STMicroelectronics L4931CD12 Low Drop Voltage Regulator

The L4931CD12 is a high-performance, low drop voltage regulator designed and manufactured by STMicroelectronics, a global leader in semiconductor solutions. This device is specifically engineered to offer a very low dropout voltage and low quiescent current, making it an ideal choice for battery-powered applications where energy efficiency is paramount.

With an ability to provide up to 250 mA of output current, the L4931CD12 is well-suited for moderate load conditions. It operates within an input voltage range of 2.5V to 20V, which provides flexibility in various power supply configurations. The output voltage is fixed at 1.2V, ensuring a stable and regulated supply for sensitive electronic components.

One of the key features of the L4931CD12 is its low dropout voltage, which is typically just 0.4V at maximum output current. This low dropout allows the regulator to continue delivering a consistent output even when the supply voltage is very close to the output voltage, thus maximizing battery life and efficiency. Additionally, the low quiescent current, which is typically 0.4 mA, minimizes the power consumption when the device is in idle mode, further extending battery life.

The L4931CD12 also comes with several built-in protection features that safeguard the device and the application it is used in. These include thermal shutdown, limiting the internal junction temperature, and current limiting to prevent damage from overcurrent conditions. These features ensure long-term reliability and stability of the voltage regulator under various operating conditions.

Designed in a compact SO-8 package, the L4931CD12 is suitable for space-constrained applications. It's a versatile component that can be used in a wide range of electronic devices, including portable and wearable technology, medical devices, and any other systems requiring a high-efficiency, low-voltage power supply.

In summary, the STMicroelectronics L4931CD12 is a robust, low drop voltage regulator that offers excellent performance for a variety of applications. Its low power consumption, stable output, and protective features make it a reliable choice for designers looking to optimize their power management solutions.