The LM4041 is a precision two-terminal shunt mode, bandgap voltage reference with a fixed reverse breakdown voltage of 1.225V. It is ideal for space-critical applications and is offered in a subminiature 3-pin SC70 surface-mount package (1.8mm x 1.8mm), which is 50% smaller than comparable devices in SOT23 surface-mount packages. Laser-trimmed resistors ensure precise initial accuracy. With a 100ppm/°C temperature coefficient, the device is offered in four grades of initial accuracy ranging from 0.1% to 1%. The LM4041 has a 60µA to 12mA shunt current capability with low dynamic impedance, ensuring stable reverse-breakdown voltage accuracy over a wide range of operating temperatures and currents. The LM4041 does not require an external stabilizing capacitor while ensuring stability with any capacitive load. The LM4041 is guaranteed over the temperature range -40°C to +125°C.
The LM4041 shunt reference provides a stable 1.225 V output over a wide current range (60 µA‑12 mA) and operates from –40 °C to +125 °C. It is offered in ultra‑small SC70‑3 and SOT23‑3 surface‑mount packages and does not require an external output capacitor.
Typical applications include portable battery‑powered equipment, notebook computers, cell phones and industrial process controls. The device features low output noise (20 µVRMS 10 Hz‑10 kHz) and can tolerate capacitive loads, making it suitable for high‑precision reference circuits.
| Fixed Reverse Breakdown Voltage | 1.225 V |
|---|---|
| Temperature Coefficient | 100 ppm/°C (max) |
| Operating Temperature Range | -40 °C to +125 °C |
| Operating Current Range | 60 µA to 12 mA |
| Output Noise | 20 µVRMS (10 Hz‑10 kHz) |
| Package Types | SC70‑3 (1.8 mm × 1.8 mm) and SOT23‑3 |
| Maximum Junction Temperature | +150 °C |
| External Capacitor Requirement | None required |
The LM4041 has a fixed reverse breakdown voltage of 1.225 V.
The device’s temperature coefficient is 100 ppm/°C (maximum).
It is guaranteed to operate from –40 °C up to +125 °C.
No, the LM4041 does not require an external capacitor and remains stable with any capacitive load.