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MAX77887 - Nano Power Buck-Boost

Description

The MAX77887 is a high-efficiency nano power buckboost converter with an input voltage monitoring feature, ensuring that the battery voltage does not drop below the pre-set threshold levels to protect the battery.

The converter operates on an input supply between 1.8V and 5.5V.

Features

  • 1.8V to 5.5V Input Voltage.
  • Output Voltage from 1.8V to 5.2V.
  • Peak Efficiency of 92.5% (5.5VIN, 3.8VOUT).
  • 430nA Typical Quiescent Current.
  • 10nA Shutdown Current.
  • RSEL Configurations.
  • Output Voltage.
  • 400mA/200mA Switching Current Limit.
  • 16 Input Voltage Monitoring Threshold Levels.
  • Protection Features.
  • Input Undervoltage Lockout (UVLO).
  • Switching Current Limit.
  • Thermal Shutdown (T.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MAX77887 Nano Power Buck-Boost with Input Voltage Monitor General Description The MAX77887 is a high-efficiency nano power buckboost converter with an input voltage monitoring feature, ensuring that the battery voltage does not drop below the pre-set threshold levels to protect the battery. The converter operates on an input supply between 1.8V and 5.5V. Output voltage between 1.8V and 5.2V is configured through a resistor connected to the hardware control pin, RSEL1. It can operate in CCM, Skip, and Low Power Mode to ensure maximum efficiency over a wide range of load currents. MAX77887 offers two unique hardware control pins RSEL1 and RSEL2. The resistor connected at SEL1 (RSEL1) selects the predefined output voltage from 1.8V to 5.2V as OUT.
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