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PDF AZ1084 Fiche technique - Diodes

Numéro de référence AZ1084
Description 5A LOW DROPOUT LINEAR REGULATOR
Fabricant Diodes 
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AZ1084 Datasheet, Description
A Product Line of
Diodes Incorporated
AZ1084
5A LOW DROPOUT LINEAR REGULATOR
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 provides 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, 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 TO263, TO-
263-2, TO-220-3, TO-252-2 (3), TO-252-2 (4) and TO-252-2 (5).
Features
Low Dropout Voltage: 1.3V Typical at 5A
Current Limiting and Thermal Protection
Output Current: 5A
Current Limit: 6.5A
Operating Junction Temperature Range: 0 to +125°C
Line Regulation (Adj Version): 0.015% (Typical)
Load Regulation (Adj Version): 0.1% (Typical)
Lead-Free Packages: TO263, TO-263-2, TO-220-3, TO-252-2 (3),
TO-252-2 (4), TO-252-2 (5)
Totally Lead-Free; RoHS Compliant (Notes 1 & 2)
Lead-Free Packages, Available in “Green” Molding Compound:
TO263, TO-263-2, TO-220-3, TO-252-2 (3), TO-252-2 (4), TO-
252-2 (5)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
High Efficiency Linear Regulators
Battery Chargers
Post Regulation for Switching Supply
Microprocessor Supply
Desktop PCs, RISC and Embedded Processors' Supply
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Pin Assignments
S Package
(TO263)
S2 Package
(TO-263-2)
D Package
(TO-252-2 (3) (Option 1))
3 INPUT
2 OUTPUT
1 ADJ/GND
3 INPUT
2 OUTPUT(TAB)
1 ADJ/GND
3 INPUT
2 OUTPUT
1 ADJ/GND
(TO-252-2 (3) (Option 2))
D Packages
(TO-252-2 (4))
(TO-252-2 (5))
3 INPUT
2 OUTPUT
1 ADJ/GND
AZ1084
Document number: DS36598 Rev. 3 - 2
3 INPUT
2 OUTPUT
1 ADJ/GND
1 of 22
www.diodes.com
3 INPUT
2 OUTPUT
1 ADJ/GND
October 2013
© Diodes Incorporated
AZ1084 Fiche technique
Functional Block Diagram
A Product Line of
Diodes Incorporated
AZ1084
Absolute Maximum Ratings (Note 4)
Symbol
TJ
TSTG
TLEAD
θJA
ESD
ESD
Parameter
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
Thermal Resistance (Note 5)
ESD (Human Body Model)
ESD (Machine Model)
Rating
+150
-65 to +150
+260
TO-263-2
TO263
TO-220-3
TO-252-2 (3)/TO-
252-2 (4)/TO-252-2
(5)
2000
400
60
60
60
100
Unit
°C
°C
°C
°C/W
V
V
Notes
4. 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.
5. 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 temperature 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.
AZ1084
Document number: DS36598 Rev. 3 - 2
3 of 22
www.diodes.com
October 2013
© Diodes Incorporated

3 Page

AZ1084 pdf
Typical Performance Characteristics
Dropout Voltage vs. Output Current
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Output Current (A)
Reference Voltage vs. Junction Temperature
1.260
1.258
1.256
1.254
1.252
1.250
1.248
1.246
0
I =10mA
OUT
20 40 60 80 100
Junction Temperature (oC)
120
Adjust Pin Current vs. Junction Temperature
70
69
68
67
66
65
64
0 20 40 60 80 100 120
Junction Temperature (oC)
A Product Line of
Diodes Incorporated
AZ1084
Output Voltage vs. Junction Temperature
2.53
2.52
2.51
2.50
2.49
2.48
2.47
0
25 50 75 100
Junction Temperature (oC)
125
Minimum Load Current vs. Junction Temperature
0.60
0.59
0.58
0.57
0.56
0.55
0.54
0.53
0.52
0.51
0.50
0
25 50 75 100
Junction Temperature (0C)
125
Power Dissipation vs. Case Temperature
30
Package: TO-220-3
No Heatsink
25
20
15
10
5
0 20 40 60 80 100 120
Case Temperature (oC)
AZ1084
Document number: DS36598 Rev. 3 - 2
6 of 22
www.diodes.com
October 2013
© Diodes Incorporated

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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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