Data Sheet
1A LOW DROPOUT LINEAR REGULATOR
CURRENT MODE PWM CONTROLLER
General Description
The AZ1117 is a series of low dropout three-terminal
regulators with a dropout of 1.15V at 1A output cur-
rent.
The AZ1117 series provides current limiting and ther-
mal 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 shut-
down provides protection against any combination of
overload and ambient temperature that would create
excessive junction temperature.
The AZ1117 has an adjustable version, that can pro-
vide the output voltage from 1.25V to 12V with only 2
external resistors.
The AZ1117 series is available in the industry standard
SOT-223, SOT-89-3, TO-220-3, TO-252-2 and TO-
263-3 power packages.
AZ1117
AZ2842/3/4/5
Features
·
·
·
·
·
Low Dropout Voltage: 1.15V at 1A Output Cur-
rent
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
Applications
·
·
·
·
·
·
·
·
PC Motherboard
LCD Monitor
Graphic Card
DVD-video Player
NIC/Switch
Telecom Equipment
ADSL Modem
Printer and other Peripheral Equipment
SOT-223
SOT-89-3
TO-220-3
TO-252-2
TO-263-3
Figure 1. Package Types of AZ1117
Oct. 2005 Rev. 1. 7
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BCD Semiconductor Manufacturing Limited
Data Sheet
1A LOW DROPOUT LINEAR REGULATOR
CURRENT MODE PWM CONTROLLER
Pin Configuration
H Package
(SOT-223)
R Package
(SOT-89-3)
AZ1117
AZ2842/3/4/5
3
3
V
OUT
2
1
INPUT
OUTPUT
ADJ/GND
1
V
OUT
2
INPUT
OUTPUT
ADJ/GND
T Package
(TO-220-3)
D Package
(TO-252-2)
3
INPUT
3
V
OUT
2
1
INPUT
OUTPUT
ADJ/GND
V
OUT
2
OUTPUT
1
ADJ/GND
S Package
(TO-263-3)
3
V
OUT
2
1
INPUT
OUTPUT
ADJ/GND
Figure 2. Pin Configuration of AZ1117
Oct. 2005 Rev. 1. 7
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BCD Semiconductor Manufacturing Limited
Data Sheet
1A LOW DROPOUT LINEAR REGULATOR
CURRENT MODE PWM CONTROLLER
Functional Block Diagram
3
AZ1117
AZ2842/3/4/5
INPUT
Thermal
Protection
-
+
2
OUTPUT
For Adjustable Output, disconnect A1 and A2, connect B
For Fixed Output, connect A1 and A2, disconnect B
A1
A2
1
ADJ/GND
B
Figure 3. Functional Block Diagram of AZ1117
Oct. 2005 Rev. 1. 7
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BCD Semiconductor Manufacturing Limited
Data Sheet
1A LOW DROPOUT LINEAR REGULATOR
CURRENT MODE PWM CONTROLLER
Ordering Information
AZ1117
Circuit Type
Package
-
E1: Lead Free
AZ1117
AZ2842/3/4/5
Blank: Tin Lead
TR: Tape and Reel
H: SOT-223
D: TO-252-2
R: SOT-89-3 S: TO-263-3
T: TO-220-3
Blank: Tube
ADJ: Adjustable Output
1.2: Fixed Output 1.2V
1.5: Fixed Output 1.5V
1.8: Fixed Output 1.8V
2.5: Fixed Output 2.5V
2.85: Fixed Output 2.85V
3.3: Fixed Output 3.3V
5.0: Fixed Output 5.0V
Marking ID
Tin Lead
Lead Free
H11A
H18A
H12A
H13A
H14A
H15A
H16A
H17A
R17A
R17G
R17B
R17C
R17D
R17H
R17E
R17F
AZ1117T-ADJ
AZ1117T-1.2
AZ1117T-1.5
AZ1117T-1.8
AZ1117T-2.5
AZ1117T-2.85
AZ1117T-3.3
AZ1117T-5.0
EH11A
EH18A
EH12A
EH13A
EH14A
EH15A
EH16A
EH17A
E17A
E17G
E17B
E17C
E17D
E17H
E17E
E17F
AZ1117T-ADJE1
AZ1117T-1.2E1
AZ1117T-1.5E1
AZ1117T-1.8E1
AZ1117T-2.5E1
AZ1117T-2.85E1
AZ1117T-3.3E1
AZ1117T-5.0E1
Package
Tempera-
ture Range
Part Number
Tin Lead
Lead Free
AZ1117H-ADJTR
AZ1117H-1.2TR
AZ1117H-1.5TR
