PS8A0040AWEX

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The PS8A0040AWEX is a specialized power management integrated circuit (PMIC) for applications such as industrial and embedded systems, automotive and consumer products. The device contains a power conversion controller, multiple programmable regulator control blocks, MOSFETs, and multiple security and protection circuits all integrated on a single chip. The PS8A0040AWEX is a complete power solution with rich features, wide input voltage range, and ultra-low quiescent current.

The PS8A0040AWEX is designed to take a wide input voltage range of 4.5V to 28V and it is capable of delivering up to 10A of continuous output current to a regulated output voltage. The device provides an integrated buck switching regulator, two LDOs, and one boost regulator, all operating from a single voltage input. The unique device architecture and the combination of innovative features provide high efficiency and power conversion in both steady-state and transient operation.

The buck regulator is the main block of the PS8A0040AWEX and it is designed to offer highly accurate output regulation with minimal external components and over a wide input voltage range of 4.5V to 28V. The device supports both synchronous and asynchronous power MOSFET topologies, and it contains a high-side and a low-side MOSFET. The maximum output current of 10A is generated with a switching frequency of 1MHz, which is adjustable through an external resistor.

The LDOs of the PS8A0040AWEX can supply up to 3A and 1.5A of output current, respectively, with very low quiescent current. Both LDOs are adjustable in the range 0.6V-3.3V, and the device enables ultra-fast transient response with their output voltage settings. The boost regulator is intended for applications requiring a higher output voltage, and it is capable of delivering up to 10A of output current. The boost regulator switches at a frequency of 500kHz and it has an adjustable output voltage range from 3.3V up to 28V.

The PS8A0040AWEX provides advanced protection features for safe operation and includes two unique blocks for dealing with transients. The integrated security and protection circuits include over-voltage protection (OVP), variable soft-start, short-circuit protection (SCP), open-drain fault signal, and brownout protection. These features enable reliable power management when used in conjunction with a wide variety of primary power supplies.

In conclusion, the PS8A0040AWEX power management integrated circuit is ideal for a wide range of applications with its extended input voltage range, ultra-low quiescent current and advanced protection features. The device consists of a buck regulator, two LDOs, and a boost regulator to provide a highly efficient and reliable power supply solution.

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