AP1086D15 [ICT]
Fixed Positive LDO Regulator, 1.5V, PSSO2, TO-252AB, 3 PIN;
| 型号： | AP1086D15 |
| 厂家： | 
InnoChips Technology |
| 描述： | Fixed Positive LDO Regulator, 1.5V, PSSO2, TO-252AB, 3 PIN |
| 文件： | 总9页 (文件大小：207K) |
| 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
Features
General Description
• 3-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V,
3.3V, 5.0V
AP1086 is a low dropout positive adjustable or
fixed-mode regulator with minimum of 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
<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.
• 1.4V Maximum Dropout at Full Load Current
• Fast Transient Response
• Built-in Thermal Shutdown
• Output Current Limiting
Ordering Information
Low Dropout Regulator
Package
Vout
Lead Free
Packing
Blank : Normal
Blank : Adj
15 = 1.5V
18 = 1.8V
25 = 2.5V
33 = 3.3V
50 = 5.0V
Blank : Tube
D : TO252-3L
K : TO263-3L
T : TO220-3L
L : Lead Free Package
A
:
Taping
Typical Application
Adjustable Regulator
5V to 3.3V Fixed Mode Regulator
5V
5V
C1
C1
100uF
100uF
Vin
Vin
×
VOUT=Vref (1+R2/R1)
Vout
GND
3.3V/1.5A
Vout
Adj
2.5V/1.5A
R1
C2
100uF
121Ω
R2
C2
100uF
121Ω
Tab is Vout
Tab is Vout
R2
R1
V = VREF ∗ (1+
)
Note:
o
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev.1.3 Jun. 8, 2005
1/9
AP1086
1.5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Block Diagram
Vin
3
2
Vout
+
+
+
1.25V
－
CURRENT
LIMIT
+
THERMAL
Adj
1
SHUTDOWN
(GND)
Connection Diagram
3 PIN TO263
FRONT VIEW
3 PIN TO252
FRONT VIEW
3
3 PIN TO220
FRONT VIEW
Vin
Vout
3
2
1
Vin
Vin
Vout
3
Vout
2
2
1
Adj
(GND)
Adj
(GND)
Adj
1
(GND)
Tab is Vout
Tab is Vout
Tab is Vout
Pin Descriptions
NAME
I/O
PIN #
FUNCTION
Adjustable (Ground only for fixed mode)
Adj
1
(GND)
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.
3
Vin
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Jun. 8, 2005
2/9
AP1086
1.5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Absolute Maximum Ratings
Symbol
Parameter
Rating
Unit
Vin
DC Supply Voltage
Power Dissipation
-0.3 to 12
V
PD
Internally Limited
TST
TOP
Storage Temperature
-65 to +150
0 to +150
oC
oC
Operating Junction Temperature Range
Electrical Characteristics (Under Operating Conditions)
PARAMETER
CONDITIONS
MIN
1.225
1.470
TYP
1.250
1.500
MAX UNIT
Reference Voltage
AP1086-Adj
AP1086-1.5
TJ=25oC,(VIN-VOUT)=1.5V,IO=10mA
1.275
1.530
V
V
IOUT = 10mA, TJ = 25oC, 3V≦VIN≦12V
I
OUT = 10mA, TJ = 25oC, 3.3V≦VIN≦
Output Voltage
AP1086-1.8
AP1086-2.5
AP1086-3.3
1.764
2.450
3.235
1.800
2.500
3.300
1.836
2.550
3.365
V
V
V
12V
I
OUT = 10mA, TJ = 25oC, 4V≦VIN≦12V
IOUT = 10mA, TJ = 25oC, 4.8V≦VIN≦
12V
I
OUT = 10mA, TJ = 25oC, 6.5V≦VIN≦
AP1086-5.0
AP1086-XXX
AP1086-Adj
4.900
5.000
5.100
0.2
1
V
%
%
12V
Line Regulation
Load Regulation
IO=10mA, VOUT+1.5V<VIN<12V
-
-
-
-
VIN=3.3V, 0mA<Io<1.5A, TJ=25oC
(Note 1, 2)
VIN=3V, 0mA<Io<1.5A, TJ=25oC
(Note 1, 2)
AP1086-1.5
AP1086-1.8
AP1086-2.5
AP1086-3.3
-
-
-
-
12
15
20
26
15
18
25
33
mV
mV
mV
mV
VIN=3.3V, 0mA<Io<1.5A, TJ=25oC
(Note 1, 2)
VIN=4V, 0mA<Io<1.5A, TJ=25oC
(Note 1, 2)
V
IN = 5V, 0≦IOUT≦1.5A, TJ=25oC ,
TJ=25oC (Note 1.2)
V
IN = 8V, 0≦IOUT≦1.5A, TJ=25oC ,
AP1086-5.0
-
-
40
1.3
-
50
mV
V
TJ=25oC (Note 1.2)
Dropout Voltage
AP1086-Adj/-2.5
/-3.3/-3.6/-5.0
1.4
IOUT = 1.5A, ∆VOUT=1%VOUT
(VIN-VOUT
)
AP1086-Adj/-2.5
Current Limit
(VIN-VOUT) = 5V
0oC≦Tj≦125oC
1. 6
-
A
/-3.3/-3.6/-5.0
Minimum Load Current
Thermal Regulation
AP1086-XXX
-
-
5
10
mA
TA=25℃, 30ms pulse
0.008
0.04 %/W
F=120Hz,COUT=25uF Tantalum, IOUT=1.5A
Ripple Rejection
AP1086-XXX
10Hz ≤ f ≤ 10KHz
IO=10mA
VIN=VOUT+3V
-
-
-
60
0.003
0.5
70
-
dB
%
RMS Noise (% of VOUT
Temperature Stability
)
-
%
Thermal Resistance
TO-252
101
Junction-to-Ambient
TO-263
-
83
-
OC/W
(No heat sink ;No air flow) TO-220
86
TO-252: Control Circuitry/Power Transistor
TO-263: Control Circuitry/Power Transistor
TO-220: Control Circuitry/Power Transistor
15
Thermal Resistance
Junction-to-Case
-
0.65/2.7
0.65/2.7
-
OC/W
Note 1: 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.
