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LM5177 - Bidirectional 4-Switch Buck-Boost Controller

General Description

The LM5177 is a four switch buck-boost controller.

The device provides a regulated output voltage if the input voltage is higher, equal, or lower than the adjusted output voltage.

In power save mode, the device supports high efficiency with low output loads due to its low quiescence currents.

Key Features

  • Wide input range from 3.5V to 60V (85V absolute maximum).
  • Minimum 2.8V when V(BIAS) > 3.5V.
  • Output voltage from 3.3V to 60V.
  • Low shutdown IQ of 3μA.
  • Low operating IQ of 60μA.
  • 3% reverse current limit accuracy for precise charging currents.
  • Average input and output current monitor or limiter.
  • Dynamic output voltage tracking for PWM or analog input signals.
  • Power save mode (PSM) selectable for high light load efficie.

📥 Download Datasheet

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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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LM5177 SNVSBU4F – JUNE 2022 – REVISED JANUARY 2025 LM5177 60V Wide VIN Bidirectional 4-Switch Buck-Boost Controller 1 Features • Wide input range from 3.5V to 60V (85V absolute maximum) – Minimum 2.8V when V(BIAS) > 3.5V • Output voltage from 3.