ET80101

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ET80101 General Description

The ET80101 is high efficiency and Low Iq buck-boost converters. Depending on the input voltage, they automatically operate in boost, buck or in a novel buck-boost mode when the input voltage is approximately equal to the output voltage.The transitions between modes happen at defined thresholds and avoid unwanted toggling within the modes to reduce output voltage ripple.

The ET80101 can be controlled by an I 2C compatible interface that supports High-speed Plus mode(1MHz).These features include: Output voltage programmed, Auto PFM or FPWM mode select, Software startup or shutdown, State Flag,PG function, etc. The output voltage is also controlled by an external VSEL pin. The output voltage default to 3.5V when VSEL pin is logic high, and it default to 3.3V when VSEL pin is logic low.

The ET80101 is available in small WLCSP9 (1.28×1.28-0.4mm Pitch) Package.

ET80101 Key Features

  • Input voltage range: 2.2V to 5.0V
  • Output voltage range
  • Address select by VSEL
  • High efficiency over entire load range
  • Less than 5μA operating quiescent current
  • Automatic PFM and FPWM mode
  • Defined transitions between buck, buck-boost and boost operation
  • Forward and reverse current operation
  • Safety and robust operation features
  • Integrated soft start
  • Over-temperature,Short,current limit protection
  • Forward and backward current limit
  • True load disconnect during shutdown
  • I2C interface supporting 1 MHz rate
  • Package:WLCSP9(1.28×1.28-0.4mm Pitch)

ET80101 Technical Documentation

Type Title Format Date
No documentation available.

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