Note 2: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.
Note 3: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.
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Jun. 8, 2005
3/9
AP1086
1.5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Functional Description
make the regulator stable. For most applications a
minimum of 10uF aluminum electrolytic capacitor
insures both stability and good transient response.
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.
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.
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.
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.
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
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Jun. 8, 2005
4/9
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
Temperature (oC)
Load Regulation vs Temperature
50
75
100
125
-25
0
0
0.25
0.5
0.75
1.0
1.25
1.5
Output Current (A)
Dropout Voltage vs Output Current
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)
Percent Change in Output Voltage vs Temperature
Line Regulation
7.5
30
20
Cin=1uF
Cin=1uF
Cout=10uF Tantalum
6.5
Cout=10uF Tantalum
Preload=100mA
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)
Line Transient Response
20 30 40 50 60 70 80 90 100
TIME (us)
0
10
Load Transient Response
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Jun. 8, 2005
5/9
AP1086
1.5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Marking Information
( Top View)
Logo
Part Number
1086 for ADJ
86-VV : 15 for 1.5V
18 for 1.8V
86-VV
Blank: normal
YYWWX X
L: Lead Free Package
25 for 2.5V
33 for 3.3V
50 for 5V
YY : Year
WW: Nth week
X
: Internal code ( Optional)
(TO252-3L)
( Top View)
Logo
1086-VV
Part Number
VV : 15 for 1.5V
18 for 1.8V
25 for 2.5V
33 for 3.3V
50 for 5V
YYWWX X
Blank: normal
L: Lead Free Package
YY : Year
WW: Nth week
: Internal code ( Optional)
Blank for ADJ
X
(TO220-3L / TO263-3L)
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Jun. 8, 2005
6/9
AP1086
1.5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Package Dimension
(1) TO263-3L
10.9
E
2.54
1.3
e
b
b2
Land Pattern Recommendation (Unit: mm)
L1
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
4.06
0.51
1.14
Nom.
4.45
0.75
1.27
Max.
4.83
0.99
1.40
Min.
0.160
0.020
0.045
Nom.
0.175
0.030
0.050
Max.
0.190
0.039
0.055
A
b
b2
C
C2
D
E
0.38 TYP.
1.27
0.015 TYP.
0.050
1.14
8.65
9.65
1.40
9.65
10.29
0.045
0.055
9.15
9.97
0.341
0.380
0.360
0.393
0.380
0.405
e
L
L1
L2
L3
2.54 BSC.
15.24
2.54
0.100 BSC.
0.600
14.61
2.28
-
15.88
2.80
2.92
1.78
0.575
0.090
-
0.625
0.100
0.051
0.060
0.110
0.115
0.070
1.30
1.52
1.27
0.050
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Jun. 8, 2005
7/9
AP1086
1.5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
(2) TO252-3L
5.6
E
b2
2.25
1.2
Land Pattern Recommendation (Unit: mm)
H
b
e
e1
L
SEATING PLANE
Notes:
1.
2.
JEDEC Outline: TO-252 AB
Mils suggested for positive contact at mounting.
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
2.18
0.89
Nom.
2.29
Max.
2.40
1.14
Min.
0.086
0.035
Nom.
0.090
-
Max.
0.094
0.045
A
A1
b
b2
C
C1
D
E
e
e1
H
L
L1
L2
-
0.61 TYP.
5.35
0.024 TYP.
0.211
0.020
0.020
0.219
0.259
0.090 BSC.
0.180 BSC.
0.382
-
5.20
0.45
0.45
5.40
6.35
5.50
0.58
0.58
6.20
6.80
0.205
0.018
0.018
0.213
0.250
0.217
0.023
0.023
0.244
0.268
0.52
0.52
5.57
6.58
2.28 BSC.
4.57 BSC.
9.70
9.00
0.51
0.64
0.88
10.40
-
1.02
1.27
0.354
0.020
0.025
0.035
0.409
-
0.040
0.050
-
0.83
-
0.033
-
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Jun. 8, 2005
8/9
AP1086
1.5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
(3) TO220-3L
A
E
F
ΦP
H1
b1
C
b
J1
e
e1
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
3.55
1.14
0.51
0.31
14.20
9.70
2.29
4.83
0.51
5.84
2.03
12.72
3.66
3.53
2.54
Nom.
4.20
1.46
0.83
0.72
15.35
10.20
2.54
5.08
0.95
6.35
2.48
13.72
5.00
3.81
2.98
Max.
4.85
1.78
1.14
1.14
16.50
10.70
2.79
5.33
1.40
6.86
2.92
14.72
6.35
4.09
3.43
Min.
Nom.
0.165
0.057
0.033
0.028
0.604
0.402
0.100
0.200
0.037
0.250
0.098
0.540
0.197
0.150
0.117
Max.
0.191
0.070
0.045
0.045
0.650
0.421
0.110
0.210
0.055
0.270
0.115
0.580
0.250
0.161
0.135
A
b1
b
C
D
0.140
0.045
0.020
0.012
0.559
0.382
0.090
0.190
0.020
0.230
0.080
0.501
0.144
0.139
0.100
E
e
e1
F
H1
J1
L
L1
øP
Q
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Jun. 8, 2005
9/9
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