STMicroelectronics

LDL1117S33R

The LDL1117S33R is a low-dropout (LDO) linear voltage regulator from STMicroelectronics. It is designed to provide a stable and reliable voltage output with a low dropout voltage, making it suitable for a wide range of applications.

Description:

The LDL1117S33R is a low-dropout linear voltage regulator that operates from an input voltage range of 2.5V to 5.5V and provides a fixed output voltage of 3.3V. It has a very low dropout voltage of typically 170mV at a 1A load, which makes it ideal for use in battery-powered applications where minimizing power consumption is critical.

Features:

1. Low dropout voltage: The LDL1117S33R has a low dropout voltage of typically 170mV at a 1A load, allowing it to maintain a stable output voltage even when the input voltage is close to the output voltage.
2. High output current: The regulator can supply an output current of up to 1A, making it suitable for a wide range of applications that require high current.
3. Low quiescent current: The quiescent current of the LDL1117S33R is typically 70µA, which helps to minimize power consumption in battery-powered applications.
4. Good load and line regulation: The regulator has excellent load and line regulation, ensuring a stable output voltage under varying input voltage and load conditions.
5. Small package size: The LDL1117S33R is available in a small SOT-223 package, making it suitable for use in compact and space-constrained applications.

Applications:

The LDL1117S33R is suitable for a wide range of applications that require a stable and reliable voltage output with low power consumption. Some of the potential applications include:

1. Portable electronic devices: The low dropout voltage and low quiescent current make the LDL1117S33R ideal for use in battery-powered devices such as smartphones, tablets, and wearable devices.
2. Industrial equipment: The regulator can be used in industrial applications where a stable voltage output is required, such as in control systems and sensors.
3. Telecommunication equipment: The LDL1117S33R can be used in telecommunication equipment to provide a stable voltage supply for sensitive components.
4. Automotive electronics: The regulator can be used in automotive applications, such as infotainment systems and sensor circuits, where a stable voltage supply is critical.
5. Medical equipment: The LDL1117S33R can be used in medical devices, such as portable monitoring equipment and diagnostic instruments, where a reliable voltage supply is essential.

Overall, the LDL1117S33R is a versatile and reliable LDO voltage regulator that can be used in a wide range of applications where a stable and low-dropout voltage supply is required.