AP1086T15L-U [DIODES]
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR; 1.5A低压差正可调或固定模式稳压器
| 型号： | AP1086T15L-U |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR |
| 文件： | 总8页 (文件大小：164K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AP1086
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
General Description
Features
AP1086 is a low dropout positive adjustable or fixed-mode
regulator with 1.5A 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. AP1086 is also well suited for other
applications such as VGA cards. AP1086 is guaranteed to have
lower than 1.4V dropout at full load current making it ideal to
provide well-regulated outputs of 1.25V to 5.0V with 4.7 to 12V
input supply by different output voltage.
•
3-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V,3.3V,
5.0V
1.4V Maximum Dropout at Full Load Current
Fast Transient Response
Built-in Thermal Shutdown
•
•
•
•
•
•
Output Current Limiting
Packages: TO252-3L, TO263-3L, and TO220-3L
Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
Ordering Information
AP1086 X
Package
X
X
X
Low Dropout Regulator
Vout
Lead Free
Packing
Blank : Adj L : Lead Free Package -U : Tube
D : TO252-3L
K : TO263-3L
T : TO220-3L
15 = 1.5V
18 = 1.8V
25 = 2.5V
33 = 3.3V
50 = 5.0V
-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
Tube/Bulk
13” Tape and Reel
Package Packaging
Part Number
Code
(Note 2)
Quantity
Quantity
Part Number Suffix
Suffix
AP1086D
AP1086K
AP1086T
D
K
T
TO252-3L
TO263-3L
TO220-3L
80
50
50
-U
2500/Tape & Reel
800/Tape & Reel
NA
-13
-13
NA
Lead-free
Lead-free
-U
-U
Lead-free
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.
Block Diagram
3
2
V
in
V
out
+
+
+
-
1.25V
CURRENT
LIMIT
+
Thermal
Shutdown
1
Adj
AP1086 Rev. 2
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© Diodes Incorporated
AP1086
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Connection Diagram
3 PIN TO263
FRONT VIEW
3 PIN TO252
FRONT VIEW
3
3 PIN TO220
FRONT VIEW
Vin
3
2
1
Vin
Vin
Vout
3
2
1
Vout
2
Vout
Adj
(GND)
Adj
(GND)
Adj
(GND)
1
Tab is Vout
Tab is Vout
Tab is Vout
Pin Descriptions
NAME
I/O
PIN #
FUNCTION
Adjustable (Ground only for fixed mode)
Adj
(GND)
1
The output of the regulator. A minimum of 10uF capacitor must be
connected from this pin to ground to insure stability.
Vout
O
I
2
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 1.4V higher than Vout in order for the
device to regulate properly.
Vin
3
Absolute Maximum Ratings
Symbol
Parameter
Rating
Unit
Vin
PD
TST
TOP
DC Supply Voltage
Power Dissipation
Storage Temperature
Operating Junction Temperature Range
-0.3 to 12
V
Internally Limited
-65 to +150
0 to +150
oC
oC
AP1086 Rev. 2
2 of 8
MARCH 2007
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© Diodes Incorporated
AP1086
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Electrical Characteristics ( Under Operating Conditions )
PARAMETER
CONDITIONS
MIN
TYP
MAX UNIT
TA = 25οC,(VIN-VOUT)= 1.5V,IO = 10mA
Reference Voltage AP1086-Adj
1.225
1.250
1.275
1.530
V
V
IOUT = 10mA, TA = 25οC, 3V≦VIN≦
AP1086-1.5
AP1086-1.8
1.470
1.764
2.450
3.235
1.500
1.800
2.500
3.300
12V
IOUT = 10mA, TA = 25οC, 3.3V≦VIN≦
1.836
2.550
3.365
V
V
V
12V
IOUT = 10mA, TA = 25οC, 4V≦VIN≦
Output Voltage
Line Regulation
AP1086-2.5
AP1086-3.3
AP1086-5.0
12V
IOUT = 10mA, TA = 25οC, 4.8V≦VIN≦
12V
IOUT = 10mA, TA = 25οC, 6.5V≦VIN≦
4.900
5.000
5.100
0.2
1
V
12V
AP1086-XXX IO = 10mA, VOUT+1.5V<VIN<12V
-
-
-
-
%
%
VIN = 3.3V, 0mA<Io<1.5A, TA = 25οC
AP1086-Adj
(Note 3, 4)
VIN = 3V, 0mA<Io<1.5A, TA = 25οC
AP1086-1.5
(Note 3, 4)
-
-
-
-
-
12
15
20
26
40
15
18
25
33
50
mV
mV
mV
mV
mV
