AME431BBJETB12

AME AME431B-1.24V n General Description The AME431B series ICs are 3-terminal adjustable shunt regulator with guaranteed temperature stability over a full operation range. These ICs feature sharp turn-on characteristics, low temperature coefficient and low output impendance, which make them ideal substitutes for Zener diodes in applications such as switching power supply, charger and other adjustable regulators. The reference is set to 1.24V for AME431Bxxxxx12. The output voltage can be set to 1.24V to 16V for VREF=1.24V part type with two external resistors. The AME431B precision reference is offered in two reference tolerance: 0.5% and 1.0% The 5 main packages have low thermal impendance which allows operation over a wide range of -40oC t o +125oC. Anode Adjustable Precision Shunt Regulator n Functional Block Diagram Cathode REF VREF n Features l Very Accurate Reference Voltage : 0.15% Typical l High Stability under Capacitive Load l Low Temperature Deviation: 4.5mV Typical l Low Equivalent Full-range Temperature Coefficient with 20PPM/oC Typical l Low Dynamic Output Resistance: 0.2Ω Typical l Sink Current Capacity from 1mA to 100mA l Low Output Noise l Available in 7 Packages: TO-92, SOT-23, TSOT-23, SOT-89, SOP-8 and SOT-25, TSOT-25 l All AME’ s Lead Free Products Meet RoHS Standards n Applications l Adjustable Power Supplies l Linear Regulators l Battery Operated Computer l Portable Electronics l l l l l Instrumentation Switching Power Supply Mother Board LCD Monitor Note Book Computer Rev.E.04 1 AME AME431B-1.24V n Typical Applications Shunt Regulator R3 VIN VOUT Adjustable Precision Shunt Regulator R1 VREF VO=(1+R1/R2) VREF AME431B R2 High Current Shunt Regulator R1 VOUT R4 R2 VO =(1+R2/R3) VREF VREF AME431B R3 VIN Current Source or Current Limit VIN R2 IOUT R1 IOUT =VREF/R2+IKA AME431B 2 Rev.E.04 AME AME431B-1.24V n Typical Applications (contd.) Precision 5V 1.5A Regulator VIN R1 8.2K AME1117 Adjust R2 250 Adjustable Precision Shunt Regulator VOUT 5V, 1.5A AME431B R3 250 Precision 5V 1.5A Regulator R3 C1 R2 680 R5 R1 COMP R4 VOUT U2 3 4 C2 Q1 2 AME431B R6 PWM Controller VFB PS521 Rev.E.04 3 AME AME431B-1.24V n Pin Configuration SOT-23 TSOT-23 Top View 3 Adjustable Precision Shunt Regulator SOT-23 TSOT-23 Top View AME431BAJETXXXX 1. Cathode 2. REF 3 AME431BBJETXXXX 1. REF 2. Cathode AME431B 3. Anode * Die Attach: AME431B 3. Anode * Die Attach: 1 2 Conductive Epoxy 1 2 Conductive Epoxy SOT-89 Top View AME431BAJFTXXXX 1. REF 2. Anode 3. Cathode 1 2 3 SOT-25 TSOT-25 Top View 5 4 AME431BAJEVXXXX 1. NC 2. NC AME431B AME431B 3. Cathode 4. REF 5. Andode * Die Attach: Conductive Epoxy 1 2 3 * Die Attach: Non-Conductive Epoxy SOP-8 Top View 8 7 6 5 TO-92-3 Top View AME431BAJHAXXXX 1. Cathode 2. Anode AME431B AME431BAJATXXXX 1. REF 2. Anode 3. Cathode * Die Attach: Conductive Epoxy AME431B 3. Anode 4. NC 5. NC 6. Anode 1 2 3 4 7. Anode 8. REF * Die Attach: Conductive Epoxy 1 2 3 4 Rev.E.04 AME