L9779WD-SPI

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The L9779WD-SPI is a specialized power management device belonging to a new family of devices for peripheral power supplies. It belongs to the General Purpose Power Management classification. The L9779WD-SPI is specifically designed for embedded systems requiring step-down DC/DC conversion, current-limit protection and power-on reset.

The L9779WD-SPI is ideal for space-constrained designs. It includes an integrated +4.4V to +7V output voltage converters, that provide small installed package area, low standby current consumption and high efficiency. The device also features highly accurate overcurrent and short-circuit protection, intelligent power management through a variety of protections, a soft start function and load-line dynamics control.

The L9779WD-SPI supports input voltage ranges from 4.4V to 7V with a maximum power output of 2-3W and offers excellent efficiency at high load currents. With the addition of integrated over current protection (OCP) and short-circuit protection (SCP), the device is agile and reliable in providing power to multiple peripherals. The L9779WD-SPI also includes a power-on-reset (POR), which can be used for smart power management.

The L9779WD-SPI device works in a similar way to a chopper, providing a regulated current source. When the supply voltage is applied to the device, the integrated OCP and SCP kicks in and makes sure that the device not exceeds its specified limit. Once the voltage reaches a predetermined level, the device will automatically turn on and provide the required output voltage and current. The device then quickly and accurately switches between different output voltage and current levels while providing a low ripple noise.

The L9779WD-SPI is designed to control and deliver power safely and reliably to a variety of peripherals such as phones, tablets, wearables, cameras, and speakers. Its power capabilities, accuracy and reliability make the L9779WD-SPI a popular choice for embedded systems. The device’s small form factor and low standby power consumption make it an optimal choice for space-constrained designs. With its integrated over current, short circuit and power-on-reset protection, the L9779WD-SPI is a safe and highly reliable device for providing peripheral power.

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