Pb
Lead-Free
A Product Line of
Diodes Incorporated
AZ1117
1A LOW DROPOUT LINEAR REGULATOR
Description
The AZ1117 is a series of low dropout three-terminal regulators with a
dropout of 1.15V at 1A output current.
The AZ1117 series provides current limiting and thermal shutdown.
Its circuit includes a trimmed bandgap reference to assure output
voltage accuracy to be within 1% for 1.5V, 1.8V, 2.5V, 2.85V, 3.3V,
5.0V and adjustable versions or 2% for 1.2V version. Current limit is
trimmed to ensure specified output current and controlled short-circuit
current. On-chip thermal shutdown provides protection against any
combination of overload and ambient temperature that would create
excessive junction temperature.
The AZ1117 has an adjustable version, which can provide the output
voltage from 1.25V to 12V with only 2 external resistors.
The AZ1117 series is available in the industry standard SOT223,
SOT89, TO220-3, TO252-2 (3), TO252-2 (4), TO252-2 (5) and TO263
power packages.
Features
Low Dropout Voltage: 1.15V at 1A Output Current
Trimmed Current Limit
On-chip Thermal Shutdown
Three-terminal Adjustable or Fixed 1.2V, 1.5V, 1.8V, 2.5V, 2.85V,
3.3V, 5.0V
Operation Junction Temperature: -40 to +125
o
C
Lead-Free Packages: SOT223, SOT89, TO220-3, TO252-2 (3),
TO252-2 (4), TO252-2 (5), TO263
Totally Lead-Free; RoHS Compliant (Notes 1 & 2)
Applications
PC Motherboard
LCD Monitor
Graphic Card
DVD-video Player
NIC/Switch
Telecom Equipment
ADSL Modem
Printer and other Peripheral Equipment
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
Pin Assignments
(Top View)
(Top View)
(Top View)
3
VOUT
2
1
INPUT
OUTPUT
ADJ/GND
3
VOUT
INPUT
3
INPUT
2
1
OUTPUT
VOUT
2
OUTPUT
ADJ/GND
1
ADJ/GND
(SOT223/ H Package)
(SOT89 Option 1/ R Package)
(SOT89 Option 2/ R Package)
AZ1117
Document number: DS36736 Rev. 3 - 2
1 of 32
www.diodes.com
February 2014
© Diodes Incorporated
A Product Line of
Diodes Incorporated
AZ1117
Absolute Maximum Ratings
(Note 3)
Parameter
Input Voltage
Operating Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10sec)
Symbol
V
IN
T
J
T
S
T
LEAD
SOT223
SOT89
Thermal Resistance (No Heatsink, Note 4)
θ
JA
TO220-3
TO252-2
(3)/TO252-2
(4)/TO252-2 (5)
TO263
ESD (Human Body Model)
ESD (Machine Model)
Notes:
Value
20
+150
-65 to +150
+260
120
165
60
100
60
2000
250
Unit
V
º
C
º
C
º
C
o
C/W
ESD
ESD
V
V
3. Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied.
Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.
4. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the
device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, T
J(max),
the
junction-to-ambient thermal resistance, θ
JA,
and the ambient temperature, T
A.
The maximum allowable power dissipation at any ambient temperature is
calculated using: P
D(max)
= (T
J(max)
-T
A
)/θ
JA.
Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the
regulator will go into thermal shutdown.
Recommended Operating Conditions
Parameter
Input Voltage
Operating Junction Temperature Range
Symbol
V
IN
T
J
Min
–
-40
Max
15
+125
Unit
V
º
C
AZ1117
Document number: DS36736 Rev. 3 - 2
4 of 32
www.diodes.com
February 2014
© Diodes Incorporated
A Product Line of
Diodes Incorporated
AZ1117
Electrical Characteristics
AZ1117-ADJ Electrical Characteristics
(Operating Conditions: V
IN
≤ 10V, T
J
= +25º unless otherwise specified.)
C,
Parameter
Reference Voltage
Line Regulation
Load Regulation
Symbol
V
REF
∆V
OUT
∆V
OUT
Conditions
I
OUT
= 10mA, V
IN
-V
OUT
= 2V
10mA ≤ I
OUT
≤ 1A, 1.4V ≤ V
IN
-V
OUT
≤ 8V,
P ≤ Maximum Power Dissipation
I
OUT
=10mA, 1.5V ≤ V
IN
-V
OUT
≤ 10V
V
IN
-V
OUT
= 2V, 10mA ≤ I
OUT
≤ 1A
∆V
REF
= 1%, I
OUT
= 0.1A
Dropout Voltage
V
DROP
∆V
REF
= 1%, I
OUT
= 0.5A
∆V
REF
= 1%, I
OUT
= 1.0A
Current Limit
Adjust Pin Current
Adjust Pin Current Change
Minimum Load Current (ADJ)
Quiescent Current
Ripple Rejection
Temperature Stability
Long-term Stability
RMS Output Noise (% of V
OUT
)
Thermal Shutdown
Thermal Shutdown Hysteresis
I
LIMIT
I
ADJ
∆I
ADJ
I
LOAD
(MIN)
I
Q
PSRR
–
–
–
–
–
V
IN
-V
OUT
= 2V
–
1.4V ≤ V
IN
-V
OUT
≤ 10V, 10mA ≤ I
OUT
≤ 1A
1.5V ≤ V
IN
-V
OUT
≤ 10V (ADJ only)
V
IN
= V
OUT
+ 1.25V
f = 120Hz, C
OUT
= 22µF Tantalum,
V
IN
-V
OUT
= 3V, I
OUT
= 1A
–
T
A
= +125º 1000hrs
C,
T
A
= +25º 10Hz ≤ f ≤ 10kHz
C,
Junction Temperature
–
SOT223
SOT89
Thermal Resistance
θ
JC
TO220-3
TO252-2 (3)/TO252-2 (4)/TO252-2 (5)
TO263
Min
1.238
1.225
–
–
–
–
–
1.25
–
–
–
–
60
–
–
–
–
–
–
–
–
–
–
Typ
1.250
1.250
0.035
0.2
1.00
1.08
1.15
1.35
60
0.2
1.7
5
75
0.5
0.3
0.003
+150
+25
25
30
10
17
10
Max
1.262
1.270
0.2
0.4
1.1
1.18
1.25
–
120
5
5
10
–
–
–
–
–
–
–
–
–
–
–
º
C/W
Unit
V
%
%
V
V
V
A
µA
µA
mA
mA
dB
%
%
%
º
C
º
C
AZ1117
Document number: DS36736 Rev. 3 - 2
5 of 32
www.diodes.com
February 2014
© Diodes Incorporated
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