AME431B-1.24V n Ordering Information AME431B x x x x x xx x - x Special Feature2 Special Feature1 Reference Voltage Accuracy Number of Pins Package Type Operating Ambient Temperature Range Pin Configuration Number Reference of Accuracy Voltage Pins Adjustable Precision Shunt Regulator Pin Configuration Operating Ambient Temperature Range Package Type Special Feature1 Special Feature2 (For TO-92 Package Only) Package Lead Pitch A (SOT-23) (TSOT-23) 1. Cathode 2. REF 3. Anode 1. REF 2. Cathode 3. Anode 1. REF 2. Anode 3. Cathode 1. REF 2. Anode 3. Cathode 1. Cathode 2. Anode 3. Anode 4. NC 5. NC 6. Anode 7. Anode 8. REF 1. NC 2. NC 3. Cathode 4. REF 5. Anode J: -40OC to +125OC A: E: F: H: TO-92 SOT-2X SOT-89 SOP A: 8 T: 3 V: 5 A: 0.5% B: 1.0% 12: 1.24V L: Low profile Y: Lead free & Low profile Z: Lead free N/A: 1: Taping Bulk 5.08mm 2.54mm B (SOT-23) (TSOT-23) A (SOT-89) A (TO-92-3) A (SOP-8) A (SOT-25) (TSOT-25) Rev.E.04 5 AME AME431B-1.24V n 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 to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC Note: yyww & ww represents the date code and pls refer to Date Code Rule before Package Dimension. * A line on top of the first letter represents lead free plating such as AZN Please consult AME sales office or authorized Rep./Distributor for output voltage and package type availability. 6 Rev.E.04 AME AME431B-1.24V n 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 to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC - 40oC to +125oC AME431BAJATA12Z 1.24V 0.5% TO92-3 - 40oC to +125oC AME431BAJATA12Z-1 1.24V 0.5% TO92-3 - 40oC to +125oC AME431BAJATB12Z 1.24V 1.0% TO92-3 - 40oC to +125oC AME431BAJATB12Z-1 1.24V 1.0% TO92-3 - 40oC to +125oC Rev.E.04 7 AME AME431B-1.24V n Absolute Maximum Ratings Parameter Cathode Current Cathode Voltage Adjustable Precision Shunt Regulator Maximum 100 18 Unit mA V Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device n Recommended Operating Conditions Parameter Supply Current Operation Voltage Range Ambient Temperature Range Junction Temperature Range Storage Temperature Range TA TJ TSTG Rating 1 to 100 1.24 to 16 -40 to +125 -40 to +125 -65 to +150 Unit mA V o C C C o o 8 Rev.E.04 AME AME431B-1.24V n Thermal Information Parameter Package SOT-23** TSOT-23 SOT-89* Thermal Resistance (Junction to Case) TO-92-3** SOP-8** SOT-25** TSOT-25 SOT-23 TSOT-23 SOT-89 Thermal Resistance (Junction to 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 Maximum Junction Temperature Solder Iron (10 Sec)*** Non-Conductive Epoxy Conductive Epoxy PD Non-Conductive Epoxy Conductive Epoxy θJA Non-Conductive Epoxy Conductive Epoxy θJC Adjustable Precision Shunt Regulator Die Attach Symbol Maximum 81 40 80 60 140 Unit o C/W 260 180 150 150 280 400 550 625 810 400 150 350 o o mW C C * Measure θJC on backside center of tab. ** Measure θJC on center of molding compound if IC has no tab. *** MIL-STD-202G210F Rev.E.04 9 AME AME431B-1.24V n