Texas Instruments

LM3281YFQR  

DC Switching Voltage Regulators

The LM3281YFQR is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. This device is designed to provide a stable and reliable voltage output over a wide range of input voltages and load currents. Here is a description of the LM3281YFQR, its features, and applications:

Description:

The LM3281YFQR is a low-dropout linear voltage regulator with an ultra-low quiescent current of 3.5µA (typical). It is available in a small SOT-23 package, making it suitable for space-constrained applications. The device features a low dropout voltage of 100mV at 1A output current, ensuring high efficiency and minimal power loss.

Features:

1. Ultra-low quiescent current: 3.5µA (typical), which helps extend battery life in portable applications.
2. Low dropout voltage: 100mV at 1A output current, providing high efficiency and minimal power loss.
3. Wide input voltage range: 2.5V to 5.5V, making it suitable for a variety of power supply sources.
4. High output current capability: Can support up to 1A of output current.
5. Small package size: SOT-23, ideal for space-constrained applications.
6. Internal current limit and thermal shutdown protection, ensuring safe operation and reliability.
7. Low output voltage drift: Less than 1% over temperature and line variations.
8. Low output noise: Suitable for noise-sensitive applications.

Applications:

1. Portable devices: Smartphones, tablets, and wearables, where low quiescent current and small form factor are crucial for battery life and design.
2. IoT devices: Low-power sensors and microcontrollers in IoT applications can benefit from the LM3281YFQR's low quiescent current and wide input voltage range.
3. Medical devices: The low-noise output and low dropout voltage make it suitable for sensitive medical equipment that requires stable and clean voltage regulation.
4. Industrial control systems: The LM3281YFQR can be used in industrial control systems where stable voltage regulation is required over a wide range of input voltages and load currents.
5. Automotive applications: The device's low dropout voltage and wide input voltage range make it suitable for automotive systems with varying power supply conditions.

In summary, the LM3281YFQR is a low-dropout linear voltage regulator with an ultra-low quiescent current, making it an excellent choice for a wide range of applications, including portable devices, IoT devices, medical equipment, industrial control systems, and automotive applications. Its low dropout voltage, wide input voltage range, and small package size contribute to its high efficiency and reliability in various power supply conditions.

LM3281YFQR Documents

Download datasheets and manufacturer documentation for LM3281YFQR

Datasheets :

LM3281      

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LM3281