EFP01 Energy Friendly PMIC

The EFP01 Energy Friendly Power Management IC (PMIC) is an extremely flexible, highly-efficient, multi-output power management IC, providing complete system power and primary cell battery Coulomb counting for EFM32 and EFR32 devices. These devices operate over a wide input voltage range (0.8 to 5.5 V) with quiescent current as low as 150 nA. EFP01 provides three voltage output rails and four supply outputs – 1x buck/boost converter, 1x buck-only DC-DC converter + LDO, 1x LDO and 1x switched – delivering up to 94% efficiency.

Supports Single alkaline, dual alkaline, single lithium and USB
Ideal for ultra-low-power battery-powered IoT devices

EFP01 PMIC Common Specs

Voltage Output A (VOA)

  • Output Voltage: 1.7 V to 5.2 V
  • DCDC A can be configured in Buck/Boost, Buck-only, orBoost-only
  • DCDC A output be combined with the VOC linear regulatorfor more efficient regulation as the input voltage approachesthe output voltage
  • Firmware-programmable switched output (VOA_SW) allows complete powerdown of high leakage external circuitry in low power modes

Voltage Output B (VOB)

  • Output Voltage:
    • 0.8 V to 3.3 V (EFP0109/EFP0111)
    • 0.8 V to 1.255 V (EFP0104/EFP0108)
  • 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

Voltage Output C (VOC)

  • Output Voltage: 1.7 V to 3.3 V
  • Linear regulator only
  • Can be used either to create an independent third outputsupply 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 energymodes
  • IRQ pin to notify host processor

Ultra-low Quiescent Current

  • 150 nA with no outputs enabled
  • 300 nA with a single output enabled
  • +125 nA 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 1.2 V
  • Over-temperature monitoring and IRQ assertion

Wide Operating Range

  • 0.8 V to 5.5 V input power supply
  • -40 to 100 °C junction temperature

Package

  • QFN20 3x3 mm 
Status
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Part Number Vdd Range (V) Output Voltage Range (V) Number of Output Voltage Rails Lowest Quiescent Current (nA) Coulomb Counting Temperature Range ºC I2C Dig I/O Pins Package Type Package Size (mm)
1.8 3.6 1.7 3.3 3 150 -40 85 1 2 QFN20 3x3
0.8 1.8 1.7 3.3 3 150 -40 85 1 2 QFN20 3x3
1.8 5.5 1.7 5.2 3 150 -40 85 1 2 QFN20 3x3
1.5 5.5 1.7 5.2 3 150 -40 85 1 2 QFN20 3x3

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