AZ1117H-1.8TR
AZ1117H-2.5TR
AZ1117H-2.85TR
AZ1117H-3.3TR
AZ1117H-5.0TR
AZ1117R-ADJTR
AZ1117R-1.2TR
AZ1117R-1.5TR
AZ1117R-1.8TR
AZ1117R-2.5TR
AZ1117R-2.85TR
AZ1117R-3.3TR
AZ1117R-5.0TR
AZ1117T-ADJ
AZ1117T-1.2
AZ1117T-1.5
AZ1117T-1.8
AZ1117T-2.5
AZ1117T-2.85
AZ1117T-3.3
AZ1117T-5.0
AZ1117H-ADJTRE1
AZ1117H-1.2TRE1
AZ1117H-1.5TRE1
AZ1117H-1.8TRE1
AZ1117H-2.5TRE1
AZ1117H-2.85TRE1
AZ1117H-3.3TRE1
AZ1117H-5.0TRE1
AZ1117R-ADJTRE1
AZ1117R-1.2TRE1
AZ1117R-1.5TRE1
AZ1117R-1.8TRE1
AZ1117R-2.5TRE1
AZ1117R-2.85TRE1
AZ1117R-3.3TRE1
AZ1117R-5.0TRE1
AZ1117T-ADJE1
AZ1117T-1.2E1
AZ1117T-1.5E1
AZ1117T-1.8E1
AZ1117T-2.5E1
AZ1117T-2.85E1
AZ1117T-3.3E1
AZ1117T-5.0E1
Packing
Type
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tube
Tube
Tube
Tube
Tube
Tube
Tube
Tube
SOT-223
-40 to 125
o
C
SOT-89-3
-40 to 125
o
C
TO-220-3
-40 to 125
o
C
Oct. 2005 Rev. 1. 7
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BCD Semiconductor Manufacturing Limited
Data Sheet
1A LOW DROPOUT LINEAR REGULATOR
CURRENT MODE PWM CONTROLLER
Ordering Information (Continued)
Package
Tempera-
ture Range
Part Number
Tin Lead
Lead Free
AZ1117D-ADJ
AZ1117D-ADJTR
AZ1117D-1.2
AZ1117D-1.2TR
AZ1117D-1.5
AZ1117D-1.5TR
AZ1117D-1.8
TO-252-2
-40 to 125
o
C
AZ1117D-1.8TR
AZ1117D-2.5
AZ1117D-2.5TR
AZ1117D-2.85
AZ1117D-2.85TR
AZ1117D-3.3
AZ1117D-3.3TR
AZ1117D-5.0
AZ1117D-5.0TR
AZ1117S-ADJ
AZ1117S-ADJTR
AZ1117S-1.2
AZ1117S-1.2TR
AZ1117S-1.5
AZ1117S-1.5TR
AZ1117S-1.8
TO-263-3
-40 to 125
o
C
AZ1117S-1.8TR
AZ1117S-2.5
AZ1117S-2.5TR
AZ1117S-2.85
AZ1117S-2.85TR
AZ1117S-3.3
AZ1117S-3.3TR
AZ1117S-5.0
AZ1117S-5.0TR
AZ1117D-ADJE1
AZ1117D-ADJTRE1
AZ1117D-1.2E1
AZ1117D-1.2TRE1
AZ1117D-1.5E1
AZ1117D-1.5TRE1
AZ1117D-1.8E1
AZ1117D-1.8TRE1
AZ1117D-2.5E1
AZ1117D-2.5TRE1
AZ1117D-2.85E1
AZ1117D-2.85TRE1
AZ1117D-3.3E1
AZ1117D-3.3TRE1
AZ1117D-5.0E1
AZ1117D-5.0TRE1
AZ1117S-ADJE1
AZ1117S-ADJTRE1
AZ1117S-1.2E1
AZ1117S-1.2TRE1
AZ1117S-1.5E1
AZ1117S-1.5TRE1
AZ1117S-1.8E1
AZ1117S-1.8TRE1
AZ1117S-2.5E1
AZ1117S-2.5TRE1
AZ1117S-2.85E1
AZ1117S-2.85TRE1
AZ1117S-3.3E1
AZ1117S-3.3TRE1
AZ1117S-5.0E1
AZ1117S-5.0TRE1
AZ1117
AZ2842/3/4/5
Marking ID
Tin Lead
Lead Free
AZ1117D-ADJ
AZ1117D-ADJ
AZ1117D-1.2
AZ1117D-1.2
AZ1117D-1.5
AZ1117D-1.5
AZ1117D-1.8
AZ1117D-1.8
AZ1117D-2.5
AZ1117D-2.5
AZ1117D-2.85
AZ1117D-2.85
AZ1117D-3.3
AZ1117D-3.3
AZ1117D-5.0
AZ1117D-5.0
AZ1117S-ADJ
AZ1117S-ADJ
AZ1117S-1.2
AZ1117S-1.2
AZ1117S-1.5
AZ1117S-1.5
AZ1117S-1.8
AZ1117S-1.8
AZ1117S-2.5
AZ1117S-2.5
AZ1117S-2.85
AZ1117S-2.85
AZ1117S-3.3
AZ1117S-3.3
AZ1117S-5.0
AZ1117S-5.0
AZ1117D-ADJE1
AZ1117D-ADJE1
AZ1117D-1.2E1
AZ1117D-1.2E1
AZ1117D-1.5E1
AZ1117D-1.5E1
AZ1117D-1.8E1
AZ1117D-1.8E1
AZ1117D-2.5E1
AZ1117D-2.5E1
AZ1117D-2.85E1
AZ1117D-2.85E1
AZ1117D-3.3E1
AZ1117D-3.3E1
AZ1117D-5.0E1
AZ1117D-5.0E1
AZ1117S-ADJE1
AZ1117S-ADJE1
AZ1117S-1.2E1
AZ1117S-1.2E1
AZ1117S-1.5E1
AZ1117S-1.5E1
AZ1117S-1.8E1
AZ1117S-1.8E1
AZ1117S-2.5E1
AZ1117S-2.5E1
AZ1117S-2.85E1
AZ1117S-2.85E1
AZ1117S-3.3E1
AZ1117S-3.3E1
AZ1117S-5.0E1
AZ1117S-5.0E1
Packing
Type
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Oct. 2005 Rev. 1. 7
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BCD Semiconductor Manufacturing Limited
