■ 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.

■ 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