Data Sheet
1A LOW DROPOUT LINEAR REGULATOR
AZ1117
General Description
Features
The AZ1117 is a series of low dropout three-terminal
regulators with a dropout of 1.15V at 1A output current.
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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%. Current limit is trimmed to ensure specified
output current and controlled short-circuit current. Onchip thermal shutdown provides protection against any
combination of overload and ambient temperature that
would create excessive junction temperature.
The AZ1117 has an adjustable version, that can provide 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, TO-220, TO-252 and TO-263
power packages.
SOT-223
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Low Dropout Voltage: 1.15V at 1A Output Current
Trimmed Current Limit
On-Chip Thermal Shutdown
Three-Terminal Adjustable or Fixed 1.5V, 1.8V,
2.5V, 3.3V, 5V
Operation Junction Temperature: 0oC to 125oC
Applications
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PC Motherboard
LCD Monitor
Graphic Card
DVD-Video Player
NIC/Switch
Telecom Equipment
ADSL Modem
Printer and other Peripheral Equipment
SOT-89
TO-252
TO-220
TO-263
Figure 1. Package Types of AZ1117
BCD Semiconductor Manufacturing Limited
Dec. 2003 Rev. 1. 2
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