Low-voltage adjustable precision shunt regulators
The TLVH431/TLVH432 family provides low‑voltage operation down to 1.24 V and an adjustable output voltage from the reference up to 18 V, making them suitable for isolated feedback circuits and as replacements for low‑voltage Zener diodes. They feature a typical output impedance of 0.25 Ω and a wide cathode current range of 55 µA to 80 mA.
The datasheet lists multiple package options (SOT‑23‑3, SOT‑89, SC‑70, TO‑92) with alternative pinouts for the TLVH432, includes absolute maximum ratings, electrical characteristics, and mechanical dimensions, and provides ordering part numbers and tolerances for each variant.
| Low‑Voltage Operation | Down to 1.24 V |
|---|---|
| Cathode Current Range | 55 µA to 80 mA |
| Reference Voltage (VREF) | 1.24 V |
| Adjustable Output Voltage | V O = V REF to 18 V |
| Operating Temperature Range | -40 °C to 125 °C |
The reference voltage VREF is 1.24 V.
The cathode current can range from 55 µA up to 80 mA.
TLVH432 is offered in SOT‑23‑3 and SOT‑89 packages with alternative pinouts.