AME431BAJATA25Z-1

AME AME431B-2.5V 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 2.5V for AME431Bxxxxx25. The output voltage can be set to 2.5V to 36V for VREF=2.5V part type with two external resistors. VREF Adjustable Precision Shunt Regulator n Functional Block Diagram Cathode REF 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 n Features 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-92-3, SOT-23, SOT-89, SOP-8, SOT-25, TSOT-23 and 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.B.04 1 AME AME431B-2.5V 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.B.04 AME AME431B-2.5V 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.B.04 3 AME AME431B-2.5V 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 Front 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 3. Anode AME431B AME431BAJATXXXX 1. REF 2. Anode 3. Cathode * Die Attach: Conductive Epoxy AME431B 4. NC 5. NC 6. Anode 7. Anode 8. REF * Die Attach: Conductive Epoxy 1 2 3 1 2 3 4 4 Rev.B.04 AME AME431B-2.5V 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 of Pins A: 8 T: 3 V: 5 Adjustable Precision Shunt Regulator Pin Configuration Operating Ambient Temperature Range Package Type Accuracy Reference Voltage Special Feature1 Special Feature2 (For TO-92 Package Only) Package Taping Bulk Lead Pitch 5.08mm 2.54mm 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: TO-92 E: SOT-2X F: SOT-89 H: SOP A: 0.5% B: 1.0% 25: 2.5V Y: Lead free & Low profile Z: Lead free N/A: 1: B (SOT-23) (TSOT-23) A (SOT-89) A (TO-92-3) A (SOP-8) A (SOT-25) (TSOT-25) Rev.B.04 5 AME AME431B-2.5V n 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 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 AME431BAJATB25Z 2.5V 1.0% TO-92-3 - 40oC to +125oC AME431BAJATB25Z-1 2.5V 1.0% TO-92-3 - 40oC to +125oC AME431BAJATA25Z 2.5V 0.5% TO-92-3 - 40oC to +125oC AME431BAJATA25Z-1 2.5V 0.5% TO-92-3 - 40oC to +125oC Note: yyww & ww represents the date code and pls refer to Date Code Rule on Package Dimension. * A line on top of the first letter represents lead free plating such as BAFww. Please consult AME sales office or authorized Rep./Distributor for output voltage and package type availability. 6 Rev.B.04 AME AME431B-2.5V n Absolute Maximum Ratings Parameter Cathode Current Cathode Voltage Adjustable Precision Shunt Regulator Maximum 150 40 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 2.5 to 36 -40 to +125 -40 to +125 -65 to +150 Unit mA V o C C C o o Rev.B.04 7 AME AME431B-2.5V 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 Solder Iron (10 Sec)*** * Measure θJC on backside center of tab. ** Measure θJC on center of molding compound if IC has no tab. *** MIL-STD-202G 210F 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 260 180 150 150 280 400 550 625 810 400 350 o mW C 8 Rev.B.04 AME AME431B-2.5V n Electrical Specifications (AME431Bxxxxx25) TA = 250C, IREF = 10mA unless otherwise specified Parameter 0.5% Reference Voltage 1.0% 1 VREF ∆VREF V KA = V REF, IKA = 10mA VKA = V REF IKA = 10mA ∆VREF ∆V KA 0oC to 70oC -40 C to +125 C ∆V KA = 2 IKA = 10mA 10V to VREF ∆V KA = 36V to 10V o o Adjustable Precision Shunt Regulator Test Symbol Circuit Test Condition Min 2.4875 2.4750 - Typ 2.50 2.50 4.5 4.5 -1.0 -0.5 0.7 Max 2.5125 2.5250 8 18 -2.7 Units V Deviation of Reference Voltage Over Temperature Ratio of Change in Reference Voltage to the Change in Cathode Voltage 1 mV mV/V -2.0 4.0 µA Reference Current Deviation of Reference Current Over Full Temperature Range Minimum Cathode Current for Regulation Off-State Cathode Current 2 IREF IKA = 10mA R1 = 10K Ω, R2 = ∞ R1 = 10K Ω , R2 = ∞ o 2 ∆IREF IKA (MIN) IKA (OFF) ZKA IKA = 10mA TA = -40 C to +125 C o 0.4 1.2 µA 1 V KA = V REF - 0.4 1.0 mA µA 3 V KA = 36V, VREF = 0V VKA = V REF , IKA = 1 to 100mA F< 1KHz - 0.05 1.0 Dynamic Impendance 1 - 0.15 0.5 Ω VIN R1 VKA VIN R3 V KA IKA R1 IREF VKA=VREF (1+R1/R2)+IREFR1 VIN IOFF VKA IKA R2 VREF VREF Figure1. Test Circuit for VKA=VREF Rev.B.04 Figure2. Test Circuit for VKA>VREF Figure3. Test Circuit for IOFF 9 AME AME431B-2.5V Cathode Current vs. Cathode Voltage 150 Adjustable Precision Shunt Regulator Current vs. Cathode Voltage 800 VKA=VREF C athod e Cu rrent (m A ) Cath ode Curren t (µA) T A= 100 25oC VKA=VREF T A= 25oC 600 50 400 340 200 0 0 -50 -200 -100 -2 -1 0 1 2 3 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.495 Cathode Voltage (V) Cathode Voltage (V) Reference