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PDF AZ1085C Fiche technique - BCD Semiconductor

Numéro de référence AZ1085C
Description 3A LOW DROPOUT LINEAR REGULATOR
Fabricant BCD Semiconductor 
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AZ1085C Datasheet, Description
3A LOW DROPOUT LINEAR REGULATOR
General Description
Features
Data Sheet
AZ1085C
The AZ1085C is a series of low dropout positive volt-
age regulators with a maximum dropout of 1.5V at 3A
of load current.
The series features on-chip thermal shutdown. It also
includes a bandgap reference and a current limiting cir-
cuit.
The AZ1085C is available in 1.5V, 1.8V, 2.5V, 3.3V,
5.0V and adjustable versions. The fixed versions inte-
grate the adjust resistors. The adjustable version can
set the output voltage with two external resistors.
The AZ1085C 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: Typical 1.3V at 3A
· Current Limiting and Thermal Protection
· Output Current: 3A
· Current Limit: 4.5A
· Operating Junction Temperature: 0 to 125oC
· Compatible with Low ESR Ceramic Capacitor
· Line Regulation: 0.015% (Typ)
· Load Regulation: 0.1% (Typ)
Applications
· High Efficiency Linear Regulators
· Battery Charger
· Post Regulation for Switching Supplies
· Microprocessor Supply
· Mother Board Power Supplies
· DVD-Video Player
· Telecom Equipment
· Set Top boxes and Web Boxes Modules' Supply
TO-263-3
TO-263-2
TO-252-2 (3)
TO-252-2 (4)
Figure 1. Package Types of AZ1085C
Nov. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
1
AZ1085C Fiche technique
3A LOW DROPOUT LINEAR REGULATOR
Functional Block Diagram
Data Sheet
AZ1085C
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 AZ1085C
Nov. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
3

3 Page

AZ1085C pdf
3A LOW DROPOUT LINEAR REGULATOR
Absolute Maximum Ratings (Note 1)
Data Sheet
AZ1085C
Parameter
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10sec)
Thermal Resistance(Note 2)
ESD (Human Body Model)
Symbol
TJ
TSTG
TLEAD
θJA
ESD
Value
150
-65 to 150
260
TO-263-3
TO-263-2
TO-252-2 (3)/TO-252-2 (4)
2000
75
75
100
Unit
oC
oC
oC
oC/W
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 Max-
imum 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
Symbol
Min
Max
Unit
Input Voltage
VIN 12 V
Operating Junction Temperature Range
TJ
0 125 oC
Nov. 2011 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
6

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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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