QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 612
BOOST CONVERTER
2
QUICK START PROCEDURE
Demonstration circuit 612 is easy to set up to evaluate
the performance of the LT3464ETS8. Refer to Figure 1
for proper measurement equipment setup and follow the
procedure below:
NOTE:
When measuring the input or output voltage ripple,
care must be taken to avoid a long ground lead on the
oscilloscope probe. Measure the input or output voltage
ripple by touching the probe tip directly across the Vin or
Vout and GND terminals. See Figure 2 for proper scope
probe technique.
1.
Make sure the SHDN jumper is in the ON position and
the CNTL jumper is in the INT REF position.
2.
Turn on the input voltage source and set it to 3.6V.
3.
Monitor the output voltage. For the small size circuit,
the output voltage should be 20.0V ±4% and for the
high performance circuit, the output voltage should be
15.0V ±4%.
4.
Apply the full rated load to the output for an input
voltage of 3.6V. For the small size circuit, this is 3mA
and for the high performance circuit, this is 9mA. The
output voltage should still be within regulation.
5.
With full rated load applied and with the input voltage
still at 3.6V, measure the input current. For the small
size circuit, the input current should be less than
31.0mA. For the high performance circuit, the input
current should be less than 54.0mA.
6.
Once the proper output voltages are established, ad-
just the loads within the operating range and observe
the output voltage regulation, ripple voltage, efficiency
and other parameters.
Figure 1.
Proper Measurement Equipment Setup
V
IN
G
N
D
Figure 2.
Measuring Input or Output Ripple