VIN = 3.3V, 0mA<Io<1.5A, TA = 25οC
AP1086-1.8
(Note 3, 4)
Load Regulation
VIN = 4V, 0mA<Io<1.5A, TA = 25οC
AP1086-2.5
(Note 3, 4)
VIN = 5V, 0≦IOUT≦1.5A, TA = 25οC ,
AP1086-3.3
TJ = 25oC (Note 3, 4)
VIN = 8V, 0≦IOUT≦1.5A, TA = 25οC ,
AP1086-5.0
TJ = 25oC (Note 3, 4)
AP1086-Adj/-
2.5
/-3.3/-3.6/-5.0
Dropout Voltage
-
1.3
-
1.4
-
V
A
I
OUT = 1.5A, ∆VOUT = 1%VOUT
(VIN-VOUT
)
AP1086-Adj/-
2.5
Current Limit
(VIN-VOUT) = 5V
1. 6
/-3.3/-3.6/-5.0
Minimum Load
Current
Thermal
0oC≦Tj≦125oC
AP1086-XXX
-
-
5
10
mA
TA = 25οC, 30ms pulse
0.008
0.04
%/W
Regulation
f = 120Hz,COUT = 25uF Tantalum, IOUT = 1.5A
Ripple Rejection
AP1086-XXX
VIN = VOUT+3V
-
-
-
60
0.003
0.5
101
83
86
15
0.65/2.7
0.65/2.7
70
-
-
dB
%
%
RMS Noise (% of VOUT
)
10Hz ≤ f ≤ 10KHz
Temperature Stability
Thermal Resistance
Junction-to-Ambient
IO = 10mA
TO252-3L
TO263-3L
-
-
-
-
OC/W
(No heat sink ;No air flow) TO220-3L
TO252-3L: Control Circuitry/Power Transistor
TO263-3L: Control Circuitry/Power Transistor
TO220-3L: Control Circuitry/Power Transistor
Thermal Resistance
Junction-to-Case
OC/W
Notes: 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 15W. Power dissipation is determined by the difference in input
and output 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 in maintaining regulation. At 12V input/output differential the
device is guaranteed to regulate if the output current is greater than 10mA.
AP1086 Rev. 2
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MARCH 2007
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© Diodes Incorporated
AP1086
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Typical Application
Adjustable Regulator
5V to 3.3V Fixed Mode Regulator
5V
5V
C1
100uF
C1
100uF
Vin
Vin
×
V
OUT=Vref (1+R2/R1)
Vout
3.3V/1.5A
Vout
Adj
2.5V/1.5A
R1
C2
100uF
121Ω
R2
C2
GND
100uF
121Ω
Tab is Vout
Tab is Vout
R2
R1
V = VREF ∗ (1+
)
Note:
o
Functional Description
Introduction
The AP1086 adjustable or fixed-mode Low Dropout (LDO) regulator is a 3 terminal device which can easily be programmed by internal
mask change to any voltages within the range of 1.25V to Vin-1.4V. The AP1086 only needs 1.4V differential between Vin and Vout to
maintain output regulation. In addition, the output voltage tolerances are also extremely tight and they include the transient response as
part of the specification. For example, Intel VRE specification calls for a total of +/- 100mV including initial tolerance, load regulation and 0
to 1.5A load step.
The AP1086 is specifically designed to meet the fast current transient needs as well as providing an accurate initial voltage, reducing the
overall system cost with the need for fewer output capacitors.
Load Regulation
Since the AP1086 is only a 3 terminal device, it is not possible to provide true remote sensing of the output voltage at the load. But it can
supply good load regulation by internal feedback bypass the external loss such as adjustable mode.
Stability
The AP1086 requires the use of an output capacitor as part of the frequency compensation in order to make the regulator stable. For
most applications a minimum of 10uF aluminum electrolytic capacitor insures both stability and good transient response.
Thermal Design
The AP1086 incorporates an internal thermal shutdown that protects the device when the junction temperature exceeds the maximum
allowable junction temperature. Although this device can operate with junction temperatures in the range of 150oC, it is recommended
that the selected heat sink be chosen such that during maximum continuous load operation the junction temperature is kept below the
temperature.
