STMicroelectronics

PM8903TR  

DC Switching Voltage Regulators

PM8903TR Description

The PM8903TR is a highly efficient buck regulator designed by STMicroelectronics, a leading manufacturer in the electronics industry. This power management IC (PMIC) offers an adjustable output voltage with a maximum input voltage of 6V and a minimum input voltage of 2.8V. It is capable of delivering up to 3A of output current, making it suitable for applications requiring high current delivery. The PM8903TR features a synchronous rectifier, enhancing its efficiency and performance. It operates at a switching frequency of 1.1MHz, ensuring a compact design and high efficiency. The output voltage can be adjusted from a minimum of 0.6V to a maximum of 6V, providing flexibility in various power management applications. The PM8903TR is packaged in a surface-mount 16VFQFPN format and is available in tape and reel (TR) packaging, facilitating easy integration into modern electronic designs. Despite its obsolescence status, the PM8903TR remains a reliable choice for power management due to its robust design and compliance with industry standards such as REACH and ROHS3.

PM8903TR Features

• Adjustable Output Voltage: The PM8903TR offers an adjustable output voltage ranging from 0.6V to 6V, providing flexibility for various applications.
• High Efficiency: With a synchronous rectifier, the PM8903TR achieves high efficiency, making it suitable for power-sensitive designs.
• High Current Capability: The regulator can deliver up to 3A of output current, catering to high-power requirements.
• Wide Input Voltage Range: The PM8903TR operates within an input voltage range of 2.8V to 6V, ensuring compatibility with a variety of power sources.
• Compact Design: Operating at a switching frequency of 1.1MHz, the PM8903TR allows for a compact and efficient design.
• Surface Mount Technology: The PM8903TR is packaged in a surface-mount 16VFQFPN format, facilitating easy integration into modern electronic designs.
• Compliance: The PM8903TR is REACH unaffected and ROHS3 compliant, ensuring it meets environmental and safety standards.
• Moisture Sensitivity Level: With an MSL of 3 (168 hours), the PM8903TR is suitable for manufacturing environments with controlled humidity.

PM8903TR Applications

The PM8903TR is ideal for a variety of applications requiring efficient power management solutions. Its adjustable output voltage and high current capability make it suitable for:

• Consumer Electronics: Powering devices such as smartphones, tablets, and laptops where compact design and high efficiency are crucial.
• Industrial Equipment: Providing reliable power management for industrial control systems and instrumentation.
• Telecommunications: Ensuring stable power supply for communication devices and infrastructure.
• Automotive Electronics: Supporting power management in automotive applications where efficiency and reliability are paramount.

Conclusion of PM8903TR

The PM8903TR from STMicroelectronics is a versatile and efficient buck regulator designed for high-current applications. Its adjustable output voltage, wide input voltage range, and synchronous rectifier ensure high efficiency and flexibility. Despite being marked as obsolete, the PM8903TR remains a reliable choice for power management due to its robust design and compliance with industry standards. Its compact surface-mount package and compatibility with modern manufacturing processes make it an ideal component for various electronic designs.

PM8903TR Documents

Download datasheets and manufacturer documentation for PM8903TR

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PM8903      

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