AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Features
•
•
•
•
•
•
•
•
•
1.4V 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, 3.3V,
5.0V
Lead Free Packages: SOT223-3L, TO252-3L,
SOT89-3L, TO263-3L and TO220-3L
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)
General Description
AP1117 is a low dropout positive adjustable or fixed-mode
regulator with 1A output current capability. The product is voltage
specifically designed to provide well-regulated supply for low
IC applications such as high-speed bus termination and low
current 3.3V logic supply. 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.
Applications
•
•
PC Peripheral
Communication
Typical Application Circuit
5V
C1
10uF
V
IN
V
OUT
GND
Tab is V
OUT
C2
22uF
3.3V/1A
V
IN
V
OUT
Adj
Tab is V
OUT
R1
121
Ω
R2
121
Ω
V
o
2.5V/1A
5V
C1
10uF
C2
22uF
( 5V/3.3V fixed output )
( 5V/2.5V ADJ output )
Note:
V
o
=
V
REF
×
(1
+
R
2
)
R
1
AP1117 Rev. 19
DS31009
1 of 12
www.diodes.com
JANUARY 2010
©
Diodes Incorporated
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Ordering Information
A P 1 1 1 7 X XX X - X
Package
D : TO252-3L
E : SOT223-3L
K : TO263-3L
T : TO220-3L
Y : SOT89-3L
Vout
Blank : Adj
15 : 1.5V
18 : 1.8V
25 : 2.5V
33 : 3.3V
50 : 5.0V
Packaging
(Note 2)
TO252-3L
TO252-3L
SOT223-3L
SOT223-3L
TO263-3L
TO263-3L
TO220-3L
TO220-3L
SOT89-3L
SOT89-3L
Lead Free
L : Lead Free
G : Green
Packing
U : Tube
13 : Tape & Reel
Device
AP1117DXXL-13
AP1117DXXG-13
AP1117EXXL-13
AP1117EXXG-13
AP1117KXXL-13
AP1117KXXG-13
AP1117TXXL-U
AP1117TXXG-U
AP1117YXXL-13
AP1117YXXG-13
Notes:
Package
Code
D
D
E
E
K
K
T
T
Y
Y
Tube
Part Number
Quantity
Suffix
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
50
-U
50
-U
NA
NA
NA
NA
13” Tape and Reel
Part Number
Quantity
Suffix
2500/Tape & Reel
-13
2500/Tape & Reel
-13
2500/Tape & Reel
-13
2500/Tape & Reel
-13
800/Tape & Reel
-13
800/Tape & Reel
-13
NA
NA
NA
NA
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.
AP1117 Rev. 19
DS31009
2 of 12
www.diodes.com
JANUARY 2010
©
Diodes Incorporated
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Pin Assignments
(1) SOT89-3L
(2) SOT223-3L
( Top View )
3
2
1
Tab is V
OUT
(3) TO220-3L
( Top View )
V
IN
V
OUT
Adj (GND)
3
2
1
Tab is V
OUT
(4) TO252-3L and TO263-3L
( Top View )
V
IN
V
OUT
Adj (GND)
( Front View )
3
V
IN
3
2
1
Tab is V
OUT
V
IN
V
OUT
Adj (GND)
2
V
OUT
1
Tab is V
OUT
Adj (GND)
Pin Descriptions
Pin Name
Adj (GND)
V
OUT
I/O
I
O
PIN #
1
2
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 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
3
AP1117 Rev. 19
DS31009
3 of 12
www.diodes.com
JANUARY 2010
©
Diodes Incorporated
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Block Diagram
V
IN
3
2
V
OUT
+
+
1.25V
CURRENT
LIMIT
+
1
Thermal
Shutdown
Absolute Maximum Ratings
Symbol
V
IN
T
MJ
Parameter
DC Supply Voltage
Maximum Junction Temperature
Power Dissipation
SOT89-3L
SOT223-3L
TO220-3L
TO252-3L
TO263-3L
Storage Temperature
Rating
-0.3 to 18
150
Unit
V
oC
P
D
Internally limited by maximum
