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APL431CDC-TRL Datasheet(PDF) 1 Page - Anpec Electronics Coropration |
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APL431CDC-TRL Datasheet(HTML) 1 Page - Anpec Electronics Coropration |
1 / 16 page Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003 APL431 www.anpec.com.tw 1 ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Adjustable Precision Shunt Regulator Features General Description Applications The APL431 is a 3-terminal adjustable voltage refer- ence with specified thermal stability over applicable commercial temperature ranges. Output voltage may be set to any value between V ref (2.5 V) and 20 V with two external resistors (see Figure 2). When used with an photocoupler, the APL431 is an ideal voltage reference in isolated feedback circuits for 2.5V to 12V switching-mode power supplies. This device has a typical output impedance of 0.1 Ω. Active output cir- cuitry provides a very sharp turn-on characteristic, making the APL431 excellent replacements for ze- ner diodes in many applications, including on-board regulation and adjustable power supplies. ••••• Precise Reference Voltage to 2.500V ••••• Guaranteed 0.5%, 1% or 2% Reference Voltage Tolerance ••••• Sink Current Capability, 1mA to 100mA ••••• Quick Turn-on ••••• Adjustable Output Voltage, V O = Vref to 20V ••••• Low Operational Cathode Current, 250µA Typical ••••• 0.1 Ω Typical Output Impedance ••••• SOT-23, SOT-23-5, SOT-89, SO-8, TO-92 and TO-92S Packages ••••• Linear Regulators ••••• Adjustable Power Supply ••••• Switching Power Supply Cathode Anode REF Symbol Functional Diagram Vref + _ Cathode REF Anode SOT-23 (Top View) REF ANODE CATHODE 12 3 SOT-89 (Top View) REF ANODE CATHODE 12 3 REF ANODE CATHODE 3 2 1 TO-92 (Top View) SO-8 (Top View) REF ANODE CATHODE ANODE NC ANODE ANODE NC 1 2 3 4 8 7 6 5 REF ANO DE NC NC CATHO DE 12 3 4 5 SOT-23-5 (Top View) REF ANODE CATHODE 3 2 1 TO-92S (Top View) |
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