Texas Instruments

LP2985IM5-3.2

LP2985IM5-3.2 Description

The LP2985IM5-3.2 is a fixed output linear regulator designed by Texas Instruments, offering a stable 3.2V output voltage with a maximum output current of 150mA. This regulator is housed in a compact SOT23-5 package, making it ideal for space-constrained applications. The device features a maximum input voltage of 16V and a dropout voltage of only 0.58V at 150mA, ensuring efficient operation even at low input-to-output voltage differentials. The LP2985IM5-3.2 also includes an enable control feature, allowing for dynamic power management and reduced quiescent current consumption of 95µA when enabled. Additionally, it provides robust protection features such as over-current, over-temperature, and short-circuit protection, ensuring reliable operation under various conditions. Despite being marked as obsolete, the LP2985IM5-3.2 remains a viable option for designs legacy and applications requiring a reliable, low-dropout linear regulator.

LP2985IM5-3.2 Features

• Output Type: Fixed 3.2V output voltage, ensuring stable power supply for sensitive electronics.
• Input Voltage Range: Capable of handling input voltages up to 16V, providing flexibility in power source selection.
• Output Current: Delivers a maximum output current of 150mA, suitable for powering a wide range of low-power devices.
• Low Dropout Voltage: With a maximum dropout voltage of 0.58V at 150mA, the regulator maintains high efficiency even at low input-to-output voltage differences.
• Enable Control: Features an enable pin, allowing for dynamic power management and reduced quiescent current consumption of 95µA when enabled.
• Protection Features: Over-current, over-temperature, and short-circuit protection ensure reliable operation and protect against common failure modes.
• Compact Packaging: Housed in a SOT23-5 package, ideal for space-constrained applications.
• Moisture Sensitivity Level: MSL 1 (Unlimited), making it suitable for various manufacturing environments.
• Power Supply Rejection Ratio: Achieves a PSRR of 45dB at 1kHz, minimizing the impact of input voltage noise on the output.

LP2985IM5-3.2 Applications

The LP2985IM5-3.2 is well-suited for a variety of applications requiring a stable and efficient power supply. Its low dropout voltage and compact size make it ideal for battery-powered devices, portable electronics, and embedded systems where space and power efficiency are critical. The enable control feature allows for dynamic power management, making it suitable for applications that require power sequencing or low-power standby modes. The regulator's robust protection features ensure reliable operation in harsh environments, making it a reliable choice for industrial and automotive applications. Specific use cases include:

• Battery-Powered Devices: Ideal for powering low-power sensors, microcontrollers, and other components in portable electronics.
• Embedded Systems: Suitable for providing a stable power supply in compact embedded systems, such as IoT devices and wearables.
• Industrial Applications: Robust protection features make it reliable for industrial control systems and instrumentation.
• Automotive Electronics: Suitable for automotive applications requiring a compact and efficient power supply with reliable protection features.

Conclusion of LP2985IM5-3.2

The LP2985IM5-3.2 is a versatile and reliable fixed output linear regulator that offers a stable 3.2V output with a maximum current of 150mA. Its low dropout voltage, compact packaging, and robust protection features make it an excellent choice for a wide range of applications, particularly those requiring space efficiency and high reliability. Despite being marked as obsolete, the LP2985IM5-3.2 remains a valuable option for legacy designs and applications where its unique features and performance benefits are essential.