Electrical Specifications TA = 250C, IREF=10mA unless otherwise specified P arameter Reference Voltage 0.5% 1.0% Test Symbol Circuit 1 VREF ∆ VREF Test Condition VKA - VREF , IKA=10mA VKA = VREF IKA=10mA ∆ VREF ∆ VKA 0oC ~ +70oC -40 C ~ +85 C ∆ VKA = 2 IKA=10mA 5V to VREF ∆ VKA = 16V to 5V 2 IREF IKA=10mA R1=10K Ω, R2=∞ R1=10K Ω, R2= ∞ 2 ∆ IREF IKA (MIN) IKA (OFF) ZKA IKA=10mA TA= -40 C ~ +85 C Minimum Cathode Current for Regulation Off-State Cathode Current 1 3 VKA=VREF VKA=18V, VREF =0V VKA = VREF , IKA=1 to 100mA F< 1KHz 55 0.04 80 0.1 µA µA o o o o Adjustable Precision Shunt Regulator Min Typ Max 1.246 Units V 1.234 1.240 1.228 1.240 1.252 2 3 -0.5 -0.5 0.15 10 10 -1.5 Deviation of Reference Voltge Over Temperature Ratio of Change in Reference Voltage to the Change in Cathode Voltage Reference Input Current Deviation of Reference Current Over Full Temperature Range 1 mV mV/V -1.5 0.4 µA - 0.1 0.4 µA Dynamic Impendance 1 - 0.05 0.15 Ω 10 Rev.E.04 AME AME431B-1.24V Cathode Current vs. Cathode Voltage 150 800 Adjustable Precision Shunt Regulator Current vs. Cathode Voltage VKA=VREF C athode Curren t (m A) 100 Ca tho de C urre nt (µA) VKA=VREF T A= 25oC 600 T A= 25 oC 50 400 0 200 -50 0 -100 -1.2 -1 -0.8 -0.2 0.2 0.6 1 1.4 -200 -0.7 -0.5 0 0.5 1.1 1.24 Cathode Voltage (V) Cathode Voltage (V) Reference Current vs. Temperature 1.7 1.6 Reference Voltage vs. Cathode Current 1.250 1.248 R eference Cu rrent (µA ) R eference Vol tag e (V) -5 25 55 o 85 115 125 1.246 1.244 1.242 1.240 1.238 1.236 1.234 1.232 10 1.5 1.4 1.3 1.2 1.1 1.0 -45 Temperature ( C) 20 30 40 50 60 70 80 90 100 110 Cathode Current (mA) Small Signal Voltage Gain vs. Frequency I npu t and Outp ut Vo ltage (V) 5 220 Input 4 Output 3 Pulse Generator f=100KHz 50 2 1 Output GND 0 2 4 6 0 Time (µS) Rev.E.04 11 AME AME431B-1.24V Small Signal Voltage Gain vs. Frequency 1K 60 10K 100K 1000K 60 Adjustable Precision Shunt Regulator 50 T A= 25oC IKA= 10mA 50 Output 15K 10uF IKA 242 40 40 Av (d B) 30 30 20 20 8.2K 10 10 0 1K 0 10K 100K 1000K GND Small Signal Frequency Reference Impedance vs. Frequency 1K Reference Impedance (Ω) 10 IKA= 10mA TA= 25oC Output IK A 50 1 0.1 1K 10K 100K 1000K GND Frequency (Hz) Stability Boundary Conditions vs. Load Capacitance 100 90 C a thode Cur r en t (m A) A: - - - VKA=5V B: ___ VKA=10V VKA=15V: No oscillation R1(10K) IKA 80 70 60 50 40 30 20 10 150 A R2 B 0.1uF 1uF 2uF 0 0.01uF Load Capacitance 12 Rev.E.04 AME AME431B-1.24V Impedance vs. Temperature Imp edan ce (1m A-100mA ) oh m 0.25 Adjustable Precision Shunt Regulator Reference Voltage vs. Temperature 1.250 Referen ce Vo ltage (V) 0.20 1.245 VKA= VREF IKA=10mA 0.15 1.240 0.10 1.235 0.05 1.230 0.00 -45 -5 25 55 85 115 125 Temperature (oC) 1.225 -45 -5 25 55 85 115 125 Temperature (oC) Delta Reference Voltage vs. Temperature 0 70 60 Off-State Current vs. Temperature Delta Vref/Del ta VK (mV/ V) -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -45 Off-Stat e Curren t (nA ) -5 