AOSMD AOZ1117TI-50L

AOZ1117
1A Low Dropout Linear Regulator
General Description
Features
The AOZ1117 is a low dropout positive adjustable or
fixed-mode regulator with minimum of 1A 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. The AOZ1117 is also well suited for other applications such as VGA cards. The AOZ1117 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 2.75V to 14V input supply.
●
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,
or 5.0V
●
TO252 package
Applications
●
PC peripheral
●
Communication
Typical Circuits
Fixed Output
Example
Fixed Output
Example
VIN + 5V
= 3.3V
V
= 3.3V
VOUT OUT
VIN + 5V
3
C1
10μF
Adjustable Output
Adjustable
OutputExample
Example
3
VIN
VOUT
VIN
C1
10μF
V2OUT
ADJ/GND
1
ADJ/GND
AOZ1117
VIN
5V
VIN
+ +5V
= 3.3V
VOUT
= 3.3V
VOUT
3
3
2
V
IN
VIN
V
VOUT
OUT
ADJ/GND
1
C2
C2 10μF
C1
10μF
C1
10μF
10μF
ADJ/GND
AOZ1117
2
2
1
R1
240Ω
R1
1
240Ω
AOZ1117
R2
390Ω
R2
AOZ1117
C2
10μF
C2
10μF
390Ω
!
VOUT = VREF x 1 +
R2
R1
= 1.250V
VREF x 1 +
VVOUT
REF =
R2
R1
VREF = 1.250V
Figure 1.
Rev. 1.1 September 2008
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Page 1 of 8
AOZ1117
Ordering Information
Part Number
Output Voltage
AOZ1117TI-AAL
Adjustable
AOZ1117TI-15L
1.5V
AOZ1117TI-18L
1.8V
AOZ1117TI-25L
2.5V
AOZ1117TI-33L
3.3V
AOZ1117TI-50L
5.0V
Ambient
Temperature Range
Package
Environmental
-40°C to +85°C
TO-252
Green Product
• All AOS products are offered in packages with Pb-free plating and compliant to RoHS standards.
• Parts marked as Green Products (with “L” suffix) use reduced levels of Halogens, and are also RoHS compliant.
Please visit www.aosmd.com/web/quality/rohs_compliant.jsp for additional information.
Pin Configuration
Tab
Pinout:
1. Adjust/Ground
2. VOUT
3. VIN
Heat sink tab is connected to Pin 2.
2
3
1
TO-252
(Top View)
Pin Description
Name
I/O
Pin #
Adj (GND)
I
1
A resistor divider from this pin to the Vout pin and ground sets the output voltage.
(Ground only for Fixed-Mode)
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 (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 1.4V higher than Vout in order for the device to regulate properly.
Rev. 1.1 September 2008
Function
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Page 2 of 8
AOZ1117
Absolute Maximum Ratings
Recommend Operating Ratings
Exceeding the Absolute Maximum ratings may damage the
device.
The device is not guaranteed to operate beyond the Maximum
Operating Ratings.
Parameter
Rating
VIN to GND
Parameter
-0.3V to +15V
Maximum Junction Temperature (TJ)
150°C
No heat sink; no air flow
1050mW
1818mW
ESD
2.75V to +14V
Operating Junction Temperature (TJ)
0°C to +125°C
-40°C to +85°C
Package Thermal Resistance (ΘJA)(2)
Multi-layer PCB copper area
(10mm x 10mm)
-65°C to +150°C
Rating(1)
Supply Voltage (VIN)
Ambient Temperature (TA)
Power Dissipation (PD), TA = 25°C,
TJ = 125°C, PD = (TJ – TA) / θJA
Storage Temperature (TS)
Rating
50°C/W
Note:
2.The package ΘJA is measured with the device mounted on 1-in2
FR-4 board with 2oz. Copper, in a still air environment with TA =
25°C. The value in any given application depends on the user’s specific board design.
±2kV
Note:
1. Devices are inherently ESD sensitive, handling precautions are
required. Human body model rating: 1.5kΩ in series with 100pF.
Block Diagram
VIN
3
2
VOUT
1
GND (Fixed)
1
ADJ
+
+
-
1.25V
CURRENT
LIMIT
+
+
Thermal
Shutdown
Rev. 1.1 September 2008
-
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Page 3 of 8
AOZ1117
Electrical Characteristics
Under Operating Conditions
Parameter
Operation Input Voltage
Device
Conditions
All
Min.
