AP1115
Document number: DS31025 Rev. 11 - 2 1 of 8
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© Diodes Incorporated
A
P1115
0.6A LOW DROPOUT POSITIVE ADJUSTABLE
OR FIXED-MODE REGULATOR
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 dropou t at full load current making it ideal to
provide well regulated outputs of 1.25V to 5V with up to 18V input
supply.
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
Pin Assignments
AP1115A
AP1115B
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.
AP1115
Document number: DS31025 Rev. 11 - 2 2 of 8
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© Diodes Incorporated
A
P1115
Typical Applications Circuit
C2
100uF
5V
3.3V/0.5A
VIN
VOUT
GND
C1
100uF
AP1115A (5V/3.3V Fixed Output)
)
1
2
REFoR
R
(1
VV
Note:
GND
AP1115B (5V/3.3V Fixed Output)
5V C1
100uF
C2
100uF
3.3V/0.5A
R1
121 R2
121
C2
100uF
5V
2.5V/0.5A
Adj
C1
100uF
VO
AP1115A (5V/2.5V Adj Output)
R2
121
R1
121 C2
100uF
5V
2.5V/0.5A
Adj
C1
100uF
VO
AP1115B (5V/2.5V Adj Output)
Ω
Ω
Ω
Ω
=+
VIN
VOUT
VOUT
VIN
VOUT
VIN
x
Pin Descriptions
Pin Name I/O Function
Adj (GND) I A resistor divider from this pin to the VOUT pin and ground sets the output voltage ( Ground only for Fixed-
Mode).
VOUT O
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
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 VOUT in order for the device to regulate properly.
AP1115
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P1115
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.)
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 (@TA = +25°C, unless otherwise specified.)
Parameter Conditions Min Typ Max Unit
Reference Voltage AP1115-ADJ TA = +25°C, (VIN - OUT) = 1.5V, IO = 10mA 1.225 1.250 1.275 V
Output Voltage
AP1115-1.5 IOUT = 10mA, TA = +25°C, 3V ≤ VIN ≤ 12V 1.470 1.500 1.530 V
AP1115-1.8 IOUT = 10mA, TA = +25°C, 3.3V ≤ VIN ≤ 12V 1.764 1.800 1.836 V
AP1115-2.5 IOUT = 10mA, TA = +25°C, 4V ≤ VIN ≤ 12V 2.450 2.500 2.550 V
AP1115-2.8 IOUT = 10mA, TA = +25°C, 4.3V ≤ VIN ≤ 12V 2.744 2.800 2.856 V
AP1115-3.0 IOUT = 10mA, TA = +25°C, 4.5V ≤ VIN ≤ 12V 2.940 3.000 3.060 V
AP1115-3.3 IOUT = 10mA, TA = +25°C, 4.8V≤ VIN ≤ 12V 3.235 3.300 3.365 V
AP1115-3.5 IOUT = 10mA, TA = +25°C, 5V ≤ VIN ≤ 12V 3.430 3.500 3.570 V
AP1115-5.0 IOUT = 10mA, TA = +25°C, 6.5V ≤ VIN ≤ 12V 4.900 5.000 5.100 V
Line Regulation AP1115-XXX IO = 10mA, VOUT + 1.5V < VIN < 15V, TA = +25°C — — 0.2 %
Load Regulation
AP1115-ADJ VIN = 3.3V, VADJ = 0,0mA < Io < 0.6A,
TA = +25°C (Notes 4 & 5) — — 1 %
AP1115-1.5 VIN = 3V, 0mA < Io < 0.6A,TA = +25°C
(Notes 4 & 5) — 12 15 mV
AP1115-1.8 VIN = 3.3V, 0mA < Io < 0.6A, TA = +25°C
(Notes 4 & 5) — 15 18 mV
AP1115-2.5 VIN = 4V, 0mA < Io < 0.6A, TA = +25°C
(Notes 4 & 5) — 20 25 mV
AP1115-2.8 VIN = 4.3V, 0mA < Io < 0.6A, TA = +25°C
(Notes 4 & 5) — 22 28 mV
AP1115-3.0 VIN = 5V, 0
≤
IOUT
≤
0.6A, TA = +25°C
(Notes 4 & 5) — 23 30 mV
AP1115-3.3 VIN = 5V, 0
≤
IOUT
≤
0.6A, TA = +25°C
(Notes 4 & 5) — 26 33 mV
AP1115-3.5 VIN = 5V, 0
≤
IOUT
≤
0.6A, TA = +25°C
(Notes 4 & 5) — 28 35 mV
AP1115-5.0 VIN = 8V, 0
≤
IOUT
≤
0.6A, TA = +25°C
(Notes 4 & 5) — 40 50 mV
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
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P1115
Electrical Characteristics (cont.) (@TA = +25°C, unless otherwise specified.)
