说明

• Typical Application for LM431SAI Current Limit or Current Source Regulator. The LM431SA is 3-terminal the output adjustable regulators with thermal stability over operating temperature range. The output voltage can be set any value between VREF (approximately 2.5V) and 36V with two external resistors. These devices have a typical dynamic output impedance of 0.2 ohm. Active output circuit provides a sharp turn-on characteristic, making these devices excellent replacement for zener diodes in many applications