AZ2085

A Product Line of
Diodes Incorporated
AZ2085
3A LOW DROPOUT LINEAR REGULATOR
Description
Features
The AZ2085 series is low dropout positive voltage regulators with a
maximum dropout of 1.5V at 3A of load current.
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Low Dropout Voltage: Typical 1.2V at 3A
Current Limiting and Thermal Protection
Output Current: 3A
Current Limit: 4.5A
Operating Junction Temperature: 0 to +125°C
Line Regulation: 0.015% (Typ)
Load Regulation: 0.1% (Typ)
Adjust Pin Current: 6μA (Typ)
Minimum Load Current: 0.3mA (Typ)
Compatible with Low ESR Ceramic Capacitor
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)
NEW PRODUCT
The device features on-chip thermal shutdown. It also includes a
bandgap reference and a current limiting circuit.
The AZ2085 is available in adjustable version. The adjustable version
can set the output voltage with two external resistors.
The AZ2085 series is available in standard packages of TO252-2 (3)
and TO252-2 (5).
Applications
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High Efficiency Linear Regulators
Battery Charger
Digital Video/Camcorder
Post Regulation for Switching Supplies
Microprocessor Supply
Mother Board Power Supplies
DVD-video Player
Telecom Equipment
Set Top Boxes and Web Boxes Modules' 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
(Top View)
(Top View)
(Top View)
3
INPUT
3
INPUT
3
INPUT
2
OUTPUT
2
OUTPUT
2
OUTPUT
1
ADJ/GND
1
ADJ/GND
1
ADJ/GND
TO252-2 (3) Option 1
AZ2085
Document number: DS36595 Rev. 3 - 2
TO252-2 (3) Option 2
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TO252-2 (5)
March 2014
© Diodes Incorporated
A Product Line of
Diodes Incorporated
AZ2085
Typical Applications Circuit
VIN
3
AZ2085
INPUT
NEW PRODUCT
CIN=10µF
OUTPUT
VOUT
2
ADJ/GND
1
R1
COUT=22µF
R2
VOUT = VREF * (1+R2/R1 ) + IADJ * R2
Pin Descriptions
Pin Number
Pin Name
1
ADJ/GND
Adjust pin/Ground
2
OUTPUT
Output voltage
3
INPUT
AZ2085
Document number: DS36595 Rev. 3 - 2
Function
Input voltage
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A Product Line of
Diodes Incorporated
AZ2085
Functional Block Diagram
NEW PRODUCT
3
Thermal
Protection
+
2
A1
A2
1
Document number: DS36595 Rev. 3 - 2
OUTPUT
For Adjustable Output, disconnect A1 and A2, connect B
B
AZ2085
INPUT
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ADJ/
GND
March 2014
© Diodes Incorporated
A Product Line of
Diodes Incorporated
AZ2085
Absolute Maximum Ratings (Note 4)
NEW PRODUCT
Symbol
Parameter
VIN
Input Voltage
TJ
Operating Junction Temperature
Rating
Unit
18
V
+150
°C
-65 to +150
°C
TSTG
Storage Temperature Range
TLEAD
Lead Temperature (Soldering, 10sec)
+260
°C
θJA
Thermal Resistance (Junction to Ambient)
100
°C/W
—
ESD (Human Body Model)
2000
V
Note 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.
Recommended Operating Conditions
Symbol
Parameter
Min
Max
Unit
VIN
Input Voltage
—
12
V
TJ
Operating Junction Temperature
0
+125
°C
AZ2085
Document number: DS36595 Rev. 3 - 2
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© Diodes Incorporated
A Product Line of
Diodes Incorporated
AZ2085
Electrical Characteristics
(Typicals and limits appearing in normal type apply for T J = +25ºC. Limits appearing in Boldface type
apply over the entire operating junction temperature range 0 to +125ºC.)
Symbol
Conditions
Min
Typ
Max
Unit
1.238
1.225
1.250
1.250
1.262
1.275
V
Reference Voltage
IOUT = 10mA, VIN-VOUT = 3V, TJ = +25°C,
10mA ≤ IOUT ≤ 3A,
1.5V ≤ VIN-VOUT ≤ 5V
ΔVOUT/VOUT
Load Regulation
0A ≤ IOUT ≤ 3A, VIN-VOUT = 3V
—
0.1
0.2
0.3
0.4
%
ΔVOUT/ΔVIN
Line Regulation
IOUT = 10mA,
2.85V ≤ VIN ≤ 10V
—
0.015
0.035
0.2
0.2
%
VDROP
Dropout Voltage
IOUT = 3A,
ΔVREF, ΔVOUT = 1%
—
1.2
1.5
V
ILIMIT
Current Limit
VIN-VOUT = 3V
3.2
4.5
—
A
ILOAD
Minimum Load Current
VIN = 10V
—
0.3
1
mA
Adjust Pin Current
VIN = 4.25V, IOUT = 10mA
—
6
10
μA
ΔIADJ
Adjust Pin Current Change
10mA ≤ IOUT ≤ 3A, 1.5V ≤ VIN-VOUT ≤ 6V
—
0.3
2
μA
PSRR
Ripple Rejection
fRIPPLE = 120Hz, COUT = 22μF, IOUT = 3A,
VIN-VOUT = 3V
—
72
—
dB
—
Long Term Stability
TA = +125°C, 1000Hrs
—
0.5
—
%
—
Temperature Stability
IOUT = 10mA, VIN-VOUT = 1.5V
—
0.5
—
%
—
RMS Noise (% of VOUT)
TA = +125°C, 10Hz ≤ f ≤ 10kHz
—
0.003
—
%
—
OTSD
—
+130
+150
+170
°C
—
OTSD Hysteresis
—
—
+20
—
°C
—
Pulse Current
Pulse Width ≤ 100μS
—
7
12
A
θJC
Thermal Resistance
(Junction to Case)
—
—
7.36
—
°C/W
VREF
NEW PRODUCT
Parameter
IADJ
AZ2085
Document number: DS36595 Rev. 3 - 2
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A Product Line of
Diodes Incorporated
AZ2085
Ordering Information
AZ2085 X - XX XX XX
NEW PRODUCT
Product Name
Package
Output Voltage
Packing
RoHS/Green
D : TO252-2 (3)/
TO252-2 (5)
ADJ : Adjustable
TR : Tape & Reel
G1 : Green
Diodes IC’s Pb-free products with "G1" suffix in the part number, are RoHS compliant and green.
