AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
AP1117
Document number: DS31009 Rev. 21 - 2 1 of 11
www.diodes.com September 2011
© Diodes Incorporated
Description
AP1117 is a low dropout positive adjustable or fixed-mode
regulator with 1A output current capability. The product is
voltage specifically desig ned to provide well-regulated s upply
for low IC applications such as high-speed bus termination
and low current 3.3V logic su pply. AP1117 is also well suited
for other applications such as VGA cards. AP1117 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 5.0 with 6.4V to 18V input supply. AP1117 is available
in commercial temperature grade.
Features
• 1.4V Maximum Dropout at Full Load Curre nt
• 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
• Lead Free Packages: SOT223-3L, TO252-3L, SOT89-3L,
TO263-3L and T O220-3L
• SOT223-3L, TO252-3L, SOT89-3L, TO263-3L and
TO220-3L: Available in “Green” Molding Compound
(No Br, Sb)
• Lead Free Finish/RoHS Compliant (Note 1)
Applications
• PC Peripheral
• Communication
Pin Assignments
SOT89-3L
Adj (GND)
VOUT
VIN
1
3
2
Tab is VOUT
( Top View )
SOT223-3L
VIN
VOUT
Adj (GND)
Tab is VOUT
( Top View )
3
2
1
TO220-3L
Tab is VOUT
3VIN
2
1
VOUT
Adj (GND)
( Front View )
TO252-3L and TO263 -3L
3
2
1
VIN
VOUT
Tab is VOUT
( Top View )
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.
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
AP1117
Document number: DS31009 Rev. 21 - 2 2 of 11
www.diodes.com September 2011
© Diodes Incorporated
Typical Application Circuit
C2
22uF
5V
3.3V/1A
Tab is VOUT
VIN
VOUT
GND
C1
10uF
( 5V/3.3V fixed output )
R1
121
R2
121
C2
22uF
5V
2.5V/1A
Tab is VOUT
VIN
VOUT
Adj
C1
10uF
o
V
( 5V/2.5V ADJ output )
)
R
R
(1 VV 1
2
REFo+×=
Note:
Ω
Ω
Pin Descriptions
Pin Name I/O PIN # Description
Adj (GND) I 1 A resistor divider from this pin to the VOUT pin and ground sets the output voltage
(Ground only for Fixed-Mode).
VOUT O 2
The output of the regulator. A minimum of 10uF capacitor (0.15Ω ≤ ESR ≤ 20Ω) must
be connected from this pin to ground to insure stability.
VIN I 3
The input pin of regulator. T ypically a large storag e capacitor is c onnected 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 1.3V higher than
VOUT in order for the device to regulate properly.
Functional Block Diagram
3
Thermal
Shutdown 1
2VOUT
Adj
1.25V +
+
CURRENT
LIMIT
VIN
-
+
+
1
GND
(FIXED)
-
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
AP1117
Document number: DS31009 Rev. 21 - 2 3 of 11
www.diodes.com September 2011
© Diodes Incorporated
Absolute Maximum Ratings
Symbol Parameter Rating Unit
VIN DC Supply Voltage -0.3 to 18 V
TMJ Maximum Junction T emperature 150 °C
PD
Power Dissipation
SOT89-3L
SOT223-3L
TO220-3L
TO252-3L
TO263-3L
Internally limited by maximum
junction temperature
of 150 °C (Note 2)
mW
TST Storage Temperature -65 to +150 °C
Notes: 2. 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
Symbol Parameter Min Max Unit
TOP Operating Junction Temperature Ran ge 0 125 °C
Electrical Characteristics (Under Operating Conditions)
Parameter Conditions Min Typ. Max Unit
Reference Voltage AP1117-ADJ TA = 25oC, (VIN-OUT) = 1.5V
IO = 10mA 1.225 1.250 1.275 V
Output Voltage
AP1117-1.5 IOUT = 10mA, TA = 25oC,
3V ≤ VIN ≤ 12V 1.470 1.500 1.530 V
AP1117-1.8 IOUT = 10mA, TA = 25oC,
3.3V ≤ VIN ≤ 12V 1.764 1.800 1.836 V
AP1117-2.5 IOUT = 10mA, TA = 25oC,
4V ≤ VIN ≤ 12V 2.450 2.500 2.550 V
AP1117-3.3 IOUT = 10mA, TA = 25oC,
4.8V ≤ VIN ≤ 12V 3.235 3.300 3.365 V
AP1117-5.0 IOUT = 10mA, TA = 25oC,
6.5V ≤ VIN ≤ 12V 4.900 5.000 5.100 V
Line Regulation AP1117-XXX IO = 10mA,VOUT+1.5V < VIN < 12V,
TA = 25oC 0.2 %
Load Regulation
AP1117-ADJ VIN = 3.3V, VADJ = 0, 0mA < IO < 1A,
TA = 25oC (Note 3, 4) 1 %
AP1117-1.5 VIN = 3V, 0mA < IO < 1A,
TA = 25oC (Note 3, 4) 12 15 mV
AP1117-1.8 VIN = 3.3V, 0mA < IO < 1A,
TA = 25oC (Note 3, 4) 15 18 mV
AP1117-2.5 VIN = 4V, 0mA < IO<1A,
TA = 25oC (Note 3, 4) 20 25 mV
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
AP1117
Document number: DS31009 Rev. 21 - 2 4 of 11
www.diodes.com September 2011
© Diodes Incorporated
Electrical Characteristics (Under Operating Conditions) (cont.)
