AME, Inc. Low Voltage Shunt Regulator AME4311 n General Description n Functional Block Diagram The AME4311 is a low volatge version of the industry standard 431 shunt regulator. The AME4311 reference is set to 1.24 volts. The output voltage can be set to any value between 1.24V and 8V with two external resistors. (For factory set internal feedback resistors see the AME4312.) When used with an optocoupler these devices are ideal for isolated 3.3V switching supplies. Analog Microelectronics offers this part in a TO-92 package as well as the space saving SOT-23 and SOT-25 packages. V+ REF For isolated switching power supplies requiring voltages lower than 2.7V see the AME4315. VR=1.24 n Features l l l l l Small packages: SOT-23, SOT-25, TO-92 Low voltage operation, 1.24V Tight voltage tolerance --- ±0.5%,±1.0%, ±1.5% Wide operating current ------- 80µA to 15mA Wide temperature range ----- -40oC to +85oC l Low temperature coefficient --100ppm/oC(max) GND n Pin Configuration SOT-23 Top View SOT-25 Top View l Excellent transient response GND n Applications l l l l l l l Battery Operating Equipments Adjustable Supplies Switching Power Supplies Error Amplifiers Single Supply Amplifier Monitors / VCR / TV Personal Computers REF GND V+ REF V+ TO-92 Top View V+ GND REF 1 AME, Inc. Low Voltage Shunt Regulator AME4311 n Ordering Information Part Number Marking Output Voltage Tolerance Package Temp. Range AME4311EEAT AME 4311 EEAT yyww 1.24 0.5% TO-92 - 40oC to + 85oC AME4311EEET AVVww 1.24 0.5% SOT-23 - 40oC to + 85oC AME4311FEET AVWww 1.24 1.0% SOT-23 - 40oC to + 85oC AME4311GEET AVXww 1.24 1.5% SOT-23 - 40oC to + 85oC AME4311EEEV AGFww 1.24 0.5% SOT-25 - 40oC to + 85oC Please consult AME sales office or authorized Rep./Distributor for other voltage accuracy and package type availability. 2 AME, Inc. Low Voltage Shunt Regulator AME4311 n Absolute Maximum Ratings Parameter Maximum Unit 20 mA Supply Current Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device n Recommended Operating Conditions Parameter Rating Unit 100µA ~ 15mA Supply Current -40 to +85 o C -40 to +125 o C Ambient Temperature Range Junction Temperature n Thermal Information Parameter Thermal Resistance Maximum SOT-23 325 SOT-25 325 TO-92 180 Unit o C/W Maximum Junction Temperature 150 o Maximum Lead Temperature (10 Sec) 300 o C C 3 AME, Inc. Low Voltage Shunt Regulator AME4311 n Electrical Specifications TA = 250C, IREF=10mA unless otherwise specified Parameter Reference Voltage (Test Circuit 1) Ratio of Change in VREF to Cathode Voltage Reference Input Current Symbol Test Condition VREF 0.5% TA =25oC, IREF = 10mA o Min Typ Max Units 1.234 1.240 1.246 V VREF 1.0% TA =25 C, IREF = 10mA 1.228 1.240 1.252 V VREF 1.5% TA =25oC, IREF = 10mA 1.221 1.240 1.258 V ∆ VREF ∆ VK VKA = 6V to 8V (Test Circuit 2) IREF Test Circuit 2 -2.7 0.3 mV/V 1.0 µA 1000 nA V REF = 0V Off State Leakage IK (OFF) Minimum Current IK VK = 7V (Test Circuit 3) IMIN Reference Voltage Temp. Coeff. Dynamic Output Impendance VIN VKA = VREF IKA=10mA µA 80 V REFTC 0oC < TA < 70oC 100 rZ V Z = VREF , IZ = 0.1mA to 15mA, Frequency = OHZ 0.3 VIN VKA ppm/ oC VIN VKA IK(OFF) R1 IREF IK VREF R2 Test Circuit 1 4 Ω 0.4 Test Circuit 2 Test Circuit 3 AME, Inc. Low Voltage Shunt Regulator AME4311 Reference Voltage vs. Temperature Reference Voltage @ 10mA(V) Dynamic Impedance 0.1-15mA (ohm) Dynamic Impedance vs. Temperature 0.35 0.33 0.31 0.29 0.27 0.25 0.23 0.21 0.19 0.17 0.15 -45 -5 25 55 Temperature 85 1.234 1.232 1.230 1.228 1.226 1.224 1.222 -45 -5 25 55 85 Temperature (oC) (oC) Reference Input Current vs. Temperature Line Transient Response, IK=10mA 0.12 VIN 0.10 0.08 1V / DIV Reference Input Current (uA) 0.14 0.06 VOUT 0.04 0.02 0.00 -45 -5 25 55 CH1 85 1.00V Temperature ( oC) High Current Operating Characteristics CH1 800mV Low Current Operating Characteristics T=25 OC IK- Cathode Current (µ µ A) IK- Cathode Current (mA) M1.00µS 1050 30 20 10 0 -10 -20 -30 -1.0 1.00V Frequency=100KHz 50 40 CH2 900 750 600 450 300 150 0 -0.5 0 0.5 1.0 VKA- Cathode Voltage (V) 1.5 -150 -1.0 -0.5 0 0.5 1.0 1.5 VKA- Cathode Voltage (V) 5 AME, Inc. Low Voltage Shunt Regulator AME4311 n Package Dimension TO-92-3 (bulk pack) SYMBOLS Top View Side View MILLIMETERS INCHES MIN MAX MIN MAX A 4.32 4.95 0.1701 0.1949 b 0.36 0.51 0.0142 0.0201 E 3.30 3.94 0.1299 0.1551 e 2.41 2.67 0.0949 0.1051 e1 1.14 1.40 0.0449 0.0551 L 12.70 15.49 0.5000 0.6098 R 2.16 2.41 0.0850 0.0949 W 0.41 0.56 0.0161 0.0220 D 4.45 4.95 0.1752 0.1949 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) SYMBOLS Top View Side View MILLIMETERS INCHES MIN MAX MIN MAX A 4.32 4.95 0.1701 0.1949 b 0.36 0.51 0.0142 0.0201 E 3.30 3.94 0.1299 0.1551 e 4.98 5.08 0.1961 0.2000 e1 2.49 2.54 0.0980 0.1000 L 12.70 15.49 0.5000 0.6098 R 2.16 2.41 0.0850 0.0949 W 0.41 0.56 0.0161 0.0220 D 4.45 4.95 0.1752 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. 6 AME, Inc. Low Voltage Shunt Regulator AME4311 n Package Dimension SOT-23 Top View Side View SYMBOLS D L H E £ c 1 MAX MIN MAX A 1.00 1.40 0.0394 0.0551 A1 0.00 0.15 0.0000 0.0059 b 0.35 0.50 0.0138 0.0197 C 0.09 0.25 0.0035 0.0098 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 e H Front View L A è1 1.90 BSC 2.40 3.00 0.35BSC 0o 10o 0.0748 BSC 0.09449 0.11811 0.0138BSC 0o 10 o A1 b INCHES MIN C e MILLIMETERS SOT-25 Top View Side View SYMBOLS MIN E L D £ c 1 S1 A MAX 0.0472REF 0.00 0.15 0.0000 0.0059 b 0.30 0.55 0.0118 0.0217 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 e L è1 Front View MIN A1 H e MAX 1.20REF INCHES S1 1.90 BSC 2.60 3.00 0.37BSC 0o 10 o 0.95BSC 0.07480 BSC 0.10236 0.11811 0.0146BSC 0o 10o 0.0374BSC b A1 A H MILLIMETERS 7 www.ame.com.tw E-Mail: [email protected] 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. , December 2003 Document: 2012-DS4311-A Corporate Headquarter U.S.A. (Subsidiary) AME, Inc. Analog Microelectronics, Inc. 2F, 189 Kang-Chien Road, Nei-Hu District Taipei 114, Taiwan, R.O.C. 3100 De La Cruz Blvd., Suite 201 Santa Clara, CA. 95054-2046 Tel: 886 2 2627-8687 Fax: 886 2 2659-2989 Tel : (408) 988-2388 Fax: (408) 988-2489