Diodes AP1122DG-13 1a low dropout positive regulator Datasheet

AP1122
1A LOW DROPOUT POSITIVE REGULATOR
Description
Pin Assignments
AP1122 is a low dropout positive fixed-mode regulator with
1A output current capability. The product is specifically
(Top View)
designed to provide well-regulated supply for low voltage IC
3
VIN
2
VOUT
1
GND
applications such as high-speed bus termination and low
current 1.2V logic supply. AP1122 is also well suited for other
applications such as VGA cards. AP1122 is guaranteed to
have lower than 1.3V dropout at full load current making it
ideal to provide well-regulated outputs of 1.2 output voltage
Tab is VOUT
with 2.5V input voltage supply.
SOT223-3L
Applications
•
•
(Top View)
VIN
3
PC peripheral
Communication
2
VOUT
Features
GND
1
•
•
•
•
•
•
•
•
•
1.3V maximum dropout at full load current
Fixed 1.2V± 2% output voltage
Fast transient response
Output current limiting
Built-in thermal shutdown
Good noise rejection
Packages: SOT223-3L, TO252-3L, SOT89-3L, TO263-3L
and TO220-3L
SOT89-3L, SOT223-3L and TO252-3L: Available in
“Green” Molding Compound (No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 1)
Tab is VOUT
TO252-3L/ TO263-3L
(Top View)
3
VIN
2
VOUT
1
GND
Tab is VOUT
SOT89-3L
( Top View)
3
VIN
2
VOUT
1
GND
Tab is VOUT
TO220-3L
Notes:
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.
AP1122
Document number: DS31012 Rev. 9 - 2
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AP1122
1A LOW DROPOUT POSITIVE REGULATOR
Typical Application Circuit
2.5V
C1
100uF
VIN
VOUT
1.2V/1A
C2
100uF
GND
Tab is VOUT
Pin Descriptions
Pin Name
I/O
Pin #
Description
GND
I
1
Ground Pin
VOUT
O
2
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
3
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.
Functional Block Diagram
V IN
3
2
V OUT
1
GND
+
+
1.2V
+
CURRENT
LIMIT
+
Thermal
Shutdown
AP1122
Document number: DS31012 Rev. 9 - 2
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AP1122
1A LOW DROPOUT POSITIVE REGULATOR
Absolute Maximum Ratings
Symbol
VIN
TST
TMJ
Parameter
DC Supply Voltage
Storage Temperature
Maximum Junction Temperature
Rating
-0.3 to 12
-65 to +150
150
Unit
V
o
C
o
C
Recommended Operating Conditions
Symbol
IOUT
TOP
Parameter
Min
0
Output Current
Operating Junction Temperature Range
Max
1.0
125
Unit
A
o
C
Electrical Characteristics (Under Operating Conditions)
Parameter
Test Conditions
o
Output Voltage
2.5V≦VIN≦12V, IO=10mA, TA=25 C
Line Regulation
2.5V≦VIN≦12V, IO=10mA, TA=25oC
Load Regulation
Dropout Voltage
(VIN-VOUT)
Current Limit
Minimum Load Current
(Note 4)
Thermal Regulation
Ripple Rejection
Temperature Stability
VIN=2.5V~12V, 10mA<Io<1A, TA=25oC (Note 2, 3)
θJA Thermal Resistance
Junction-to-Ambient
θJC Thermal Resistance
Junction-to-Case
Notes:
Min
Typ.
Max
1.176
1.2
1.224
V
0.2
%
1
%
1.3
V
IOUT = 1A ,ΔVOUT = 1%VOUT
(VIN-VOUT) = 5V
Unit
1. 1
0oC≦TJ≦125oC
o
TA=25 C, 30ms pulse
F=120Hz,COUT=25uF Tantalum, IOUT=1A, VIN=VOUT+3V
IO=10mA
SOT89-3L: Control Circuitry/Power Transistor (Note 5)
SOT223-3L: Control Circuitry/Power Transistor (Note 6)
TO252-3L: Control Circuitry/Power Transistor (Note 5)
TO220-3L: Control Circuitry/Power Transistor (Note 5)
TO263-3L: Control Circuitry/Power Transistor (Note 5)
SOT89-3L: Control Circuitry/Power Transistor (Note 5)
SOT223-3L: Control Circuitry/Power Transistor (Note 6)
TO252-3L: Control Circuitry/Power Transistor (Note 5)
TO220-3L: Control Circuitry/Power Transistor (Note 5)
TO263-3L: Control Circuitry/Power Transistor (Note 5)
A
5
10
mA
0.008
60
0.5
182
107
73
78
60
42
16
12
3.5
3.5
0.04
70
%/W
dB
%
o
C/W
o
C/W
2. 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.
