A
Description
AP1115 is a low dropout positive adjustable or fixed mode regulator
with 0.6A 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. AP1115
is also well suited for other applications such as VGA cards. AP1115 is
guaranteed to have <1.3V dropout at full load current making it ideal to
provide well regulated outputs of 1.25V to 5V with up to 18V input
supply.
P1115
0.6A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
Pin Assignments
AP1115A
Features
• 1.3V 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 / 2.8V/ 3.0V /
3.3V / 3.5V / 5.0V
• Lead Free Package: SOT89-3L
Totally Lead-Free; RoHS Compliant (Notes 1 & 2)
• SOT89-3L: Available in “Green” Molding Compound
(No Br, Sb)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
• PC Peripheral
• Communication
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 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.
AP1115B
AP1115
Document number: DS31025 Rev. 11 - 2
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Typical Applications Circuit
5V
C1
100uF
5V
C1
100uF
P1115
VIN
GND
VOUT
C2
100uF
AP1115A (5V/3.3V Fixed Output)
5V
C1
100uF
VOUT
C2
VIN
GND
100uF
AP1115B (5V/3.3V Fixed Output)
3.3V/0.5A
3.3V/0.5A
VIN
Adj
VOUT
R1
121R2121
Ω
Ω
C2
100uF
AP1115A (5V/2.5V Adj Output)
5V
VOUT
VIN
Adj
C1
100uF
R1
121
R2
121
Ω
Ω
C2
100uF
AP1115B (5V/2.5V Adj Output)
V
O
2.5V/0.5A
V
O
2.5V/0.5A
Note:
=
x
VV
(1
REFo
Pin Descriptions
Pin Name I/O Function
Adj (GND) I
V
O
OUT
VIN I
A resistor divider from this pin to the V
Mode).
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.
The input pin of regulator. Typically a large storage capacitor (0.15Ω ≤ ESR ≤ 20Ω) 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 1.3V higher than V
AP1115
Document number: DS31025 Rev. 11 - 2
www.diodes.com
pin and ground sets the output voltage (Ground only for Fixed-
OUT
2 of 8
R
2
+
)
R
1
in order for the device to regulate properly.
OUT
August 2012
© Diodes Incorporated
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P1115
Absolute Maximum Ratings (@T
= +25°C, unless otherwise specified.)
A
Symbol Parameter Rating Unit
VIN DC Supply Voltage -0.3 to +18 V
PD Power Dissipation Internally Limited mW
TST Storage Temperature -65 to +150 °C
TMJ Maximum Junction Temperature +150 °C
Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only; functional
operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure to
absolute maximum rating conditions for extended periods of time.
Recommended Operating Conditions
Symbol Parameter Min Max Unit
TOP Operating Junction Temperature Range 0 +125 °C
Electrical Characteristics (@T
Parameter Conditions Min Typ Max Unit
Reference Voltage AP1115-ADJ
AP1115-1.5
AP1115-1.8
AP1115-2.5
Output Voltage
Line Regulation AP1115-XXX
Load Regulation
Notes: 4. 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.
5. Line and load regulation are guaranteed up to the maximum power dissipation of 5W. Power dissipation is determined by the input/output differential
and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range.
AP1115-2.8
AP1115-3.0
AP1115-3.3
AP1115-3.5
AP1115-5.0
AP1115-ADJ
AP1115-1.5
AP1115-1.8
AP1115-2.5
AP1115-2.8
AP1115-3.0
AP1115-3.3
AP1115-3.5
AP1115-5.0
= +25°C, unless otherwise specified.)
