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AP1086 Datasheet

1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR

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AP1086
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Description
Pin Assignments
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.
(Top View)
3 VIN
2 VOUT
1 Adj (GND)
Tab is VOUT
TO252-3L
(Top View)
Features
3 VIN
• 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)
2 VOUT
1 Adj (GND)
Tab is VOUT
TO263-3L
(Top View)
3
2
1
Tab is VOUT
TO220-3L
VIN
VOUT
Adj (GND)
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
5V
C1
100uF
Adjustable Regulator
5V
C1
100uF
Vin
Vout
GND
Tab is Vout
3.3V/1.5A
C2
100uF
Vin
Vout
Adj
Tab is Vout
VOUT=Vref × (1+R2/R1)
R1
121
R2
121
2.5V/1.5A
C2
100uF
Note:
Vo
=
V RE
F
(
1
+
R2
R1
)
AP1086
Document number: DS31028 Rev. 6 - 2
1 of 10
www.diodes.com
June 2010
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

AP1086 Datasheet

1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR

No Preview Available !

Pin Descriptions
AP1086
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Pin Name I/O
Adj (GND)
VOUT
O
VIN I
Pin #
1
2
3
Description
Adjustable (Ground only for fixed mode)
The output of the regulator. A minimum of 10uF capacitor must be connected
from this pin to ground to insure stability.
The input pin of regulator. Typically a large storage capacitor is connected
from this pin to ground to insure that the input voltage does not sag below the
minimum dropout voltage during the load transient response. This pin must
always be 1.4V higher than VOUT in order for the device to regulate properly.
Functional Block Diagram
VIN 3
Thermal
Shutdown
2 VOUT
+
+-
1.25V +
CURRENT
LIMIT
+
1 Adj
Absolute Maximum Ratings
Symbol
VIN
TST
TMJ
Parameter
DC Supply Voltage
Storage Temperature
Maximum Junction Temperature
Recommended Operating Conditions
Symbol
Parameter
Top Operating Junction Temperature Range
Rating
-0.3 to 12
-65 to +150
150
Unit
V
oC
oC
Min Max Unit
0 125 oC
AP1086
Document number: DS31028 Rev. 6 - 2
2 of 10
www.diodes.com
June 2010
© Diodes Incorporated


Part Number AP1086
Description 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR
Maker Diodes Incorporated
Total Page 10 Pages
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