2
dc2341af
DEMO MANUAL DC2341A
QUICK START PROCEDURE
Demonstration circuit 2341A is easy to set up to evaluate
the performance of the LTC7130. Refer to Figure 1 for
the proper measurement equipment setup and follow the
procedure below:
1. With power off, connect the input power supply to V
IN
(4.5V to 20V) and GND (input return).
2. Connect the 1.5V output load between V
OUT
and GND
(Initial load: no load).
3. Connect the DVMs to the input and outputs.
4. Turn on the input power supply and check for the proper
output voltages. V
OUT
should be 1.5V ±2%.
5. Once the proper output voltages are established, adjust
the loads within the operating range and observe the
output voltage regulation, ripple voltage and other
parameters.
NOTE: When measuring the output or input voltage ripple,
do not use the long ground lead on the oscilloscope probe.
See Figure 2 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.
Figure 1. Proper Measurement Equipment Setup
