AP1084 Diodes, Inc., AP1084 Datasheet - Page 2

• Manufacturer Part Number: AP1084
• Description: 5a Low Dropout Positive Adjustable Or Fixed-mode Regulator
• Manufacturer: Diodes, Inc.

Pin Assignment
Pin Description
AP1084 Rev. 3
(GND)
Name
V
Adj
V
out
in
I/O
O
I
I
FRONT VIEW
FRONT VIEW
TO220-3L
TO263-3L
Tab is V
Tab is V
3
2
1
252/220
TO263/
3
2
1
1
2
3
out
out
V
out
Adjustable (Ground only for fixed mode)
A resistor divider from this pin to the V
voltage (Ground only for Fixed-Mode).
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.
The input pin of regulator. Typically a large storage capacitor (0.15Ω ≤
ESR ≤ 20Ω) 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
Adj ( GND)
V
Adj ( GND)
V
V
in
in
out
www.diodes.com
out
5A LOW DROPOUT POSITIVE ADJUSTABLE OR
in order for the device to regulate properly.
2 of 10
Function
TO252-3L
FRONT VIEW
FIXED-MODE REGULATOR
Tab is V
out
pin and ground sets the output
3
2
1
out
V
out
©
Adj ( GND)
V
AP1084
in
MARCH 2008
Diodes Incorporated