junction temperature
of 150 oC (Note 3)
-
T
ST
Notes:
3. 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
T
OP
Parameter
Operating Junction Temperature Range
Min
0
Max
125
Unit
oC
AP1117 Rev. 19
DS31009
4 of 12
www.diodes.com
-
+
GND
(FIXED)
1
Adj
mW
-65 to +150
oC
JANUARY 2010
©
Diodes Incorporated
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Electrical Characteristics
Parameter
Reference Voltage
AP1117-ADJ
AP1117-1.5
AP1117-1.8
Output Voltage
AP1117-2.5
AP1117-3.3
AP1117-5.0
Line Regulation
AP1117-XXX
AP1117-ADJ
AP1117-1.5
AP1117-1.8
Load Regulation
AP1117-2.5
AP1117-3.3
AP1117-5.0
Dropout Voltage
(V
IN
-V
OUT
)
Current Limit
Minimum Load Current
(Note 6)
Thermal Regulation
Ripple Rejection
Temperature Stability
(Under Operating Conditions)
Conditions
T
A
= 25 C, (V
IN
-
OUT
) = 1.5V
I
O
= 10mA
o
I
OUT
= 10mA, T
A
= 25 C,
3V≦V
IN
≦12V
I
OUT
= 10mA, T
A
= 25 C,
3.3V≦V
IN
≦12V
I
OUT
= 10mA, T
A
= 25 C,
4V≦V
IN
≦12V
I
OUT
= 10mA, T
A
= 25 C,
4.8V≦V
IN
≦12V
I
OUT
= 10mA, T
A
= 25 C,
6.5V≦V
IN
≦12V
I
O
= 10mA,V
OUT
+1.5V<V
IN
<12V,
o
T
A
= 25 C
V
IN
=3.3V,Vadj=0,0mA<Io<1A,
o
T
A
= 25 C (Note 4, 5)
V
IN
= 3V, 0mA<Io<1A,
o
T
A
= 25 C (Note 4, 5)
V
IN
= 3.3V, 0mA<Io<1A,
o
T
A
= 25 C (Note 4, 5)
V
IN
= 4V, 0mA<Io<1A,
o
T
A
= 25 C (Note 4, 5)
V
IN
= 5V, 0≦I
OUT
≦1A,
o
T
A
= 25 C (Note 4, 5)
V
IN
= 8V, 0≦I
OUT
≦1A,
o
T
A
= 25 C (Note 4, 5)
I
OUT
= 1A,
ΔV
OUT
= 1%V
OUT
(V
IN
-V
OUT
) = 5V
0 C≦T
J
≦125
C
o
o
o
o
o
o
o
Min
1.225
1.470
1.764
2.450
3.235
4.900
Typ.
1.250
1.500
1.800
2.500
3.300
5.000
Max
1.275
1.530
1.836
2.550
3.365
5.100
0.2
1
Unit
V
V
V
V
V
V
%
%
mV
mV
mV
mV
mV
V
A
12
15
20
26
40
1.3
1. 1
5
0.008
60
0.5
164
107
73
78
60
42
15
12
3.5
3.5
15
18
25
33
50
1.4
AP1117-ADJ/1.5/1.8
/2.5/3.3/5.0
AP1117-ADJ/1.5/1.8
/2.5/3.3/5.0
AP1117-XXX
o
10
0.04
70
mA
%/W
dB
%
θ
JA
Thermal Resistance
Junction-to-Ambient
θ
JC
Thermal Resistance
Junction-to-Case
Notes:
T
A
= 25 C, 30ms pulse
F = 180Hz, C
OUT
= 25uF Tantalum, I
OUT
= 1A
AP1117-XXX
V
IN
= V
OUT
+3V
I
O
= 10mA
SOT89-3L: Control Circuitry/Power Transistor (Note 7)
SOT223-3L: Control Circuitry/Power Transistor (Note 8)
TO252-3L: Control Circuitry/Power Transistor (Note 7)
TO220-3L: Control Circuitry/Power Transistor (Note 7)
TO263-3L: Control Circuitry/Power Transistor (Note 7)
SOT89-3L: Control Circuitry/Power Transistor (Note 7)
SOT223-3L: Control Circuitry/Power Transistor (Note 8)
TO252-3L: Control Circuitry/Power Transistor (Note 7)
TO220-3L: Control Circuitry/Power Transistor (Note 7)
TO263-3L: Control Circuitry/Power Transistor (Note 7)
oC/W
oC/W
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 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.
6. 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.
7. 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
θ
JC
is located on the thermal tab.
8. 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
θ
JC
is located on the thermal tab.
AP1117 Rev. 19
DS31009
5 of 12
www.diodes.com
JANUARY 2010
©
Diodes Incorporated
京公网安备 11010802033920号
EEWORLD