Parameter Conditions Min Typ. Max Unit
Load Regulation
(cont.)
AP1117-3.3 VIN = 5V, 0 ≤ IOUT ≤ 1A,
TA = 25oC (Note 3, 4) 26 33 mV
AP1117-5.0 VIN = 8V, 0 ≤ IOUT ≤ 1A,
TA = 25oC (Note 3, 4) 40 50 mV
Dropout Voltage
(VIN-VOUT) AP1117-ADJ/1.5/1.8
/2.5/3.3/5.0 IOUT = 800mA, ΔVOUT = 1%VOUT
0oC ≤ TJ ≤ 125oC 1.2 1.3 V
Dropout Voltage
(VIN-VOUT) AP1117-ADJ/1.5/1.8
/2.5/3.3/5.0 IOUT = 1A, ΔVOUT = 1%VOUT
0oC ≤ TJ ≤ 125oC 1.3 1.4 V
Current Limit AP1117-ADJ/1.5/1.8
/2.5/3.3/5.0 (VIN-VOUT) = 5V 1. 1 A
Minimum Load Current
(Note 5) AP1117-XXX 0oC ≤ TJ ≤ 125oC 5 10 mA
Thermal Regulation TA = 25oC, 30ms pulse 0.008 0.04 %/W
Ripple Rejection F = 180Hz, COUT = 25uF Tantalum, IOUT = 1A
AP1117-XXX VIN = VOUT+3V 60 70 dB
Temperature Stability IO = 10mA 0.5 %
θJA Thermal Resistance
Junction-to-Ambient θJA
SOT89-3L: Control Circuitr y/Power Transistor (Note 6)
SOT223-3L: Control Circuitr y/Power Transistor (Note 7)
TO252-3L: Control Circuitry/Power Transistor (Note 6)
TO220-3L: Control Circuitry/Power Transistor (Note 6)
TO263-3L: Control Circuitry/Power Transistor (Note 6)
164
107
73
78
60
°C/W
θJC Thermal Resistance
Junction-to-Case
SOT89-3L: Control Circuitr y/Power Transistor (Note 6)
SOT223-3L: Control Circuitr y/Power Transistor (Note 7)
TO252-3L: Control Circuitry/Power Transistor (Note 6)
TO220-3L: Control Circuitry/Power Transistor (Note 6)
TO263-3L: Control Circuitry/Power Transistor (Note 6)
42
15
12
3.5
3.5
°C/W
Notes: 3.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.
4. 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.
5. Quiescent current is defined as the minimum output current required in maintaining regulation. At 12V input/output differential the
device is guaranteed to regulate if the output current is greater than 10mA.
6. Test conditions for SOT89-3L, TO220-3L, TO252-3L and TO263-3L: Devices mounted on FR-4 substrate, single sided PC board, 2oz copper, with
minimum recommended pad layout, no air flow. The case point of θJC is located on the thermal tab.
7. Test conditions for SOT223-3L: Devices mounted on FR-4 substrate, single sided PC board, 2oz copper, with 5mmx5mm thermal pad layout, no
air flow. The case point of θJC is located on the thermal tab.
