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Product Detailed Parameters
- Description：IC REG CTRLR BUCK PWM 16-QFN
- Series：*
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Topology：-
- Number of Outputs：-
- Frequency - Switching：-
- Voltage/Current - Output 1：-
- Voltage/Current - Output 2：-
- Voltage/Current - Output 3：-
- w/LED Driver：-
- w/Supervisor：-
- w/Sequencer：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The NCP81038AMNTWG is a synchronous buck controller manufactured by onsemi, designed for high-efficiency power conversion. It operates within an input voltage range of 5.5V to 28V and supports switching frequencies of 300 kHz, 400 kHz, and 600 kHz. The device utilizes a 16-QFN package for surface mount installation. It features an auto power saving mode to enhance light-load efficiency and includes a built-in LDO for auxiliary power supply requirements.
Feature Summary
- Synchronous buck topology with integrated auto power saving mode for improved light-load performance
- Built-in low-dropout regulator (LDO) provides stable auxiliary power
- Configurable switching frequency options support flexible design optimization
Applications
- Server and workstation power distribution networks
- Telecommunications infrastructure equipment
- Industrial control systems requiring efficient DC-DC conversion
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'AMNTWG' matches project requirements. Check for end-of-life notifications as discontinuation status may affect long-term availability. Ensure compliance with RoHS directives and relevant environmental standards before integration into final assemblies.
Selection Notes
Select this controller when designing synchronous buck converters requiring configurable switching frequencies between 300 kHz and 600 kHz. The integrated LDO simplifies biasing circuits, reducing external component count. Ensure the input voltage range of 5.5V to 28V aligns with the system power rail. The 16-QFN package necessitates appropriate thermal management strategies for sustained operation.
Part Context
This component belongs to the NCP81038 family of synchronous buck controllers from onsemi. It shares functional similarities with other members in the series but differs in packaging and specific pin configurations. The AMNTWG variant specifically denotes the 16-QFN package option, distinguishing it from other package types available within the same product line.
Replacement Considerations
Consult official onsemi documentation for qualified substitute part numbers. Verify compatibility regarding pinout, electrical specifications, and thermal characteristics before substituting. Generic equivalents may not replicate the integrated LDO or auto power saving features.
