ZTLV431AFTA Diodes Incorporated

ZTLV431 1.24V Cost effective shunt regulator Description The ZTLV431 is a three terminal adjustable The ZTLV431 can be used as a replacement for shunt regulator offering excellent temperature zener diodes in many applications requiring an stability and output current handling capability improvement in zener performance. up to 20mA. The output voltage may be set to The ZTLV431 is available as standard as an any chosen voltage between 1.24 volts and 10 A grade which has an initial tolerance of 1% volts by selection of two external divider and covers the -40C to 125C temperature resistors. range as standard. Features Applications Low voltage operation V = 1.24V REF Opto-coupler linearization Temperature range -40 to 125C Linear regulators Reference voltage tolerance at 25C Improved Zener 1% ZTLV431A Variable reference Typical temperature drift Pin connections 4 mV (0C to 70C) 6 mV (-40C to 85C) ZTLV431 F (SOT23) 11mV (-40C to 125C (top view) 100 A minimum cathode current 0.25 typical output impedance Ref 3 Adjustable output voltage 1.24V to 10V 1 Anode Cathode 2 Ordering information Tol. Order code Package Part mark Status Reel size Tape width Quantity (inches) (mm) per reel 1% ZTLV431AFTA SOT23 S1A Active 7 (180mm) 8 3,000 Issue 7 - April 2008 1 www.zetex.com Zetex Semiconductors plc 2008ZTLV431 Absolute maximum ratings Cathode voltage (V) 10V KA Continuous cathode current (I ) -20 to 20mA KA Reference input current range (I ) -0.05 to 3mA REF Operating junction temperature -40 to 150C Storage temperature -55 to 150C Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings, for extended periods, may reduce device reliability. Unless otherwise stated voltages specified are relative to the ANODE pin. Package thermal data Package P JA DIS T =25C A SOT23 380C/W 330 mW SOT23F 160C/W 780 mW Recommended operating conditions Min. Max. Units V cathode voltage V 10 V KA REF I cathode current 0.1 15 mA KA T operating ambient temperature range -40 125 C A Issue 7 - April 2008 2 www.zetex.com Zetex Semiconductors plc 2008