AP1115
0.6A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
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
SOT89-3L: Available in “Green” Molding Compound
(No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 1)
General 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.
Applications
•
•
PC Peripheral
Communication
Ordering Information
AP1115 X Y XX X - 13
Pin Version
A : Pin1 : V
OUT
2 : Adj(GND)
3 : V
IN
B : Pin1 : Adj(GND)
2 : V
IN
3 : V
OUT
Package
Y : SOT89-3L
Vout
Blank : ADJ
15 : 1.5V
18 : 1.8V
25 : 2.5V
28 : 2.8V
30 : 3.0V
33 : 3.3V
35 : 3.5V
50 : 5.0V
Lead Free
L : Lead Free
G : Green
Packing
13 : Tape & Reel
Device
Lead-free
AP1115XYXX-L-13
AP1115XYXX-G-13
Notes:
Package
Code
Y
Y
Packaging
(Note 2)
SOT89-3L
SOT89-3L
13” Tape and Reel
Quantity
Part Number Suffix
2500/Tape & Reel
-13
2500/Tape & Reel
-13
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.
2. 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.
AP1115 Rev. 7
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Diodes Incorporated
AP1115
0.6A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Pin Assignments
(1) AP1115A
(2) AP1115B
( Top View )
( Top View )
3
2
1
V
IN
Adj (GND)
V
OUT
Tab is V
IN
SOT89-3L
3
2
1
V
OUT
V
IN
Adj (GND)
Tab is Adj (GND)
SOT89-3L
Pin Descriptions
Pin Name
Adj
j
(GND)
V
OUT
I/O
I
O
Description
A resistor divider from this pin to the V
OUT
pin and ground sets the output voltage
(Ground only for Fixed-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
OUT
in order for the device to regulate properly.
V
IN
I
AP1115 Rev. 7
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Diodes Incorporated
AP1115
0.6A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Typical Circuit
5V
C1
100uF
V
IN
GND
V
OUT
3.3V/0.5A
C2
100uF
V
IN
Adj
V
OUT
R1
121
Ω
R2
121
Ω
5V
C1
100uF
V
O
2.5V/0.5A
C2
100uF
AP1115 A (5V/3.3V Fixed Output)
AP1115 A (5V/2.5V Adj Output)
5V
C1
100uF
V
OUT
V
IN
GND
3.3V/0.5A
C2
100uF
5V
C1
100uF
V
O
V
OUT
V
IN
Adj
R2
121
Ω
2.5V/0.5A
C2
R1
121
Ω
100 uF
AP1115 B (5V/3.3V Fixed Output)
AP1115B (5V/2.5V Adj Output)
Note : V
o
=
V
REF
x (1
+
R
2
)
R
1
Absolute Maximum Ratings
Symbol
V
IN
P
D
T
ST
T
MJ
Parameter
DC Supply Voltage
Power Dissipation
Storage Temperature
Maximum Junction Temperature
Rating
-0.3 to 18 V
Internally Limited
-65 to +150
150
Unit
V
mW
o
C
o
C
Recommended Operating Conditions
Symbol
T
OP
Parameter
Operating Junction Temperature Range
Min
0
Max
125
Unit
o
C
AP1115 Rev. 7
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Diodes Incorporated
AP1115
0.6A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Electrical Characteristics
Parameter
Reference Voltage
AP1115-ADJ
AP1115-1.5
AP1115-1.8
AP1115-2.5
AP1115-2.8
Output Voltage
AP1115-3.0
AP1115-3.3
AP1115-3.5
AP1115-5.0
Line Regulation
AP1115-XXX
