Start Guide for details.
Note: When measuring the output or input voltage
ripple, do not use the long ground lead on the oscil-
loscope 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.
MIN TYP MAX UNITS
4.5 16
0.5 1.0 3.3
50
86
(See Figure 5)
500
DEMO BOARD NUMBER
DC2552A
DC2570A
DC2638A-A
DC2638A-B
DC2638A-C
DC2638A-D
V
V
A
%
kHz
Rev. 0