Parameter Conditions Min Typ Max Unit
Dropout Voltage (VIN-VOUT) AP1115-ADJ/1.5/1.8
2.5/2.8/3.0/3.3/3.5/5.0 IOUT = 0.6A, ΔVOUT = 1%VOUT — 1.1 1.3 V
Current Limit AP1115-ADJ/1.5/1.8
2.5/2.8/3.0/3.3/3.5/5.0 (VIN -VOUT) = 5V 0.7 — — A
Minimum Load Current
(Note 6) AP1115-XXX 0°C ≤ TJ ≤ +125°C — 5 10 mA
Thermal Regulation TA = +25°C, 30ms pulse — 0.008 0.04 %/W
Ripple Rejection f = 120Hz,COUT = 25µF Tantalum, IOUT = 0.6A
AP1115-XXX VIN = VOUT +3V — 60 70 dB
Temperature Stability IO = 10mA — 0.6 — %
θJA Thermal Resistance Junction-to-Ambient
(No heat sink; No air flow) (Note 7) — 164 — °C/W
θJC Thermal Resistance Junction-to-Case
Control Circuitry/Power Transistor (Note 7) — 35 — °C/W
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.
AP1115
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P1115
Typical Performance Characteristics
Temperature (
o
C)
Percent Change in Output Voltage vs Temperature
Output Voltage Change (%)
-50 -25 0 25 50 75 100 125 150
- 2
-1.5
- 1
-0.5
0
0. 5
1
1.5
2
Input Voltage (V)
Line Regulation
Output Voltage Deviation (%)
0
0.2
0.4
0.6
0.8
1
24
6 8 10 12
TIME (us)
Line Transient Response
Output Voltage Deviation (mV) Input Voltage (V)
-40
-20
0
20
40
5.5
6.5
7.5 Cin=1uF
Cout=10uF Tantalum
0 20 40 60 80 100 120 140 160 180 200
TIME (us)
Load Transient Response
Load Current (A) Output Voltage Deviation (mV)
010
20 30 40 50 60 70 80 90 100
-1
0
1
2
-20
-10
0
10
20
30 C in = 1uF
C out = 10 uF Tantalum
Preload = 100mA
Output Current (mA)
Dropout Voltage vs Output Current
Dropout Voltage (V)
0
0. 2
0. 4
0. 6
0. 8
1. 0
1. 2
1. 4
1. 6
1. 8
2. 0
0100 200 300 400
Tj = 125
o
C
Tj = 25
o
C
Temperature (
o
C)
Load Regulation vs Temperature
Output Voltage Deviation (%)
-25 0 25 50 75 100 125
- 1
-0.80
-0.40
-0.20
0
0.20
I load=600mA
500 600
AP1115
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P1115
Ordering Information
Device Package Code
Packaging
(Note 8) 13” Tape a nd Reel (Note 9)
Quantity Part Number Suffix
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
Marking Information
SOT89-3
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
Output Version Identification Code
A
P1115
A
A
P1115B
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
Pb
Lead-Free
Pb
Lead-Free
AP1115
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P1115
Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
SOT89-3
Dim Min Max
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
Dimensions Value (in mm)
X 0.900
X1 1.733
X2 0.416
Y 1.300
Y1 4.600
Y2 1.475
Y3 0.950
Y4 1.125
C 1.500
EH
D1
B1 B
e
C
L
A
D
8° (4X)
H
1
R0.200
Y1
X1
Y2
Y
C
X (3 x)
Y3 Y4
X2 (2x)
AP1115
Document number: DS31025 Rev. 11 - 2 8 of 8
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© Diodes Incorporated
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P1115
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