Current vs. Temperature 1.7 1.6 Reference Voltage vs. Cathode Current 2.520 2.515 Reference C urren t (µA ) Referen ce Vo ltage (V) 1.5 1.4 1.3 1.2 1.1 1.0 -45 2.510 2.505 2.500 2.495 2.490 2.485 2.480 10 -5 25 55 o 85 115 125 20 30 40 50 60 70 80 90 100 110 Temperature ( C) Cathode Current (mA) Small Signal Voltage Gain vs. Frequency 1K 60 10K 100K 1000K 60 50 T A= 25oC IKA= 10mA 50 Output 15K 10uF IKA 242 40 40 A v (dB ) 30 30 20 20 8.2K 10 10 0 1K 0 10K 100K 1000K GND Small Signal Frequency 10 Rev.B.04 AME AME431B-2.5V Adjustable Precision Shunt Regulator Small Signal Voltage Gain vs. Frequency I npu t and Outp ut Vo ltage (V) 5 Input 4 220 Output V REF = 2.5V 3 2 Output Pulse Generator f=100KHz 50 1 0 GND 0 Time (µS) 2 4 6 Reference Impedance vs. Frequency 1K Re fe re nc e Im pe da nc e (Ω) IKA= 10mA 10 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 C urren t (m A) A: - - - VKA=5V B: ___ VKA=10V VKA=15V: No oscillation R1(10K) IKA 150 80 70 60 50 40 30 20 10 A R2 B 0.1uF 1uF 2uF 0 0.01uF Load Capacitance Rev.B.04 11 AME AME431B-2.5V Delta Reference Voltage vs. Temperature 0 2.0 1.8 Adjustable Precision Shunt Regulator Off-State Current vs. Temperature D el ta Vref/D elta VK (mV/ V) -0.2 -0.4 -0.6 -0.8 -1 -1.2 -1.4 -45 Off-State C urrent (µA ) VREF = 2.5V VKA= 36V VREF = 0 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 55 70 100 125 -40 -20 0 20 40 60 80 100 120 Temperature (oC) Temperature (oC) Impedance vs. Temperature 0.25 2.510 Reference Voltage vs. Temperature Im pedance (1mA -100m A) oh m 0.20 R eference Vol tag e (V) 2.505 VKA= VREF IKA=10mA 0.15 2.500 0.10 2.495 0.05 2.490 0.00 -45 -5 25 55 o 85 115 125 2.485 -45 -5 25 55 85 115 125 Temperature ( C) Temperature (oC) 12 Rev.B.04 AME AME431B-2.5V 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 Rev.B.04 13 AME AME431B-2.5V 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 14 Rev.B.04 AME AME431B-2.5V 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 Rev.B.04 15 AME AME431B-2.5V 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 16 Rev.B.04 AME AME431B-2.5V n Package Dimension TO-92-3 (bulk pack) SYMBOLS Top View L e e1 w Adjustable Precision Shunt Regulator MILLIMETERS MIN MAX 4.95 INCHES MIN 0.1102 MAX 0.1949 A b E PIN 1 D 2.80 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. Rev.B.04 17 AME AME431B-2.5V n Package Dimension SOT-23 Top View D θ1 Side View Adjustable Precision Shunt Regulator SYMBOLS A A1 b D E MILLIMETERS MIN 1.00 0.00 0.35 2.70 1.40 INCHES MIN 0.0394 0.0000 0.0138 0.1063 0.0551 MAX 1.40 0.15 0.50 3.10 1.80 MAX 0.0551 0.0059 0.0197 0.1220 0.0709 E PIN 1 e H L e H L θ1 A 1.90 BSC 2.40 3.00 0.0748 BSC 0.09449 0.11811 0.0138BSC 0o 10o 0.35BSC 0o 10o Front View TSOT-23 Top View D θ1 Side View A1 b SYMBOLS A+A1 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 E H b D E PIN 1 e L e H L θ1 1.90 BSC 2.40 3.00 0.0748 BSC 0.09449 0.11811 0.0138BSC 0o 10o 0.35BSC 0o 10 o Front View 18 A1 b A Rev.B.04 AME AME431B-2.5V n Package Dimension SOT-89 Top View D D1 Side View H Adjustable Precision Shunt Regulator SYMBOLS A A1 3' MILLIMETERS MIN 1.39 INCHES MIN 0.05472 MAX 1.60 MAX 0.06299 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 E C 10' A1 PIN 1 e Bottom View D2 D D1 E I e H A C Front View 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 MATTE FINISH S1 E2 D2 E2 I POLISH S1 Rev.B.04 19 AME AME431B-2.5V n Package Dimension SOP-8 Top View C Side View Adjustable Precision Shunt Regulator SYMBOLS A MILLIMETERS MIN 1.35 0.10 INCHES MIN 0.05315 MAX 1.75 0.30 MAX 0.0689 H E A1 A2 B C θ 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 PIN 1 D L D E e L Front View 7o(4X) 1.27 BSC 0.40 5.80 0 o 1.27 6.30 0.10 8 o A2 A H y θ A1 e B 0.00394 8 o SOT-25 Top View D θ1 Side View 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 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 S1 0.95BSC 0.0374BSC b 20 A1 Rev.B.04 AME AME431B-2.5V n Package Dimension TSOT-25 Top View D θ1 Side View Adjustable Precision Shunt Regulator SYMBOLS A+A1 b MILLIMETERS MIN 0.90 0.30 2.70 1.40 INCHES MIN 0.0354 0.0118 0.1063 0.0551 MAX 1.25 0.50 3.10 1.80 MAX 0.0492 0.0197 0.1220 0.0709 H E D E e L S1 e PIN 1 1.90 BSC 2.40 3.00 0.07480 BSC 0.09449 0.11811 0.0138BSC o H L θ1 0.35BSC 0 o 10 0o 10o Front View A S1 0.95BSC 0.0374BSC b Rev.B.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: ORT-DS431B-B.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