3. 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.
4. 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.
5. Test conditions for SOT89-3L, TO252-3L, TO220-3L, and TO263-3L: Devices mounted on FR-4 substrate, single sided PC
board, 2oz copper, with minimum recommended pad layout, no air flow.
6. Test condition for SOT223-3L: Device mounted on FR-4 substrate, single sided PC board, 2oz copper, with 5mmX5mm thermal
pad layout, no air flow.
AP1122
Document number: DS31012 Rev. 9 - 2
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AP1122
1A LOW DROPOUT POSITIVE REGULATOR
Typical Performance Characteristics
0.20
2. 0
Output Voltage Deviation (%)
1. 8
1. 6
Dropout Voltage (V)
1. 4
1. 2
0
I load=800mA
-0.20
Tj = 25 oC
1. 0
-0.40
0. 8
Tj = 125 oC
0. 6
-0.80
0. 4
0. 2
0
0
250
750
500
-1
1000
Output Current (mA)
-25
Dropout Voltage vs Output Current
0
25
50
Temperature (oC)
75
100
125
Load Regulation vs Temperature
2
1
1.5
0. 5
0
-0.5
-1
-1.5
-2
-50
-25
0
25
50
Temperature (oC)
75
100
125
150
Output Voltage Deviation (%)
Output Voltage Change (%)
0.8
1
0.6
0.4
0.2
0
2
Cin=1uF
Cout=10uF Tantalum
6.5
5.5
40
20
0
-20
-40
0
20
40
60
80
100 120 140 160 180 200
TIME (us)
Document number: DS31012 Rev. 9 - 2
10
12
Line Regulation
30
C in = 1uF
C out = 10 uF Tantalum
Preload = 100mA
20
10
0
-10
-20
2
1
0
-1
0
Line Transient Response
AP1122
8
Input Voltage (V)
Load Current (A) Output Voltage Deviation (mV)
Output Voltage Deviation (mV) Input Voltage (V)
7.5
6
4
Percent Change in Output Voltage vs Temperature
10
20
30
40
50
60
70
80
90
100
TIME (us)
Load Transient Response
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AP1122
1A LOW DROPOUT POSITIVE REGULATOR
Ordering Information
AP 1122 X X - X
Package
E : SOT223-3L
D : TO252-3L
Y : SOT89-3L
K : TO263-3L
T : TO220-3L
Device
AP1122EL-13
AP1122EG-13
AP1122DL-13
AP1122DG-13
AP1122YL-13
AP1122YG-13
AP1122KL-13
AP1122TL-U
Notes:
Package
Code
Packaging
(Note 8)
E
E
D
D
Y
Y
K
T
SOT223-3L
SOT223-3L
TO252-3L
TO252-3L
SOT89-3L
SOT89-3L
TO263-3L
TO220-3L
Lead Free
L : Lead Free (Note 7)
