Diodes AP1084 - Manual (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
3
2
1
V
IN
V
OUT
Adj (GND)
( Top View )
Tab is V
OUT
3
2
1
V
IN
V
OUT
Tab is V
OUT
( Top View )
Adj (GND)
(3) TO220-3L
Tab is V
OUT
V
OUT
Adj (GND)
( Top View)
V
IN
1
2
3
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).
V
OUT
O 2
The output of the regulator. A minimum of 10uF (0.15 Ω ≤ ESR ≤ 20Ω) capacitor must
be connected from this pin to ground to insure stability.
V
IN
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