AME431B series 3-terminal adjustable shunt regulator with guaranteed t
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AME431B-2.5V
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 2.5V AME431Bxxxxx25. output voltage 2.5V VREF=2.5V part type with external resistors.
VREF
Adjustable Precision Shunt Regulator
Functional Block Diagram
Cathode
AME431B precision reference offered reference tolerance: 0.5% 1.0% main packages have thermal impendance which allows operation over wide range -40oC 125oC.
Anode
Features
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-92-3, SOT-23, SOT-89, SOP-8 SOT-25 AME's 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.B.01
AME431B-2.5V
Typical Applications
Shunt Regulator
VOUT
Adjustable Precision Shunt Regulator
VREF VO=(1+R1/R2) VREF AME431B
High Current Shunt Regulator
VOUT VO=(1+R2/R3) VREF VREF AME431B
Current Source Current Limit
IOUT
IOUT=VREF/R2+IKA
AME431B
Rev.B.01
AME431B-2.5V
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.B.01
AME431B-2.5V
Configuration
SOT-23/TSOT-23 View
Adjustable Precision Shunt Regulator
SOT-23/TSOT-23 View AME431BAJETXXXX Cathode Anode Attach: Conductive Epoxy
AME431B
AME431B
AME431BBJETXXXX Cathode Anode Attach: Conductive Epoxy
SOT-89 Front View AME431BAJFTXXXX Anode Cathode Attach: Conductive Epoxy
TO-92-3 Bottom View
AME431B
AME431BAJATXXXX Anode Cathode Attach: Conductive Epoxy
SOP-8 View
SOT-25/TSOT-25 View AME431BAJHAXXXX Cathode Anode Anode Anode Anode Attach: Conductive Epoxy
AME431B
AME431B
AME431BAJEVXXXX Cathode Andode Attach: Non-Conductive Epoxy
Rev.B.01
AME431B-2.5V
Ordering Information AME431B
Special Feature2 Special Feature1 Reference Voltage Accuracy Number Pins Package Type Operating Ambient Temperature Range Configuration
Configuration Operating Ambient Temperature Range -40OC 125OC Package Type Number Reference Accuracy Voltage Pins 0.5% 1.0% 2.5V Special Feature1 Special Feature2 (For TO-92 Package Only) Package Taping Bulk Lead Pitch 5.08mm 2.54mm
Adjustable Precision Shunt Regulator
Cathode (SOT-23) (TSOT-23) Anode Cathode (TSOT-23) Anode
(SOT-23)
TO-92 SOT-2X SOT-89
Lead free profile Lead free
N/A:
(SOT-89)
Anode Cathode Anode Cathode Cathode Anode Anode Anode Anode Cathode Anode
(TO-92-3)
(SOP-8)
(SOT-25)
Rev.B.01
AME431B-2.5V
Ordering Information
Part Number
AME431BAJETA25Z AME431BAJETA25Y AME431BBJETA25Z AME431BBJETA25Y AME431BAJETB25Z AME431BAJETB25Y AME431BBJETB25Z AME431BBJETB25Y AME431BAJFTA25Z AME431BAJFTB25Z AME431BAJHAB25Z
Adjustable Precision Shunt Regulator
Marking*
BAFww BAFww BAGww BAGww AZAww AZAww AZBww AZBww A431B BKXww A431B BJBww 431B BJCww AME25 431B AJATB yyww AME25 431B AJATB yyww AME25 431B AJATA yyww AME25 431B AJATA yyww
Reference Operating Ambient Accuracy Package Voltage Temperature Range
2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 0.5% 0.5% 0.5% 0.5% 1.0% 1.0% 1.0% 1.0% 0.5% 1.0% 1.0% SOT-23 TSOT-23 SOT-23 TSOT-23 SOT-23 TSOT-23 SOT-23 TSOT-23 SOT-89 SOT-89 SOP-8 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC 40oC 125oC
AME431BAJATB25Z
2.5V
1.0%
TO-92-3
40oC 125oC
AME431BAJATB25Z-1
2.5V
1.0%
TO-92-3
40oC 125oC
AME431BAJATA25Z
2.5V
0.5%
TO-92-3
40oC 125oC
AME431BAJATA25Z-1
2.5V
0.5%
TO-92-3
40oC 125oC
Note: yyww represents date code refer Date Code Rule Package Dimension. line first letter represents lead free plating such Please consult sales office authorized Rep./Distributor output voltage package type availability.