AP1115-ADJ
AP1115-1.5
AP1115-1.8
AP1115-2.5
Load Regulation
AP1115-2.8
AP1115-3.0
AP1115-3.3
AP1115-3.5
AP1115-5.0
Dropout Voltage
(V
IN
-V
OUT
)
Current Limit
Minimum Load
Current (Note 5)
Thermal Regulation
Notes:
(Under Operating Conditions)
Conditions
T
A
= 25
o
C, (V
IN
-
OUT
) = 1.5V
I
O
= 10mA
o
I
OUT
= 10mA, T
A
= 25 C,
3V
≤
V
IN
≤
12V
o
I
OUT
= 10mA, T
A
= 25 C,
3.3V
≤
V
IN
≤
12V
o
I
OUT
= 10mA, T
A
= 25 C,
4V
≤
V
IN
≤
12V
o
I
OUT
= 10mA, T
A
= 25 C,
4.3V
≤
V
IN
≤
12V
I
OUT
= 10mA, T
A
= 25
o
C,
4.5V
≤
V
IN
≤
12V
I
OUT
= 10mA, T
A
= 25
o
C,
4.8V≤ V
IN
≤
12V
I
OUT
= 10mA, T
A
= 25
o
C,
5V
≤
V
IN
≤
12V
I
OUT
= 10mA, T
A
= 25
o
C,
6.5V
≤
V
IN
≤
12V
I
O
= 10mA, V
OUT
+ 1.5V < V
IN
< 15V,
o
T
A
= 25 C
V
IN
= 3.3V, V
adj
= 0,0mA < Io < 0.6A,
o
T
A
= 25 C (Note 3, 4)
V
IN
= 3V, 0mA < Io < 0.6A,
T
A
= 25
o
C (Note 3, 4)
V
IN
= 3.3V, 0mA < Io < 0.6A,
o
T
A
= 25 C (Note 3, 4)
V
IN
= 4V, 0mA < Io < 0.6A,
T
A
= 25
o
C (Note 3, 4)
V
IN
= 4.3V, 0mA < Io < 0.6A,
o
T
A
= 25 C (Note 3, 4)
V
IN
= 5V, 0
≤
I
OUT
≤
0.6A,
o
T
A
= 25 C (Note 3, 4)
V
IN
= 5V, 0
≤
I
OUT
≤
0.6A,
o
T
A
= 25 C (Note 3, 4)
V
IN
= 5V, 0
≤
I
OUT
≤
0.6A,
o
T
A
= 25 C (Note 3, 4)
V
IN
= 8V, 0
≤
I
OUT
≤
0.6A,
o
T
A
= 25 C (Note 3, 4)
Min
1.225
1.470
1.764
2.450
2.744
2.940
3.235
3.430
4.900
-
-
-
-
-
-
-
-
-
-
-
0.7
-
-
Typ.
1.250
1.500
1.800
2.500
2.800
3.000
3.300
3.500
5.000
-
-
12
15
20
22
23
26
28
40
1.1
-
5
0.008
Max
1.275
1.530
1.836
2.550
2.856
3.060
3.365
3.570
5.100
0.2
1
15
18
25
28
30
33
35
50
1.3
-
10
0.04
Unit
V
V
V
V
V
V
V
V
V
%
%
mV
mV
mV
mV
mV
mV
mV
mV
V
A
mA
%/W
AP1115-ADJ/1.5/1.8
= 0.6A,
ΔV
OUT
= 1%V
OUT
I
2.5/2.8/3.0/3.3/3.5/5.0
OUT
AP1115-ADJ/1.5/1.8
(V
IN
-V
OUT
) = 5V
2.5/2.8/3.0/3.3/3.5/5.0
AP1115-XXX
T
A
= 25
o
C, 30ms pulse
0
o
C
≤
T
J
≤
125
o
C
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 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.
5. 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.
AP1115 Rev. 7
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Diodes Incorporated
AP1115
0.6A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Electrical Characteristics
Parameter
Ripple Rejection
Temperature Stability
(Continued) (Under Operating Conditions)
θ
JA
θ
JC
Notes:
Conditions
f = 120Hz,C
OUT
= 25uF Tantalum, I
OUT
= 0.6A
AP1115-XXX
V
IN
= V
OUT
+3V
I
O
= 10mA
Thermal Resistance Junction-to-Ambient
(No heat sink; No air flow) (Note 6)
Thermal Resistance Junction-to-Case
Control Circuitry/Power Transistor (Note 6)
Min
-
-
-
-
Typ.
60
0.6
164
35
Max
70
-
-
-
Unit
dB
%
o
C/W
C/W
o
6. Test conditions for SOT89-3L: Device mounted on FR-4 substrate, 2oz copper, with minimum recommended pad layout.
AP1115 Rev. 7
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Diodes Incorporated
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