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dc2081a-af

DEMO MANUAL DC2081A-A

DC2081A-A BOARD PHOTO

QUICK START PROCEDURE

Demonstration circuit DC2081A-A is easy to set up to

evaluate the performance of the LTM4630EV. Please refer

to Figure 1 for proper measurement setup and follow the

procedure below:

1. With power off, connect the input power supply, load

and meters as shown in Figure 1. Preset the load to 0A

2. Turn on the power supply at the input. The output volt-

age should be 1.0V ± 1.5% (0.985V ~ 1.015V).

3. Oncetheproperoutputvoltageisestablished,adjustthe

load within the operating range and observe the output

voltage regulation, output voltage ripple, efficiency and

other parameters. Output ripple can be measured at J6

with BNC cables.

4. (Optional) For optional load transient test, apply an ad-

justablepulsesignalbetween“IOSTEPCLK”and“GND”

test point. Pulse amplitude (3V ~ 3.5V) sets the load

stepcurrentamplitude.Theoutputtransientcurrentcan

be monitored at the BNC connector J5 (15mV/A). The

pulse signal should have very small duty cycle (< 10%)

to limit the thermal stress on the transient load circuit.