FAN53528BUC08X

Voltage - Input (Max):	5.5V
Supplier Device Package:	15-WLCSP (2.02x1.31)
Package / Case:	15-UFBGA, WLCSP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	2.4MHz
Current - Output:	3A
Voltage - Output (Max):	1.14V
Voltage - Output (Min/Fixed):	0.35V
Series:	--
Voltage - Input (Min):	2.5V
Number of Outputs:	1
Output Type:	Programmable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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## IntroductionThe FAN53528BUC08X device is a DC/DC switching regulator designed specifically for power management applications. The device is a dual-output synchronous buck regulator, providing high-efficiency, low-noise power conversion. This device is suitable for a variety of applications—including automotive, consumer electronics, industrial, and medical applications.## FeaturesThe FAN53528BUC08X device is rated for a continuous output current of 3A and includes several features to help ensure a robust design. These features include over-temperature, over-current, and under-voltage lockout, as well as current-mode control with programmable soft-start.The device also includes several other features to enhance the device’s application flexibility. These features include programmable loop compensation, programmable switching frequency, and an optional enable pin for external control of the device’s outputs.## ApplicationsThe FAN53528BUC08X device is suitable for a wide range of applications, including automotive, consumer electronics, industrial, and medical. In automotive applications, the device is suitable for powering a wide range of components, such as infotainment systems, HVAC, lighting, and body control modules.In consumer electronics applications, the device is ideal for powering digital media players, cell phones, tablets, and laptops. In industrial applications, the device can be used to power DC motors, air conditioning units, and other industrial equipment. Finally, in medical applications, the device can be used to power implantable and wearable medical devices.## Working PrincipleThe FAN53528BUC08X is a dual-output, synchronous buck regulator. The device consists of two stages: an input stage and an output stage. The input stage consists of a high-side MOSFET and a low-side MOSFET. These MOSFETs are driven by an internal PWM controller, which regulates the output voltage and current.The output stage consists of two inductors and two output capacitors. The output voltage is determined by the ratio of the two inductors. When the PWM controller activates the MOSFETs and the inductors, energy is stored in the output capacitors. This energy is then released when the MOSFETs are deactivated.The device employs current-mode control, with an adjustable soft-start function and adjustable loop compensation. The soft-start function is used to reduce the inrush current when the device is activated. The loop compensation is used to ensure stable operation of the device and to minimize any output ripple.## ConclusionThe FAN53528BUC08X device is a DC/DC switching regulator designed specifically for power management applications. Rated for a continuous output current of 3A, the device features several features to help ensure a robust design—including over-temperature, over-current, and under-voltage lockout, as well as adjustablecurrent-mode control with a programmable soft-start feature. The device is suitable for a variety of applications, including automotive, consumer electronics, industrial, and medical. The device utilizes a dual-output, synchronous buck regulator structure, with an internal PWM controller to regulate the output voltage and current. The device also includes an adjustable loop compensation, to ensure stable operation of the device and to minimize any output ripple.

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