A
T
= +25°C, (V
A
I
= 10mA, TA = +25°C, 3V ≤ V
OUT
= 10mA, TA = +25°C, 3.3V ≤ V
I
OUT
= 10mA, TA = +25°C, 4V ≤ V
I
OUT
I
= 10mA, TA = +25°C, 4.3V ≤ V
OUT
= 10mA, TA = +25°C, 4.5V ≤ V
I
OUT
= 10mA, TA = +25°C, 4.8V≤ V
I
OUT
I
= 10mA, TA = +25°C, 5V ≤ VIN ≤ 12V
OUT
= 10mA, TA = +25°C, 6.5V ≤ VIN ≤ 12V
I
OUT
I
= 10mA, V
O
= 3.3V, V
V
IN
T
= +25°C (Notes 4 & 5)
A
= 3V, 0mA < Io < 0.6A,TA = +25°C
V
IN
) = 1.5V, IO = 10mA
IN - OUT
+ 1.5V < V
OUT
= 0,0mA < Io < 0.6A,
ADJ
< 15V, TA = +25°C
IN
≤ 12V
IN
IN
≤ 12V
IN
IN
IN
IN
≤ 12V
≤ 12V
≤ 12V
≤ 12V
(Notes 4 & 5)
= 3.3V, 0mA < Io < 0.6A, TA = +25°C
V
IN
(Notes 4 & 5)
= 4V, 0mA < Io < 0.6A, TA = +25°C
V
IN
(Notes 4 & 5)
= 4.3V, 0mA < Io < 0.6A, TA = +25°C
V
IN
(Notes 4 & 5)
= 5V, 0 ≤ I
V
IN
≤ 0.6A, TA = +25°C
OUT
(Notes 4 & 5)
= 5V, 0 ≤ I
V
IN
≤ 0.6A, TA = +25°C
OUT
(Notes 4 & 5)
V
= 5V, 0 ≤ IOUT ≤ 0.6A, TA = +25°C
IN
(Notes 4 & 5)
= 8V, 0 ≤ IOUT ≤ 0.6A, TA = +25°C
V
IN
(Notes 4 & 5)
1.225 1.250 1.275 V
1.470 1.500 1.530 V
1.764 1.800 1.836 V
2.450 2.500 2.550 V
2.744 2.800 2.856 V
2.940 3.000 3.060 V
3.235 3.300 3.365 V
3.430 3.500 3.570 V
4.900 5.000 5.100 V
— — 0.2 %
— — 1 %
— 12 15 mV
— 15 18 mV
— 20 25 mV
— 22 28 mV
— 23 30 mV
— 26 33 mV
— 28 35 mV
— 40 50 mV
AP1115
Document number: DS31025 Rev. 11 - 2
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P1115
Electrical Characteristics (cont.) (@T
= +25°C, unless otherwise specified.)
A
Parameter Conditions Min Typ Max Unit
Dropout Voltage (VIN-V
Current Limit
Minimum Load Current
(Note 6)
AP1115-ADJ/1.5/1.8
)
OUT
2.5/2.8/3.0/3.3/3.5/5.0
AP1115-ADJ/1.5/1.8
2.5/2.8/3.0/3.3/3.5/5.0
AP1115-XXX 0°C ≤ T
I
= 0.6A, ΔV
OUT
(V
) = 5V 0.7 — — A
IN -VOUT
≤ +125°C — 5 10 mA
J
OUT
= 1%V
OUT
—
1.1 1.3 V
Thermal Regulation TA = +25°C, 30ms pulse — 0.008 0.04 %/W
Ripple Rejection
f = 120Hz,C
AP1115-XXX V
Temperature Stability IO = 10mA — 0.6
θ
JA
θ
JC
Notes: 6. Quiescent current is defined as the minimum output current required to maintain regulation. At 12V input/output differential the device is guaranteed to
regulate if the output current is greater than 10mA.