Layout Consideration
The output capacitors must be located as close to the Vout terminal of the device as possible. It is recommended to use a section of a
layer of the PC board as a plane to connect the Vout pin to the output capacitors to prevent any high frequency oscillation that may result
due to excessive trace inductance.
AP1086 Rev. 2
4 of 8
MARCH 2007
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© Diodes Incorporated
AP1086
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Typical Performance Characteristics
2. 0
1. 8
1. 6
1. 4
1. 2
1. 0
0. 8
0. 6
0. 4
0. 2
0
0.20
0
I load=1.5A
-0.20
-0.40
-0.80
- 1
Tj = 25 oC
Tj = 125 oC
25
50
75
100
125
-25
0
0
0.25
0.5
0.75
1.0
1.25
1.5
Temperature (oC)
Output Current (A)
Dropout Voltage vs Output Current
Load Regulation vs Temperature
2
1.5
1
1
0.8
0. 5
0
0.6
0.4
-0.5
- 1
0.2
0
-1.5
- 2
-50 -25
0
25
50
75
100 125 150
6
8
10
12
2
4
Temperature (oC)
Input Voltage (V)
Line Regulation
Percent Change in Output Voltage vs Temperature
7.5
30
20
Cin=1uF
Cout=10uF Tantalum
Preload=100mA
Cin=1uF
Cout=10uF Tantalum
6.5
10
0
5.5
40
-10
-20
2
20
0
1
-20
0
-40
-1
0
20 40 60 80 100 120 140 160 180 200
TIME (us)
20 30 40 50 60 70 80 90 100
TIME (us)
Load Transient Response
0
10
Line Transient Response
AP1086 Rev. 2
5 of 8
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MARCH 2007
© Diodes Incorporated
AP1086
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Marking Information
(Top View )
86-VV
Logo
Part Number
1086 for ADJ
86- W : 15 for 1.5V
18 for 1.8V
YYWWX X
L: Lead Free Package
25 for 2.5V
33 for 3.3V
50 for 5V
X
: Internal code(Optional)
WW: Xth week: 01~52
YY : Year: "01"=2001
"02"=2002
(TO252-3L)
(Top View )
Logo
1086-VV
YYWWX X
Part Number
VV : 15 for 1.5V
18 for 1.8V
25 for 2.5V
33 for 3.3V
50 for 5V
L: Lead Free Package
X
: Internal code(Optional)
Blank for ADJ
WW: Xth week: 01~52
YY : Year: "01"=2001
"02"=2002
(TO220-3L / TO263-3L)
AP1086 Rev. 2
6 of 8
MARCH 2007
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© Diodes Incorporated
AP1086
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Package Dimension
(1) TO263-3L
10.9
9.65/10.29 Typ 9.97
2.54
Land Pattern Recommendation (Unit: mm)
0.38 Typ
1.3
2.54
BSC.
0.51/0.99 Typ 0.75
1.14/1.40 Typ1.27
2.28/2.80 Typ 2.54
(2) TO252-3L
5.6
6.354/6.80 Typ 6.58
5.20/5.50 Typ 5.35
2.25
1.2
Land Pattern Recommendation (Unit: mm)
2.18/2.40
2.28
BSC.
4.57 BSC.
0.61 Typ
0.64/1.02
Typ 0.83
0.89/
1.14
Typ 2.29
9.00/10.40 Typ 9.70
SEATING
PLANE
0.45/0.58
Typ 0.52
0.51
0.45/0.58
Typ 0.52
AP1086 Rev. 2
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MARCH 2007
© Diodes Incorporated
AP1086
1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Package Dimension ( Continued )
(3) TO220-3L
3.55/4.85
Typ 4.20
9.70/10.70
2.54/3.43
0.51/1.40
Typ 0.95
3.53/4.09
Typ 3.81
Typ 10.20
Typ 2.98
5.84/6.86
Typ 6.35
3.66/6.35
Typ 5.00
1.14/1.78
Typ 1.46
0.31/1.14
Typ 0.72
0.51/1.14
Typ 0.83
2.03/2.92
Typ 2.48
2.99/2.79
Typ 2.54
4.83/5.33
Typ 5.08
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agreeto hold DiodesIncorporatedand all the companieswhose productsare represented onour website, harmlessagainst all damages.
LIFE SUPPORT
Diodes Incorporated productsare notauthorizedfor use ascriticalcomponentsin lifesupportdevices or systemswithout theexpressed written approval ofthe
PresidentofDiodesIncorporated.
AP1086 Rev. 2
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MARCH 2007
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© Diodes Incorporated
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