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S-1131B21UA-N4GTFU

S-1131B21UA-N4GTFU Description

The S-1131B21UA-N4GTFU is a linear regulator IC designed by ABLIC Inc., a leading manufacturer in the power management integrated circuit (PMIC) industry. This device is specifically tailored for applications requiring a fixed output voltage of 2.1V and a maximum output current of 300mA. The regulator is housed in a compact SOT89-3 package, making it suitable for surface mount applications where space is a critical consideration.

S-1131B21UA-N4GTFU Features

• Output Type: Fixed, ensuring a stable and consistent output voltage of 2.1V.
• Input Voltage Range: Capable of handling a maximum input voltage of 6.5V, providing flexibility in power source selection.
• Output Current: Delivers a robust 300mA of output current, making it ideal for a variety of low to medium power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.55V at 100mA, the S-1131B21UA-N4GTFU ensures high efficiency even at low input-to-output voltage differentials.
• Low Quiescent Current: Features an ultra-low quiescent current of just 1µA, significantly reducing power consumption in standby modes.
• Enable Function: Includes an enable control feature, allowing for dynamic control of the regulator's operation.
• Over-Current Protection: Equipped with over-current protection, safeguarding the device and connected circuits from potential damage due to excessive current.
• High PSRR: Achieves a high power supply rejection ratio (PSRR) of 70dB at 1kHz, minimizing the impact of input voltage noise on the output.
• Compliance and Packaging: ROHS3 compliant and available in a moisture sensitivity level (MSL) of 1, ensuring environmental sustainability and reliability in various operating conditions. The device is packaged in tape and reel (TR) format, facilitating efficient handling and assembly processes.

S-1131B21UA-N4GTFU Applications

The S-1131B21UA-N4GTFU is well-suited for a range of applications due to its robust performance and compact design. Key applications include:

• Consumer Electronics: Ideal for portable devices such as smartphones, tablets, and wearables where space and power efficiency are paramount.
• Industrial Systems: Suitable for low-power industrial sensors and controllers that require stable voltage regulation and minimal power consumption.
• Medical Devices: Applicable in medical equipment where reliability and low noise are essential, such as portable diagnostic tools and wearable health monitors.
• Automotive Electronics: Can be used in automotive applications where a compact and efficient power solution is needed, such as in-vehicle infotainment systems and electronic control units.

Conclusion of S-1131B21UA-N4GTFU

The S-1131B21UA-N4GTFU stands out as a reliable and efficient linear regulator IC, offering a combination of low dropout voltage, low quiescent current, and high PSRR. Its compact SOT89-3 package and surface mount compatibility make it an excellent choice for space-constrained applications. While marked as "Not For New Designs," the S-1131B21UA-N4GTFU remains a viable option for existing projects and legacy systems, providing consistent performance and reliability. For engineers and designers seeking a robust power management solution, the S-1131B21UA-N4GTFU is a proven choice, backed by ABLIC Inc.'s commitment to quality and innovation.