Typ.
2.75
Max
Unit
14
V
Reference Voltage
AOZ1117-ADJ
TJ = 25°C, (VIN-OUT) = 1.5V, IOUT = 10mA
1.225
1.250
1.275
V
Output Voltage
AOZ1117-1.5
IOUT = 10mA, TJ = 25°C, 3V ≤ VIN ≤ 12V
1.470
1.500
1.530
V
AOZ1117-1.8
IOUT = 10mA, TJ = 25°C, 3.3V ≤ VIN ≤ 12V
1.764
1.800
1.836
V
AOZ1117-2.5
IOUT = 10mA, TJ = 25°C, 4V ≤ VIN ≤ 12V
2.450
2.500
2.550
V
AOZ1117-3.3
IOUT = 10mA, TJ = 25°C, 4.8V ≤ VIN ≤ 12V
3.235
3.300
3.365
V
AOZ1117-5.0
IOUT = 10mA, TJ = 25°C, 6.5V ≤ VIN ≤ 12V
4.900
Line Regulation(1)(2)
Load Regulation(1)(2)
All
5.000
5.100
V
VIN = VOUT+1.5V~7V, IO = 10mA, TJ = 25°C
0.1
0.3
%
VIN = VOUT+1.5V~12V, IO = 10mA, TJ =
25°C
0.1
0.5
%
AOZ1117-ADJ
VIN = 3V, Vadj = 0,10mA < IO <1A, TJ = 25°C
1
%
AOZ1117-1.5
VIN = 3V, 10mA < IO < 1A, TJ = 25°C
12
15
mV
AOZ1117-1.8
VIN = 3.3V, 10mA < IO < 1A, TJ = 25°C
15
18
mV
AOZ1117-2.5
VIN = 4V, 10mA < IO < 1A, TJ = 25°C
20
25
mV
AOZ1117-3.3
VIN = 5V, 10mA ≤ IOUT ≤ 1A, TJ = 25°C
26
33
mV
AOZ1117-5.0
VIN = 6.5V, 10mA ≤ IOUT ≤ 1A, TJ = 25°C
40
50
mV
IOUT = 1A, ∆VOUT = 1% VOUT
1.3
1.4
V
Dropout Voltage
(VIN–VOUT)
All
Current Limit
All
VIN – VOUT = 3V
Minimum Load Current
All
0°C ≤ Tj ≤ 125°C
5
10
mA
Ripple Rejection
All
VIN = VOUT + 3V, f = 120Hz, COUT = 25µF
Tantalum
60
70
dB
Temperature Stability
All
IO = 10mA
0.5
%
Thermal Resistance (θJA )
All
Junction-to-Ambient
(No heat sink; no air flow)
92
°C/W
Junction-to-Ambient(4)
55
Junction-to-Case
10
Thermal Resistance (θJC)
All
1. 1
A
°C/W
Notes:
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.
2. 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.
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.
4. Output is connected to the multi-layer PCB cupper area 10mm x 10mm separately. If you need large PD or lower Tc & Tj, please connect to the
large copper area > 10mm x 10mm.
Rev. 1.1 September 2008
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Page 4 of 8
AOZ1117
Typical Performance Characteristics
Dropout Voltage vs Output Current
Load Regulation vs Temperature
0.20
2.0
Output Voltage Deviation (%)
1.8
Dropout Voltage (V)
1.6
1.4
1.2
Tj = 25 oC
1.0
0.8
Tj = 125 oC
0.6
0.4
0
I load = 800mA
-0.20
-0.40
-0.80
0.2
0
0
250
750
500
-1
1000
-25
25
0
Percent Change in Output Voltage vs Temperature
75
100
125
Line Regulation
2
1
1.5
Output Voltage Deviation (%)
Output Voltage Change (%)
50
Temperature (oC)
Output Current (mA)
1
0. 5
0
-0.5
-1
0.8
0.6
0.4
0.2
-1.5
-2
-50
-25
0
25
50
75
100
125
0
150
2
Output Voltage Deviation (mV)
Cin=1μF
Cout=10μF Tantalum
5.5
40
20
0
-20
-40
20
40
60
80
100 120 140 160 180 200
30
12
C in = 1μF
C out = 10 μF Tantalum
Preload = 100mA
20
10
0
-10
-20
2
1
0
-1
0
Time (μs)
Rev. 1.1 September 2008
10
Load Transient Response
Load Current (A)
Output Voltage Deviation (mV) Input Voltage (V)
Line Transient Response
7.5
0
8
Input Voltage (V)
Temperature ( C)
6.5
6
4
o
10
20
30
40
50
60
70
80
90
100
Time (μs )
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Page 5 of 8
AOZ1117
Package Dimensions, TO252-3L
A
E
b2
A2
c1
L3
D
H
Optional
1
2
3
L1
e
e1
c
b1
b 3 places
See Detail ‘D’
.004"
.010"
Gauge Plane
L2
Seating Plane
See Detail ‘E’
Optional
Option 1
L
0° to 10°
Option 2
A1
DETAIL ‘E’
DETAIL ‘D’
Dimensions in millimeters
RECOMMENDED LAND PATTERN
Dimensions in inches
Symbols
A
A1
A2
b
b1
b2
c
Min.
