AP1084
5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Features
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
•
Package : TO252, TO263, TO220
•
•
General Description
AP1084 is a low dropout positive adjustable or fixed-
mode regulator with minimum of 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
X
X
X
Low Dropout Regulator
Package
D : TO252-3L
K : TO263-3L
T : TO220-3L
Vout
Blank : Adj
15 = 1.5V
18 = 1.8V
25 = 2.5V
33 = 3.3V
50 = 5.0V
Lead Free
Packing
Blank : Normal
Blank : Tube
L : Lead Free Package A : Taping
Typical Circuit
5.0V to 3.3V Fixed Mode Regulator
5V
5V
C1
100uF
Vin
Vout
GND
Tab is Vout
3.3V/5A
C2
100uF
Vin
Vout
Adj
Tab is Vout
R1 121
Ω
R2 121
Ω
C2
100uF
2.5V/5A
Adjustable Regulator
C1
100uF
Note:
V
o
=
V
REF
∗
(1
+
R
2
)
R
1
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev.1.0 Aug.27, 2004
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