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Diodes Semiconductor Electronic Components Datasheet

AP1084 Datasheet

5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR

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AP1084 pdf
Features
AP1084
5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
General Description
1.4V Maximum Dropout at Full Load Current
Built-in Thermal Shutdown
Output Current Limiting
Adjustable Output Voltage or Fixed 1.5V, 1.8V, 2.5V,
3.3V, 5.0V
Fast Transient Response
Good Noise Rejection
Lead-Free Package: TO252-3L, TO263-3L, and
TO220-3L
TO252-3L: Available in “Green” Molding Compound
(No Br, Sb) (Note 1)
Lead Free Finish/RoHS Compliant for Lead Free
products (Note 2)
AP1084 is a low dropout positive adjustable or fixed-mode
regulator with 5.0A output current capability. The product is
specifically designed to provide well-regulated supply for low
voltage IC applications such as high-speed bus termination and
low current 3.3V logic supply. AP1084 is also well suited for other
applications such as VGA cards. AP1084 is guaranteed to have
lower than 1.4V dropout at full load current making it ideal to
provide well-regulated outputs of 1.25 to 3.3V with 4.7 to 12V
input supply.
Ordering Information
AP1084 X XX X X
Package
Vout
D : TO252-3L
K : TO263-3L
T : TO220-3L
Blank : Adj
15 = 1.5V
18 = 1.8V
25 = 2.5V
33 = 3.3V
50 = 5.0V
Lead Free
L : Lead Free
G : Green (Note 1)
Packing
-U : Tube
-13 : Taping
Note:
1. Green is only available for TO252-3L.
2. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Note:
Device
Package
Code
Packaging
(Note 3)
Tube/Bulk
Quantity
Part Number
Suffix
13” Tape and Reel
Quantity
Part Number
Suffix
AP1084D
D
TO252-3L
80
-U
2500/Tape & Reel
-13
AP1084K
K
TO263-3L
50
-U
800/Tape & Reel
-13
Lead-free
AP1084T
T
TO220-3L
50
-U
NA NA
Lead-free
3. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP1084 Rev. 1
1 of 10
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated



Diodes Semiconductor Electronic Components Datasheet

AP1084 Datasheet

5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR

No Preview Available !

AP1084 pdf
Block Diagram
Vin 3
Thermal
Shutdown
Pin Assignment
AP1084
5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
2 Vout
+
+-
1.25V +
CURRENT
LIMIT
+
1 Adj
TO263-3L
FRONT VIEW
3 Vin
2 Vout
1 Adj ( GND)
Tab is Vout
TO220-3L
FRONT VIEW
3
2
1
Tab is Vout
Vin
Vout
Adj ( GND)
TO252-3L
FRONT VIEW
3
Vin
2 Vout
1
Tab is Vout
Adj ( GND)
AP1084 Rev. 1
2 of 10
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated



Diodes Semiconductor Electronic Components Datasheet

AP1084 Datasheet

5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR

No Preview Available !

AP1084 pdf
Pin Description
AP1084
5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Name
Adj
(GND)
Vout
Vin
Function
I/O TO263/
252/220
Adjustable (Ground only for fixed mode)
I 1 A resistor divider from this pin to the Vout pin and ground sets the
output voltage (Ground only for Fixed-Mode).
The output of the regulator. A minimum of 10uF (0.15Ω ≤ ESR
O 2 20) 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 20) is connected from this pin to ground to insure
I
3
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 Vout in order for the device to regulate
properly.
Absolute Maximum Ratings
Symbol
Vin
TST
TOP
TM
Parameter
DC Supply Voltage
Storage Temperature
Operating Junction Temperature Range
Maximum Junction Temperature
Rating
-0.3 to 12
-65 to +150
0 to +125
150
Unit
V
oC
oC
oC
AP1084 Rev. 1
3 of 10
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated




Part Number AP1084
Description 5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR
Maker Diodes Incorporated
Total Page 10 Pages
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