Package
Temperature
Range
TO252-2 (3)/
TO252-2 (5)
0 to +125C
Part Number
AZ2085D-ADJTRG1
Marking ID
AZ2085D-ADJG1
Packing
2500/Tape & Reel
Marking Information
(1)
TO252-2 Series
(Top View)
XXXXXXD
-ADJG1
YWWAXX
AZ2085
Document number: DS36595 Rev. 3 - 2
First and Second Lines: Logo and Marking ID
(See Ordering Information)
Third Line: Date Code
Y: Year
WW: Work Week of Molding
A: Assembly House Code
th
th
XX: 7 and 8 Digits of Batch No.
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A Product Line of
Diodes Incorporated
AZ2085
Package Outline Dimensions (All dimensions in mm(inch).)
6.500(0. 256)
6.700(0. 264)
4.700REF
5.130(0.202)
5.460(0.215)
1.29±0.1
0.470(0.019)
0.600(0.024)
2.200(0.087)
2.380(0.094)
Document number: DS36595 Rev. 3 - 2
0.900(0.035)
1.100(0.043)
0
8
3
7
1.400(0.055)
1.700(0.067)
5
9
AZ2085
5
9
2.900REF
5.250REF
0.720(0.028)
0.850(0.033)
0.720(0.028)
0.900(0. 035)
2.286(0. 090)
BSC
0.600(0.024)
1.000(0.039)
1.800REF
0.150(0.006)
0.750(0.030)
Option 1
9.800(0.386)
10.400(0.409)
0.900(0.035)
1.250(0.049)
Type Package: TO252-2 (3)
6.000(0.236)
6.200(0.244)
NEW PRODUCT
(1)
0
8
Option 2
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A Product Line of
Diodes Incorporated
AZ2085
Package Outline Dimensions (Cont. All dimensions in mm(inch).)
(2)
Package Type: TO252-2 (5)
NEW PRODUCT
0.880(0.035)
1.270(0.050)
6.450(0.254)
6.700(0.264)
2.190(0.086)
2.390(0.094)
5.210(0.205)
5.500(0.217)
0.450(0.018)
0.580(0.023)
9.400(0.370)
10.400(0.409)
6.000(0.236)
6.200(0.244)
6°
8°
0.000(0.000)
0.130(0.005)
0.640(0.025)
1.020(0.040)
4.320(0.170)
MIN
AZ2085
Document number: DS36595 Rev. 3 - 2
0.508(0.020)
0°
10°
5.210(0.205)
MIN
0.640(0.025)
0.880(0.035)
1.400(0.055)
1.780(0.070)
2.286(0.090)
2.740(0.108)REF
0.760(0.030)
1.140(0.045)
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A Product Line of
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AZ2085
Suggested Pad Layout
(1)
Package Type: TO252-2 (3)
NEW PRODUCT
X2
Y2
Z
G
Y1
X1
E1
Dimensions
Z
(mm)/(inch)
X1
(mm)/(inch)
X2=Y2
(mm)/(inch)
Y1
(mm)/(inch)
G
(mm)/(inch)
E1
(mm)/(inch)
Value
11.600/0.457
1.500/0.059
7.000/0.276
2.500/0.098
2.100/0.083
2.300/0.091
AZ2085
Document number: DS36595 Rev. 3 - 2
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A Product Line of
Diodes Incorporated
AZ2085
Suggested Pad Layout (Cont.)
(2)
Package Type: TO252-2 (5)
NEW PRODUCT
X2
Y2
Z
G
Y1
X1
E1
Dimensions
Z
(mm)/(inch)
X1
(mm)/(inch)
X2=Y2
(mm)/(inch)
Y1
(mm)/(inch)
G
(mm)/(inch)
E1
(mm)/(inch)
Value
11.600/0.457
1.500/0.059
7.000/0.276
2.500/0.098
2.100/0.083
2.300/0.091
AZ2085
Document number: DS36595 Rev. 3 - 2
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© Diodes Incorporated
A Product Line of
Diodes Incorporated
AZ2085
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
NEW PRODUCT
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2014, Diodes Incorporated
www.diodes.com
AZ2085
Document number: DS36595 Rev. 3 - 2
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© Diodes Incorporated
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