AME431B series 3-terminal adjustable shunt regulator with guaranteed t
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AME431B-1.24V
AME431B series 3-terminal adjustable shunt regulator with guaranteed temperature stability over full operation range. These feature sharp turn-on characteristics, temperature coefficient output impendance, which make them ideal substitutes Zener diodes applications such switching power supply, charger other adjustable regulators. reference 1.24V AME431Bxxxxx12. output voltage 1.24V VREF=1.24V part type with external resistors. AME431B precision reference offered reference tolerance: 0.5% 1.0% main packages have thermal impendance which allows operation over wide range -40oC 125oC.
Anode
Adjustable Precision Shunt Regulator
Functional Block Diagram
Cathode
VREF
Features
Very Accurate Reference Voltage 0.15% Typical High Stability under Capacitive Load Temperature Deviation: 4.5mV Typical Equivalent Full-range Temperature Coefficient with 20PPM/oC Typical Dynamic Output Resistance: Typical Sink Current Capacity from 100mA Output Noise Available Packages: TO-92, SOT-23-3, SOT-89, SOP-8 SOT-25 AME' Lead Free Products Meet RoHS Standards
Applications
Adjustable Power Supplies Linear Regulators Battery Operated Computer Portable Electronics Instrumentation Switching Power Supply Mother Board Monitor Note Book Computer
Rev.E.02
AME431B-1.24V
Typical Applications
Shunt Regulator
VOUT
Adjustable Precision Shunt Regulator
VREF VO=(1+R1/R2) VREF AME431B
High Current Shunt Regulator
VOUT =(1+R2/R3) VREF VREF AME431B
Current Source Current Limit
IOUT
IOUT =VREF/R2+IKA
AME431B
Rev.E.02
AME431B-1.24V
Typical Applications (contd.)
Precision 1.5A Regulator
8.2K AME1117 Adjust
Adjustable Precision Shunt Regulator
VOUT 1.5A
AME431B
Precision 1.5A Regulator
COMP
VOUT
AME431B
Controller
PS521
Rev.E.02
AME431B-1.24V
Configuration
SOT-23 TSOT-23 View
Adjustable Precision Shunt Regulator
SOT-23 TSOT-23 View AME431BAJETXXXX Cathode
AME431BBJETXXXX Cathode
AME431B
Anode Attach:
AME431B
Anode Attach:
Conductive Epoxy
Conductive Epoxy
SOT-89 Front View AME431BAJFTXXXX Anode Cathode
TO-92-3 Bottom View
AME431BAJATXXXX Anode Cathode Attach: Conductive Epoxy
AME431B
Attach: Conductive Epoxy
SOP-8 View
SOT-25 TSOT-25 View AME431BAJHAXXXX Cathode Anode
AME431BAJEVXXXX Cathode Andode
AME431B
Anode Anode Anode Attach: Conductive Epoxy
AME431B
Attach: Non-Conductive Epoxy
Rev.E.02
AME431B-1.24V
Ordering Information AME431B
Special Feature2 Special Feature1 Reference Voltage Accuracy Number Pins Package Type Operating Ambient Temperature Range Configuration
Configuration Operating Ambient Temperature Range Packa Type Reference Accuracy Voltage Pins 0.5% 1.0% 1.24V Special Feature1 Special Feature2 (For TO-92 Packa Only) Package Lead Pitch
T-23) T-23)
Adjustable Precision Shunt Regulator
Cathode Anode Cathode Anode Anode Cathode Anode Cathode Cathode Anode Anode Anode Anode Cathode Anode
-40OC 125OC
TO-92 SOT-2X SOT-89
profile N/A: Lead free profile Lead free
Taping Bulk
5.08mm 2.54mm
T-23) T-23)
T-89)
-92-3)
P-8)
T-25)
Rev.E.02
AME431B-1.24V
Ordering Information (contd.)
