ISO7831FDWWR

The ISO7831FDWWR is a voltage regulator from Texas Instruments, designed to provide a stable output voltage for various electronic applications. This component is part of the ISO78xx series, which is known for its high efficiency and low dropout voltage characteristics.

Key Features:

1. Output Voltage: The ISO7831FDWWR typically provides a fixed output voltage of 3.3V, making it suitable for powering microcontrollers, sensors, and other low-voltage digital circuits.

2. Input Voltage Range: It can accept a wide input voltage range, typically from 4.5V to 30V, allowing it to be used in various power supply configurations.

3. Low Dropout Voltage: One of the standout features of this regulator is its low dropout voltage, which is usually around 0.2V at full load. This means it can maintain regulation even when the input voltage is close to the output voltage, making it ideal for battery-powered applications.

4. Output Current: The ISO7831FDWWR can typically deliver up to 1A of output current, providing sufficient power for many applications without the need for additional components.

5. Thermal Protection: The device includes built-in thermal shutdown protection, which prevents damage in case of overheating, ensuring reliability in various operating conditions.

6. Package Type: The ISO7831FDWWR is available in a compact surface-mount package (usually a DPAK or similar), which is advantageous for space-constrained designs and allows for efficient thermal management.

7. Efficiency: With its low quiescent current and high efficiency, the ISO7831FDWWR is suitable for applications where power conservation is critical, such as in portable devices.

8. Applications: Common applications include powering microcontrollers, digital signal processors, and other low-voltage logic devices. It is also used in automotive, industrial, and consumer electronics.

Electrical Characteristics:

• Input Voltage (Vin): 4.5V to 30V
• Output Voltage (Vout): 3.3V (fixed)
• Output Current (Iout): Up to 1A
• Dropout Voltage (Vdo): Typically 0.2V at full load
• Quiescent Current (Iq): Low, typically in the range of microamperes

Conclusion:

The ISO7831FDWWR from Texas Instruments is a versatile and reliable voltage regulator that meets the needs of modern electronic designs. Its combination of low dropout voltage, high efficiency, and robust protection features make it an excellent choice for a wide range of applications, particularly in battery-operated devices and systems requiring stable power supply.