FAN1540
Low dropout voltage regulators for stable 3.3V and 1.8V power supply
Manufacturer： ['fairchild', 'onsemi', 'freescale', 'rochester']
series introduction
The **FAN1540 Series** is a family of highly efficient, low-power offline PWM (Pulse Width Modulation) controllers designed for use in AC-DC power conversion applications. These controllers are engineered to deliver exceptional performance in compact, energy-efficient designs, making them ideal for a wide range of power supply systems. With advanced features such as low standby power consumption, high reliability, and robust protection mechanisms, the FAN1540 Series is a versatile solution for modern power management challenges.
One of the standout features of the FAN1540 Series is its ability to operate in quasi-resonant (QR) mode, which minimizes switching losses and improves overall efficiency. This makes the series particularly well-suited for applications requiring high energy efficiency, such as adapters, chargers, and standby power supplies. The controllers also support frequency foldback at light loads, further reducing power consumption and enhancing performance in low-power scenarios. Additionally, the FAN1540 Series incorporates a range of protection features, including over-voltage protection (OVP), over-current protection (OCP), and over-temperature protection (OTP), ensuring safe and reliable operation under various conditions.
The design of the FAN1540 Series emphasizes simplicity and ease of integration. The controllers are housed in compact packages, making them suitable for space-constrained applications. Their minimal external component count simplifies circuit design and reduces overall system costs, while their wide input voltage range (typically up to 600V) ensures compatibility with global power standards. The series also supports both fixed-frequency and variable-frequency operation, providing flexibility for designers to optimize performance based on specific application requirements.
Typical applications for the FAN1540 Series include consumer electronics, such as smartphone chargers, LED lighting drivers, and home appliances, as well as industrial power supplies and auxiliary power units. Its ability to deliver high efficiency and reliability in a compact form factor makes it a preferred choice for designers seeking to meet stringent energy efficiency standards, such as ENERGY STAR and EU CoC Tier 2. Whether used in high-density power supplies or low-power standby systems, the FAN1540 Series offers a robust and efficient solution for modern power conversion needs.
Images for reference
6-MLP
TO-263
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