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NXP Semiconductors MC33FS8430G0ES
- Part No.:
- MC33FS8430G0ES
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC33FS8430G0ES.pdf
- Description:
- SYSTEM BASIS CHIP FS8430
- Quantity:
- Payment:
- Shipping:
Inventory:240
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Product details
Overview
MC33FS8430G0ES from NXP Semiconductors is an ASIL B–capable automotive fail-safe system basis chip (SBC) integrating three synchronous buck converters (BUCK1/BUCK2/BUCK3), one boost converter, two LDOs, and safety monitoring circuitry. It delivers up to 3.6 A peak per integrated buck rail, supports 60 V DC input, features SPI/I²C interface with CRC, and enables power-up sequencing for radar and vision domain controllers.
For engineers reviewing the MC33FS8430G0ES datasheet, MC33FS8430G0ES pinout, MC33FS8430G0ES application, or MC33FS8430G0ES equivalent, this device serves as a multi-rail power management solution for ASIL B–compliant ADAS subsystems requiring functional safety, EMC-optimized frequency synchronization, and configurable voltage regulation across MCU core, I/O, and sensor rails.
Technical Context
The MC33FS8430G0ES implements a hierarchical power architecture: VPRE controller drives external MOSFETs for high-voltage pre-regulation, while BUCK1 (MCU core), BUCK2, and BUCK3 (all ≤3.6 A peak) provide tightly regulated low-voltage outputs. It integrates dual LDOs (≤400 mA each) for ADC and I/O supply, plus BOOST (≤1.5 A peak) for auxiliary rails.
Safety logic includes fail-safe output (FS0B), dedicated watchdog, power-good/reset/interrupt signals, and dual FCCU inputs for MCU error monitoring. All regulators support external frequency sync (FIN/FOUT), spread-spectrum modulation, and slew-rate control to meet stringent automotive EMC requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | −0.3 V to 60 V DC on VSUP1/VSUP2 - supports 12 V/24 V automotive battery systems including load dump (58 V) and jump-start transients. |
| BUCK1/2/3 Output Current | Up to 3.6 A peak per rail - sufficient for S32V/S32R MCU core and peripheral supplies with static voltage scaling capability. |
| LDO1/LDO2 Output | Configurable voltage, up to 400 mA DC each - powers MCU I/O banks and analog subsystems (e.g., camera sensor interfaces). |
| Quiescent Current (OFF mode) | 10 µA typical at TA < 85 °C - enables ultra-low-power sleep states in always-on ADAS modules. |
| Safety Certification | ASIL B compliant per ISO 26262, AEC-Q100 Grade 1 qualified - validated for radar, vision, and domain controller applications. |
| Interface | SPI or I²C with CRC - ensures robust communication with host MCU under EMI stress and supports OTP configuration during development. |
| Package | HVQFN56 (SOT684-23), 8 mm × 8 mm × 0.85 mm, 0.5 mm pitch, step-cut wettable flank - optimized for automated optical inspection and thermal performance (RθJA = 31 °C/W on 2s2p board). |
Pinout & Package
HVQFN56 package with exposed thermal pad (EP); 56-pin layout featuring dedicated power, analog monitoring, safety, and communication terminals. Wettable flank design enables reliable solder-joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BUCK1_SW / BUCK2_SW / BUCK3_SW | Switching node outputs | Drive external LC filters for regulated DC outputs; require careful layout to minimize EMI and voltage overshoot. |
| FS0B | Fail-safe output | Active-low open-drain signal indicating internal fault or safety state activation - directly controls external safe shutdown paths. |
| FIN / FOUT | Frequency sync I/O | Enables deterministic phase alignment of multiple SMPS across system for reduced conducted/emission peaks. |
| WAKE1 / WAKE2 | Wake-up inputs | Edge-triggered inputs with external series resistor - initiate wake-from-OFF sequence without MCU intervention. |
| VMON1–VMON4 | Analog voltage monitors | Four independent inputs for real-time supervision of critical supply rails or battery conditions via AMUX multiplexer. |
| PSYNC | Power sync I/O | Coordinates startup timing and current sharing between two MC33FS8430G0ES or with external PMICs. |
