STMicroelectronics

SRK1004DTR  

DC DC Switching Controllers

SRK1004DTR Description

The SRK1004DTR is a high-performance Synchronous Rectifier Controller designed for use in power management applications. Manufactured by STMicroelectronics, this device is part of the Power Management Integrated Circuit (PMIC) category and is specifically tailored for synchronous rectification in flyback converters. The SRK1004DTR features a wide input voltage range of 4V to 36V, making it suitable for a variety of power supply designs. It is housed in a surface-mount package, ensuring ease of integration into compact and high-density PCB layouts. The device is available in a Tape & Reel (TR) package, facilitating automated assembly processes.

SRK1004DTR Features

• Synchronous Rectifier: The SRK1004DTR incorporates a synchronous rectifier, which significantly improves efficiency by reducing power losses compared to traditional diode-based rectification.
• Output Type: It is designed as a transistor driver, providing a positive output configuration that simplifies circuit design and enhances reliability.
• Topology: The controller is optimized for flyback topology, a popular choice for isolated power supplies due to its simplicity and cost-effectiveness.
• Switching Frequency: The SRK1004DTR supports switching frequencies up to 500kHz, enabling the use of smaller inductors and capacitors, which is crucial for compact and high-frequency power supply designs.
• Compliance and Reliability: The device is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards. Additionally, it has a Moisture Sensitivity Level (MSL) of 1, making it suitable for unlimited exposure to normal ambient conditions.
• Single Output and Phase: With a single output and phase, the SRK1004DTR is ideal for applications requiring and straightforward efficient power conversion.

SRK1004DTR Applications

The SRK1004DTR is well-suited for a range of applications where high efficiency and compact design are critical. Some specific use cases include:

• Adaptive Voltage Regulators: The wide input voltage range and high switching frequency make it ideal for adaptive voltage regulators used in modern power supplies.
• Isolated Power Supplies: The flyback topology and synchronous rectifier ensure high efficiency and reliability in isolated power supply designs, such as those found in telecommunications and industrial equipment.
• Consumer Electronics: The compact surface-mount package and high efficiency are beneficial for consumer electronics where space and power consumption are key considerations.
• Automotive Electronics: The robustness and compliance with environmental standards make the SRK1004DTR suitable for automotive applications, where reliability and efficiency are paramount.

Conclusion of SRK1004DTR

The SRK1004DTR from STMicroelectronics stands out as a versatile and efficient synchronous rectifier controller. Its wide input voltage range, high switching frequency, and surface-mount package make it an excellent choice for a variety of power management applications. The device's compliance with environmental standards its and robust design ensure long-term reliability and ease of integration into modern electronic systems. Whether used in adaptive voltage regulators, isolated power supplies, or consumer and automotive electronics, the SRK1004DTR offers significant advantages over similar models, making it a preferred choice for engineers and designers in the electronics industry.

SRK1004DTR Documents

Download datasheets and manufacturer documentation for SRK1004DTR

PCN Design/Specification :

Datasheet Rev2 13/Dec/2023