FEATURES
․Low-Voltage Operation: Down to 1.24V ․1% Reference-Voltage Tolerance ․Adjustable Output Voltage, Vo=Vref to 12V ․Low Operational Cathode Current….50μA ․0.25Ω Typical Output Impedance ․SOT-23 and TO-92 Packages DESCRIPTION
Output voltage may be set to any value between Vref (1.24V) and 12V with two external resistors (see Figure 2). Active output circuitry provides a very sharp turn-on characteristic, making the AT431 excellent replacements for low-voltage zener diodes in many applications, including onboard regulation and adjustable power supplies. Application ․Linear Regulators ․Voltage Reference for Power Circuit Block Diagram and Symbol Aimtron reserves the right without notice to change this circuitry and specifications. 7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: 2/8/2006 REV:1.1 Email: service@aimtron.com.tw 1 AT431 Preliminary Product Information 1.24V Low-Voltage Adjustable Precision...