PS8A0070WE

PS8A0070WE Application Field and Working Principle

The PS8A0070WE is an integrated power management integrated circuit (PMIC) that combines a number of key functions into a single package to deliver optimized power solutions for a wide range of applications.

The PS8A0070WE is designed for a wide range of applications including cellular, notebooks, tablets, and low power applications. It improves system efficiency, provides reliable system power and helps extend battery life. This integrated power management IC can reduce system complexity, increases system integration, and allows for more flexibility with fewer components.

Key features of the PS8A0070WE

• Integrated 4-channel DC-DC buck regulator: supports up to 4 channels of buck regulation for efficient power management
• Integrated high-voltage LDO: provides an efficient and cost-effective solution for lowering system voltages
• Integrated LDOs with ultra-low-noise: enables ultra-low noise operations in lower power systems
• Integrated low quiescent-current LDO: improves system power efficiency
• Integrated synchronous buck regulators: reduces the design overhead associated with multiple-output supplies
• Integrated power-on reset (POR) and thermal-overload protection (TOP): helps protect against system failure in extreme operating conditions
• Integrated adaptive body-current control: reduces power dissipated by the switches
• Integrated power-good outputs: allows for system power-up and power-down notification

Working principle of the PS8A0070WE

The PS8A0070WE is an integrated power management IC that integrates a highly-efficient step-down DC-DC buck converter with multiple output channels, a high-voltage LDO, two ultra-low-noise LDOs, two low quiescent-current LDOs, two synchronous buck regulators, and additional power management functions. The integrated buck regulator utilizes adaptive body-current control to reduce power dissipated by the external MOSFET during transient load situations. This reduces power losses, which in turn increases system efficiency.

The integrated high-voltage LDO is designed to provide a low-noise supply voltage for sensitive analog circuitry, while the two ultra-low noise LDOs provide ultra-low noise operating conditions for power-sensitive applications, such as audio applications. The two low quiescent-current LDOs are designed to provide efficient operation in applications where system power efficiency is critical, such as battery-powered systems.

In addition to the power management functions, the PS8A0070WE also provides power-on reset (POR) and thermal-overload protection (TOP) to protect against system failures in extreme operating conditions. This IC also includes two power-good outputs, which can be used to provide system power-up/power-down notifications. The PS8A0070WE is a simple, cost-effective power management solution that provides reliable system power and longer battery life.