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PDF AZ1084C Fiche technique - BCD

Numéro de référence AZ1084C
Description 5A LOW DROPOUT LINEAR REGULATOR
Fabricant BCD 
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AZ1084C Datasheet, Description
5A LOW DROPOUT LINEAR REGULATOR
General Description
Features
Data Sheet
AZ1084C
The AZ1084C is a series of low dropout positive volt-
age 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 AZ1084C is available in 1.5V, 1.8V, 2.5V, 3.3V
and 5.0V versions. The fixed versions integrate the
adjust resistors. It is also available in an adjustable ver-
sion which can set the output voltage with two external
resistors.
The AZ1084C series is available in standard packages
of TO-263-3, TO-263-2, TO-252-2 (3) and TO-252-2
(4).
· Low Dropout Voltage: 1.35V Typical at 5A
· Current Limiting and Thermal Protection
· Output Current: 5A
· Current Limit: 6.5A
· Operating Junction Temperature Range: 0 to
125oC
· Compatible with Low ESR Ceramic Capacitor
· Line Regulation (Adj Version): 0.015% (Typ)
· Load Regulation (Adj Version): 0.1% (Typ)
Applications
· 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
Nov. 2011 Rev. 1. 4
TO-252-2 (3)
TO-252-2 (4)
Figure 1. Package Types of AZ1084C
BCD Semiconductor Manufacturing Limited
1
AZ1084C Fiche technique
5A LOW DROPOUT LINEAR REGULATOR
Functional Block Diagram
Data Sheet
AZ1084C
3 INPUT
A1
B
A2
Thermal
Protection
-
+
For Adjustable Output, disconnect A1 and A2, connect B
For Fixed Output, connect A1 and A2, disconnect B
2 OUTPUT
1 ADJ/
GND
Figure 3. Functional Block Diagram of AZ1084C
Nov. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
3

3 Page

AZ1084C pdf
5A LOW DROPOUT LINEAR REGULATOR
Absolute Maximum Ratings (Note 1)
Data Sheet
AZ1084C
Parameter
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10sec.)
Thermal Resistance (Note 2)
ESD (Human Body Model)
ESD (Machine Model)
Symbol
TJ
TSTG
TLEAD
θJA
ESD
ESD
Value
150
-65 to 150
260
TO-263-2
TO-263-3
TO-252-2 (3)/TO-252-2 (4)
2000
400
60
60
100
Unit
oC
oC
oC
oC/W
V
V
Note 1: 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.
Note 2: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical
specifications do not apply when operating the device outside of its operating ratings. The maximum allowable
power dissipation is a function of the maximum junction temperature, TJ(max), the junction-to-ambient thermal
resistance, θJA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient tem-
perature is calculated using: PD(max)=(TJ(max) -TA)/θJA. Exceeding the maximum allowable power dissipation will
result in excessive die temperature, and the regulator will go into thermal shutdown.
Recommended Operating Conditions
Parameter
Input Voltage
Operating Junction Temperature Range
Symbol
VIN
TJ
Min Max
12
0 125
Unit
V
oC
Nov. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
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Un datasheet est un document fourni par le constructeur du composant, où figurent toutes les données techniques sur le produit: puissance dissipée, courant maximal, tension de seuil, tension de claquage, température de stockage, etc.


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