FAN431A: Adjustable/2.5 V, 1% Tolerance Shunt Regulator

The FAN431/FAN431A/FAN431L are three terminal output adjustable regulators with thermal stability over operating temperature range. The output voltage can be set any value between VREF (approximately 2.5 V) and 36 V with two external resistors. These devices have a typical dynamic output impedance of 0.2 Ω. Active output circuit provides a sharp turn-on characteristic, making these devices excellent replacement for Zener Diodes in many applications.

Features

• Programmable Output Voltage to 36 V
• Low Dynamic Output Impedance 0.2 Ω Typical
• Sink Current Capability of 1.0 to 100 mA
• Equivalent Full-Range Temperature Coefficient of 50 ppm/°C Typical
• Temperature Compensated for Operation Over Full Rated Operating Temperature Range
• Low Output Noise Voltage
• Fast Turn-on Response