AP1086
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Description
Pin Assignments
(Top View)
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.
VIN
3
2
VOUT
1
Adj (GND)
Tab is VOUT
TO252-3L
(Top View)
3
Features
VIN
2
•
•
•
•
•
•
•
•
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)
VOUT
1
Adj (GND)
Tab is VOUT
TO263-3L
(Top View)
3
VIN
2
VOUT
1
Adj (GND)
Tab is VOUT
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
Adjustable Regulator
5V to 3.3V Fixed Mode Regulator
5V
5V
C1
100uF
C1
100uF
Vin
Vout
GND
Tab is Vout
Vin
3.3V/1.5A
VOUT=Vref × (1+R2/R1)
Vout
C2
100uF
2.5V/1.5A
R1
121 Ω
R2
121 Ω
Adj
Tab is Vout
Note: Vo = V RE ∗
F
AP1086
Document number: DS31028 Rev. 6 - 2
C2
100uF
1 of 10
www.diodes.com
( R2
+ )
1 R1
June 2010
© Diodes Incorporated