25 55 85 115 125 50 40 30 20 10 0 -45 Temperature (oC) -5 25 55 85 115 125 Temperature (oC) Rev.E.04 13 AME AME431B-1.24V n Date Code Rule Marking A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A Date Code W W W W W W W W W W W W W W W W W W W W Year xxx0 xxx1 xxx2 xxx3 xxx4 xxx5 xxx6 xxx7 xxx8 xxx9 Adjustable Precision Shunt Regulator n Tape and Reel Dimension SOT-25 P W AME PIN 1 AME Carrier Tape, Number of Components Per Reel and Reel Size Package SOT-25 Carrier Width (W) 8.0±0.1 mm Pitch (P) 4.0±0.1 mm Part Per Full Reel 3000pcs Reel Size 180±1 mm 14 Rev.E.04 AME AME431B-1.24V n Tape and Reel Dimension TSOT-25 P Adjustable Precision Shunt Regulator W AME PIN 1 AME Carrier Tape, Number of Components Per Reel and Reel Size Package TSOT-25 Carrier Width (W) 8.0±0.1 mm Pitch (P) 4.0±0.1 mm Part Per Full Reel 3000pcs Reel Size 180±1 mm SOT-89 P W AME PIN 1 AME Carrier Tape, Number of Components Per Reel and Reel Size Package SOT-89 Carrier Width (W) 12.0±0.1 mm Pitch (P) 4.0±0.1 mm Part Per Full Reel 1000pcs Reel Size 180±1 mm Rev.E.04 15 AME AME431B-1.24V n Tape and Reel Dimension SOT-23 P Adjustable Precision Shunt Regulator W AME PIN 1 AME Carrier Tape, Number of Components Per Reel and Reel Size Package SOT-23 Carrier Width (W) 8.0±0.1 mm Pitch (P) 4.0±0.1 mm Part Per Full Reel 3000pcs Reel Size 180±1 mm TSOT-23 P W AME PIN 1 AME Carrier Tape, Number of Components Per Reel and Reel Size Package TSOT-23 Carrier Width (W) 8.0±0.1 mm Pitch (P) 4.0±0.1 mm Part Per Full Reel 3000pcs Reel Size 180±1 mm 16 Rev.E.04 AME AME431B-1.24V n Tape and Reel Dimension SOP-8 P Adjustable Precision Shunt Regulator PIN 1 W AME AME Carrier Tape, Number of Components Per Reel and Reel Size Package SOP-8 Carrier Width (W) 12.0±0.1 mm Pitch (P) 4.0±0.1 mm Part Per Full Reel 2500pcs Reel Size 330±1 mm TO-92-3 AME AME PIN 1 W P Carrier Tape, Number of Components Per Reel and Reel Size Package TO-92-3 Carrier Width (W) 18.0 +1.0 mm -0.5 Pitch (P) 12.7±0.2 mm Part Per Full Reel 2000pcs Reel Size N/A Rev.E.04 17 AME AME431B-1.24V n Package Dimension TO-92-3 (bulk pack) SYMBOLS Top View Adjustable Precision Shunt Regulator MILLIMETERS MIN MAX 4.95 INCHES MIN 0.1102 MAX 0.1949 A L e e1 w 2.80 b E PIN 1 D 0.40REF 3.94REF 2.54REF 1.27REF 12.70 2.29 0.35 3.80 0.76 4.95 15.49 0.0157REF 0.1551REF 0.1000REF 0.0500REF 0.5000 0.6098 e e1 L E-PIN C 1/16 R W 0.0902 0.0138 0.1496 0.0299 0.1949 Side View A R b E D Notes: 1. Package outline exclusive of any mold flashes dimension. 2. Package outline exclusive of burr dimension. 3. Lead pitch=2.54mm is bulk pack. 4. Lead pitch=5.08mm is tape pack. TO-92-3 (tape pack) Top View L e e1 SYMBOLS A MILLIMETERS MIN 2.80 INCHES MIN 0.1102 MAX 4.95 MAX 0.1949 w PIN 1 D b E e e1 E-PIN C 1/16 0.40REF 2.40 3.94 0.0157REF 0.0945 0.1551 5.08REF 2.54REF 12.70 2.00 0.35 3.80 0.76 4.95 15.49 0.2REF 0.1REF 0.5000 0.6098 Side View A R b E L R W D 0.0787 0.0138 0.1496 0.0299 0.1949 Notes: 1. Package outline exclusive of any mold flashes. 