AMS431LV Description Features The AMS431LV is a low voltage three terminal ¾ Low voltage operation (2.5V) adjustable shunt regulator with a guaranteed ¾ Adjustable output voltage V0 = VREF to 18V thermal temperature ¾ Wide operating current range 150μA to 90mA ranges. The output voltage can be set to any value ¾ Low dynamic output impedance 0.08Ω (Typ.). between VREF (approximately 2.5 V) to 18V with two ¾ Trimmed bandgap design up to + 0.5%. external resistors. This device has a typical output ¾ ESD rating is 6KV(Per MIL-STD-883D). impedance of 0.08Ω. ¾ RoHS Compliant and 100% Lead (Pb)-Free. stability over applicable Active output circuitry provides a very sharp turn on characteristic, making Application this device excellent replacement for Zener diodes in many applications. The AMS431LV is characterized for operation from -40oC to 125oC, and five package options (SOT-23-3, SOT-23-5, SOP-8, TO-92 and SOT-89) allow the designer the opportunity to select the proper package for their applications. ¾ Linear Regulators ¾ Adjustable Supplies ¾ Switching Power Supplies ¾ Battery Operated Computers ¾ Instrumentation ¾ Computer Disk Drives Symbol Diagram Block Diagram Cathode Ref Cathode + Ref Vref Anode Anode 1 Advanced Monolithic Systems http://www.ams-semitech.com AMS431LV Marking Information Package SOT-23-3 SC59-3L SOT-23-3 SOT-23-5L SOP-8 SOT-89 TO-92 Marking Production Batch Number 431x The last character is the batch number. 431Sx Lead-Free Package Lead-free package is indicated by a dot on top of the last character. (AMS431LV) 431x AMS431LV XXXX-LF AMS431LV XXXX is the batch number. Lead-free package indicated by LF after XXXX. XXXX-LF AMS431LV XXXX-LF Pin Configuration SOT-23-3 SOT-23-3 SOT-23-3L (SC59-3L) (Order as AMS431LV) SOT-23-5L TO-92 SOP-8 is (Top View) 2 Advanced Monolithic Systems http://www.ams-semitech.com SOT-89 AMS431LV Absolute Maximum Ratings Parameter Symbol Maximum Units Cathode Voltage VKA 18 V Continuous Cathode Current I KA 90 mA Reference Current I REF 1 mA TJ 150 °C TSTG -65 to 150 °C Operating Junction Temperature Range Storage Temperature Range 120 (SOT-89) 230 (SOT-23-3) θ JA Thermal Resistance °C/W 230 (SOT-23-5L) 150 (SOP-8) 220 (TO-92) Lead Temperature (Soldering) 10 seconds TLEAD 260 °C Electrical Characteristics TA=25℃, unless otherwise specified. TEST PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT 2483 2495 2507 2470 2495 2520 2445 2495 2545 -- -14 -- mV -- 0.2 2.7 mV/V -- 0.3 4 μA -- -0.13 -- μA CIRCUIT 0.5% Reference Voltage 1% VREF 1 VKA = VREF, IKA = 10mA 2% Deviation of reference voltage over full VKA = VREF, IKA = 10mA mV VI(dev) 1 change in cathode voltage ΔVREF ΔVKA 2 Reference current IREF 2 II(dev) 2 IMIN 1 VKA = VREF -- 0.15 0.3 mA Off-state cathode current IOFF 3 VKA = 18V, VREF = 0 -- 0.4 1 μA Dynamic impedance ZKA 1 -- 0.08 0.7 Ω temperature range Ratio of change in reference voltage to the Deviation of Reference current over full temperature range Minimum cathode current for regulation TA = -40°C to 125°C IKA = 3mA, ΔVKA = 10 V - VREF IKA = 10mA, R1=10kΩ, R2 = ∞ IKA = 10mA, R1=10kΩ, R2 = ∞, TA = 0°C to 125°C IKA = 1mA to 90mA, VKA = VREF, f ≤ 1kHZ 3 Advanced Monolithic Systems http://www.ams-semitech.com AMS431LV Typical Performance Characteristics Cathode Current VS. Cathode Voltage CATHODE CURRENT Vs. CATHODE VOLTAGE VKA = Vref TA = 25oC 50 Cathode Current (mA) Cathode Current (uA) 75 1200 25 0 -25 VKA=Vref TA=25 ℃ 1000 800 600 400 200 -50 0 -75 -200 -100 -2 -1 0 1 2 -1 3 Cathode Voltage (V) 0 4 Advanced Monolithic Systems 1 2 Cathode Voltage (V) http://www.ams-semitech.com 3 AMS431LV Test Circuits Input Input V KA Input VKA VKA I off I KA I KA R1 Iref R2 Vref Vref R1 VKA = Vref (1+ ) + Iref x R1 R2 Test Circuit 1: Test Circuit 2: Test Circuit 3: VKA = VREF VKA > VREF Off State Current Application Diagram AMS431LV Thermal Consideration Package Power Rating Power Rating Power Rating (TA=25°C) (TA=50°C) (TA=70°C) SOT-23-3 (θJA=230°C/W) 435mW 326mW 239mW SOT-23-5L (θJA=230°C/W) 435mW 326mW 239mW TO-92 (θJA=220°C/W) 455mW 341mW 250mW 1. Maximum junction temperature is 125°C 2. θJA is measured with packages mounted onboard under still-air condition with 1W power applied. 