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Product Features

  • Three Step-Down DC/DC Converters
  • Four Low-Dropout Linear Regulators
  • Integrated ActivePath Charger
  • I2MC™ Serial Interface
  • Advanced Enable/Disable Sequencing Controller
  • Minimal External Components
  • Tiny 5×5mm TQFN55-40 Package
  • Pb-Free and RoHS Compliant

The ACT8946A is a complete, cost effective, highly-efficient power management solution, optimized for the unique power, voltage-sequencing, and control requirements. It is ideal for a wide range of high performance portable handheld applications such as human-machine interfaces, control panels, smart grid infrastructures, network gateways, M2M systems, 2D barcode scanners, barcode printers, machine vision equipment, as well as home and commercial building automations, POS terminals, medical devices and white goods. This device integrates the complete battery charging and management system with seven power supply channels.

This device features three step-down DC/DC converters and four low-noise, low-dropout linear regulators, along with a complete battery charging solution featuring the advanced ActivePath system-power selection function.The three DC/DC converters utilize a high-efficiency, fixed-frequency (2MHz), current-mode PWM control architecture that requires a minimum number of external components. Two DC/DCs are capable of supplying up to 1100mA of output current, while the third supports up to 1200mA. All four low-dropout linear regulators are high-performance, low-noise regulators that supply up to 320mA of output current.

The ACT8946A is available in a compact, Pb-Free and RoHS-compliant TQFN55-40 package.

Advantages of our Modular Power PMU

Features Benefits
Space Saving With fully integrated power stages with high switching frequency
of 2.25MHz (1.125Mhz) to reduce external component size
Integrated sequencing Easy system level design with programmable Reset and Power
Good functions allows for flexible sequencing options
Seamless sequencing With external supplies via integrated GPIOs and Power Good signals
Highly configurable Via a I2C uP interface for status reporting and controlling

  • Tablet PC
  • Mobile Internet Device (MID)
  • EBooks
  • Personal Navigation Devices
  • Smartphones