LNK3204P

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The LNK3204P is an energy-efficient Offline Switcher IC compatible with isolated DC/DC converter applications. It features precise current-mode control that provides excellent loop stability under rapid line, load and temperature changes. This low power device helps provide a low component count, low noise output voltage and best-in-class transient response. It is suitable for applications that require improved light load efficiency and minimal standby power requirements, such as notebook adapters, desktop adapters and other SMPS applications.

The LNK3204P consists of a full-bridge rectifier, two linear voltage regulators, and two power MOSFETs as efficient power switches. The internal circuitry of the device is designed using unique architectures to further reduce the component count and improve system power density. The LNK3204P includes an internally-trimmed, low-resistance full-bridge rectifier with a low switching frequency. This design provides increased current handling capability, improved reliability, and reduces component count due to the elimination of the need for external rectifiers and diodes.

The LNK3204P also provides a controlled-on-time current-mode control scheme with a selectable switching frequency. This scheme provides time-dependent control that is reliable, efficient and simple to use. The current-mode control scheme also allows for improved line and load transient response and helps provide fast transient reaction times and better overall dynamic range performance.

The LNK3204P device includes a programmable Soft-start feature to limit the inrush current during start-up. It also includes a frequency shift-out signal for output voltage dynamic regulation and provides complete protection for the MOSFETs and the device. The device also includes an adjustable frequency jittering function that helps reduce EMI pollution. In addition, the LNK3204P comes in a 16-lead small outline package that is fully RoHS compliant.

The wide application range of the LNK3204P makes it suitable for a variety of offline SMPS applications, including switch mode power supplies (SMPS), laptop and other low power adapter applications, and consumer electronics applications. The device\'s high power efficiency and low power consumption make it an ideal solution for designs targeting ENERGY STAR compliance.

In summary, the LNK3204P is an efficient, low power offline switcher IC with precise current-mode control and excellent loop stability. The device helps reduces the overall component count, improves system power density and provides improved light load efficiency and minimal standby power requirements. The device also provides a wide application range making it suitable for designs targeting ENERGY STAR compliance, switch mode power supplies, laptop and other low power adapter applications, and consumer electronics applications.

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