The APW7143KI-TRL is a synchronous buck regulator IC manufactured by Anpec. It is designed for high-efficiency step-down DC-DC conversion. This regulator utilizes internal power MOSFETs to minimize external component count and simplify the design process. Given its end-of-life status, it's crucial to consider alternative solutions for new designs.

Applications:

• Notebook Computers: Used for core voltage regulation of the CPU and GPU.
• LCD Monitors: Powers the panel and backlight circuitry.
• Set-Top Boxes: Provides power to the processor and peripherals.
• Networking Equipment: Powers routers, switches, and other networking devices.

Features:

• Synchronous Rectification: Improves efficiency by minimizing power loss in the switching process.
• Integrated Power MOSFETs: Reduces external component count and board space.
• Adjustable Output Voltage: Provides flexibility in selecting the desired output voltage.
• Overcurrent Protection (OCP): Protects the regulator and load from excessive current draw.
• Undervoltage Lockout (UVLO): Prevents the regulator from operating with insufficient input voltage.
• Thermal Shutdown Protection: Shuts down the regulator if the junction temperature exceeds a safe limit.

Benefits:

• High Efficiency: Synchronous rectification leads to reduced power consumption and heat dissipation.
• Compact Solution: Integrated MOSFETs minimize the required board space.
• Simplified Design: Fewer external components simplify the design and layout process.
• Robust Protection: Overcurrent and thermal shutdown protection enhance system reliability.

Additional Details:

The APW7143KI-TRL operates over a specified input voltage range and switching frequency. It provides a stable and regulated output voltage with excellent transient response. Datasheets provide detailed electrical characteristics, thermal performance, and application guidelines for this regulator.