Quick Start Procedure - Linear Technology DC1392A Demo Manual

DEMO MANUAL DC1392A

QUICK START PROCEDURE

Demonstration circuit 1392A is an easy way to evaluate the
performance of the LTM4604AEV. Please refer to Figure 1
for proper measurement equipment setup and follow the
procedure below:
1. Place jumpers in the following positions for a typical
1.2V application:
OUT
VO SELECT
1.2V
2. With power off, connect the input power supply, load
and meters as shown in Figure 1. Preset the load to
0A and V supply within the operating range of the
IN
LTM4604A.
3. Turn on the power at the input. The output voltage
should be 1.2V ±2%.
2
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TRACK RUN/SS
OFF ON
Figure 1. Test Setup of DC1392A
4. Once the proper output voltage is established, adjust
the load within the operating range and observe the
output voltage regulation, ripple voltage, efficiency and
other parameters
5. To measure input and output ripple, please refer to
Figure 2 for proper setup.
6. For optional load transient test, apply adjustable pulse
signal between IOSTEP CLK and GND pins. Pulse am-
plitude sets the current step. The pulse signal should
have very small duty cycle (<5%) to limit the thermal
stress on the transient load circuit. The output tran-
sient current can be monitored at BNC connector J1
(10mV/A), the output voltage can be monitored at BNC
connector J2.
dc1392af