DCDC Regulators

Automotive Buck-Boost Controller with Integrated Buck MOSFET for Wide VIN Range Applications

A4450

The A4450 provides flexible and efficient power management for automotive applications where input voltage can be above or below the regulated output voltage. It features an integrated buck MOSFET, wide operating range (3V-36V), and comprehensive protection features.

Product Details

Top 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 tolerant at every pin
  • Thermal shutdown protection
  • Operating junction temperature range −40°C to 150°C
Target Application

Part Number Specifications and Availability

Design Tools