2

dc2367af

DEMO MANUAL DC2367A

QUICK START PROCEDURE

Demonstration circuit DC2367A is an easy way to evaluate

the performance of the LTM4632. Please refer to Figure 1

for test setup connections and follow the procedure below.

1. With power off, place the jumpers in the following

JP1

JP2

JP3

JP4

JP6

RUN1

RUN2

TRACK/SS

MODE

VDDQ SEL

ON

ON

SS

CCM

2.5V

2. Before powering up the input supply and loads, preset

the input voltage supply to be between 3.6V to 15V.

Preset the load current for each output rail to 0A.

3. With power off, connect the loads, input voltage supply

and meters as shown in Figure 1.

4. Turn on the input power supply. The output voltage me-

tersforeachoutputrailshoulddisplaytheprogrammed

output voltage ±1.5%.

5. Once the proper output voltages are established, ad-

just the load current on each rail within the 0A to 3A

range and observe each output rail’s load regulation,

efficiency, and other parameters.

6. To observe increased light load efficiency place the

mode pin jumper (JP4) in the BURST MODE position.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Voltage Range

3.6

15

V

Resistor Programmable, Jumper Selectable

1.5 (±1.5%)

1.8 (±1.5%)

2.5 (±1.5%)

V

V

V

Conditions. See Data Sheet for Details

3

A

0.75

0.9

1.25

V

V

V

Conditions. See Data Sheet for Details

±3

A

Default Operating Frequency

1

MHz

Efficiency

83.9

(See Figure 2)

72.3

(See Figure 3)

%

%