Texas Instruments

LP2981A-50DBVR

LP2981A-50DBVR Description

The LP2981A-50DBVR is a Linear & Switching Voltage Regulator designed and manufactured by Texas Instruments. It is a fixed-output, positive voltage regulator that provides a stable 5V output with a maximum dropout voltage of 0.37V at 100mA load current. This device is designed for surface mount applications and is packaged in a small SOT23-5 package, making it ideal for space-constrained designs.

LP2981A-50DBVR Features

• Output Type: Fixed
• Voltage - Input (Max): 16V
• Current - Output: 100mA
• Number of Regulators: 1
• Output Configuration: Positive
• Current - Supply (Max): 1.7 mA
• Voltage - Output (Min/Fixed): 5V
• Voltage Dropout (Max): 0.37V @ 100mA
• Current - Quiescent (Iq): 95 µA
• PSRR: 63dB (1kHz)
• Control Features: Enable
• Protection Features: Over Current, Over Temperature, Short Circuit

Unique features and advantages of the LP2981A-50DBVR include its low quiescent current of 95 µA, which helps reduce power consumption in battery-powered applications. The device also offers excellent PSRR of 63dB at 1kHz, ensuring minimal output voltage ripple and noise. Additionally, the LP2981A-50DBVR is REACH unaffected and RoHS3 compliant, making it suitable for environmentally conscious designs.

LP2981A-50DBVR Applications

The LP2981A-50DBVR is ideal for a wide range of applications, including:

1. Portable Electronics: Due to its low quiescent current and small form factor, the LP2981A-50DBVR is well-suited for battery-powered devices such as smartphones, tablets, and wearables.
2. Industrial Control Systems: The device's ability to handle input voltages up to 16V makes it suitable for industrial control systems that require stable 5V power supplies.
3. Automotive Applications: The LP2981A-50DBVR can be used in automotive systems that require a stable 5V output, such as infotainment systems and sensor interfaces.
4. Medical Devices: The device's low noise and low quiescent current make it suitable for medical devices that require precise voltage regulation and low power consumption.

Conclusion of LP2981A-50DBVR

The LP2981A-50DBVR is a versatile, high-performance linear voltage regulator that offers a stable 5V output with low quiescent current and excellent PSRR. Its small form factor, REACH unaffected status, and RoHS3 compliance make it an ideal choice for a wide range of applications, from portable electronics to industrial control systems. With its unique features and advantages, the LP2981A-50DBVR stands out as a reliable and efficient solution for voltage regulation in various electronic designs.