Diodes AP1084 Manuel d'utilisateur télécharger pdf (Page 3)

AP1084

5A LOW DROPOUT POSITIVE ADJUSTABLE OR

FIXED-MODE REGULATOR

AP1084 Rev. 9 3 of 11 JANUARY 2010

DS31070 www.diodes.com © Diodes Incorporated

Pin Assignment

(1) TO252-3L (2) TO263-3L

OUT

Adj (GND)

( Top View )

Tab is V

OUT

Tab is V

OUT

( Top View )

Adj (GND)

(3) TO220-3L

Tab is V

OUT

Adj (GND)

( Top View)

Pin Name I/O Pin # Description

Adj (GND) I 1

Adjustable (Ground only for fixed mode)

A resistor divider from this pin to the V

OUT

pin and ground sets the output voltage

(Ground only for Fixed-Mode).

OUT

O 2

The output of the regulator. A minimum of 10uF (0.15Ω ≤ ESR ≤ 20Ω) capacitor must

be connected from this pin to ground to insure stability.

I 3

The input pin of regulator. Typically a large storage capacitor is connected from this

pin to ground to insure that the input voltage does not sag below the minimum

dropout voltage during the load transient response. This pin must always be 1.4V

(1.3V) higher than V

OUT

in order for the device to regulate properly.

Pin Description

1 2 3 4 5 6 7 8 9 10 11

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Diodes AP1084 Manuel d'utilisateur Page 3