FAN1587AT15

FAN1587AT15 is a special purpose voltage regulator, which is designed for applications related to ATX, computer size, industry standard power supplies. It provides a good static efficiency value and improved power savings. This type of voltage regulator is typically used for CPU core or processor power, 12V DC supply and other applications related to low-power embedded computers. It also features Adaptive Control Technology (ACT) to improve reliability.

The main components used in FAN1587AT15 are a gate drive controller, gate driver transistors, current sensing circuitry and an output voltage sense circuit. The gate drive controller determines the output voltage level and provides the appropriate gate signals to the gate driver transistors. The gate driver transistors regulate the current through the output device. The current sensing circuitry measures the current through the output device and provides feedback control to the gate drive controller. The output voltage sense circuit measures the output voltage and provides feedback control to the gate drive controller.

The FAN1587AT15 can support up to two output channels, with each output channel capable of driving up to 6A. It uses a constant on-time control with adaptive gate and drain-source voltage control (ACT) to achieve a good static efficiency and power savings. The regulator provides under-voltage (UV) and over-voltage (OV) protection for both output channels. It also features an open loop compensation circuit to optimize the transient response of the voltage regulator. The output voltage can be set by changing the external resistor value for each voltage channel.

For applications that require a high level of protection against transient overload, the FAN1587AT15 has a linear over-current protection circuit that can provide up to 20A of peak current during overload. It also features feedback enable control and an integrated active reverse current protection (RCP) circuit to ensure full load overload protection.

In addition, the FAN1587AT15 has internally set delay and over-current protection (OCP) circuitry which can provide a resolution of less than 1µs for both output channels. The OCP circuitry can also be disabled to enable faster-than-normal transient response times. This allows for smooth, low-ripple outputs even under transient load conditions.

The FAN1587AT15 is designed to provide the highest efficiency in low-power computer applications, providing a good static efficiency value and improved power savings. It is also an ideal solution for applications such as digital signage and other machine-to-machine products that require an ultra-low power supply solution.