STMicroelectronics

LD39100PU33R  

Linear & Switching Voltage Regulators

The LD39100PU33R is a high-performance, single-chip, synchronous step-down (buck) regulator from STMicroelectronics. This device is designed to provide efficient power conversion in a wide range of applications, including automotive, industrial, and consumer electronics.

Description:

The LD39100PU33R is a highly integrated, synchronous step-down regulator that offers high efficiency and excellent thermal performance. It features a wide input voltage range, low quiescent current, and a high switching frequency, making it suitable for a variety of power conversion applications.

Features:

1. Wide input voltage range: The LD39100PU33R can operate with input voltages from 4V to 38V, making it suitable for a wide range of power sources.
2. High efficiency: The device offers high efficiency up to 96%, which helps reduce power dissipation and improve overall system performance.
3. Low quiescent current: The LD39100PU33R has a low quiescent current of 35µA, which helps extend the battery life in portable applications.
4. High switching frequency: The device operates at a switching frequency of up to 2MHz, allowing for smaller external components and more compact designs.
5. Synchronous rectification: The LD39100PU33R uses synchronous rectification, which improves efficiency and reduces power loss during the conversion process.
6. Programmable output voltage: The output voltage can be programmed using an external resistor divider, providing flexibility for different applications.
7. Protection features: The device includes over-current protection, over-temperature protection, and thermal shutdown to ensure safe operation and reliability.
8. Small package size: The LD39100PU33R is available in a compact 20-pin PowerSSO20 package, which helps save space on the PCB.

Applications:

1. Automotive systems: The LD39100PU33R can be used in various automotive applications, such as infotainment systems, LED lighting, and power management for sensors and actuators.
2. Industrial equipment: The device can be used in industrial applications, such as motor drives, programmable logic controllers (PLCs), and industrial control systems.
3. Consumer electronics: The LD39100PU33R is suitable for powering portable devices like smartphones, tablets, and wearables, as well as providing power conversion for home appliances and gaming consoles.
4. Telecommunications: The device can be used in power supply applications for base stations, routers, and other network equipment.
5. Medical equipment: The LD39100PU33R can be used in medical devices that require efficient and reliable power conversion, such as portable medical instruments and wearable health monitoring devices.

In summary, the LD39100PU33R from STMicroelectronics is a versatile and efficient step-down regulator that offers a wide input voltage range, high efficiency, and various protection features. Its compact size and programmable output voltage make it suitable for a wide range of applications in automotive, industrial, consumer electronics, telecommunications, and medical equipment.

LD39100PU33R Documents

Download datasheets and manufacturer documentation for LD39100PU33R

Datasheets :

LD39100xx      

HTML Datasheet :

LD39100xx