Quality Standards and Environmental Certifications
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Automotive PMIC with Buck-Boost Pre-Regulator, 5 Linear Regulators, and SPI

A81411

A81411

The A81411 simplifies automotive power supply design, integrating a buck-boost pre-regulator, five linear regulators (including short-to-battery protected LDOs), and SPI control for flexible configuration and diagnostics.

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Top Features

Typical Applications

Packaging

  • A2-SIL™ product: Developed as a hardware safety element out of context with ASIL D capability for use in automotive safety-related systems
  • Automotive AEC-Q100 Grade 0 qualified
  • Wide input range: 3.2 to 36 V VIN operating, 40 V VIN maximum
  • 2.2 MHz synchronous buck-boost preregulator (VREG: 5.35 V) with internal compensation
  • Five internal linear regulators with fold-back short-circuit protection
  • VUC: 3.3 V or 5 V (selectable by a pin) regulator for microcontroller 
  • VLDOA: 5 V (or 3.3 V factory option) general-purpose low-dropout (LDO) regulator 
  • VLDOB: 5 V or 3.3 V (selectable by a pin) always-on LDO regulator 
  • VLDOP1 and VLDOP2: Two programmed (5 V or 3.3 V) and enabled via serial-port-interface (SPI) LDO regulators with short-to-battery protection for remote sensors 
  • Pulse-width watchdog (PWWD), window watchdog
  • Power steering
  • Braking
  • Transmission
  • Onboard charger (OBC)/DC-to-DC/inverter
  • Other automotive applications 
40-pin QFN 6 mm × 6 mm (suffix EV)
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Part Number Specifications and Availability

Documentation and Resources

Documentation

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Documents Found: 32
Document Type Document Name
Guide
A81411 Evaluation Board User Guide