The shift toward electrification, advanced driver-assistance systems (ADAS), and in-vehicle infotainment (IVI) is transforming the automotive industry. Behind these innovations lies a crucial enabler: efficient, scalable, and reliable power management.
To meet the growing complexity of automotive electronic systems, STMicroelectronics (ST) offers a suite of automotive-grade multichannel power management ICs (PMICs) that simplify design, enhance safety, and reduce system footprint.
At DRex Electronics, we support OEMs and Tier 1 automotive suppliers with fast access to automotive-qualified ST PMICs, ensuring your designs meet functional safety, efficiency, and integration demands.
⚡ What Are Multichannel Power Management ICs?
Multichannel PMICs are integrated circuits that manage multiple voltage rails from a single input source. In automotive systems, they:
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Deliver power to multiple loads (MCUs, sensors, actuators)
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Reduce BOM complexity
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Save board space
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Improve thermal management
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Support ISO 26262 functional safety
ST’s automotive PMICs typically integrate:
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Buck converters
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LDO regulators
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Watchdogs
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CAN/LIN transceivers
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Safety monitoring functions
→ Explore power management ICs at DRex Electronics
🚘 Why STMultichannel PMICs for Automotive?
STMicroelectronics is a market leader in automotive electronics, offering highly integrated solutions for ADAS, BCM (body control modules), IVI, HVAC, and EV powertrains.
Key Benefits:
✅ AEC-Q100 qualification
✅ ASILD or ASILB support for functional safety
✅ High efficiency over wide input voltage ranges (e.g. 3.5V to 36V)
✅ Integrated power sequencing and diagnostics
✅ Support for low standby current modes
🔗 Learn more about ST’s automotive PMIC portfolio (external link)
🏁 Top ST Multichannel PMICs for Automotive Designs
1. L99PM62GXP
A highly integrated power management system IC with embedded CAN, high-side drivers, and multiple regulators—ideal for body electronics and gateway ECUs.
Features:
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2x Buck converters (up to 1.5 A)
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2x LDOs
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CAN and LIN transceivers
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Watchdog and reset logic
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SPI interface
2. SPC58ECxx Series PMICs
Paired with ST’s own automotive MCUs for chassis, powertrain, and safety domains.
→ Need help sourcing ST MCUs and PMICs? Contact DRex
🧩 Key Applications
| Application | PMIC Role |
|---|---|
| ADAS & Sensors | Powering radar, lidar, and camera modules with low-noise regulators |
| Infotainment & Display | Managing multiple rails for SoCs, memory, and display panels |
| Body Control Modules | Controlling locks, mirrors, lights with high-side switches |
| EV Powertrain Controllers | Enabling efficient DC-DC conversion and load monitoring |
| Zone ECUs & Gateways | Providing fault-protected, synchronized power to multiple submodules |
ST’s multichannel PMICs are designed to work across the full temperature range of -40°C to 150°C, ensuring performance in harsh automotive environments.
🔐 Functional Safety & Diagnostic Features
Modern automotive electronics must comply with ISO 26262 functional safety standards. ST’s automotive PMICs support:
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ASIL-B or ASIL-D target levels
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Built-in voltage monitoring, fail-safe outputs, and power-good indicators
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Independent watchdogs for MCU supervision
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Fault reporting via SPI or I²C interfaces
These features help reduce time-to-certification for critical systems like ADAS and steering ECUs.
→ Learn more about ST’s ISO 26262 support (external link)
🛠️ Design Considerations
When designing with ST multichannel PMICs, consider:
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Matching output current ratings to load demands
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Sequencing order for digital and analog supplies
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EMI/EMC compliance via spread-spectrum modulation and filtering
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Heat dissipation with proper layout and thermal vias
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Communication compatibility with MCU (SPI, CAN, LIN)
At DRex Electronics, we help engineers select the right PMIC based on their load profile, functional safety level, and vehicle subsystem requirements.
→ Talk to our sourcing experts for part selection and cross-referencing
📦 Why Source ST Automotive PMICs from DRex?
DRex Electronics is a trusted supplier of automotive-grade semiconductors. We offer:
✅ Genuine STMicroelectronics parts with ISO 9001 traceability
✅ Fast global shipping for both R&D and production lines
✅ Support for EOL/NRND part alternatives
✅ Cross-referencing for legacy vehicle platform upgrades
✅ One-stop sourcing for PMICs, MCUs, sensors, and connectors
→ Explore our automotive component catalog
📈 Final Thoughts
As vehicles evolve into rolling data centers, the importance of robust, multi-output power management cannot be overstated. ST’s automotive multichannel PMICs offer the integration, efficiency, and safety features needed to power the future of mobility—whether it’s ADAS, EV, or zonal architectures.
DRex Electronics stands ready to help your team access the right ST components—quickly, reliably, and globally.
🛒 Start Sourcing ST Automotive PMICs Today
→ Browse power management ICs at DRex Electronics
→ Request a quote or BOM review
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