SS6383ACSTR datasheet(6/7 Pages) SSC

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SS6383A(G)

11/07/2004 Rev.2.01

PIN DESCRIPTIONS (TO-252-5)

PIN 1:

VIN

- Input supply pin. It provides

main

power

create

the

external reference voltage by

divider resistors for regulating

VREF and VOUT.

PIN 2:

GND

- Ground pin.

PIN 3:

VCNTL - Input supply pin. It is used to

supply all the internal control

circuitry.

PIN 4:

VREF - Reference voltage input. Pull

this pin low to shutdown device.

PIN 5:

VOUT - Output pin.

APPLICATION INFORMATION

Layout Consideration

As the SS6383A is in SO-8 and TO-252-5

packages, it is unable to dissipate heat easily when

it operates at high current. To avoid exceeding

the maximum junction temperature, a suitable

copper area must be used.

The large copper area shown at VCNTL pins is

able to relieve the thermal dissipation. Using the

via to direct heat into the large copper area shown

on the bottom layer also helps significantly.

All capacitors should be placed as close as

possible to the relevant pins.

Figure 10. Top layer

Figure 11. Bottom layer

Figure 12. Placement

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