TOP269EG

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The TOP269EG is a powerful AC-DC converter, offline switcher, and more. It offers built-in protection features as well as superior power efficiency.

The TOP269EG is a high performance monolithic switch-mode power supply IC that provides a complete solution for a variety of power management applications. It combines high-frequency, high-efficiency DC-DC conversion with a low-loss, high-current PWM controller in a single package. The device is capable of supplying up to 1.2A of output current with an input voltage range of 4V to 40V.

The TOP269EG PWM controller includes built-in protections for over temperature, over-current and surge protection. It also includes a soft start/stop circuit for power saving and a power-on reset function. The adjustable frequency operation supports efficient and silent operation. The wide range of output voltages, current limits and over-current protection allows for optimized power conversion and helps extend product lifetime. The versatile feature set and high efficiency (up to 94%) makes the TOP269EG an ideal choice for a variety of AC-DC converter, offline switcher and other power management applications.

The device features a quasi-resonant control architecture and operates in multiple topologies including buck, boost, flyback, and forward. It has a PIN-programmable current sense threshold to adjust the current limit level. It is designed with an integrated internal current sense resistor and an external high-side MOSFET with Schottky diode, providing an overall solution size and cost reduction. The extended operating temperature range of -40°C to +125°C can support harsh environment application.

The closed loop system architecture of the TOP269EG minimizes the output voltage rippleand provides a stabilized voltage output. This ensures a reliable andaccurate voltage source to the system, which prevents over-voltage orunder-voltage in a wide range of output conditions. The low-voltage operationof the device further reduces the system standby power consumption.

The TOP269EG is a highly efficient power solution for a variety of offline switching and AC-DC conversion applications. It offers superior performance, protection and energy savings compared to traditional linear regulators, making it ideal for cost-sensitive applications.

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