3. Power rating is calculated using PD = (TJ – TA) /θJA, where TJ denotes junction temperature and TA denotes ambient temperature. 5 Advanced Monolithic Systems http://www.ams-semitech.com AMS431LV OUTLINE DRAWING SOT-23-3 C DIMENSIONS INCHES MM MIN MAX MIN MAX J H B N DIM A B C D E F G H J K L D A E G F K L 0.110 0.047 0.083 0.035 0.070 0.018 0.015 0.0005 0.034 0.003 - 0.120 0.055 0.104 0.040 0.080 0.024 0.020 0.004 0.040 0.007 0.027 2.80 1.20 2.10 0.89 1.78 0.45 0.37 0.013 0.887 0.085 - 3.04 1.40 2.64 1.03 2.05 0.60 0.51 0.10 1.02 0.18 0.69 OUTLINE DRAWING SC59-3L (SOT-23-3L) H DIM A A A1 B C D H E e e1 L1 L Q E A1 B e1 D L SC 59-3L Q L1 C N DIMENSIONS INCHE MM MIN MAX MIN MAX 0.035 0.043 0.90 1.10 0.0004 0.005 0.01 0.13 0.012 0.020 0.30 0.50 0.004 0.008 0.09 0.20 0.110 0.122 2.80 3.10 0.098 0.122 2.50 3.10 0.059 0.067 1.50 1.70 0.037REF 0.075REF 0.008 0.014 0℃ 0.022 0.031 10℃ 0.95REF 1.90REF 0.20 0.35 0℃ 0.55 0.80 10℃ OUTLINE DRAWING SOT-23-5L K B H DIMN D A A B C D E F H J K F E C J DIMENSIONS INCHES MM MIN MAX MIN MAX 0.110 0.059 0.036 0.014 0.0035 0.102 0.120 0.070 0.051 0.020 0.037 0.075 0.006 0.008 0.118 6 Advanced Monolithic Systems http://www.ams-semitech.com 2.80 1.50 0.90 0.35 0.090 2.60 3.05 1.75 1.30 0.50 0.95 1.90 0.15 0.20 3.00 AMS431LV OUTLINE DRAWING TO-92 DIMENSIONS INCHES MM MIN MAX MIN MAX A DIMN B D A B E F G H J K E G F H K J 0.175 0.170 0.500 0.016 0.045 0.095 0.080 0.125 0.205 0.210 0.610 0.021 0.055 0.105 0.105 0.165 4.445 4.318 12.70 0.407 1.143 2.413 2.032 3.175 5.207 5.334 15.50 0.533 1.397 2.667 2.667 4.191 OUTLINE DRAWING SOP-8 1 8 2 7 3 6 4 5 D B N DIM A A1 B B1 C D H E B1 A1 A E H C DIMENSIONS INCHES MM MIN MAX MIN MAX 0.0532 0.0688 0.0040 0.0098 0.0130 0.0200 0.050 BSC 0.0075 0.0098 0.1890 0.1968 0.2284 0.2440 0.1497 0.1574 1.35 1.75 0.10 0.25 0.33 0.51 1.27 BSC 0.19 0.25 4.80 5.00 5.80 6.20 3.80 4.00 OUTLINE DRAWING SOT-89 N DIM SOT-89 A C D A B C D E F G H I J K L M J M K E F B L H G I DIMENSIONS INCHES MM MIN MAX MIN MAX 0.173 0.181 0.159 0.167 0.067 0.075 0.051 0.059 0.094 0.102 0.035 0.047 0.118REF 0.059REF 4.400 4.600 4.050 4.250 1.700 1.900 1.300 1.500 2.400 2.600 0.890 1.200 3.00REF 1.50REF 0.016 0.020 0.055 0.063 0.014 0.016 10°TYP 0.028REF 0.400 0.520 1.400 1.600 0.350 0.410 10°TYP 0.70REF 7 Advanced Monolithic Systems http://www.ams-semitech.com AMS431LV Disclaimer: • AMS reserves the right to make changes to the information herein for the improvement of the design and performance without further notice! Customers should obtain the latest relevant information before placing orders and should verify that such information is complete and current. • All semiconductor products malfunction or fail with some probability under special conditions. When using AMS products in system design or complete machine manufacturing, it is the responsibility of the buyer to comply with the safety standards strictly and take essential measures to avoid situations in which a malfunction or failure of such AMS products could cause loss of body injury or damage to property. • AMS will supply the best possible product for customers! 8 Advanced Monolithic Systems http://www.ams-semitech.com