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NOT RECOMMENDED FOR NEW DESIGN
USE AZ1117C or AZ1117I
Pb
Lead-Free
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 +125oC
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) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
Pin Assignments
(Top View)
VOUT
3 INPUT
2 OUTPUT
1 ADJ/GND
(Top View)
(Top View)
VOUT
3 INPUT
2 OUTPUT
1 ADJ/GND
VOUT
3 INPUT
2 OUTPUT
1 ADJ/GND
SOT223
SOT89 (Option 1)
SOT89 (Option 2)
AZ1117
Document number: DS36736 Rev. 5 - 3
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January 2019
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NOT RECOMMENDED FOR NEW DESIGN
USE AZ1117C or AZ1117I
AZ1117
Pin Assignments (Cont.)
(Top View)
(Top View)
VOUT
VOUT
3
2
1
TO220-3 (Option 1)
(Top View)
3
2
1
TO220-3 (Option 3)
(Top View)
INPUT
OUTPUT
ADJ/GND
VOUT
3 INPUT
2 OUTPUT
1 ADJ/GND
TO220-3 (Option 2)
(Top View)
INPUT
OUTPUT
ADJ/GND
VOUT
3 INPUT
2 OUTPUT
1 ADJ/GND
TO263
(Top View)
VOUT
3 INPUT
2 OUTPUT
1 ADJ/GND
TO252-2 (3) (Option 1)
(Top View)
VOUT
3 INPUT
2 OUTPUT
1 ADJ / GND
TO252-2 (4)
VOUT
3 INPUT
2 OUTPUT
1 ADJ/GND
TO252-2 (3) (Option 2)
(Top View)
VOUT
3
2
1
TO252-2 (5)
INPUT
OUTPUT
ADJ/GND
AZ1117
Document number: DS36736 Rev. 5 - 3
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NOT RECOMMENDED FOR NEW DESIGN
USE AZ1117C or AZ1117I
Typical Applications Circuit
AZ1117
VIN
AZ1117-ADJ
32
INPUT OUTPUT
10µF +
ADJ
1
R1
150
VOUT
+ 22µF
R2
150
VOUT=VREF* (1+R2/R1)+IADJ*R2
VIN=7V
10µF
+
AZ1117-5.0
32
INPUT OUTPUT
GND
1
5V at 1A
+ 22µF
Functional Block Diagram
AZ1117
Document number: DS36736 Rev. 5 - 3
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NOT RECOMMENDED FOR NEW DESIGN
USE AZ1117C or AZ1117I
AZ1117
Absolute Maximum Ratings (Note 3)
Parameter
Input Voltage
Operating Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10sec)
Thermal Resistance (No Heatsink, Note 4)
ESD (Human Body Model)
ESD (Machine Model)
Symbol
VIN
TJ
TS
TLEAD
θJA
ESD
ESD
Value
20
+150
-65 to +150
+260
SOT223
SOT89
TO220-3
TO252-2 (3)
TO252-2 (4)
TO252-2 (5)
TO263
2000
250
120
165
60
100
60
Unit
V
ºC
ºC
ºC
oC/W
V
V
Notes:
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, TJ(max), the junction-
to-ambient thermal resistance, θJA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated
using: PD(max) = (TJ(max)-TA)/θJA. 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
VIN
TJ
Min Max Unit
15 V
-40
+125
ºC
AZ1117
Document number: DS36736 Rev. 5 - 3
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NOT RECOMMENDED FOR NEW DESIGN
USE AZ1117C or AZ1117I
AZ1117
Electrical Characteristics
AZ1117-ADJ Electrical Characteristics (Operating Conditions: VIN 10V, TJ = +25ºC, unless otherwise specified.)
Parameter
Reference Voltage
Line Regulation
Load Regulation
Dropout Voltage
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 VOUT)
Thermal Shutdown
Thermal Shutdown Hysteresis
Thermal Resistance
Symbol
VREF
VOUT
VOUT
VDROP
ILIMIT
IADJ
IADJ
ILOAD(MIN)
IQ
PSRR
θJC
Conditions
IOUT = 10mA, VIN-VOUT = 2V
10mA ≤ IOUT ≤ 1A, 1.4V ≤ VIN-VOUT ≤ 8V,
P ≤ Maximum Power Dissipation
IOUT=10mA, 1.5V ≤ VIN-VOUT ≤ 10V
VIN-VOUT = 2V, 10mA ≤ IOUT ≤ 1A
VREF = 1%, IOUT = 0.1A
VREF = 1%, IOUT = 0.5A
VREF = 1%, IOUT = 1.0A
VIN-VOUT = 2V
1.4V ≤ VIN-VOUT ≤ 10V, 10mA ≤ IOUT ≤ 1A
1.5V ≤ VIN-VOUT ≤ 10V (ADJ only)
VIN = VOUT + 1.25V
f = 120Hz, COUT = 22µF Tantalum,
VIN-VOUT = 3V, IOUT = 1A
TA = +125ºC, 1000hrs
TA = +25ºC, 10Hz ≤ f ≤ 10kHz
Junction Temperature
SOT223
SOT89
TO220-3
TO252-2 (3)/TO252-2 (4)/TO252-2 (5)
TO263
Min
1.238
1.225
1.25
60
Typ Max
1.250
1.250
1.262
1.270
0.035
0.2
1.00
1.08
1.15
1.35
60
0.2
1.7
5
0.2
0.4
1.1
1.18
1.25
120
5
5
10
75
0.5
0.3
0.003
+150
+25
25
30
10
17
10
Unit
V
%
%
V
V
V
A
µA
µA
mA
mA
dB
%
%
%
ºC
ºC
ºC/W
AZ1117
Document number: DS36736 Rev. 5 - 3
5 of 32
www.diodes.com
January 2019
© Diodes Incorporated