Renesas FGA™ series, ISL21080DIH312Z-TK voltage reference, fixed 1.25V output, ±0.6% tolerance, 1.5µA supply, 7mA output, SOT-23-3 package, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Series | FGA™ |
| Output type | Fixed |
| Mounting | Surface Mount |
| Reference type | Series |
| Voltage - input | 2.7V ~ 5.5V |
| Voltage - output (Min (Fixed)) | 1.25V |
| Output current | 7 mA |
| Current - supply | 1.5µA |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Tolerance | ±0.6% |
| Case | TO-236-3, SC-59, SOT-23-3 |
| Noise - 0.1Hz to 10Hz | 30µVp-p |
| Noise - 10Hz to 10kHz | 52µVrms |
| Temperature coefficient | 50ppm/°C |
Housed in a standard SOT-23-3 package (also listed as TO-236-3 / SC-59), the ISL21080DIH312Z-TK is a surface-mount part that shares the same three-pin footprint as countless other SOT-23 references. No surprises for the layout engineer — just a bypass cap on the input and a load cap on the output per the datasheet recommendation.
That means it is available through franchised and independent channels without LTB risk.
Yes, it is ROHS3 compliant.
Yes. The input voltage range is 2.7V to 5.5V, so a 3.3V rail is well within the operating window. The 1.25V output is below the rail, which is typical for a series reference.
The REF3325 outputs a fixed 2.5V, while the ISL21080DIH312Z-TK outputs 1.25V. The REF3325 also runs at higher quiescent current (typically 8.5µA) versus the ISL21080's 1.5µA. If your system needs a 2.5V reference and can spare the extra supply current, the REF3325 is a direct alternative; if you need 1.25V or the lowest possible quiescent draw, the ISL21080DIH312Z-TK is the better fit.