AZ1117C
LOW DROPOUT LINEAR REGULATOR
Description
The AZ1117C is a low dropout three-terminal regulator.
The AZ1117C has been optimized for low voltage where transient
response and minimum input voltage are critical. It provides current
limit and thermal shutdown. Its circuit includes a trimmed bandgap
reference to assure output voltage accuracy to be within ±1%. On-
chip thermal shutdown provides protection against a combination of
high current and ambient temperature that would create excessive
junction temperature.
The AZ1117C is available in 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V fixed
output voltage versions and ADJ output voltage version. The fixed
versions integrate the adjust resistors. It is also available in an
adjustable version which can set the output voltage with two external
resistors.
The AZ1117C is available in the industry-standard TO252-2 Series
(including TO252-2 (3), TO252-2 (4), and TO252-2 (5)), SOT89 and
SOT223 power packages.
Features
Current Limit: 1.35A (Typ)
Output Noise from 10Hz to 10kHz: 0.003% of V
OUT
PSRR at I
OUT
= 300mA and f = 120Hz: 70dB
Output Voltage Accuracy: ±1% (Except 1.2V Version)
On-chip Thermal Shutdown
Maximum Quiescent Current: I
QMAX
= 6mA
Compatible with Low ESR Ceramic Capacitor
Operation Junction Temperature: -20° to +125°
C
C
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
USB Device
Add-on Card
DVD Player
PC Motherboard
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.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Pin Assignments
(Top View)
3
2
1
INPUT
OUTPUT
ADJ/GND
(Top View)
3
2
1
INPUT
OUTPUT
ADJ/GND
TO252-2 (3) Option 1
(Top View)
3
VOUT
INPUT
OUTPUT
TO252-2 (3) Option 2
(Top View)
3
2
1
INPUT
OUTPUT
ADJ/GND
2
1
ADJ
/
GND
TO252-2 (4)
TO252-2 (5)
AZ1117C
Document number: DS36676 Rev. 4 - 2
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January 2019
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AZ1117C
Pin Assignments
(Cont.)
(Top View)
(Top View)
3
VOUT
INPUT
3
INPUT
2
1
OUTPUT
VOUT
2
OUTPUT
ADJ/GND
1
ADJ/GND
SOT89 Option 1/ R Package
SOT89 Option 2/ R Package
(Top View)
3
VIN
OUTPUT
(Top View)
3
OUTPUT
2
1
INPUT
VIN
2
INPUT
ADJ/GND
1
ADJ/GND
SOT89 Option 1/ R2 Package
SOT89 Option 2/ R2 Package
(Top View)
3
VOUT
INPUT
OUTPUT
ADJ/GND
(Top View)
3
OUTPUT
ADJ/GND
INPUT
2
1
ADJ/GND
2
1
SOT223/ H Package
SOT223/ H2 Package
AZ1117C
Document number: DS36676 Rev. 4 - 2
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January 2019
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AZ1117C
Typical Applications Circuit
(Note 4)
AZ1117C-ADJ
INPUT
10µF
OUTPUT
ADJ
R1
124Ω
22µF
V
IN
=11V
9V
R2
768Ω
V
OUT
=V
REF
* (1+R2/R1)+I
ADJ
*R2
V
IN
=5.3V
10µF
AZ1117C-3.3
INPUT
OUTPUT
GND
22µF
3.3V
Note 4:
The AZ1117C is compatible with low ESR ceramic capacitor.
The ESR of the output capacitors must be less than 20Ω.
A minimum of 10µF output capacitor is required.
Functional Block Diagram
3(2){1}
INPUT
Thermal
Protection
-
+
OUTPUT
2(3){3}
For Adjustable Output, disconnect A1 and A2, connect B
For Fixed Output, connect A1 and A2, disconnect B
A1
A2
1(1){2}
ADJ/GND
B
A(B){C}
A for TO252-2 Series/SOT223 (H)/SOT89 (R)
B for SOT89 (R2)
C for SOT223 (H2)
AZ1117C
Document number: DS36676 Rev. 4 - 2
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January 2019
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AZ1117C
Absolute Maximum Ratings
(Note 5)
Symbol
V
IN
T
J
T
STG
θ
JA
Input Voltage
Operating Junction Temperature Range
Storage Temperature Range
Thermal Resistance (Without Heatsink)
SOT89
SOT223
TO252-2 Series
SOT89
SOT223
TO252-2 Series
+260
4000
Parameter
Rating
18
+150
-65 to +150
170
125
100
150
100
70
Unit
V
°
C
°
C
°
C/W
θ
JA
T
LEAD
—
Notes:
Thermal Resistance (With Heatsink) (Note 6)
Lead Temperature (Soldering, 10sec)
ESD (Human Body Model)
°
C/W
°
C
V
5. 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.
6. Chip is soldered to 100mm
2
(10mm*10mm) copper (top side solder mask) on 2oz.2 layers FR-4 PCB with 8*0.5mm vias.
Recommended Operating Conditions
Symbol
V
IN
T
J
Input Voltage
Operating Junction Temperature Range
Parameter
Min
—
-20
Max
15
+125
Unit
V
°
C
Electrical Characteristics AZ1117C-ADJ
(Operating Conditions: V
IN
= V
OUT
+2V, I
OUT
= 10mA, T
J
= +25° unless otherwise specified. (P ≤ maximum power dissipation). Limits appearing
C,
in
Boldface
type apply over the entire junction temperature range for operation, -20° to +125°
C
C.)