Part Number
AME431BAJETA12 AME431BAJETA12L AME431BAJETA12Y AME431BAJETA12Z AME431BAJETB12 AME431BAJETB12L AME431BAJETB12Y AME431BAJETB12Z AME431BBJETA12 AME431BBJETA12L AME431BBJETA12Y AME431BBJETA12Z AME431BBJETB12 AME431BBJETB12L AME431BBJETB12Y AME431BBJETB12Z AME431BAJEVA12 AME431BAJEVA12L AME431BAJEVA12Z AME431BAJEVA12Y
Adjustable Precision Shunt Regulator
Marking*
AZNww AZNww AZNww AZNww AZOww AZOww AZOww AZOww AZPww AZPww AZPww AZPww AZQww AZQww AZQww AZQww BAWww BAWww BAWww BAWww
Reference Operating Ambient Accuracy Package Voltage Temperature Range
1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 1.24V 0.5% 0.5% 0.5% 0.5% 1.0% 1.0% 1.0% 1.0% 0.5% 0.5% 0.5% 0.5% 1.0% 1.0% 1.0% 1.0% 0.5% 0.5% 0.5% 0.5% SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-25 TSOT-25 SOT-25 TSOT-25 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC
Note: yyww represents date code refer Date Code Rule before Package Dimension. line first letter represents lead free plating such Please consult sales office authorized Rep./Distributor output voltage package type availability.
Rev.E.02
AME431B-1.24V
Ordering Information
Part Number
AME431BAJEVB12 AME431BAJEVB12L AME431BAJEVB12Z AME431BAJEVB12Y AME431BAJFTA12Z
Adjustable Precision Shunt Regulator
Marking*
BAVww BAVww BAVww BAVww A431B BKYww AME12 431B AJATA yyww AME12 431B AJATA yyww AME12 431B AJATB yyww AME12 431B AJATB yyww
Reference Operating Ambient Accuracy Package Voltage Temperature Range
1.24V 1.24V 1.24V 1.24V 1.24V 1.0% 1.0% 1.0% 1.0% 0.5% SOT-25 TSOT-25 SOT-25 TSOT-25 SOT-89 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC
AME431BAJATA12Z
1.24V
0.5%
TO92-3
40oC 125oC
AME431BAJATA12Z-1
1.24V
0.5%
TO92-3
40oC 125oC
AME431BAJATB12Z
1.24V
1.0%
TO92-3
40oC 125oC
AME431BAJATB12Z-1
1.24V
1.0%
TO92-3
40oC 125oC
Rev.E.02
AME431B-1.24V
Absolute Maximum Ratings
Parameter
Cathode Current Cathode Voltage
Adjustable Precision Shunt Regulator
Maximum
Unit
Caution: Stress above listed absolute maximum rating cause permanent damage device
Recommended Operating Conditions
Parameter
Supply Current Operation Voltage Range Ambient Temperature Range Junction Temperature Range Storage Temperature Range TSTG
Rating
1.24
Unit
Rev.E.02
AME431B-1.24V
Thermal Information
Parameter Package
SOT-23 SOT-89* Thermal Resistance (Junction Case) Conductive Epoxy TO-92 SO-8 SOT-25 SOT-23 SOT-89 Thermal Resistance (Junction Ambient) Conductive Epoxy TO-92 SO-8 SOT-25 SOT-23 SOT-89 Internal Power Dissipation Conductive Epoxy TO-92 SO-8 SOT-25 Maximum Junction Temperature Solder Iron Sec)** Non-Conductive Epoxy
Adjustable Precision Shunt Regulator
Attach
Symbol
Maximum
Unit
Non-Conductive Epoxy
Non-Conductive Epoxy
Measure backside center tab. MIL-STD-202G210F
Rev.E.02
AME431B-1.24V
Electrical Specifications
250C, IREF=10mA unless otherwise specified Parameter Reference Voltage 0.5% 1.0% Test Symbol Circuit VREF VREF Test Condition VREF IKA=10mA VREF IKA=10mA VREF +70oC IKA=10mA VREF IREF IKA=10mA R1=10K, R1=10K, IREF (MIN) (OFF) IKA=10mA Minimum Cathode Current Regulation Off-State Cathode Current VKA=VREF VKA=18V, VREF VREF IKA=1 100mA F<1KHz 0.04
Adjustable Precision Shunt Regulator
1.246
Units
1.234 1.240
1.228 1.240 1.252 -0.5 -0.5 0.15 -1.5
Deviation Reference Voltge Over Temperature Ratio Change Reference Voltage Change Cathode Voltage Reference Input Current Deviation Reference Current Over Full Temperature Range