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
AP1117
Document number: DS31009 Rev. 21 - 2 5 of 11
www.diodes.com September 2011
© Diodes Incorporated
Typical Performance Characteristics
0
2.0
0250 500 750 1000
OUTPUT CURRENT (mA)
Dr opout Voltage vs. Output Cu r r ent
1.8
1.6
1.4
1.2
1.0
0.8
0.2
0.4
0.6
D
R
O
P
O
U
T
V
O
L
T
A
G
E (V)
T = 25°C
J
T = 125°C
J
-40 0 25 50 75 100 125
I = 800mA
LOAD
TE MPERATURE ( °C)
Load Regul ation vs. Tem perature
0.20
0
-0.20
-0.40
-0.80
-1
O
UT
P
UT V
O
LT
A
G
E DEVI
A
TI
O
N (
%
)
-40 -25 0 25 50 75 100 125 150
2
TEMP ERATURE (°C)
Percent Change in Output V oltage vs. Temperature
1.5
1
0.5
0
-0.5
-1
-2
-1.5
O
U
T
P
U
T
V
O
L
T
A
G
E
C
H
AN
G
E
(
%
)
0.8
1
246 8 10 12
INPUT VOLTAGE (V)
Li ne R egulat ion
0.6
0.4
0.2
0
O
U
T
P
U
T
V
O
L
T
A
G
E
D
E
VIA
T
I
O
N (
%
)
7.5
0 20 40 60 80 100 120 140 160 180 200
C = 1µF
C = 10µF Tantalum
IN
OUT
TIME (µs)
Line Transient Response
6.5
5.5
40
20
0
-20
-40
O
UT
P
UT V
O
LTA
G
E DEVIAT I
O
N (mV)
INPUT VOLTAGE (V )
010
20 30 40 50 60 70 80 90 100
-1
0
1
2
-20
-10
0
10
20
30
C = 1µF
C = 10µF Tantalum
Preload = 100mA
IN
OUT
TIME (µs)
Load Transient Res ponse
L
O
A
D
C
U
R
R
ENT (
A
)
OUTPUT VOLTAGE DEVIA TION (mV)
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
AP1117
Document number: DS31009 Rev. 21 - 2 6 of 11
www.diodes.com September 2011
© Diodes Incorporated
Ordering Information
Lead Free
U : Tube
13 : Tape & Reel
L : Lead FreeBlank : Adj
G : Green
A P 1 1 1 7 XXX X -X
PackingVout
T : TO220-3L
Y : SOT89-3L
K : TO263-3L
D : TO252-3L
E : SOT223-3L 15 : 1.5V
18 : 1.8V
25 : 2.5V
33 : 3.3V
50 : 5.0V
Package
Device Package
Code Packaging
(Note 8)
Tube 13” Tape and Reel
Quantity Part Number
Suffix Quantity Part Number Suffix
AP1117DXXL-13 D TO252-3L NA NA 2500/Tape & Reel -13
AP1117DXXG-13 D TO252-3L NA NA 2500/Tape & Reel -13
AP1117EXXL-13 E SOT223-3L NA NA 2500/Tape & Reel -13
AP1117EXXG-13 E SOT223-3L NA NA 2500/Tape & Reel -13
AP1117KXXL-13 K TO263-3L NA NA 800/Tape & Reel -13
AP1117KXXG-13 K TO263-3L NA NA 800/Tape & Reel -13
AP1117TXXL-U T TO220-3L 50 -U NA NA
AP1117TXXG-U T TO220-3L 50 -U NA NA
AP1117YXXL-13 Y SOT89-3L NA NA 2500/Tape & Reel -13
AP1117YXXG-13 Y SOT89-3L NA NA 2500/Tape & Reel -13
Notes: 8. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
Marking Information
(1) SOT223-3L
Y W X
1 7-VV
Logo
X : Internal code
( Top View )
a~z : Lead Free
A~Z : Green
Part Number
1117 for ADJ
17-VV:15 for 1.5V
18 for 1.8V
25 for 2.5V
33 for 3.3V
50 for 5.0V
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week;
z repersents 52 and 53 week
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
AP1117
Document number: DS31009 Rev. 21 - 2 7 of 11
www.diodes.com September 2011
© Diodes Incorporated
Marking Information (cont.)
