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Diodes Semiconductor Electronic Components Datasheet

AP1117 Datasheet

1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR

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AP1117 pdf
AP1117/AP1117I
1A DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR
Description
AP1117 is a low dropout positive adjus table or fixed-mode re gulator
with 1A output c urrent capabilit y. The product is voltage specifi cally
designed to provide well-regulated supply for low IC applications such
as high-speed b us termination a nd low cur rent 3.3V logic supply.
AP1117 is also well suited for ot her applications such as VGA ca rds.
AP1117 is guar anteed to h ave lower tha n 1.4V dropout at full load
current making it ideal to provide well-regulated outputs of 1.25 to 5.0
with 6.4V to 18V input supply. AP1117 is available both in commercial
temperature gra de (AP1117) a nd in industrial temperature r ange
(AP1117I) (TO252 and SOT223).
Features
1.4V Maximum Dropout at Full Load Current
Fast Transient Response
Output Current Limiting
Built-in Thermal Shutdown
Good Noise Rejection
3-Terminal Adjustable or Fixed 1.5V, 1.8V,2.5V, 3.3V, 5.0V
Operating Junction Temperature range
0°C TJ +125°C (All packages)
-20°C TJ +125°C (see ordering information)
-40°C TJ +125°C (see ordering information)
Lead-Free Packages: SOT223, TO252, SOT89-3, TO263 and
TO220-3
Totally Lead-Free; RoHS Compliant (Notes 1 & 2)
SOT223, TO252, SOT89-3, TO263 and TO220-3: Available in
“Green” Molding Compound (No Br, Sb)
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
SOT89-3
( Top View )
3 VIN
2 VOUT
1 Adj (GND)
Tab is VOUT
SOT223
( Top View )
3 VIN
2 VOUT
1 Adj (GND)
Tab is VOUT
TO220-3
( Front View )
3
2
1
VIN
VOUT
Adj (GND)
Tab is VOUT
TO252 and TO263
( Top View )
3
VIN
Applications
PC Peripheral
Communication
Consumer Equipment
2 VOUT
1
Tab is VOUT
Adj (GND)
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen and Antimony free, "Green"
and Lead-Free.
3. Halogen and Antimony free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AP1117/AP1117I
Document number: DS31009 Rev. 23 - 2
1 of 13
www.diodes.com
June 2013http://www.Datasheet4U.com
© Diodes Incorporated



Diodes Semiconductor Electronic Components Datasheet

AP1117 Datasheet

1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR

No Preview Available !

AP1117 pdf
Typical Applications Circuit
AP1117/AP1117I
( 5V/3.3V fixed output )
( 5V/2.5V ADJ output )
Vo
VREF
(1
R2 )
R1
Pin Descriptions
Pin Number
1
I/O
I
2O
3I
Pin Name
Adj (GND)
VOUT
VIN
Function
A resistor divider from this pin to the VOUT pin and ground sets the output voltage (Ground only for
Fixed-Mode).
The output of the regulator. A minimum of 4.7µF capacitor (0.15Ω ≤ ESR 0.5) must be connected
from this pin to ground to insure stability.
The input pin of r egulator. Typically a large storage capacitor is connected from this pin to ground to
insure that the i nput voltage do es not sag below t he minimum dropout voltage during the load
transient response. This pin must always be 1.3V higher than VOUT in order for the device to regulate
properly. A mini mum of 4.7µ F c apacitor (0.1 5Ω ≤ ESR 0.5) m ust be connecte d from this pin t o
ground to insure stability.
Functional Block Diagram
VIN 3
Thermal
Shutdown
2 VOUT
+
+
+
1.25V
CURRENT
LIMIT
+
1
GND
(FIXED)
1 Adj
AP1117/AP1117I
Document number: DS31009 Rev. 23 - 2
2 of 13
www.diodes.com
June 2013
© Diodes Incorporated



Diodes Semiconductor Electronic Components Datasheet

AP1117 Datasheet

1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR

No Preview Available !

AP1117 pdf
AP1117/AP1117I
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Symbol Parameter
Rating
Unit
VIN DC Supply Voltage
TMJ Maximum Junction Temperature
Power Dissipation
SOT89-3
SOT223
PD TO220-3
TO252
TO263
-0.3 to +18
+150
Internally limited by maximum junction
temperature of +150°C (Note 4)
V
°C
mW
TST Storage Temperature
-65 to +150
°C
Notes:
4. AP1117 contains an internal thermal limiting circuit that is designed to protect the regulator in the event that the maximum junction temperature
exceeded. When activated, typically at +150°C, the regulator output switches off and then back on as the die cools.
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol Parameter
AP1117 0
TOP Operating Junction Temperature Range AP1117I
Note: 11. 22uF is suggested for Cin/Cout value when application is required to work under 0.
Min Max Unit
+125
-40 +125
°C
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Parameter C
onditions
Min Typ Max Unit
Reference Voltage
Output Voltage
Line Regulation
Load Regulation
AP1117-ADJ
AP1117-1.5
AP1117-1.8
AP1117-2.5
AP1117-3.3
AP1117-5.0
AP1117-XXX
AP1117-ADJ
AP1117-1.5
AP1117-1.8
AP1117-2.5
TA = +25°C, (VIN-OUT) = 1.5V
IO = 10mA
IOUT = 10mA, TA = +25°C,
3V VIN 12V
IOUT = 10mA, TA = +25°C,
3.3V VIN 12V
IOUT = 10mA, TA = +25°C,
4V VIN 12V
IOUT = 10mA, TA = +25°C,
4.8V VIN 12V
IOUT = 10mA, TA = +25°C,
6.5V VIN 12V
IO = 10mA,VOUT +1.5V < VIN < 12V,
TA = 25°C
VIN = 3.3V,VADJ = 0, 0mA < IO < 1A,
TA = +25°C (Notes 5, 6)
VIN = 3V, 0mA < IO < 1A,
TA = +25°C (Notes 5, 6)
VIN = 3.3V, 0mA < IO < 1A,
TA = +25°C (Notes 5, 6)
VIN = 4V, 0mA < IO < 1A,
TA = +25°C (Notes 5, 6)
1.225 1.250
1.470 1.500
1.764 1.800
2.450 2.500
3.235 3.300
4.900 5.000
——
——
— 12
— 15
— 20
1.275
1.530
1.836
2.550
3.365
5.100
0.2
1
15
18
25
V
V
V
V
V
V
%
%
mV
mV
mV
Notes:
5. See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction
temperature by low duty cycle pulse testing. Load regulation is measured at the output lead = 1/18” from the package.
6. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the difference between input
and output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range.
AP1117/AP1117I
Document number: DS31009 Rev. 23 - 2
3 of 13
www.diodes.com
June 2013
© Diodes Incorporated




Part Number AP1117
Description 1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR
Maker Diodes Incorporated
Total Page 13 Pages
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