mV/V -1.5
Dynamic Impendance
0.05
0.15
Rev.E.02
AME431B-1.24V
Cathode Current Cathode Voltage
Adjustable Precision Shunt Regulator
Current Cathode Voltage
VKA=VREF
Cathode Current (mA)
Cathode Current (µA)
VKA=VREF 25oC
-100 -1.2
-0.8
-0.2
-200 -0.7
-0.5
1.24
Cathode Voltage
Cathode Voltage
Reference Current Temperature
Reference Voltage Cathode Current
1.250 1.248
Reference Current (µA)
Reference Voltage
1.246 1.244 1.242 1.240 1.238 1.236 1.234 1.232
Temperature
Cathode Current (mA)
Small Signal Voltage Gain Frequency
Input Output Voltage
Input
Output
Pulse Generator f=100KHz
Output
Time (µS)
Rev.E.02
AME431B-1.24V
Small Signal Voltage Gain Frequency
100K 1000K
Adjustable Precision Shunt Regulator
25oC IKA= 10mA
Output 10uF
(dB)
8.2K
100K 1000K
Small Signal Frequency
Reference Impedance Frequency
Reference Impedance
IKA= 10mA 25oC
Output
100K
1000K
Frequency (Hz)
Stability Boundary Conditions Load Capacitance
Cathode Current (mA)
VKA=5V VKA=10V VKA=15V: oscillation
R1(10K)
0.1uF
0.01uF
Load Capacitance
Rev.E.02
AME431B-1.24V
Impedance Temperature
Impedance (1mA-100mA)
0.25
Adjustable Precision Shunt Regulator
Reference Voltage Temperature
1.250
Reference Voltage
0.20
1.245
VKA= VREF IKA=10mA
0.15
1.240
0.10
1.235
0.05
1.230
0.00
Temperature (oC)
1.225
Temperature (oC)
Delta Reference Voltage Temperature
Off-State Current Temperature
Delta Vref/Delta (mV/V)
-0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9
Off-State Current (nA)
Temperature (oC)
Temperature (oC)
Rev.E.02
AME431B-1.24V
Date Code Rule
Marking Date Code Year xxx0 xxx1 xxx2 xxx3 xxx4 xxx5 xxx6 xxx7 xxx8 xxx9
Adjustable Precision Shunt Regulator
Tape Reel Dimension
SOT-25
Carrier Tape, Number Components Reel Reel Size
Package SOT-25 Carrier Width 8.0±0.1 Pitch 4.0±0.1 Part Full Reel 3000pcs Reel Size 180±1
Rev.E.02
AME431B-1.24V
Tape Reel Dimension
TSOT-25
Adjustable Precision Shunt Regulator
Carrier Tape, Number Components Reel Reel Size Package TSOT-25 Carrier Width 8.0±0.1 Pitch 4.0±0.1 Part Full Reel 3000pcs Reel Size 180±1
SOT-89
Carrier Tape, Number Components Reel Reel Size Package SOT-89 Carrier Width 12.0±0.1 Pitch 4.0±0.1 Part Full Reel 1000pcs Reel Size 180±1
Rev.E.02
AME431B-1.24V
Tape Reel Dimension
SOT-23
Adjustable Precision Shunt Regulator
Carrier Tape, Number Components Reel Reel Size
Package SOT-23 Carrier Width 8.0±0.1 Pitch 4.0±0.1 Part Full Reel 3000pcs Reel Size 180±1
TSOT-23
Carrier Tape, Number Components Reel Reel Size Package TSOT-23 Carrier Width 8.0±0.1 Pitch 4.0±0.1 Part Full Reel 3000pcs Reel Size 180±1
Rev.E.02
AME431B-1.24V
Tape Reel Dimension
SOP-8
Adjustable Precision Shunt Regulator
Carrier Tape, Number Components Reel Reel Size
Package SOP-8
Carrier Width 12.0±0.1
Pitch 4.0±0.1
Part Full Reel 2500pcs
Reel Size 330±1
Rev.E.02
AME431B-1.24V
Package Dimension
TO-92-3 (bulk pack)
SYMBOLS MILLIMETERS
4.95 0.51 3.94 2.67 1.40 15.49 2.41 0.56 4.95
Adjustable Precision Shunt Regulator
INCHES
0.1701 0.0142 0.1299 0.0949 0.0449 0.5000 0.0850 0.0161 0.1752
0.1949 0.0201 0.1551 0.1051 0.0551 0.6098 0.0949 0.0220 0.1949
View
4.32 0.36 3.30 2.41 1.14 12.70 2.16 0.41 4.45
Side View
Notes: Package outline exclusive mold flashes dimension. Package outline exclusive burr dimension. Lead pitch=2.54mm bulk pack. Lead pitch=5.08mm tape pack.
