Quick Start Procedure - Linear Technology DC1764A Demo Manual

DEMO MANUAL DC1764A

QUICK START PROCEDURE

This Demonstration circuit 1764A can be evaluated using
the setup shown in Figure 1.
1. Connect voltmeters to V
tions for jumper JP1 (ON) and JP2 (PWM).
2. With input power supply set for 0V, connect the supply
to V and GND terminals.
IN
3. Slowly increase the input power supply to 1.8V. Observe
output voltage and verify that it meets the specifications
in the Performance Summary table.
Adjustable
Power Supply
2
and V , select upper posi-
IN OUT
6V, 3A -
V
+
A
Figure 1. Proper Measurement Equipment Setup
4. Connect a suitable load resistor or active load to the
output terminals and verify that it meets specifications
in the Performance Summary table.
5. Use a scope to monitor the output voltage ripple in
both PWM mode and Burst Mode operation by moving
the mode jumper JP2 to the appropriate position. See
Figure 4 for correct method for evaluating output ripple.
6. Note: If jumper JP2 is set for Burst Mode operation,
maximum output current is limited to approximately
100mA at 5V .
IN
-
A
V
+
Load
dc1764af