Texas Instruments

LP2992IM5X-1.5

LP2992IM5X-1.5 Description

The LP2992IM5X-1.5 is a fixed-output linear voltage regulator designed by Texas Instruments, offering a stable 1.5V output voltage with a maximum output current of 250mA. This regulator is housed in a compact SOT23-5 package, making it suitable for surface-mount applications. It features a low dropout voltage of 0.85V at 250mA, ensuring efficient operation even at low input-to-output voltage differentials. The regulator is designed with an enable control feature, allowing for precise power management and control. Additionally, it includes over-current, over-temperature, and short-circuit protection features, enhancing its reliability and robustness in various operating conditions.

LP2992IM5X-1.5 Features

• Fixed Output Voltage: Provides a stable 1.5V output, ideal for applications requiring a precise and consistent voltage level.
• Low Dropout Voltage: With a maximum dropout voltage of 0.85V at 250mA, the LP2992IM5X-1.5 ensures high efficiency, especially in low-voltage applications.
• Enable Control Feature: Allows for dynamic power management, enabling the regulator to be turned on and off as needed, which is beneficial for power-saving applications.
• Protection Features: Over-current, over-temperature, and short-circuit protections safeguard the regulator and connected components, enhancing overall system reliability.
• Low Quiescent Current: A quiescent current of 95 µA ensures minimal power consumption during operation, making it suitable for battery-powered devices.
• High PSRR: A power supply rejection ratio (PSRR) of 45dB at 1kHz helps in filtering out noise from the input supply, resulting in a cleaner output voltage.
• Compact Packaging: The SOT23-5 package is ideal for space-constrained designs, facilitating integration into small form-factor devices.

LP2992IM5X-1.5 Applications

The LP2992IM5X-1.5 is well-suited for a variety of applications where a stable and efficient power supply is required. Its low dropout voltage and compact size make it particularly useful in portable electronic devices, such as:

• Battery-Powered Devices: Ideal for applications where the input voltage may drop close to the required output voltage, ensuring continuous operation even as the battery discharges.
• Low-Power Systems: Suitable for microcontrollers, sensors, and other low-power components that require a stable 1.5V supply.
• Consumer Electronics: Can be used in devices like smartphones, tablets, and wearables where space and power efficiency are critical.
• Industrial Applications: Applicable in compact industrial devices that require reliable power regulation and protection features.

Conclusion of LP2992IM5X-1.5

The LP2992IM5X-1.5 from Texas Instruments is a robust and efficient linear voltage regulator designed for applications requiring a stable 1.5V output. Its low dropout voltage, compact packaging, and comprehensive protection features make it an ideal choice for a wide range of low-power and space-constrained applications. Despite being marked as obsolete, the LP2992IM5X-1.5 remains a reliable option for engineers and designers looking for a high-performance regulator that offers precise control and enhanced reliability.