The ON Semiconductor NCP5338 is a high-performance, dual synchronous buck controller designed to meet the rigorous power supply requirements of modern microprocessors, graphics cards, and other advanced electronics. This versatile controller is capable of driving two independent output voltages, which are critical for systems that require stable and efficient power delivery in a compact footprint.

Key Features

• High Efficiency: With its integrated MOSFET drivers and synchronous rectification, the NCP5338 ensures efficient power conversion, which is essential for minimizing heat generation and power loss in high-performance systems.
• Dual-Output Operation: The controller supports two independent outputs with adjustable voltages, allowing for flexible power management and optimization of system performance.
• Precision Voltage Regulation: The NCP5338 maintains tight voltage regulation, which is crucial for the stability and longevity of sensitive electronic components.
• Programmable Switching Frequency: The device allows for a programmable switching frequency up to 2 MHz, enabling designers to balance efficiency and component size according to their specific needs.
• Integrated Soft-Start: This feature minimizes inrush current during startup, which can prevent system voltage disruptions and component stress.

Applications

The NCP5338 is well-suited for a variety of applications where dual output voltages and high efficiency are required. Typical applications include:

• Desktop and Notebook Computers
• Graphics Cards
• Netcom and Telecom Equipment
• Servers and Workstations
• Embedded Systems

Technical Specifications

• Input Voltage Range: 4.5V to 13.2V
• Output Voltage Range: 0.8V to 5.5V
• Maximum Output Current: Dependent on external MOSFETs
• Switching Frequency Range: 200 kHz to 2 MHz
• Thermal Overload Protection
• Overvoltage and Undervoltage Protection

The NCP5338 from ON Semiconductor is an excellent choice for system designers looking for a reliable, flexible, and efficient power management solution. Its advanced features ensure that it can meet the needs of the most demanding applications.