Texas Instruments

LP5951MF-1.3

LP5951MF-1.3 Description

The LP5951MF-1.3 is a fixed-output linear voltage regulator designed by Texas Instruments. This device is part of the Linear & Switching Voltage Regulators category and is housed in a Surface Mount SOT23-5 package. It offers a fixed output voltage of 1.3V and is capable of delivering up to 150mA of output current. The regulator is designed to operate with an input voltage range up to 5.5V, making it suitable for a variety of low-voltage applications. Despite its small form factor, the LP5951MF-1.3 provides robust performance with a maximum dropout voltage of 0.35V at 150mA, ensuring efficient operation even under high load conditions.

LP5951MF-1.3 Features

• Output Type: Fixed
• Output Voltage: 1.3V
• Output Current: 150mA
• Input Voltage Range: Up to 5.5V
• Dropout Voltage: 0.35V @ 150mA
• Low Quiescent Current: 55 µA
• Low Supply Current: 70 µA
• Control Features: Enable
• Protection Features: Over Current, Over Temperature, Short Circuit
• PSRR: 60dB to 50dB (100Hz to 10kHz)
• Package Type: SOT23-5
• Mounting Type: Surface Mount
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Product Status: Obsolete
• REACH Status: REACH Unaffected

The LP5951MF-1.3 stands out due to its low dropout voltage and low quiescent current, making it ideal for battery-powered applications where efficiency and extended battery life are critical. The enable feature allows for dynamic control of the regulator's operation, providing additional flexibility in system design. The comprehensive protection features ensure reliable operation under various fault conditions, enhancing the overall robustness of the device.

LP5951MF-1.3 Applications

The LP5951MF-1.3 is well-suited for a range of applications that require a stable 1.3V supply with low power consumption. Some specific use cases include:

• Battery-Powered Devices: Ideal for portable electronics where efficiency and battery life are paramount.
• Low-Power Systems: Suitable for applications that demand minimal power consumption without compromising performance.
• Embedded Systems: Can be used in embedded systems where a reliable and efficient power supply is essential.
• Consumer Electronics: Applicable in various consumer electronics that require a stable voltage supply.

The regulator's small footprint and surface mount package make it easy to integrate into compact designs, further enhancing its versatility.

Conclusion of LP5951MF-1.3

The LP5951MF-1.3 from Texas Instruments is a high-performance linear voltage regulator designed for applications requiring a stable 1.3V supply with low power consumption. Its low dropout voltage and low quiescent current make it an excellent choice for battery-powered and low-power systems. The enable control feature and comprehensive protection mechanisms ensure reliable operation and flexibility in system design. Although the product is now obsolete, it remains a reliable option for existing designs and can be sourced through tape and reel packaging. For new designs, engineers may need to consider alternative models, but the LP5951MF-1.3 continues to offer significant benefits in terms of performance and efficiency.