The L432 is a three-terminal adjustable shunt regulator utilizing an accurate 1.24V band gap reference. The output voltage can be set to any value between 1.24V (VREF) to 18V with two external resistors as shown in the typical application circuit. The device exhibit a wide operating current range of 0.2 to 100 mA with a typical dynamic impedance of 0.25Ω. Active output circuitry provides a very sharp turn-on characteristic, making the L432 excellent replacements for low-voltage zener diodes in many applications, including on-board regulation and adjustable power supplies. When used with an opto-coupler, the L432 is ideal voltage reference in isolated feedback circuits for 3.3V switching-mode power supplies. The L432 shunt regulator is available in two voltage tolerances (0.5% & 1.0%) and three package options (TO-92, SOT-23-3 and SO-8).
The NIKO-SEM L432 is a three-terminal adjustable shunt regulator utilizing an accurate 1.24V band gap reference. The device allows the output voltage to be set between 1.24V and 18V using two external resistors, making it suitable for applications requiring low-voltage zener diode replacements or precision voltage references.
| Reference Voltage (Typical) | 1.24V |
|---|---|
| Output Voltage Range | 1.24V to 18V |
| Operating Current Range | 0.2 to 100 mA |
| Typical Dynamic Impedance | 0.25 Ohm |
| Tolerance Options | 0.5% & 1.0% |
The device is available in TO-92, SOT-23-3, and SO-8 packages.
Yes, it is pin to pin compatible with TLV431A, TS431, SC431L & AS432.
The operating cathode current rating is 100 mA.