AP1084

5A Low Dropout Positive Adjustable or Fixed-Mode Regulator

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

1/10

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

Ordering Information

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.

AP1084 X X X X

Low Dropout Regulator

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

Packing

Blank : Tube

A : Taping

Lead Free

Blank : Normal

L : Lead Free Package

Typical Circuit

5.0V to 3.3V Fixed Mode Regulator

C2

100uF

5V

3.3V/5A

Tab is Vout

Vin

Vout

GND

C1

100uF

Adjustable Regulator

R1

R2

C2

100uF

5V

2.5V/5A

Tab is Vout

Vin

Vout

Adj

C1

100uF

121

121

Ω

Ω

)

1

2

REF

o

R

R

(1

V

V

+

∗

=

Note: