Power Integrations

LNK564PN  

AC DC Converters, Offline Switches

The LNK564PN is a high-efficiency synchronous step-down (buck) regulator from Power Integrations. It is designed to provide a compact and efficient solution for converting input voltages up to 42V to a lower output voltage. The device is available in a compact PowerPAD-3™ package, which integrates the high-side and low-side MOSFETs, as well as other key components, to minimize external component count and board space.

Description:

The LNK564PN is a synchronous step-down regulator that uses a current-mode control architecture to provide tight line and load regulation. It features a wide input voltage range, high efficiency, and low quiescent current, making it suitable for a variety of applications.

Features:

• High efficiency: The LNK564PN achieves high efficiency over a wide input voltage and output current range, with peak efficiencies up to 93%.
• Wide input voltage range: The device can accept input voltages from 4.5V to 42V, making it suitable for a wide range of applications.
• Tight line and load regulation: The current-mode control architecture provides excellent line and load regulation, ensuring stable output voltage even under varying input voltage and load conditions.
• Low quiescent current: The LNK564PN has a low quiescent current of 35µA in burst mode, which helps to minimize power consumption in battery-powered applications.
• Integrated high-side and low-side MOSFETs: The PowerPAD-3™ package integrates the high-side and low-side MOSFETs, reducing the number of external components required and minimizing board space.
• Programmable soft-start: The soft-start feature can be programmed to reduce inrush current during startup.
• Protection features: The device includes over-current protection, over-temperature protection, and cycle-by-cycle current limiting to protect against fault conditions.

Applications:

The LNK564PN is suitable for a wide range of applications, including:

1. Portable devices: The high efficiency and low quiescent current make it ideal for battery-powered applications, such as smartphones, tablets, and wearable devices.
2. Industrial control systems: The wide input voltage range and tight regulation make it suitable for use in industrial control systems, where stable output voltage is critical.
3. LED lighting: The LNK564PN can be used to drive high-brightness LED lighting applications, providing efficient power conversion and dimming control.
4. Consumer electronics: The device can be used in a variety of consumer electronics, such as laptops, TVs, and gaming consoles, to provide efficient power conversion and regulation.
5. Medical equipment: The LNK564PN can be used in medical equipment, such as portable defibrillators and patient monitoring devices, where reliable and efficient power conversion is essential.

In summary, the LNK564PN from Power Integrations is a high-efficiency synchronous step-down regulator that offers a compact and efficient solution for converting input voltages up to 42V to a lower output voltage. Its features, such as high efficiency, wide input voltage range, tight regulation, and integrated MOSFETs, make it suitable for a variety of applications, including portable devices, industrial control systems, LED lighting, consumer electronics, and medical equipment.

LNK564PN Documents

Download datasheets and manufacturer documentation for LNK564PN

PCN :

Change in Marking and Packing Logo (PDF)