Quick Start Procedure - Analog Devices Linear Technology DC1757B Demo Manual

DEMO MANUAL DC1757B

Quick start proceDure

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.
+
–
+
+
–
–
2
Additional Notes:
1. Usually, the worst case efficiency at full load is at 6V
2. R2 is needed for additional/constant output current
Figure 1. Proper Measurement Equipment Setup
+
C
OUT
V GND
OUT
Figure 2. Measuring Output Voltage Ripple
The board can deliver more output power at higher V
limit only.
–
.
IN
.
IN
+
–
+
+
LOAD
–
–
dc1757bf