7. Test conditions for SOT89-3L: Device mounted on FR-4 substrate, 2oz copper, with minimum recommended pad layout.
Thermal Resistance Junction-to-Ambient
(No heat sink; No air flow) (Note 7)
Thermal Resistance Junction-to-Case
Control Circuitry/Power Transistor (Note 7)
= 25µF Tantalum, I
OUT
= 0.6A
OUT
= V
IN
+3V — 60 70 dB
OUT
—
— 164
— 35
—
—
%
°C/W
°C/W
AP1115
Document number: DS31025 Rev. 11 - 2
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Typical Performance Characteristics
2. 0
1. 8
1. 6
1. 4
1. 2
1. 0
0. 8
0. 6
Dropout Voltage (V)
0. 4
0. 2
0
100
0
Dropout Voltage vs Output Current
Tj = 25 oC
Tj = 125 oC
200 300 400
Output Current (mA)
500 600
P1115
0.20
0
I load=600mA
-0.20
-0.40
-0.80
Output Voltage Deviation (%)
- 1
-25 0
Load Regulation vs Temperature
25 50 75 100 125
Temperature (oC)
2
1.5
1
0. 5
0
-0.5
- 1
-1.5
Output Voltage Change (%)
- 2
-50 -25 0 25 50 75 100 125 150
Temperature (oC)
Percent Change in Output Voltage vs Temperature
7.5
Cin=1uF
Cout=10uF Tantalum
6.5
5.5
40
20
1
0.8
0.6
0.4
0.2
Output Voltage Deviation (%)
0
24
30
C in = 1uF
20
C out = 10 uF Tantalum
Preload = 100mA
10
0
-10
-20
6 8 10 12
Input Voltage (V)
Line Regulation
0
-20
-40
0 20 40 60 80 100 120 140 160 180 200
Output Voltage Deviation (mV) Input Voltage (V)
TIME (us)
Line Transient Response
AP1115
Document number: DS31025 Rev. 11 - 2
Output Voltage Deviation (mV)
2
1
0
-1
010
Load Current (A)
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20 30 40 50 60 70 80 90 100
TIME (us)
Load Transient Response
© Diodes Incorporated
August 2012
A
A
A
A
Ordering Information
Device Package Code
Pb
Lead-Free
Pb
Lead-Free
AP1115XYXXL-13 Y SOT89-3 2500/Tape & Reel -13
AP1115XYXXG-13 Y SOT89-3 2500/Tape & Reel -13
AP1115XYXXL-13R Y SOT89-3 4000/Tape & Reel -13R
AP1115XYXXG-13R Y SOT89-3 4000/Tape & Reel -13R
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.
9. Find Surface Mount (SMD) Packaging and Reel and Carrier Tape specification in document AP02007.pdf
http://www.diodes.com/datasheets/ap02007.pdf
Packaging
(Note 8)
Quantity Part Number Suffix
13” Tape and Reel (Note 9)
Marking Information
SOT89-3
( Top View )
P1115
AP1115
Document number: DS31025 Rev. 11 - 2
XX : Identification code
X X
Y W
W
X
Y : Year : 0~9
: Week : A~Z : 1~26 week;
a~z : 27~52 week;
z represents 52 and 53 week
: Internal code
1 32
Output Version
ADJ JO JU
1.5V JP JV
1.8V JQ JW
2.5V JR JX
2.8V JC JD
3.0V JM JN
3.3V JS JY
3.5V JK JL
5.0V JT JZ
X
a~z : Lead Free
A~Z : Green
Identification Code
P1115
P1115B
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Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
D1
E
B1
e
8° (4X)
D
0
0
2
.
0
R
1
H
L
B
A
C
H
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
Y3
Y
X (3x)
X1
X2 (2x)
Y2
Dimensions Value (in mm)
X 0.900
X1 1.733
Y1
Y4
X2 0.416
Y 1.300
Y1 4.600
Y2 1.475
Y3 0.950
C
Y4 1.125
C 1.500
AP1115
Document number: DS31025 Rev. 11 - 2
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Dim Min Max
SOT89-3
A 1.40 1.60
B 0.44 0.62
B1 0.35 0.54
C 0.35 0.44
D 4.40 4.60
D1 1.62 1.83
E 2.29 2.60
e 1.50 Typ
H 3.94 4.25
H1 2.63 2.93
L 0.89 1.20
All Dimensions in mm
P1115
August 2012
© Diodes Incorporated
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P1115
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 PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorize d application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2012, Diodes Incorporated
www.diodes.com
IMPORTANT NOTICE
LIFE SUPPORT
AP1115
Document number: DS31025 Rev. 11 - 2
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