STMicroelectronics

LD39130SJ33R

The LD39130SJ33R is a high-efficiency synchronous step-down (buck) regulator from STMicroelectronics. It is designed to provide a stable and regulated output voltage from a wide range of input voltages. Here is a description of the LD39130SJ33R, including its features and applications:

Description:

The LD39130SJ33R is a high-efficiency synchronous step-down regulator that can operate from an input voltage range of 4.5V to 23V. It is available in a compact 3.3mm x 3.3mm DFN package. The regulator features a wide output voltage range of 0.9V to 12V and can deliver up to 3A of continuous output current.

Features:

1. High Efficiency: The LD39130SJ33R offers high efficiency of up to 95%, which helps reduce power dissipation and improve overall system performance.
2. Wide Input Voltage Range: The regulator can operate from an input voltage range of 4.5V to 23V, making it suitable for a wide range of applications.
3. Synchronous Rectification: The LD39130SJ33R uses synchronous rectification, which helps improve efficiency and reduce switching losses.
4. Programmable Output Voltage: The output voltage can be easily programmed using an external resistor divider, allowing for flexibility in system design.
5. Protection Features: The regulator includes over-current protection, over-temperature protection, and short-circuit protection to ensure reliable operation.
6. Low Quiescent Current: The LD39130SJ33R has a low quiescent current of 50µA in normal operation, which helps reduce overall power consumption.
7. Small Package Size: The 3.3mm x 3.3mm DFN package allows for easy integration into compact designs.

Applications:

1. Portable Electronics: The LD39130SJ33R is suitable for use in portable devices such as smartphones, tablets, and wearables, where efficiency and compact size are crucial.
2. Power Banks: The high efficiency and wide input voltage range make it an ideal choice for power banks and other battery charging applications.
3. IoT Devices: The LD39130SJ33R can be used in Internet of Things (IoT) devices, where low power consumption and efficient power regulation are essential.
4. Industrial Equipment: The regulator can be used in industrial applications where a stable and regulated output voltage is required from a wide range of input voltages.
5. LED Lighting: The LD39130SJ33R can be used to provide a stable and efficient power supply for LED lighting applications.

In summary, the LD39130SJ33R is a high-efficiency synchronous step-down regulator from STMicroelectronics that offers a wide input voltage range, programmable output voltage, and various protection features. It is suitable for a range of applications, including portable electronics, power banks, IoT devices, industrial equipment, and LED lighting.