LT1963AES8#TRPBF PMIC - Voltage Regulators - Linear by Analog Devices Inc./Maxim Integrated

The LT1963AES8#TRPBF is a low-dropout (LDO) linear voltage regulator manufactured by Analog Devices Inc., which was previously known as Linear Technology before its acquisition by Analog Devices. This component is designed to provide a stable output voltage with high precision and low noise, making it suitable for a variety of sensitive applications, including RF and precision analog circuits.

Key Features:

1. Output Voltage: The LT1963 can provide a fixed output voltage of 3.3V, 2.5V, or 1.5V, depending on the specific variant. The fixed output voltage versions are designed to deliver a precise voltage with minimal variation.

2. Low Dropout Voltage: The device features a low dropout voltage of approximately 300mV at a 1A load, which allows it to maintain regulation even when the input voltage is only slightly above the output voltage. This is particularly beneficial in battery-powered applications where maximizing battery life is crucial.

3. High Output Current: The LT1963 can supply up to 1.5A of output current, making it suitable for powering a range of devices, from microcontrollers to more demanding analog circuits.

4. Low Noise: The regulator is designed to minimize output noise, with a typical noise level of 20µVRMS (from 10Hz to 100kHz). This low noise performance is essential for applications that require high precision and minimal interference.

5. Thermal Protection: The LT1963 includes built-in thermal shutdown protection, which prevents the device from overheating and ensures reliable operation under varying load conditions.

6. Package Type: The LT1963AES8#TRPBF is housed in an 8-lead MSOP (Mini Small Outline Package) with a thermal pad, which aids in heat dissipation and allows for a compact design in PCB layouts.

7. Wide Input Voltage Range: The device can operate with an input voltage range of 1.8V to 20V, providing flexibility for various power supply configurations.

8. Power Supply Rejection Ratio (PSRR): The LT1963 exhibits excellent PSRR, which helps to filter out noise from the input supply, ensuring a clean output voltage.

9. Applications: This LDO is ideal for applications such as RF and analog circuits, precision data acquisition systems, battery-powered devices, and any application requiring a low-noise, stable power supply.

Electrical Characteristics:

• Input Voltage Range: 1.8V to 20V
• Output Current: Up to 1.5A
• Dropout Voltage: 300mV at 1A
• Output Noise: 20µVRMS (10Hz to 100kHz)
• PSRR: Typically 80dB at 10kHz

Conclusion:

The LT1963AES8#TRPBF is a versatile and reliable LDO voltage regulator that combines low dropout voltage, high output current capability, and low noise performance, making it an excellent choice for a wide range of electronic applications. Its compact package and robust features make it suitable for both consumer and industrial designs where power efficiency and precision are paramount.