TO-92-3 (tape pack)
SYMBOLS
MILLIMETERS
4.95 0.51 3.94 5.08 2.54 15.49 2.41 0.56 4.95
INCHES
0.1701 0.0142 0.1299 0.1961 0.0980 0.5000 0.0850 0.0161 0.1752
0.1949 0.0201 0.1551 0.2000 0.1000 0.6098 0.0949 0.0220 0.1949
View
4.32 0.36 3.30 4.98 2.49 12.70 2.16 0.41 4.45
Side View
Notes: Package outline exclusive mold flashes. Package outline exclusive burr dimension. Lead pitch=2.54mm bulk pack. Lead pitch=5.08mm tape pack.
Rev.E.02
AME431B-1.24V
Package Dimension
SOT-23
View Side View
Adjustable Precision Shunt Regulator
SYMBOLS
MILLIMETERS
1.00 0.00 0.35 0.09 2.70 1.40
INCHES
0.0394 0.0000 0.0138 0.0035 0.1063 0.0551
1.40 0.15 0.50 0.25 3.10 1.80
0.0551 0.0059 0.0197 0.0098 0.1220 0.0709
1.90 2.40 3.00
0.0748 0.09449 0.11811 0.0138BSC
Front View
0.35BSC
View
TSOT-23
Side View
SYMBOLS
MILLIMETERS
1.30 0.50 0.25 3.10 1.80
INCHES
0.0315 0.0138 0.0031 0.1063 0.0472
0.0512 0.0197 0.0098 0.1220 0.0709
A+A1
0.80 0.35 0.08 2.70 1.20
1.90 2.40 3.00
0.0748 0.09449 0.11811 0.0138BSC
Front View
0.35BSC
Rev.E.02
AME431B-1.24V
Package Dimension
SOT-89
View
POLISH
Adjustable Precision Shunt Regulator
Side View
SYMBOLS
MILLIMETERS
1.39
INCHES
1.60
0.05472 0.06299 0.0315REF 0.01378 0.01732 0.17283 0.1811
0.8REF 0.35 4.39 1.35 2.28 0.44 4.60 1.83 3.60
0.05315 0.07205 0.08976 0.14173 0.1181REF 0.0276REF 0.0590REF
Front View
MATTE FINISH
3.00REF 0.70REF 1.50REF
POLISH
SOP-8
SYMBOLS
View Side View
MILLIMETERS
1.75 0.30
INCHES
0.05315
0.0689
1.35 0.10
0.00394 0.01181 0.05799 0.01299 0.02008 0.00748 0.00984 0.18898 0.20984 0.14961 0.15748 0.05000 0.01575 0.05000 0.22835 0.24803
1.473 0.33 0.19 4.80 3.80 0.51 0.25 5.33 4.00
Front View
o(4X)
1.27 0.40 5.80
1.27 6.30 0.10
0.00394
Rev.E.02
AME431B-1.24V
Package Dimension
SOT-25
View Side View
Adjustable Precision Shunt Regulator
SYMBOLS
MILLIMETERS
INCHES
1.20REF 0.00 0.30 2.70 1.40 0.15 0.55 3.10 1.80
0.0472REF 0.0000 0.0118 0.1063 0.0551 0.0059 0.0217 0.1220 0.0709
1.90 2.60 3.00
0.07480 0.10236 0.11811 0.0146BSC
Front View
0.37BSC
0.95BSC
0.0374BSC
TSOT-25
View Side View
SYMBOLS A+A1
MILLIMETERS
0.90 0.30 2.70 1.40
INCHES
0.0354 0.0118 0.1063 0.0551
1.25 0.50 3.10 1.80
0.0492 0.0197 0.1220 0.0709
1.90 2.40 3.00
0.07480 0.09449 0.11811 0.0138BSC
0.35BSC
Front View
0.95BSC
0.0374BSC
Rev.E.02
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E-Mail: sales@ame.com.tw
Life Support Policy: These products AME, Inc. authorized critical components life-support devices systems, without express written approval president AME, Inc. AME, Inc. reserves right make changes circuitry specifications devices advises customers obtain latest version relevant information. AME, Inc. November 2007 Document: BCD-DS431B-E.02
Corporate Headquarter
Rui-Guang Road, Nei-Hu District Taipei 114, Taiwan. Tel: 2627-8687 Fax: 2659-2989
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3100 Cruz Blvd., Suite Santa Clara, 95054-2438 (408) 988-2388 Fax: (408) 988-2489
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