G : Green
Tube
Part Number
Quantity
Suffix
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
50
-U
Packing
U : Tube
13 : Tape & Reel
13” Tape and Reel
Part Number
Quantity
Suffix
2500/Tape & Reel
-13
2500/Tape & Reel
-13
2500/Tape & Reel
-13
2500/Tape & Reel
-13
2500/Tape & Reel
-13
2500/Tape & Reel
-13
800/Tape & Reel
-13
NA
NA
7. TO263-3L and TO220-3L are available in “Lead Free” products only.
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
AP1122
Document number: DS31012 Rev. 9 - 2
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AP1122
1A LOW DROPOUT POSITIVE REGULATOR
Marking Information
(1) SOT223-3L
( Top View )
Logo
YWX
Part Number
1122
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week;
z repersents 52 and 53 week
X : Internal code
a~z : Lead Free
A~Z : Green
(2) TO252-3L
( Top View )
Logo
1122
YY WW X X
Part Number
L : Lead Free
G : Green
YY : Year : 01~09
WW : Week : 01~52, 52 represents
52 and 53 week
X : Internal Code
(3) SOT89-3L
( Top View )
XX
Y W X
1
Part Number
AP1122
AP1122
Document number: DS31012 Rev. 9 - 2
2
3
XX : Identification code
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week;
z represents 52 and 53 week
X : Internal code
a~z : Lead Free
A~Z : Green
Package
SOT89-3L
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Identification Code
JB
May 2010
© Diodes Incorporated
AP1122
1A LOW DROPOUT POSITIVE REGULATOR
Marking Information (Continued)
(4) TO263-3L
( Top View )
Logo
Part Number
L : Lead Free
1122
YY WW X X
YY : Year : 01~09
WW : Week : 01~52, 52 represents
52 and 53 week
X : Internal code
(5) TO220-3L
( Top View )
Logo
L : Lead Free
Part Number
1122
YY WW X X
YY : Year : 01~09
WW : Week : 01~52, 52 represents
52 and 53 week
X : Internal code
AP1122
Document number: DS31012 Rev. 9 - 2
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AP1122
1A LOW DROPOUT POSITIVE REGULATOR
Package Outline Dimensions (All Dimensions in mm)
(1) SOT223-3L
AP1122
Document number: DS31012 Rev. 9 - 2
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AP1122
1A LOW DROPOUT POSITIVE REGULATOR
Package Outline Dimensions (Continued)
6.354/6.80 Typ 6.58
5.6
7.2
11.0
5.40/6.20
Typ 5.57
5.6
5.20/5.50 Typ 5.35
0.88/1.27
(2) TO252-3L
2.0
2.25
1.2
2.28
BSC.
4.57 BSC.
Land Pattern Recommendation (Unit: mm)
0.64/1.02
Typ 0.83
0.89/
1.14
0.45/0.58
Typ 0.52
2.18/2.40
Typ 2.29
9.00/10.40 Typ 9.70
0.51
SEE NOTE2
0.61 Typ
SEATING
PLANE
0.45/0.58
Typ 0.52
(3) SOT89-3L
1.40/1.75
Typ 1.60
2.7
3.94/4.25
1.45/1.55
Typ 1.50
1.3
1.9
0.4
0.80/
1.20
2.35/2.60 Typ 2.48
1.7
1.5
0.9
Land Pattern Recommendation (Unit: mm)
2.90/3.10
Typ 3.00
50 (2x)
80 (2x)
1.40/1.60
Typ 1.50
4.40/4.60 Typ 4.50
0.36/0.48 0.41/0.53 0.36/0.48
Typ 0.42 Typ 0.47 Typ 0.42
AP1122
Document number: DS31012 Rev. 9 - 2
0.35/0.43
Typ 0.39
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AP1122
1A LOW DROPOUT POSITIVE REGULATOR
Package Outline Dimensions (Continued)
10.9
1.27/
1.78
Typ
1.52
3
15.7
9.1
8.65/9.65 Typ 9.15
14.61/15.88 Typ 15.24
9.65/10.29 Typ 9.97
2.92
Typ 1.30
(4) TO263-3L
2.54
BSC.
1.3
0.51/0.99 Typ 0.75
Land Pattern Recom m endation (Unit: m m )
0.38 Typ
4.06/4.83
Typ 4.45
1.14/1.40 Typ1.27
2.54
1.14/1.40
Typ 1.27
2.28/2.80 Typ 2.54
(5) TO220-3L
Ø3.53/4.09
Typ 3.81
3.55/4.85
Typ 4.20
0.51/1.40
Typ 0.95
SEATING PLANE
9.70/10.70
Typ 10.20
5.84/6.86
Typ 6.35
14.20/16.50
Typ 15.35
2.54/3.43
Typ 2.98
1.14/1.78
Typ 1.46
4.83/5.33
Typ 5.08
AP1122
Document number: DS31012 Rev. 9 - 2
12.72/14.72
Typ 13.72
3.66/6.35
Typ 5.00
0.31/1.14
0.51/1.14 Typ 0. 72
Typ 0.83
2.99/2.79
Typ 2.54
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2.03/2.92
Typ2.48
May 2010
© Diodes Incorporated
AP1122
1A LOW DROPOUT POSITIVE REGULATOR
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DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
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Copyright © 2010, Diodes Incorporated
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AP1122
Document number: DS31012 Rev. 9 - 2
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