AS431AKTRE1

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Document overview

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• PDF pages: 20

Technical content

Features

 Programmable Precise Output Voltage from 2.5V to 36V  High Stability under Capacitive Load  Low Temperature Deviation: 4.5mV Typical  Low Equivalent Full -range Temperature Coefficient with 20PPM/°C Typical  Sink Current Capacity from 1mA to 100mA  Low Output Noise  Wide Operating Range of -40 to +125°C  Lead-Free Packages: SOT23, SOT25, TO92 (Ammo Packing), SOT89  Totally Lead-Free; RoHS Compliant (Notes 1 & 2)  Lead-Free Packages, Available in “Green” Molding Compound: SOT23, SOT25, TO92 (Ammo Packing), SOT89  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3)

Applications

 Charger  Voltage Adapter  Switching Power Supply  Graphic Card  Precision Voltage Reference Pin Assignments (Top View) (Top View) SOT23 SOT25 Note 4: * Pin 2 is attached to substrate and must be connected to ANODE or open. (Top View) (Top View) SOT89 (Option 1) SOT89 (Option 2) (Top View) TO92 (Ammo Packing) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ 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 tot al Br + Cl) and <1000ppm antimony compounds. ANODE CATHODEREF 1 2 3 REF CATHODEANODE 1 2 3 REF CATHODEANODE REFCATHODE ANODE1 3 4 5NC (Note 4)* REF CATHODE ANODE

Document number: DS36599 Rev. 4 - 2 2 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Typical Applications Circuit Shunt Regulator High Current Shunt Regulator Current Source or Current Limit

Document number: DS36599 Rev. 4 - 2 3 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Typical Applications Circuit (Cont.) Precision 5V 1A Regulator PWM Converter with Reference

Document number: DS36599 Rev. 4 - 2 4 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Functional Block Diagram Absolute Maximum Ratings (Note 5) Symbol Parameter Rating Unit VKA Cathode Voltage 40 V IKA Cathode Current Range (Continuous) -100 to 150 mA IREF Reference Input Current Range 10 mA PD Power Dissipation mW TJ Junction Temperature +150 °C TSTG Storage Temperature Range -65 to +150 °C ESD ESD (Human Body Model) 2000 V Note 5: 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 Condi tions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability. Recommended Operating Conditions Symbol Parameter Min Max Unit VKA Cathode Voltage VREF 36 V IKA Cathode Current 1.0 100 mA TA Operating Ambient Temperature Range -40 +125 °C

Document number: DS36599 Rev. 4 - 2 5 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Electrical Characteristics (Operating Conditions: TA = +25° C, unless otherwise specified.) Symbol Parameter Test Circuit Conditions Min Typ Max Unit VREF Reference Voltage 0.5%

4 VKA = VREF, IKA = 10mA

2.487 2.500 2.512 V 1.0% 2.475 2.500 2.525 ∆VREF Deviation of Reference Voltage Over Full Temperature Range 4 VKA = VREF, IKA = 10mA 0 to +70° C — 4.5 8 mV -40 to +85° C — 4.5 10 -40 to +125° C — 4.5 16 ∆VREF ∆VKA Ratio of Change in Reference Voltage to the Change in Cathode Voltage

5 IKA = 10mA

∆VKA = 10V to VREF — -1.0 -2.7 mV/V ∆VKA = 36V to 10V — -0.5 -2.0 IREF Reference Current 5 IKA = 10mA, R1 = 10kΩ, R2 = ∞ — 0.7 4 µA ∆IREF Deviation of Reference Current Over Full Temperature Range 5 IKA = 10mA, R1 = 10kΩ, R2 = ∞, TA = -40 to +125° C — 0.4 1.2 µA IKA (Min) Minimum Cathode Current for Regulation 4 VKA = VREF — 0.4 1.0 mA IKA (Off) Off-state Cathode Current 6 VKA = 36V, VREF = 0 — 0.05 1.0 µA ZKA Dynamic Impedance 4 VKA = VREF, IKA = 1 to 100mA, f ≤ 1.0kHz — 0.15 0.5 Ω θJC Thermal Resistance — SOT23 — 135.9 — ° C/W SOT25 — 135.9 — TO92 (Ammo Packing) — 81.9 — SOT89 — 29.8 —

