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Silicon Labs EFP01 Energy Friendly PMICs

Silicon Labs EFP01 Energy Friendly PMICs are extremely flexible and highly efficient multi-output power management ICs. These PMICs provide the complete system power and primary cell battery coulomb counting for EFM32 and EFR32 devices. The EP01 PMICs offer 4 supply outputs such as one buck/boost DC-DC converter, one buck-only DC-DC converter and LDO, one LDO, and one switched output. These PMICs feature 94% efficiency and 250nA low quiescent current. Typical applications include IoT sensors and end devices, metering, wearables, smart accessories, human interface devices, health, and wellness.

Features

  • VOA
    • 1.7V to 5.2V Output voltage
    • DCDC A can be configured in Buck/Boost, Buck-only, or Boost-only
    • DCDC A output be combined with the VOC linear regulator for more efficient regulation as the input voltage approaches the output voltage
    • Firmware-programmable switched output (VOA_SW) allows complete powerdown of high leakage external circuitry in low power modes
  • VOB
    • Output Voltage:
      • 0.8V to 3.3V (EFP0109/EFP0111)
      • 0.8V to 1.255V (EFP0104/EFP0108/EFP0110)
    • DCDC B can be used only in Buck configuration
    • Dedicated internal linear regulator in parallel provides more efficient regulation as the input voltage approaches the output voltage
  • VOC
    • 1.7V to 3.3V Output voltage
    • Linear regulator only
    • Can be used either to create an independent third output supply or in conjunction with DCDC A
  • Coulomb Counter
    • Lossless (i.e. no sense resistor) measurement of charge into the load
  • Communication & Control
    • Fully configurable I2C
    • Direct Mode supports fast transitions between energy modes
    • IRQ pin to notify host processor
  • Ultra-low EM2 Quiescent Current
    • 150nA with no outputs enabled
    • 300nA with a single output enabled
    • +125nA for each additional output enabled
  • Safety
    • Programmable inrush current
    • Short-circuit tolerant outputs
    • Under-voltage lock-out (UVLO) circuitry holds device in lowest power reset state when VDDB is below 1.2V
    • Over-temperature monitoring and IRQ assertion
  • Wide Operating Range
    • 0.8V to 5.5V input power supply
    • -40 to 100°C junction temperature
  • QFN20 3x3mm package

Applications

  • IoT sensors and end devices
  • Metering
  • Home and building automation and security
  • Health and wellness
  • Wearables
  • Smart accessories
  • Human interface devices

Videos

Block Diagram

Block Diagram - Silicon Labs EFP01 Energy Friendly PMICs

Associated Products

Silicon Labs SLEVK1000A Evaluation Kit

Evaluates and characterizes the EFP0108 multi-output PMIC in single-cell boost configuration.

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Silicon Labs SLEVK1000B Evaluation Kit

A starting point to evaluate and characterize the EFP01 PMIC in the boost bootstrap configuration.

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Silicon Labs SLWRB4179B Radio Board

Ideal development platform to evaluate the EFP0104 wired buck PMIC and the EFR32xG21 wireless SoC.

Learn Moreabout Silicon Labs SLWRB4179B Radio Board View Productsrelated to Silicon Labs SLWRB4179B Radio Board
Published: 2020-04-27 | Updated: 2024-03-06