Automotive PMIC with Buck-Boost Pre-Regulator, 5 Linear Regulators, and SPI

A81411

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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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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