Document number: DS36599 Rev. 4 - 2 6 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Electrical Characteristics (Cont.) Test Circuit 4 for VKA = VREF Test Circuit 5 for VKA > VREF Test Circuit 6 for IOFF

Document number: DS36599 Rev. 4 - 2 7 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Performance Characteristics Reference Voltage vs. Ambient Temperature Reference Current vs. Ambient Temperature Cathode Current vs. Cathode Voltage Cathode Current vs. Cathode Voltage Off-State Cathode Current Ratio of Delta Reference Voltage to the vs. Ambient Temperature Ratio of Delta Cathode Voltage -60 -40 -20 0 20 40 60 80 100 120 140 2.485 2.490 2.495 2.500 2.505 2.510 Reference Voltage (V) Ambient Temperature ( o VKA = VREF IKA = 10mA -60 -40 -20 0 20 40 60 80 100 120 140 0.0 0.5 1.0 1.5 R1=10K,R2=Infinite IKA=10mA Reference Current (A) Ambient Temperature ( -2 -1 0 1 2 3 -100 -50 100 150 Cathode Current (mA) Cathode Voltage (V) VKA=VREF TA=25 C -200 200 400 600 800 Cathode Current (A) Cathode Voltage (V) VKA=VREF TA=25 C -40 -20 0 20 40 60 80 100 120 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Off-State Cathode Current (A) Ambient Temperature ( o VKA=36V VREF=0 -40 -20 0 20 40 60 80 100 120 -1.4 -1.3 -1.2 -1.1 -1.0 -0.9 VKA=3.5V to 36V VREF / VKA (mV/V) Ambient Temperature ( o

Document number: DS36599 Rev. 4 - 2 8 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Performance Characteristics (Cont.) Small Signal Voltage Gain vs. Frequency Reference Impedance vs. Frequency Stability Boundary Conditions vs. Load Capacitance 1k 10k 100k 1M -10 Voltage Gain (dB) Small Signal Frequency (Hz) TA=25 C IKA=10mA 1K 10K 100K 1,000K 0.1 Reference Impedance () Frequency (Hz) IKA=10mA TA=25 o C 100 1010.10.010.001 StableStable Cathode Current (mA) Load Capacitance (F) TA=25 o C VKA=VREF VKA= 5V:No oscillation VKA=10V:No oscillation VKA=15V:No oscillation

Document number: DS36599 Rev. 4 - 2 9 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Performance Characteristics (Cont.) Pulse Response of Input and Output Voltage 0 2 4 6 Input Input and Output Voltage (V) Time (S) Output

Document number: DS36599 Rev. 4 - 2 10 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431