(2) TO252-3L
17-VV
X : In tern a l Co de
WW : Week : 01~52, 52 represents
YY : Year : 01 ~ 0 9
( Top View )
YY WW X X
Logo
Part Number
1117 for A D J
17-VV:15 for 1.5V
18 for 1.8V
25 for 2.5V
33 for 3.3V
50 for 5.0V
L : Lead Free
G : Green
52 and 53 week
(3) SOT89-3L
1 32
X X
Y W
XX : Identification code
( Top View )
X
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
X : Internal code
A~Z : Green
a~z : 27~52 week;
z represents 52 and 53 week
a~z : Lead Free
Marking Code Table
Identification Code Output Version
DA AP1117-ADJ
DB AP1117-1.5V
DC AP1117-1.8V
DD AP1117-2.5V
DE AP1117-3.3V
DF AP1117-5.0V
(4) TO263-3L
1117-VV
X : Internal code
YY : Year : 01~09
( Top View )
YY WW X XWW : Week : 01~52, 52 represents
Logo G : Green
Part Number
VV: 15 for 1.5V
18 for 1.8V
25 for 2.5V
33 for 3.3V
50 for 5.0V
Blank for AD J
52 and 53 week
L : Lead Free
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
AP1117
Document number: DS31009 Rev. 21 - 2 8 of 11
www.diodes.com September 2011
© Diodes Incorporated
Marking Information (cont.)
(5) TO220-3L ( Top View )
17 - VV
Logo
YY WWX X
Part Number
1117 for ADJ
17-VV : 15 for 1.5V
18 for 1.8V
25 for 2.5V
33 for 3.3V
50 for 5.0V X : Internal code
WW : Week : 01~52, 52 represents
YY : Year : 01~09
52 and 53 week
G : Green
L : Lead Free
Package Outline Dimensions (All Dimensions in mm)
(1) Package Type: SOT223-3L
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
AP1117
Document number: DS31009 Rev. 21 - 2 9 of 11
www.diodes.com September 2011
© Diodes Incorporated
Package Outline Dimensions (All Dimensions in mm) (cont.)
(2) Package Type: TO252-3L
5.20/5.50 Typ 5.35
6.45/6.70 Typ 6.58
2.28
BSC.
0.61 Typ
0.88/1.27
4.57 BSC. 9.00/10.40 Typ 9.70
SEATING
PLANE
SEE NOTE2
0.51
5.6
11.0
5.6
2.0
2.25
Land Pattern Recommendation (Uni t: mm)
7.2
1.2
2.18/2.40
Typ 2.29
0.45/0.58
Typ 0.52
0.64/1.02
Typ 0.83
0.45/0.58
Typ 0.52
0.89/
1.14
5.40/6.20
Typ 5.57
(3) Package Type: SOT89-3L
0.80/
1.20 2.35/2.60 Typ 2.48
1.40/1.75
Typ 1.60
2.90/3.10
Typ 3.00
1.40/1.60
Typ 1.50
4.40/4.60 Typ 4.50
0.41/0.53
Typ 0.47
0.36/0.48
Typ 0.42
80(2x)
1.7
0.4
0.9
2.7
1.3
1.9
50(2x)
Land Pattern Recommendation (Unit: mm)
1.5
0.36/0.48
Typ 0.42
1.45/1.55
Typ 1.50
0.35/0.43
Typ 0.39
3.94/4.25
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
AP1117
Document number: DS31009 Rev. 21 - 2 10 of 11
www.diodes.com September 2011
© Diodes Incorporated
Package Outline Dimensions (All Dimensions in mm) (cont.)
(4) Package Type: TO263-3L
9.65/10.29 Typ 9.97
2.54
BSC.
2.92
Typ 1.30
0.51/0.99 Typ 0.75
1.14/1 .40 Typ1.27
8.65/9.65 Typ 9.15
1.27/
1.78
Typ
1.52 14.61/15.88 Typ 15.24
4.06/4.83
Typ 4.45
1.14/1.40
Typ 1.27
2.28/2.80 Typ 2.54
1.3
3
15.7
10.9
9.1
Land Pattern Recom mendation (U nit: mm )
2.54
0.38 Typ
(5) Package Type: TO220-3L
3.55/4.85
Typ 4.20 0.51/1.40
Typ 0.95
0.31/1.14
Typ 0. 72
SEATING PLANE
14.20/16.50
Typ 15.35
9.70/10.70
Typ 10.20
12.72/14.72
Typ 13.72
0.51/1.14
Typ 0.83
4.83/5.33
Typ 5.08
1.14/1.78
Typ 1.46
Ø3.53/4.09
Typ 3.81
5.84/6.86
Typ 6.35
2.54/3.43
Typ 2.98
3.66/6.35
Typ 5.00
2.03/2.92
Typ2.48
2.99/2.79
Typ 2.54
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
AP1117
Document number: DS31009 Rev. 21 - 2 11 of 11
www.diodes.com September 2011
© Diodes Incorporated
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DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS
DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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in the labeling can be reasonably expected to result in significant injury to the user.
B. A critical componen t is any c omponent in a l ife support device or system whose failure t o perform can be reasonably expected
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