ams launches new Battery Management IC AS3709

The AS3709 features 5 high-efficiency, constant-frequency synchronous buck converters and two universal LDOs. The input voltage range (2.7V to 5.5V), automatic power-save mode and minimal external component requirements make the AS3709 perfect for any single Li-Ion battery-powered or fixed 3.3V/5V supply application.


Key Features

  • 5 DCDC step down regulators (2-4MHz)
  • 2 universal IO LDOs
  • OTP programmable Boot and Power-down sequence
  • Stand-by function with programmable sequence and voltages
  • Control Interface, I2C/SPI control lines, ON key with 4/8s emergency shut-down, POR with RESET I/O

Key Benefits

  • Compact design due to small coils for IO and memory voltage generation
  • Independent voltage rails for general purpose IO supplies
  • Flexible and fast adaptation to different processors/applications
  • Power saving control according to the processor’s needs
  • Self-contained start-up and control for single-cell battery applications; safety shutdown feature


  • SSDs, mobile communication devices
  • Laptops and PDAs
  • Ultra-low-power systems
  • Medical instruments or any other space-limited application with low power-consumption requirements.

Please be aware of that we`re able to deliver you pre-programmed AS3709 about our INELTEK ProgCenter

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