Ordering Information

A : 0.5% Product Name Package Z : TO92 (Ammo Packing) N : SOT23 E1/G1 TR : Tape & Reel or Ammo G1 : RoHS Compliant and Green B : 1.0% K : SOT25 R : SOT89 E1 : RoHS Compliant Part Number Voltage Tolerance Package (Note 7) RoHS Compliant Lead Free / Green Marking ID Packing Quantity Status (Note 6) Alternative AS431ANTR- E1 0.5% SOT23 Lead Free EB5 Tape & Reel 3000 NRND AS431ANTR -G1 AS431BNTR- E1 1.0% SOT23 Lead Free EB6 Tape & Reel 3000 NRND AS431BNTR -G1 AS431ANTR- G1 0.5% SOT23 Green GB5 Tape & Reel 3000 In Production — AS431BNTR- G1 1.0% SOT23 Green GB6 Tape & Reel 3000 In Production — AS431AKTR- E1 0.5% SOT25 Lead Free E6H Tape & Reel 3000 NRND AS431AKTR -G1 AS431BKTR- E1 1.0% SOT25 Lead Free E6I Tape & Reel 3000 NRND AS431BKTR -G1 AS431AKTR- G1 0.5% SOT25 Green G6H Tape & Reel 3000 In Production — AS431BKTR- G1 1.0% SOT25 Green G6I Tape & Reel 3000 In Production — AS431AZ-E1 0.5% TO92 Lead Free AS431AZ- E1 Bulk 1000 End of Life AS431AZTR -E1 AS431AZTR- E1 0.5% TO92 Lead Free AS431AZ- E1 Ammo 2000 In Production — AS431BZ-E1 1.0% TO92 Lead Free AS431BZ- E1 Bulk 1000 End of Life AS431BZTR -E1 AS431BZTR- E1 1.0% TO92 Lead Free AS431BZ- E1 Ammo 2000 In Production — AS431AZ-G1 0.5% TO92 Green AS431AZ- G1 Bulk 1000 End of Life AS431AZTR -G1 AS431AZTR- G1 0.5% TO92 Green AS431AZ- G1 Ammo 2000 In Production — AS431BZ-G1 1.0% TO92 Green AS431BZ- G1 Bulk 1000 End of Life AS431BZTR -G1 AS431BZTR- G1 1.0% TO92 Green AS431BZ- G1 Ammo 2000 In Production — Pb Lead-Free Pb Lead-Free Pb Lead-Free Pb Lead-Free Pb Lead-Free Pb Lead-Free Pb Lead-Free Pb Lead-Free

Document number: DS36599 Rev. 4 - 2 11 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Ordering Information (Cont.) Notes: 6. All variants with TO92 package in Bulk packing ( AS431AZ-E1, AS431BZ-E1, AS431AZ-G1 and AS431BZ-G1) are End of Life, recommended alternatives are the variants with the same package in Ammo packing. NRND: Not Recommended for New Design. 7. For packaging details, go to our website at: https://www.diodes.com/design/support/packaging/diodes -packaging/. Marking Information (1) TO92 (Ammo Packing) (Front View) Part Number Voltage Tolerance Package (Note 7) RoHS Compliant Lead Free / Green Marking ID Packing Quantity Status (Note 6) Alternative AS431ARTR- E1 0.5% SOT89 Lead Free E43G Tape & Reel 1000 NRND AS431ARTR -G1 AS431BRTR- E1 1.0% SOT89 Lead Free E43H Tape & Reel 1000 NRND AS431BRTR -G1 AS431ARTR- G1 0.5% SOT89 Green G43G Tape & Reel 1000 In Production — AS431BRTR- G1 1.0% SOT89 Green G43H Tape & Reel 1000 In Production — 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 XX: Internal Code AS431 XZ-XX YWWAXX Pb Lead-Free Pb Lead-Free

Document number: DS36599 Rev. 4 - 2 12 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Marking Information (Cont.) (2) SOT23 (Top View) (3) SOT89 (Top View) (4) SOT25 (Top View) XXX : Logo XXX: Marking ID (See Ordering Information) First Line: Logo and Marking ID (See Ordering Information) Second Line: Date Code Y: Year WW: Work Week of Molding A: Assembly House Code XX: Internal Code : Logo XXX: Marking ID (See Ordering Information) XXX 2 3 XXXX YWWAXX XXXX YWWAXX 2 31

Document number: DS36599 Rev. 4 - 2 13 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Package Outline Dimensions (All dimensions in mm(inch).) (1) Package Type: TO92 (Ammo Packing) 4.300(0.169) 4.700(0.185) 12.500(0.492) 14.500(0.571) 2.540(0.100) Typ 1.270(0.050) Typ 0. (0.015) 0.550(0.022 ) 4.400(0.173 )4.800(0.189 3.430(0.135) MIN 0.320(0.013) 0.510(0.020) 0.000(0.000) 0.380(0.015) MAX 1.100(0.043 1.400(0.055 3.300(0.130) 3.800(0.150) Φ1.600(0.063) 380 2.500(0.098 )4.000(0.157 13.000(0.512 )15.000(0.591

