NXP Semiconductors FS04 High Voltage Safety PMICs
NXP Semiconductors FS04 High Voltage Safety PMICs are automotive multi-output power management ICs for central compute, gateway, domain controller, and zonal controller applications. The FS04 devices combine a high-voltage buck converter, multiple high-efficiency switched-mode power supplies, and a linear voltage regulator for S32N processor power architectures. The PMICs incorporate enhanced safety features, such as fail-safe outputs and dedicated S32N safety pins, supporting ASIL B and ASIL D safety integrity levels.
The NXP FS04 PMICs support safety-oriented system partitioning and can be configured as a non-safety QM-version part when required. The devices integrate one high-voltage synchronous buck controller, five internal-stage buck regulators, one boost regulator, one low-power LDO or load switch, real-time monitoring, diagnostics, ABIST, LBIST, and high-speed I2C communication. The FS04 PMICs also provide low-power standby operation, advanced thermal monitoring, configurable OTP memory, and automotive AEC-Q100 Grade 1 qualification for demanding vehicle compute platforms.
Features
- Automotive multi-output PMIC architecture for central compute, gateway, domain controller, and zonal controller applications
- Functional safety architecture targeting ASIL D applications with ASIL B and ASIL D support
- Real-time monitoring, safety mechanisms, diagnostics, ABIST, and LBIST for latent fault detection
- Advanced frequency management with spread spectrum, slew-rate control, and manual frequency tuning
- Advanced thermal monitoring and thermal shutdown protection
- Enhanced safety features with fail-safe outputs and dedicated S32N processor safety pins
- Optimized low-power architecture for standby operation with three regulators enabled
- One-time programmable memory for flexible device configuration
- EMC optimization techniques and EMI robustness for automotive switching-regulator environments
Applications
- Central compute
- Gateway applications
- In-vehicle networks
- Domain controllers
- Zonal controllers
- Safety-oriented automotive system partitioning
Specifications
- Standby-mode quiescent current of 35µA with three regulators enabled
- High-speed I2C interface with up to 3.4MHz operation
- Temperature range of -40°C to +125°C
- Five buck regulators with an internal power stage
- BUCK1 single-phase output range of 1.0V to 1.8V at 2.5A DC
- BUCK2 single-phase output range of 1.0V to 1.8V at 2.5A DC
- BUCK3 single-phase output range of 0.4V to 1.8V at 2.5A DC
- BUCK4 single-phase output range of 0.4V to 1.8V at 2.5A DC
- BUCK5 output range of 0.6V to 1.8V with 70mA in buck mode and 150mA in switch mode
- One high-voltage synchronous buck controller driving external MOSFETs
- Input voltage range of 3.0V to 60V
- Output voltage range of 3.3V to 5.3V
- Output current capability up to 20A DC
- Switching frequency range of 430kHz to 480kHz
- One boost regulator with an output voltage range of 4.5V to 5.5V and 1A DC output current
- One low-power linear regulator or load switch with an output voltage range of 1.0V to 4.1V and 400mA DC output current
- ISO 26262 compliance and ASIL B/D safety integrity level coverage
- AEC-Q100 Rev. H Grade 1 qualification with MSL3
- 64-pin QFN package with exposed pad and 0.5mm pitch
Associated Products
NXP Semiconductors VR5510 Multi-Output PMICs
Automotive Multi-Output PMICs designed for Gateway, ADAS, V2X, and infotainment applications.
Evaluation Boards
NXP Semiconductors KITFS0400A0EVM Evaluation Board
Soldered FS04 evaluation board with PF53 PMICs, FRDM-KL25Z bridge, and NXP GUI support.
NXP Semiconductors KITFS0400SKTEVM Evaluation Board
Socketed FS04 evaluation board with FRDM-KL25Z bridge and OTP programming support.
Block Diagram
