Texas Instruments TLVH431CPKG3 adjustable shunt voltage reference, ±1.5% tolerance, 70 mA output, 1.24 V to 18 V, SOT-89-3, Tape & Reel.
| Parameter | Value |
|---|---|
| Output type | Adjustable |
| Mounting | Surface Mount |
| Reference type | Shunt |
| Voltage - output | 18 V |
| Voltage - output (Min (Fixed)) | 1.24V |
| Output current | 70 mA |
| Current - cathode | 100 µA |
| Operating temperature | 0°C ~ 70°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Tolerance | ±1.5% |
| Case | TO-243AA |
The TLVH431CPKG3: It sinks up to 70 mA of cathode current while requiring only 100 µA minimum to regulate — the low minimum current makes it suitable for power-sensitive bias circuits where the reference must stay active even at light loads.
Housed in the TO-243AA (SOT-89-3) surface-mount package, the TLVH431CPKG3 occupies a compact footprint with a large backside tab for thermal transfer to the PCB copper plane.
The TL431IDBVR is a common shunt reference in the same class, but it carries a ±2.2% tolerance versus the TLVH431CPKG3's ±1.5%, and its 2.495 V fixed output differs from the adjustable 1.24 V minimum of this part. The packages also differ — TL431IDBVR comes in SOT-23-5, not SOT-89-3 — so a board layout change is required.