AP1086

1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR

FIXED-MODE REGULATOR

AP1086

Document number: DS31028 Rev. 6 - 2

1 of 10

www.diodes.com

June 2010

© Diodes Incorporated

Description

AP1086 is a low dropout positive adjustable or fixed-mode

regulator with 1.5A 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. AP1086 is also well suited

for other applications such as VGA cards. AP1086 is

guaranteed to have lower than 1.4V dropout at full load

current making it ideal to provide well-regulated outputs of

1.25V to 5.0V with 4.7 to 12V input supply by different output

voltage.

Features

•

3-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V,3.3V,

5.0V

•

1.4V Maximum Dropout at Full Load Current

•

Fast Transient Response

•

Built-in Thermal Shutdown

•

Output Current Limiting

•

Lead Free Packages: TO252-3L, TO263-3L, TO220-3L

•

TO252-3L, TO263-3L, and TO220-3L: Available in

“Green” Molding Compound (No Br, Sb)

•

Lead Free Finish/ RoHS Compliant (Note 1)

Pin Assignments

3

2

1

Adj (GND)

(Top View)

TO252-3L

3

2

1

(Top View)

Adj (GND)

TO263-3L

Adj (GND)

(Top View)

1

2

3

TO220-3L

Notes:

1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/products/lead_free.html.

Typical Application Circuit

5V to 3.3V Fixed Mode Regulator

Adjustable Regulator

C2

100uF

5V

3.3V/1.5A

Tab is Vout

Vin

Vout

GND

C1

100uF

R1

121

R2

121

C2

100uF

5V

2.5V/1.5A

Tab is Vout

Vin

Vout

C1

100uF

Adj

(1+R2/R1)

Ω

Ω

×

)

1

2

RE

F

o

R

R

(

1

V

V

+

∗

=

Note: