NJM431M

NJM431 ADJUSTABLE PRECISION SHUNT REGULATOR ■ GENERAL DESCRIPTION The NJM431 is a 3 terminal adjustable shunt regulator. The output voltage may be set to any value between VREF (about 2.5V) and 36V by two resistors. Output circuitry shows a sharp turn-on characteristics. Applications include shunt regulators, series regulators for small power and isolation regulators with photo couplers. ■ PACKAGE OUTLINE NJM431D (DIP8) NJM431M (DMP8) ■ FEATURES Operating Voltage (VKA = VREF to 36V) Fast Turn-On Response Cathode Current (1mA to 100mA) Low Dynamic Output Impedance (0.2Ωtyp.) Load Regulation typically (0.1%) Package Outline DIP8, DMP8, SOT-89 Bipolar Technology NJM431U (SOT-89) ■ PIN CONFIGURATION NJM431U ■ EQUIVALENT CIRCUIT NJM431D NJM431M Ver.2012-06-15 -1- NJM431 ■ BLOCK DIAGRAM ■ ABSOLUTE MAXIMUM RATINGS PARAMETER Cathode Voltage (note) Continuous Cathode Current Reference Input Current SYMBOL VKA IK IREF Power Dissipation PD Operating Temperature Topr Storage Temperature Range Tstg (note) Unless specified, all voltage value are with respect to the anode terminal. RATINGS 37 -100 to 150 -0.05 to 10 (DIP8) 700 (DMP8) 300 (SOT89) 350 -40 to +85 -40 to +125 (Ta=25°C) UNIT V mA mA mW mW mW ºC ºC ■ RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL MIN. TYP. Cathode Voltage Cathode Current VKA VREF - IK 1 - MAX. 36 100 UNIT V mA ■ ELECTRICAL CHARACTERISTICS (Ta=25C) PARAMETER SYMBOL TEST CONDITION Reference Voltag...