Document number: DS36599 Rev. 4 - 2 14 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Package Outline Dimensions (Cont. All dimensions in mm(inch).) (2) Package Type: SOT23 2.300(0.091) 2.500(0.098) 1.200(0.047) 1.400(0.055) 0.890(0.035) 1.030(0.041) 0.300(0.012) 0.510(0.020) 1.900(0.075)REF 2.800(0.110) 3.000(0.118) 2.0° 3.0 ° 0.500(0.020) 0.700(0.028) 1.050(0.041)REF 0.010(0.0004) 0.100(0.004) 0.900(0.035) 1.100(0.043) 4×R0.100(0.004) 7.0° 7.0° 0.550(0.022)REF 0.200(0.008)MIN 0.100(0.004) GAUGE PLANE 0.080(0.003) 0.180(0.007) R0.100(0.004) 0.0°~10.0°

Document number: DS36599 Rev. 4 - 2 15 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Package Outline Dimensions (Cont. All dimensions in mm(inch).) (3) Package Type: SOT25 2.820(0.111) 2.650(0.104) 1.500(0.059) 0.000(0.000) 0.300(0.012) 0.950(0.037) 0.900(0.035) 0.100(0.004) 0.200(0.008) 0.300(0.012) 3.100(0.122) 1.700(0.067) 3.000(0.118) 0.500(0.020) 0.150(0.006) 1.300(0.051) 0.200(0.008) 0.600(0.024) 1.800(0.071) 2.000(0.079) 0.700(0.028) REF TYP 1.450(0.057) M AX

Document number: DS36599 Rev. 4 - 2 16 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Package Outline Dimensions (Cont. All dimensions in mm(inch).) (4) Package Type: SOT89 1.550(0.061)REF 4.400(0.173) 4.600(0.181) 0.900(0.035) 1.200(0.047) 3.950(0.156) 4.250(0.167) 3.000(0.118) TYP 0.480(0.019) 2.300(0.091) 2.600(0.102) 0.320(0.013) 0.540(0.021) 3 10 2.060(0.081)REF 1.400(0.055) 1.600(0.063) 0.350(0.014) 0.450(0.018) R0.150(0.006) 1.500(0.059) 0.320(0.013)REF 1.620(0.064)REF 2.210(0.087)REF 0.320(0.013) 0.540(0.021) 1.800(0.071) Option 1 Option 2 0.620(0.024) 1.620(0.064) 1.830(0.072) 2.630(0.104) 2.930(0.115) Option 1

Document number: DS36599 Rev. 4 - 2 17 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Suggested Pad Layout (1) Package Type: SOT23 Y GZ Y X E Grid placement courtyard Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) E (mm)/(inch)

Document number: DS36599 Rev. 4 - 2 18 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Suggested Pad Layout (Cont.) (2) Package Type: SOT25 Y X G Z Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) (mm)/(inch) (mm)/(inch)

Document number: DS36599 Rev. 4 - 2 19 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 Suggested Pad Layout (Cont.) (3) Package Type: SOT89 EX Y Z Dimensi ons Z (mm)/(inch) X (mm)/(inch) (mm)/(inch) (mm)/(inch) Y (mm)/(inch) (mm)/(inch) E (mm)/(inch)

Document number: DS36599 Rev. 4 - 2 20 of 20 www.diodes.com May 2018 © Diodes Incorporated AS431 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). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other c hanges 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 unde r its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products de scribed 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 Diod es 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 ou t 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 name s 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 docume nt 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 i n 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 s ystems, 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 © 2018, Diodes Incorporated www.diodes.com