SP431

SP431 High Voltage Adjustable Precision Shunt Regulators DESCRIPTION The SP431 is high-voltage three-terminal adjustable voltage references, with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (2.5V) and 36V with two external resistors. These devices have a typical output impedance of 0.25Ω. Active output circuitry provides a very sharp turn-on characteristic, making the SP431 excellent replacements for low-voltage Zener diodes in many applications, including onboard regulation and adjustable power supplies. APPLICATIONS Battery Power Equipment Linear Regulators Switch Power Supply Cellular Phone Digital Cameras Computer Disk Drivers Instrumentation FEATURES Low Output Noise Adjustable Output Voltage, VO = Vref to 36 V Low Operational Cathode Current 0.25Ω Typical Output Impedance ( SOT-23 ) PIN CONFIGURATION ( SOT-89 ) ( TO-92 ) PART MARKING ( SOT-23 ) ( SOT-89 ) ( TO-92 ) 2013/03/13 Ver.4 Page 2 http://www.Datasheet4U.com SP431 High Voltage Adjustable Precision Shunt Regulators PIN DESCRIPTION: SP431AS23RGB/SP431BS23RGB/ SP431AS89RGB/ SP431BS89RGB Pin 1 2 3 Pin 1 2 3 Pin 1 2 3 Symbol R C A Symbol R A C Symbol C R A Description REF CATHODE ANODE Description REF ANODE CATHODE Description CATHODE REF ANODE Part Marking 31AYW 31BYW SP431A SP431B 31CAYW 31CBYW SP431A SP431B PIN DESCRIPTION: SP431AT92AGB/SP431BT92AGB PIN DESCRIPTION: SP431CAS23RGB/SP431CBS23RGB ORDERING INFORMA...