Automotive Multi-Output Voltage Regulator with Buck Converter, LDOs, and Protection

A8450

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The A8450 provides a versatile power solution for automotive applications, integrating a buck converter, multiple LDO regulators (including short-to-battery protected outputs), and comprehensive protection features for robust operation.

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Top Features

Packaging

  • 6 V to 45 V input range
  • DC-to-DC buck converter with 5.7 V output
  • Overcurrent protection with foldback, and undervoltage lockout
  • Dual 5 V outputs
    • Digital 5 V ±2%, 200 mA
    • Analog 5 V, 200 mA
    • Short-to-supply protection on analog regulator
    • Analog to digital regulator output tracking < 0.5%, throughout operating temperature range
  • 3.3 V linear regulator, with foldback current limit
  • Adjustable 1.2 V to 3.3 V linear regulator, adjustable foldback
  • Ignition switch enable; Sleep mode
  • 100% duty cycle operation for low input voltages
  • Power OK output
  • -40°C to 135°C ambient operating temperature range

The A8450 is supplied in a 24-pin SOIC package (part number suffix LB) with fused power ground pins for enhanced thermal performance. 

LB Package Documentation

Part Number Specifications and Availability

Documentation and Resources

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