Symbol
V
REF
V
RLINE
V
RLOAD
V
DROP
I
LIMIT
—
—
—
PSRR
—
—
—
—
θ
JC
Parameter
Reference Voltage
Line Regulation
Load Regulation
Dropout Voltage
Current Limit
Adjust Pin Current
Adjust Pin Current Change
Minimum Load Current
Ripple Rejection
Temperature Stability
RMS Output Noise (% of V
OUT
)
Thermal Shutdown
Thermal Shutdown Hysteresis
Thermal Resistance
(Junction to Case)
∆V
REF
= 1%,
I
OUT
= 0.8A
—
—
1.5 ≤ (V
IN
-V
OUT
) ≤ 10V
1.5 ≤ (V
IN
-V
OUT
) ≤ 10V
f = 120Hz, C
OUT
= 22µF
(V
IN
-V
OUT
) = 3V, I
OUT
= 300mA
—
T
A
= +25° 10Hz ≤ f ≤ 10kHz
C,
Junction Temperature
—
SOT89
SOT223
TO252-2 Series
Conditions
1.5V ≤ V
IN
-V
OUT
≤ 10V
1.5V ≤ V
IN
-V
OUT
≤ 10V
—
SOT223
TO252-2 Series
Min
1.238
1.225
—
—
—
—
—
1
—
—
—
—
—
—
—
—
—
—
—
Typ
1.250
1.250
0.001
—
0.4
1.2
1.3
1.35
60
0.2
1.7
70
0.5
0.003
+160
+16
30
15
10
Max
1.262
1.270
0.1
0.2
1.0
1.3
1.4
—
120
5
5
—
—
—
—
—
—
—
—
Unit
V
%
%
V
V
A
µA
µA
mA
dB
%
%
°
C
°
C
°
C/W
AZ1117C
Document number: DS36676 Rev. 4 - 2
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January 2019
© Diodes Incorporated
AZ1117C
Electrical Characteristics AZ1117C-1.2
(Cont.)
(Operating Conditions: V
IN
≤ 10V, I
OUT
= 10mA, T
J
= +25° unless otherwise specified. (P ≤ maximum power dissipation). Limits appearing in
C,
Boldface
type apply over the entire junction temperature range for operation, -20° to +125°
C
C.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V
OUT
V
RLINE
V
RLOAD
V
DROP
I
LIMIT
I
Q
PSRR
—
—
—
—
θ
JC
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
Current Limit
Quiescent Current
Ripple Rejection
Temperature Stability
RMS Output Noise (% of V
OUT
)
Thermal Shutdown
Thermal Shutdown Hysteresis
Thermal Resistance
(Junction to Case)
I
OUT
= 0
f = 120Hz, C
OUT
= 22µF
(V
IN
-V
OUT
) = 3V, I
OUT
= 300mA
—
T
A
= +25° 10Hz ≤ f ≤ 10kHz
C,
Junction Temperature
—
SOT89
SOT223
TO252-2 Series
∆V
OUT
= 1%,
I
OUT
= 0.8A
—
1.5V ≤ V
IN
-V
OUT
≤ 10V
1.5V ≤ V
IN
-V
OUT
≤ 10V
—
SOT223
TO252-2 Series
1.176
1.152
—
—
—
—
—
1
—
—
—
—
—
—
—
—
—
1.2
1.2
0.5
—
2
1.2
1.3
1.35
4
70
0.5
0.003
+160
+16
30
15
10
1.224
1.228
6
10
15
1.3
1.4
—
6
—
—
—
—
—
—
—
—
V
mV
mV
V
V
A
mA
dB
%
%
°
C
°
C
°
C/W
Electrical Characteristics AZ1117C-1.5
(Cont.)
(Operating Conditions: V
IN
≤ 10V, I
OUT
= 10mA, T
J
= +25° unless otherwise specified. (P ≤ maximum power dissipation). Limits appearing in
C,
Boldface
type apply over the entire junction temperature range for operation, -20° to +125°
C
C.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
1.485
1.5
1.515
Output Voltage
V
V
OUT
1.5V ≤ V
IN
-V
OUT
≤ 10V
1.470
1.530
1.5
—
0.5
6
Line Regulation
mV
V
RLINE
1.5V ≤ V
IN
-V
OUT
≤ 10V
10
—
—
V
RLOAD
V
DROP
I
LIMIT
I
Q
PSRR
—
—
—
—
θ
JC
Load Regulation
Dropout Voltage
Current Limit
Quiescent Current
Ripple Rejection
Temperature Stability
RMS Output Noise (% of V
OUT
)
Thermal Shutdown
Thermal Shutdown Hysteresis
Thermal Resistance
(Junction to Case)
I
OUT
= 0
f = 120Hz, C
OUT
= 22µF
(V
IN
-V
OUT
) = 3V, I
OUT
= 300mA
—
T
A
= +25° 10Hz ≤ f ≤ 10kHz
C,
Junction Temperature
—
SOT89
SOT223
TO252-2 Series
∆V
OUT
= 1%,
I
OUT
= 0.8A
—
—
SOT223
TO252-2 Series
—
—
—
1
—
—
—
—
—
—
—
—
—
2
1.2
1.3
1.35
4
70
0.5
0.003
+160
+16
30
15
10
15
1.3
1.4
—
6
—
—
—
—
—
—
—
—
mV
V
V
A
mA
dB
%
%
°
C
°
C
°
C/W
AZ1117C
Document number: DS36676 Rev. 4 - 2
5 of 23
www.diodes.com
January 2019
© Diodes Incorporated
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