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A4450 - Buck-Boost Controller

General Description

The A4450 is a power management IC that can implement either a buck or buck-boost regulator to efficiently convert automotive battery voltages into a tightly regulated voltage.

It includes control, diagnostics, and protection functions.

Key Features

  • Automotive AEC-Q100 qualified.
  • Wide operating range of 3 to 36 VIN, 40 VIN maximum, covers automotive stop/start, cold crank, double battery, and load dump.
  • Regulated output can operate up to 2 A DC.
  • Adjustable PWM switching frequency: 250 kHz to 2.2 MHz.
  • PWM frequency can be synchronized to external clock: 250 kHz to 2.4 MHz.
  • Frequency dithering helps reduce EMI/EMC.
  • Undervoltage protection.
  • Pin-to-pin and pin-to-ground to.

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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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A4450 Buck-Boost Controller with Integrated Buck MOSFET FEATURES AND BENEFITS • Automotive AEC-Q100 qualified • Wide operating range of 3 to 36 VIN, 40 VIN maximum, covers automotive stop/start, cold crank, double battery, and load dump • Regulated output can operate up to 2 A DC • Adjustable PWM switching frequency: 250 kHz to 2.2 MHz • PWM frequency can be synchronized to external clock: 250 kHz to 2.