LT3045IDD#PBF

The LT3045IDD#PBF is a high-performance, low-dropout (LDO) linear voltage regulator manufactured by Analog Devices Inc. (formerly Maxim Integrated). This device is designed to provide a stable output voltage with low noise and high power supply rejection, making it suitable for sensitive analog applications.

Key Features:

1. Output Voltage Range: The LT3045 can be configured to output a fixed voltage or an adjustable voltage, typically ranging from 1.2V to 20V, depending on the specific application requirements.

2. Low Dropout Voltage: The LDO features a low dropout voltage of approximately 300mV at full load, which allows it to maintain regulation even when the input voltage is only slightly above the output voltage.

3. High Output Current: The device can deliver up to 1.5A of output current, making it suitable for powering a variety of loads, including microcontrollers, sensors, and RF circuits.

4. Low Noise Operation: The LT3045 is designed to minimize output noise, with a typical noise level of around 10µVRMS (from 10Hz to 100kHz). This characteristic is particularly important in applications where signal integrity is critical.

5. Power Supply Rejection Ratio (PSRR): The LDO exhibits excellent PSRR, typically around 80dB at low frequencies, which helps to filter out noise from the input power supply.

6. Thermal Performance: The device is housed in a compact 8-lead MSOP package, which aids in thermal dissipation. It also features thermal shutdown protection to prevent damage from overheating.

7. Protection Features: The LT3045 includes built-in protection features such as current limiting and thermal shutdown, ensuring reliable operation under various conditions.

8. Application Areas: This LDO is ideal for applications in precision analog circuits, RF systems, and battery-powered devices where low noise and high efficiency are paramount.

Electrical Characteristics:

• Input Voltage Range: Typically up to 30V
• Quiescent Current: Low quiescent current, typically around 20µA, which is beneficial for battery-operated devices.
• Temperature Range: The device operates over a wide temperature range, typically from -40°C to +125°C.

Conclusion:

The LT3045IDD#PBF from Analog Devices Inc. is a versatile and reliable LDO voltage regulator that excels in low-noise and high-precision applications. Its combination of low dropout voltage, high output current capability, and excellent PSRR makes it a preferred choice for engineers designing sensitive electronic systems.