Features
• AEC-Q100 qualified
• 2 configurable (6.5 V, 5 V, 3.3 V) BUCK converters and typ peak switching
current limit of 3.0 A at 2.4 MHz or 400 kHz
• 1 configurable (3.3 V, 1.25 V, 1.2 V, 1.1 V, 0.98 V) BUCK converter and typ
peak switching current limit up to 6.0 A at 2.4 MHz, with fine-tuning
configurability around 0.98 V (0.95 V to 1.01 V)
• Overcurrent detection and limitation for all BUCKs
• Integrated soft start on BUCK stages
• Boost controller 8-9.5 V and typ peak switching current limit of 4.2 A at 400
kHz, for sustaining low battery condition occurring for a transitory time and
deep cranking pulse (external power components can be optionally populated)
• One 5 V voltage regulator (120 mA, 2% acc.)
• One configurable (5 V or 3.3 V) low drop voltage tracker of all regulators (10
mA, ±10 mV)
• One high side driver for contact monitoring (RON = 55 Ω) with open-load and
overcurrent diagnosis
• Dedicated interrupt pin for failure communication
• Device operates in low power mode
• Very low quiescent current in DEEP-SLEEP state
• MCU reset generator
• Configurable window watchdog with extended long open window up to 9 s and
enable/disable function through NVM bit
• Device contains temperature warning and protection
• Thermal clusters
• A/D conversion of supply voltages and internal temperature sensors
• STMicroelectronics standard serial peripheral interface (32 Bit/ST_SPI)
including 4-bit CRC
• 1 fail-safe output
• 1 input pin supporting static and dynamic error signal reporting
• Programmable periodic system wake-up feature
• Documentation available for customers that need support when dealing with
ASIL requirements as per ISO26262
• VFQFN56+4L 8x8x0.9 with wettable flank, 0.8 mm package

Description
The SPSB100 is a fully integrated automotive power management system IC,
especially designed for highly integrated application processors (for example,
Stellar G and P MCU families), offering low power mode and high current capability:
the device comes with enhanced system power supply functionality.
It combines a 3-switch mode power supply together with two integrated linear voltage
regulators. The device integrates a further 2 wake-up inputs and advanced fail-safe
functionalities.