Key Features
| Feature | Design Value |
|---|---|
| Triple integrated synchronous buck regulators | Each supports configurable output voltage and up to 3.6 A peak - eliminates need for three discrete DC/DC ICs in radar/vision ECU designs. |
| Voltage monitoring & AMUX | Four VMON inputs + multiplexed analog output (AMUX) - enables single ADC channel to monitor multiple supply rails and thermal sensors. |
| Fail-safe output (FS0B) + safety logic | Dedicated hardware-driven FS0B with independent monitoring circuitry - provides immediate, deterministic response to internal faults without software dependency. |
| EMC optimization suite | Frequency synchronization, spread spectrum, slew rate control, manual tuning - reduces peak emissions by >10 dBµV in 150 kHz–108 MHz band per CISPR 25 Class 5. |
| OTP programmability | One-time programmable configuration memory - stores boot settings, voltage targets, sequencing order, and safety thresholds for production reproducibility. |
Applications
| Radar Sensor Module | Vision Processing Unit |
|---|---|
Use Scenario: Powering corner radar or imaging radar ECU with S32R274/S32R294 MCU and TEF810x RF transceiver. IC Role / Device Role / Timing Role: Central power manager providing sequenced VPRE, BUCK1 (core), BUCK2 (peripheral), LDO1 (I/O), and BOOST (RF bias) with fail-safe assertion on overtemperature or undervoltage. Use Value: Enables single-chip power solution meeting ASIL B requirements while reducing BOM count by ≥4 discrete regulators and simplifying safety validation. |
Use Scenario: Supplying mono/stereo camera module with S32V234 MCU, image sensor, and ISP. IC Role / Device Role / Timing Role: Delivers tightly regulated VCORE (BUCK1), VDDIO (BUCK2), analog supply (LDO2), and sensor bias (BOOST) with synchronized switching to suppress noise coupling into analog video path. Use Value: Achieves <10 mVpp output ripple on BUCK1 at 1.2 V/2.5 A, critical for low-noise image capture and deterministic ISP clocking. |
| ADAS Domain Controller | Infotainment Head Unit |
Use Scenario: Powering centralized ADAS domain controller integrating radar, vision, and ultrasonic processing. IC Role / Device Role / Timing Role: Manages power sequencing across heterogeneous compute clusters (e.g., S32R + S32V), supplies safety-critical monitoring circuits, and asserts FS0B on detected MCU lockup via FCCU inputs. Use Value: Reduces inter-IC communication latency for safety responses by embedding watchdog and reset logic within the SBC instead of relying on external supervisors. |
Use Scenario: Supporting infotainment head unit with display, audio DSP, and connectivity (Wi-Fi/Bluetooth) modules. IC Role / Device Role / Timing Role: Provides isolated, low-noise power rails for audio codec (LDO2), display interface (BUCK2), and application processor core (BUCK1), with OFF-mode quiescent current ≤10 µA for parking mode. Use Value: Extends battery runtime in key-off state beyond 30 days while maintaining fast wake-up (<100 µs) via WAKE1/WAKE2 detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33FS8420G0ES | Omits BUCK3 regulator; retains BUCK1/BUCK2, LDOs, BOOST, and full safety features. | Suitable for dual-rail systems (e.g., MCU core + I/O only) without need for third independent low-voltage rail. | Select when BUCK3 is unused - reduces cost and thermal load without compromising ASIL B compliance or safety monitoring. |
| MC33FS8530A0ES | ASIL D–rated version with FCCU block enabled; identical pinout and regulator topology but higher diagnostic coverage. | Required for ASIL D–partitioned systems (e.g., Level 3+ autonomous driving controllers) where end-to-end fault coverage is mandated. | Choose when functional safety target exceeds ASIL B - same footprint and software interface enable upgrade path with minimal redesign. |
Compared with MC33FS8420G0ES, MC33FS8430G0ES adds a third configurable buck rail for expanded peripheral powering, while MC33FS8530A0ES upgrades safety certification to ASIL D with enhanced diagnostic coverage - both maintain pin compatibility and share OTP programming infrastructure.
