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DEMO MANUAL DC2258A
Quick start proceDure
Demonstration circuit 2258A is easy to set up to evalu-
ate the performance of the LT3048. Refer to 0 for proper
measurement equipment setup and follow the procedure
below:
NOTE. When measuring the output voltage ripple, connect
a X1 oscilloscope probe as shown in Figure 3.
1. Place jumper in the following positions: 1
Run
2. With power off, connect the input power supply to V
and GND.
2
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3. Turn on the power at the input.
NOTE. Make sure that the input voltage does not exceed
4.8V.
4. Connect a 20mA load from V
the proper output voltage. V
If there is no output, temporarily disconnect the load to
make sure that the load is not set too high.
5. Once the proper output voltages are established, adjust
the input voltage and load within the operating range
IN
and observe the output voltage regulation, ripple volt-
age, efficiency and other parameters.
Figure 2. Proper Measurement Equipment Setup
to GND and check for
OUT
= 19.5V to 20.5V
OUT
dc2258af
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