Data Sheet
1A LOW DROPOUT LINEAR REGULATOR
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 (1) and TO-
263-3 power packages.
AZ1117
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 (1)
TO-263-3
Figure 1. Package Types of AZ1117
Mar. 2007 Rev. 2. 0
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BCD Semiconductor Manufacturing Limited
Data Sheet
1A LOW DROPOUT LINEAR REGULATOR
Functional Block Diagram
3
AZ1117
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
Mar. 2007 Rev. 2. 0
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BCD Semiconductor Manufacturing Limited
Data Sheet
1A LOW DROPOUT LINEAR REGULATOR
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 (1)
-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
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.
Mar. 2007 Rev. 2. 0
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BCD Semiconductor Manufacturing Limited