ROHM Semiconductor

BA033LBSG-TR

BA033LBSG-TR Description

The BA033LBSG-TR is a linear regulator IC designed by ROHM Semiconductor, a leading manufacturer in the power management integrated circuit (PMIC) category. This device is specifically tailored for applications requiring a fixed 3.3V output voltage and a maximum output current of 150mA. The BA033LBSG-TR is housed in a surface-mount SMP5 package, making it suitable for compact and space-efficient designs. It features a maximum input voltage of 7V and a low quiescent current of 15 µA, which is essential for energy-efficient applications. The regulator also includes an enable control feature, allowing for dynamic power management and system optimization.

BA033LBSG-TR Features

• Low Quiescent Current: The BA033LBSG-TR boasts a low quiescent current of 15 µA, which is ideal for battery-powered and low-power consumption applications.
• High PSRR: With a power supply rejection ratio (PSRR) ranging from 66dB to 58dB at 400Hz, the BA033LBSG-TR ensures minimal noise and ripple in the output voltage, providing stable power supply to sensitive electronic components.
• Fixed Output Voltage: The regulator offers a fixed output voltage of 3.3V, simplifying design and ensuring consistent performance across various applications.
• Low Dropout Voltage: The BA033LBSG-TR has a maximum dropout voltage of 0.15V at 50mA, allowing it to operate efficiently even when the input voltage is close to the output voltage.
• Protection Features: The device includes over-current and over-temperature protection, safeguarding both the regulator and connected components from potential damage.
• Enable Control: The enable feature allows for dynamic control of the regulator's operation, enabling power-saving modes and enhancing overall system efficiency.
• Surface-Mount Packaging: The SMP5 package ensures easy integration into modern PCB designs, facilitating compact and reliable electronic systems.

BA033LBSG-TR Applications

The BA033LBSG-TR is well-suited for a variety of applications where stable and efficient power regulation is required. Key applications include:

• Consumer Electronics: Ideal for portable devices such as smartphones, tablets, and wearables where low power consumption and high efficiency are critical.
• Industrial Equipment: Suitable for industrial control systems, sensors, and IoT devices that require reliable power supply and minimal power loss.
• Communication Devices: Applicable in routers, modems, and other communication equipment where stable voltage regulation is essential for optimal performance.
• Medical Devices: Can be used in medical monitoring equipment and portable medical devices that demand high reliability and low power consumption.

Conclusion of BA033LBSG-TR

The BA033LBSG-TR is a versatile and efficient linear regulator designed to meet the demands of modern electronic systems. Its low quiescent current, high PSRR, and fixed output voltage make it an excellent choice for applications requiring stable and efficient power regulation. The inclusion of over-current and over-temperature protection features ensures robustness and reliability, while the enable control allows for enhanced power management. Despite being marked as obsolete, the BA033LBSG-TR remains a valuable component for designers seeking a compact, efficient, and reliable power solution.