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Application Notes

Vo1 (1V/Div)

Vo2 (1V/Div)

HORIZ SCALE: 5ms/Div

Vo1 (1V/Div)

Vo2 (1V/Div)

HORIZ SCALE: 5ms/Div

Figure 4-2; Power-Up Sequence Example with Two Type ‘B’ Modules

Figure 4-3; Power-Up Sequence Example with Two Type ‘A’ Modules

Figure 4-4; Power-Up Sequence Example Using Type ‘A’ & ‘B’ Modules

The adjacent plot shows an example of power-

up sequencing between two Type ‘A’ modules.

In this example the PT3401 (3.3V) and PT3402

(2.5V) are featured. Each converter had a con-

stant current load of 5A applied to its respective

output.

The adjacent plot shows an example of power-

up sequencing between a Type ‘A’ and a Type

‘B’ module. In this example the PT3401 (3.3V)

and PT3405 (1.4V) are featured. Each converter

had a constant current load of 5A applied to its

respective output.

The adjacent plot shows an example of power-

up sequencing between two Type ‘B’ modules.

In this example the PT3405 (1.4V) and PT3406

(1.2V) are featured. Each converter had a con-

stant current load of 5A applied to its respective

output.

Vo1 (0.5V/Div)

Vo2 (0.5V/Div)

HORIZ SCALE: 5ms/Div

PT3400 Series