Availability
MC33FS8430G0ES is available at Aetrix Electronics and suitable for radar sensor modules, vision processing units, ADAS domain controllers, and infotainment head units requiring stable component supply across automotive production lifecycles.
Supply support for MC33FS8430G0ES includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in functional safety and automotive-grade power management.
The MC33FS8430G0ES belongs to NXP's FS84 family of fail-safe system basis chips, designed specifically for ASIL B–compliant ADAS subsystems requiring integrated multi-rail power conversion, safety monitoring, and EMC-robust operation in harsh automotive environments.
FAQ
What is the maximum continuous input voltage rating for MC33FS8430G0ES?
The MC33FS8430G0ES supports a maximum continuous input voltage of 36 V on VSUP1/VSUP2 pins. It has been validated for 48 V for 15 minutes (jump start) and 58 V load dump without external protection - all within its specified 60 V absolute maximum rating.
Does MC33FS8430G0ES support power-up sequencing across its multiple output rails?
Yes, MC33FS8430G0ES supports configurable power-up sequencing via OTP programming. The device allows definition of startup order and delay intervals between BUCK1, BUCK2, BUCK3, LDO1, LDO2, and BOOST outputs to meet strict MCU and sensor initialization requirements.
How does the fail-safe output (FS0B) function in MC33FS8430G0ES?
The FS0B pin on MC33FS8430G0ES is an active-low, open-drain fail-safe output that asserts during internal fault conditions (e.g., overtemperature, undervoltage, watchdog timeout, or safety logic violation). It operates independently of MCU firmware and can directly drive external safety relays or shutdown circuitry.
Can MC33FS8430G0ES be used with both SPI and I²C interfaces?
Yes, MC33FS8430G0ES supports both SPI and I²C communication protocols with CRC error checking. Interface selection is configured via OTP; SCLK/MOSI/MISO/CSB pins are used for SPI, while SCL/SDA are used for I²C - both modes support full register read/write and safety status reporting.
What package type and thermal performance does MC33FS8430G0ES use?
MC33FS8430G0ES uses the HVQFN56 (SOT684-23) package with step-cut wettable flanks, 8 mm × 8 mm × 0.85 mm body. Its thermal resistance is RθJA = 31 °C/W on a 2s2p PCB and RθJB = 15 °C/W, enabling operation up to 125 °C ambient with appropriate copper pour and thermal vias under the exposed pad.
MC33FS8430G0ES Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- System Basis Chip
- Current - Supply:
- 15mA
- Voltage - Supply:
- 60V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 56-HVQFN (8x8)
MC33FS8430G0ES FAQ
1.How can I place an order for MC33FS8430G0ES through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33FS8430G0ES on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC33FS8430G0ES reliable?
The price and inventory of MC33FS8430G0ES are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33FS8430G0ES is usually 5 days.
3.What payment methods are accepted for MC33FS8430G0ES?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33FS8430G0ES transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33FS8430G0ES?
MC33FS8430G0ES orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33FS8430G0ES order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC33FS8430G0ES?
For technical support, including MC33FS8430G0ES datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33FS8430G0ES requirements.
6.How does Aetrix verify that MC33FS8430G0ES is sourced from the original manufacturer or authorized distributors?
All MC33FS8430G0ES products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC33FS8430G0ES meets industry standards.
7.What is the process for return or replacement of MC33FS8430G0ES?
All MC33FS8430G0ES units undergo pre-shipment inspection (PSI). If there is an issue with MC33FS8430G0ES, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC33FS8430G0ES part is unused and in its original packaging.
Return procedure for MC33FS8430G0ES:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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