LM3668SDX-2833/NOPB

The LM3668SDX-2833/NOPB is a high-performance, low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. This device is designed to provide a stable output voltage with minimal noise, making it suitable for a variety of applications, including portable devices, RF applications, and other sensitive electronic circuits.

Key Features:

1. Input Voltage Range: The LM3668 can accept a wide input voltage range, typically from 2.5V to 5.5V, allowing it to be used with various power sources, including lithium-ion batteries.

2. Output Voltage: The device is available in fixed output voltage options, with the specific model providing an output of 2.8V. This fixed output is ideal for powering devices that require a stable voltage.

3. Output Current: The LM3668 can deliver a maximum output current of up to 1A, making it suitable for powering a range of devices, from low-power sensors to more demanding loads.

4. Low Dropout Voltage: With a low dropout voltage of around 200mV at 1A, the LM3668 is efficient in maintaining output voltage even when the input voltage is close to the output voltage, which is particularly beneficial in battery-powered applications.

5. Power Supply Rejection Ratio (PSRR): The device features a high PSRR, which helps to minimize the impact of input voltage fluctuations on the output voltage, ensuring a clean and stable power supply for sensitive components.

6. Thermal Protection: The LM3668 includes built-in thermal shutdown protection, which prevents the device from overheating and ensures reliable operation under varying load conditions.

7. Compact Package: The LM3668SDX-2833/NOPB is housed in a small, space-saving package (typically a 5-pin SOT-23), making it suitable for applications where board space is limited.

8. Low Quiescent Current: The device is designed to operate with low quiescent current, which is advantageous for battery-operated devices, extending battery life by reducing power consumption when the device is idle.

9. Application Areas: Common applications for the LM3668 include portable electronics, wireless communication devices, and any application requiring a low-noise, stable power supply.

Conclusion:

The LM3668SDX-2833/NOPB from Texas Instruments is a versatile and efficient LDO voltage regulator that provides reliable performance in a compact form factor. Its combination of low dropout voltage, high PSRR, and thermal protection makes it an excellent choice for powering sensitive electronic devices in a variety of applications.