Rev.B.01
AME431B-2.5V
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
Unit
Rev.B.01
AME431B-2.5V
Thermal Information
Parameter Package
SOT-23** TSOT-23 SOT-89* Thermal Resistance (Junction Case) TO-92-3** SOP-8** SOT-25** TSOT-25 SOT-23 TSOT-23 SOT-89 Thermal Resistance (Junction Ambient) TO-92-3 SOP-8 SOT-25 TSOT-25 SOT-23 TSOT-23 SOT-89 Internal Power Dissipation TO-92-3 SOP-8 SOT-25 TSOT-25 Solder Iron Sec)*** Non-Conductive Epoxy Conductive Epoxy Non-Conductive Epoxy Conductive Epoxy Non-Conductive Epoxy Conductive Epoxy
Adjustable Precision Shunt Regulator
Attach
Symbol
Maximum
Unit
Measure backside center tab. Measure center molding compound tab. MIL-STD-202G 210F
Rev.B.01
AME431B-2.5V
Electrical Specifications (AME431Bxxxxx25)
250C, IREF 10mA unless otherwise specified
Parameter 0.5% Reference Voltage 1.0% Deviation Reference Voltage Over Temperature Ratio Change Reference Voltage Change Cathode Voltage VREF VREF VREF, 10mA VREF 10mA 70oC VREF 10mA VREF
Adjustable Precision Shunt Regulator
Test Symbol Circuit
Test Condition
2.4875 2.4750
2.50 2.50 -1.0 -0.5
2.5125
Units
2.5250 -2.7 mV/V -2.0
Reference Current Deviation Reference Current Over Full Temperature Range Minimum Cathode Current Regulation Off-State Cathode Current
IREF
10mA 10K, 10mA
IREF (MIN) (OFF)
VREF 36V, VREF VREF 100mA F<1KHz
0.05
Dynamic Impendance
0.15
IOFF
IREF
VKA=VREF(1+R1/R2)+IREFR1
VREF
VREF
Figure1. Test Circuit VKA=VREF
Rev.B.01
Figure2. Test Circuit VKA>VREF
Figure3. Test Circuit IOFF
AME431B-2.5V
Cathode Current Cathode Voltage
Adjustable Precision Shunt Regulator
Current Cathode Voltage
VKA=VREF
Cathode Current (mA)
Cathode Current (µA)
25oC
VKA=VREF 25oC
-200
-100
-1.0
-0.5
2.495
Cathode Voltage
Cathode Voltage
Reference Current Temperature
Reference Voltage Cathode Current
2.520 2.515
Reference Current (µA)
Reference Voltage
2.510 2.505 2.500 2.495 2.490 2.485 2.480
Temperature
Cathode Current (mA)
Small Signal Voltage Gain Frequency
100K 1000K
25oC IKA= 10mA
Output 10uF
(dB)
8.2K
100K
1000K
Small Signal Frequency
Rev.B.01
AME431B-2.5V Adjustable Precision Shunt Regulator
Small Signal Voltage Gain Frequency
Input Output Voltage
Input
Output
VREF 2.5V
Output
Pulse Generator f=100KHz
Time (µS)
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.B.01
AME431B-2.5V
Delta Reference Voltage Temperature
Adjustable Precision Shunt Regulator
Off-State Current Temperature
Delta Vref/Delta VK(mV/V)
-0.2 -0.4 -0.6 -0.8 -1.2 -1.4
Off-State Current (µA)
VREF 2.5V
VKA= VREF
Temperature (oC)
Temperature (oC)
Impedance Temperature
0.25
2.510
Reference Voltage Temperature
Impedance (1mA-100mA)
Reference Voltage
0.20
2.505
VKA= VREF IKA=10mA
0.15
2.500
0.10
2.495
0.05
2.490
0.00
Temperature (oC)
2.485
Temperature (oC)
Rev.B.01
AME431B-2.5V
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.B.01
AME431B-2.5V
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.B.01
AME431B-2.5V
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.B.01
AME431B-2.5V
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.B.01
AME431B-2.5V
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.B.01
AME431B-2.5V
Package Dimension
SOT-23
View Side View
Adjustable Precision Shunt Regulator
SYMBOLS
MILLIMETERS
1.00 0.00 0.35 2.70 1.40
INCHES
0.0394 0.0000 0.0138 0.1063 0.0551
1.40 0.15 0.50 3.10 1.80
0.0551 0.0059 0.0197 0.1220 0.0709
1.90 2.40 3.00
0.0748 0.09449 0.11811 0.0138BSC
0.35BSC
Front View
TSOT-23
View Side View
SYMBOLS A+A1
MILLIMETERS
0.80 0.35 2.70 1.20
INCHES
0.0315 0.0138 0.1063 0.0472
1.30 0.50 3.10 1.80
0.0512 0.0197 0.1220 0.0709
1.90 2.40 3.00
0.0748 0.09449 0.11811 0.0138BSC
0.35BSC
Front View
Rev.B.01
AME431B-2.5V
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
View Side View
SYMBOLS
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
7o(4X)
1.27 0.40 5.80
1.27 6.30 0.10
0.00394
Rev.B.01
AME431B-2.5V
Package Dimension
SOT-25
View Side View
Adjustable Precision Shunt Regulator
SYMBOLS
MILLIMETERS
0.15 0.55 3.10 1.80
INCHES
0.0000 0.0118 0.1063 0.0551
0.0059 0.0217 0.1220 0.0709
1.20REF 0.00 0.30 2.70 1.40
0.0472REF
1.90 2.60 3.00
0.07480 0.10236 0.11811 0.0146BSC
0.37BSC
Front View
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.B.01
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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. september 2007 Document: ORT-DS431B-B.01
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3100 Cruz Blvd., Suite Santa Clara, 95054-2438 (408) 988-2388 Fax: (408) 988-2489
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