2.184
0.000
0.889
0.635
0.762
4.953
0.450
Nom.
2.286
—
—
0.762
—
—
0.508
Max.
2.388
0.127
1.143
0.889
1.143
5.461
0.610
Symbols
A
A1
A2
b
b1
b2
c
Min.
0.086
0.000
0.035
0.025
0.030
0.195
0.018
Nom.
0.090
—
—
0.030
—
—
0.020
Max.
0.094
0.005
0.045
0.035
0.045
0.215
0.024
c1
D
0.450
5.969
—
6.096
0.610
6.223
c1
D
0.018
0.235
—
0.240
0.024
0.245
E
e
e1
H
L
L1
L2
6.350
6.604 6.731
2.286 BSC
4.572 BSC
9.398
—
10.414
1.270
—
2.032
0.635
—
1.016
0.508 BSC
E
e
e1
H
L
L1
L2
0.250
L3
0.889
—
1.270
L3
Notes:
1. Package body sizes exclude mold flash and gate burrs. Mold flash should be less than 6 mils.
2. Dimension L is measured in gauge plane.
3. Tolerance 0.10mm unless otherwise specified.
4. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact.
5. Refer to JEDEC TO-252(AA).
0.035
6.25 Min.
6.80 Min.
6.60
1.50 Min.
2.286
3.00 Min.
4.572 BSC
UNIT: mm
Rev. 1.1 September 2008
www.aosmd.com
0.260 0.265
0.090 BSC
0.180 BSC
0.370
—
0.410
0.050
—
0.080
0.025
—
0.040
0.020 BSC
—
0.050
Page 6 of 8
AOZ1117
Tape and Reel Dimensions, TO252-3L
Carrier Tape
P1
P2
D1
T
E1
E2
E
B0
K0
A0
P0
D0
Feeding Direction
UNIT: mm
Package
A0
TO-252 (DPAK) 6.90
(16mm)
±0.10
B0
K0
D0
D1
E
E1
E2
P0
P1
P2
T
10.50
±0.10
2.70
±0.10
1.50
+0.10
1.50
Min.
16.00
±0.10
1.75
±0.10
7.50
±0.10
8.00
±0.10
4.00
±0.10
2.00
±0.10
0.30
±0.05
Reel
T
S
G
K
M
N
V
H
R
W
UNIT: mm
Tape Size Reel Size
M
N
16mm
ø330
ø330.00 ø99.50
±0.5
±1.0
W
17.50
±0.50
T
H
2.30 ø13.50
+0.10
K
10.60
S
2.5
±0.10
G
—
R
—
V
—
Leader / Trailer
& Orientation
Trailer Tape
300mm min.
or 75 empty pockets
Rev. 1.1 September 2008
Components Tape
Orientation in Pocket
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Leader Tape
500mm min.,
or 125 empty pockets
Page 7 of 8
AOZ1117
Part Marking
1 1 1 7 T I 33
Part Number Code
Underline Denotes Green Product
BA8612
1
3
Alpha & Omega Semiconductor reserves the right to make changes at any time without notice.
LIFE SUPPORT POLICY
ALPHA & OMEGA SEMICONDUCTOR PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL
COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body or (b) support or sustain life, and (c) whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of
the user.
Rev. 1.1 September 2008
2. A critical component in any component of a life
support, device, or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
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Page 8 of 8