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
Package: SOT89-3L
Lead Free Finish/RoHS Compliant for Lead Free
products (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
AP 1115 X X XX X X
Pin Version
Package
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
Packing
Y : SOT89-3L
A: Pin1:Vout
2:Adj(GND)
3:Vin
B: Pin1:Adj(GND)
2:Vin
3:Vout
L : Lead Free Package
-13 : Taping
Note:
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see
EU Directive Annex Notes 5 and 7.
Device
Ammo Box
Bulk
Package Packaging
Part
Part
Part
Code
(Note 2)
Quantity Quantity Number Number Quantity Number
Suffix
Suffix
Suffix
Y
SOT89-3L
2500/Tape &
Reel
-13
NA
NA
NA
NA
13” Tape and Reel
AP1115XY
Note:
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. 1
1 of 7
www.diodes.com
NOVEMBER 2006
©
Diodes Incorporated
AP1115
0.6A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Connection Diagram
(Top View)
AP1115A-3 PIN SOT89-3L
3
2
1
Tab is Pin 2
AP1115B-3 PIN SOT89-3L
3
2
1
Tab is Pin 2
V
in
Adj (GND)
V
out
V
out
V
in
Adj (GND)
Pin Descriptions
NAME
A
dj
(GND)
V
out
V
in
I/O
I
O
I
FUNCTION
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.
AP1115 Rev. 1
2 of 7
www.diodes.com
NOVEMBER 2006
©
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
5V
C1
100uF
R1
121
Ω
R2
121
Ω
V
O
2.5V/0.5A
C2
100uF
AP1115A (5V/3.3V Fixed Output)
AP1115A (5V/2.5V Adj Output)
5V
5V
C1
100uF
V
out
V
in
GND
3.3V/0.5A
C2
100uF
V
out
V
in
Adj
C1
100uF
V
O
2.5V/0.5A
C2
R1
100uF
121
Ω
R2
121
Ω
AP1115B (5V/3.3V Fixed Output)
AP1115B (5V/2.5V Adj Output)
Note: V
o
=
V
REF
∗
(1
+
R
2
)
R
1
Absolute Maximum Ratings
Symbol
V
IN
P
D
T
ST
T
OP
Parameter
DC Supply Voltage
Power Dissipation
Storage Temperature
Operating Junction Temperature Range
Rating
-0.3 to 18 V
Internally Limited
-65 to +150
0 to +150
Unit
V
o
o
C
C
AP1115 Rev. 1
3 of 7
www.diodes.com
NOVEMBER 2006
©
Diodes Incorporated
AP1115
0.6A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Electrical Characteristics
(Under Operating Conditions)
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
Note:
CONDITIONS
o
T
A
= 25 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
o
I
OUT
= 10mA, T
A
= 25 C,
4.5V
≤
V
IN
≤
12V
o
I
OUT
= 10mA, T
A
= 25 C,
4.8V≤ V
IN
≤
12V
o
I
OUT
= 10mA, T
A
= 25 C,
5V
≤
V
IN
≤
12V
o
I
OUT
= 10mA, T
A
= 25 C,
6.5V
≤
V
IN
≤
12V
I
O
= 10mA, V
OUT
+ 1.5V < V
IN
<
15V, T
A
= 25
o
C
V
IN
= 3.3V, V
adj
= 0,0mA < Io <
0.6A, T
A
= 25
o
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,
o
T
A
= 25 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,
T
A
= 25
o
C (Note 3, 4)
V
IN
= 5V, 0
≤
I
OUT
≤
0.6A,
T
A
= 25
o
C (Note 3, 4)
V
IN
= 5V, 0
≤
I
OUT
≤
0.6A,
T
A
= 25
o
C (Note 3, 4)
V
IN
= 8V, 0
≤
I
OUT
≤
0.6A,
o
T
A
= 25 C (Note 3, 4)
I
OUT
= 0.6A,
∆V
OUT
= 0.1%V
OUT
(V
IN
-V
OUT
) = 5V
0
o
C
≤
T
j
≤
125
o
C
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
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
T
A
= 25
o
C, 30ms pulse
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. 1
4 of 7
www.diodes.com
NOVEMBER 2006
©
Diodes Incorporated
AP1115
0.6A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Electrical Characteristics
(Continued) (Under Operating Conditions)
PARAMETER
Ripple Rejection
Temperature Stability
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
SOT89-3L
(No heat sink; No air flow)
SOT89-3L: Control Circuitry/Power Transistor
Thermal Resistance Junction-to-Case
MIN.
-
-
-
-
TYP.
60
0.6
300
100
MAX.
70
-
-
-
o
UNIT
dB
%
C/W
C/W
θ
JA
θ
JC
o
Marking Information
Identification Code
Output
version
Part Number
AP1115A
AP1115B
JO
JU
JP
JV
JQ
JW
JR
JX
JC
JD
JM
JN
JS
JY
JK
JL
JT
JZ
Date Code
Month: A~L
Year: 0~9
XX
XX X
1
2
3
Identification Code
L: Lead Free Package
SOT89-3L
ADJ
1.5V
1.8V
2.5V
2.8V
3.0V
3.3V
3.5V
5.0V
AP1115 Rev. 1
5 of 7
www.diodes.com
NOVEMBER 2006
©
Diodes Incorporated
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