2. Package outline exclusive of burr dimension. 3. Lead pitch=2.54mm is bulk pack. 4. Lead pitch=5.08mm is tape pack. 18 Rev.E.04 AME AME431B-1.24V n Package Dimension SOT-23 Top View D θ1 Side View Adjustable Precision Shunt Regulator SYMBOLS A H MILLIMETERS MIN 1.00 0.00 0.35 2.70 1.40 2.40 o INCHES MIN 0.0394 0.0000 0.0138 0.1063 0.0551 MAX 1.40 0.15 0.50 3.10 1.80 3.00 o MAX 0.0551 0.0059 0.0197 0.1220 0.0709 A1 b D E e H L θ1 E PIN 1 e L 1.90 BSC 0.35BSC 0 10 0.0748 BSC 0.09449 0.11811 0.0138BSC 0 o o Front View TSOT-23 Top View D θ1 Side View A1 b A 10 SYMBOLS A+A1 H MILLIMETERS MIN 0.80 0.35 2.70 1.20 INCHES MIN 0.0315 0.0138 0.1063 0.0472 MAX 1.30 0.50 3.10 1.80 MAX 0.0512 0.0197 0.1220 0.0709 b D E e H L 81 E PIN 1 e L 1.90 BSC 2.40 3.00 0.0748 BSC 0.09449 0.11811 0.0138BSC 0o 10o Front View 0.35BSC 0o 10o Rev.E.04 A1 b A 19 AME AME431B-1.24V n Package Dimension SOT-89 Top View D D1 Side View Adjustable Precision Shunt Regulator SYMBOLS H MILLIMETERS MIN MAX 1.60 INCHES MIN 0.05472 MAX 0.06299 A E 1.39 A1 3' 0.8 REF 0.35 4.39 1.35 2.28 0.36 0.44 4.60 1.83 2.60 0.56 0.03150 REF 0.01378 0.17283 0.05315 0.08976 0.01417 0.01732 0.18110 0.07205 0.10236 0.02204 C 10' A1 PIN 1 e Bottom View D2 D D1 E I e A C Front View MATTE FINISH 3.00 REF 0.70 REF 1.50 REF 2.05 1.50 2.60 1.85 0.11811 REF 0.02756 REF 0.05906 REF 0.08071 0.05905 0.10236 0.07283 H S1 E2 D2 E2 I POLISH S1 SOP-8 Top View C Side View SYMBOLS A MILLIMETERS MIN 1.35 0.10 INCHES MIN 0.05315 MAX 1.75 0.30 MAX 0.0689 H E A1 A2 L 0.00394 0.01181 0.05799 REF 0.01299 0.02008 0.00748 0.00984 0.18898 0.20984 0.14961 0.15748 0.05000 BSC 0.01575 0.05000 0.22835 0.24803 0 o 1.473 REF 0.33 0.19 4.80 3.80 0.51 0.25 5.33 4.00 B θ PIN 1 D C D E Front View 7o(4 X) e L A2 1.27 BSC 0.40 5.80 0 o 1.27 6.30 0.10 8 o H A y θ 0.00394 8 o B 20 Rev.E.04 A1 e AME AME431B-1.24V n Package Dimension SOT-25 Top View D θ1 Side View Adjustable Precision Shunt Regulator SYMBOLS A MILLIMETERS MIN MAX INCHES MIN MAX 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 H E A1 b D PIN 1 L S1 e E e H L θ1 S1 1.90 BSC 2.60 3.00 0.07480 BSC 0.10236 0.11811 0.0146BSC o 0.37BSC 0 o Front View A 10 0o 10o 0.95BSC 0.0374BSC b TSOT-25 Top View D θ1 Side View A1 SYMBOLS A+A1 b D PIN 1 L S1 e MILLIMETERS MIN MAX 1.25 0.50 3.10 1.80 INCHES MIN 0.0354 0.0118 0.1063 0.0551 MAX 0.0492 0.0197 0.1220 0.0709 H E 0.90 0.30 2.70 1.40 E e H L θ1 1.90 BSC 2.40 3.00 0.07480 BSC 0.09449 0.11811 0.0138BSC 0o 10o 0.35BSC 0o 10o Front View A S1 0.95BSC 0.0374BSC b Rev.E.04 A1 21 www.ame.com.tw E-Mail: sales@ame.com.tw Life Support Policy: These products of AME, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of AME, Inc. AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. © AME, Inc. , November 2008 Document: BCD-DS431B-E.04 Corporate Headquarter AME, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District Taipei 114, Taiwan. Tel: 886 2 2627-8687 Fax: 886 2 2659-2989