Data Sheet
5A LOW DROPOUT LINEAR REGULATOR
General Description
The AZ1084 is a series of low dropout positive voltage
regulators with a maximum dropout of 1.5V at 5A of
load current.
The series features on-chip thermal limiting which pro-
vides protection against any combination of overload
and ambient temperatures that would create excessive
junction temperatures. It also includes a trimmed band-
gap reference and a current limiting circuit.
The AZ1084 is available in 1.5V, 1.8V, 2.5V, 2.85V,
3.3V and 5.0V versions. 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 AZ1084 series is available in standard packages of
TO-263-2, TO-263-3, TO-220 and TO-252.
AZ1084
Features
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Low Dropout Voltage: 1.3V Typically at 5A
Current Limiting and Thermal Protection
Output Current: 5A
Current Limit: 6.5A
Operating Junction Temperature Range:
0 to 125
o
C
Line Regulation: 0.015% (Typical)
Load Regulation: 0.2% (Typical)
Applications
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High Efficiency Linear Regulators
Battery Chargers
Post Regulation for Switching Supply
Microprocessor Supply
Desktop PCs, RISC and Embedded Processors'
Supply
TO-263-3
TO-263-2
TO-252
TO-220
Figure 1. Package Types of AZ1084
Oct. 2005 Rev. 1. 2
1
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
