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NXP Semiconductors MC33FS8530A0KS
- Part No.:
- MC33FS8530A0KS
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC33FS8530A0KS.pdf
- Description:
- SAFETY POWER MANAGEMENT IC, QFN5
- Quantity:
- Payment:
- Shipping:
Inventory:3,136
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Product details
Overview
MC33FS8530A0KS from NXP Semiconductors is an ASIL D–compliant automotive fail-safe system basis chip (SBC) integrating three synchronous buck converters (BUCK1/2/3), one boost converter, two LDOs (LDO1/LDO2), and comprehensive safety monitoring. It delivers up to 3.6 A per buck rail, supports 60 V DC input, and features SPI/I²C control, frequency synchronization (FIN/FOUT), and a dedicated fail-safe output (FS0B). It targets radar, ADAS domain controllers, and vision systems requiring functional safety and multi-rail power sequencing.
For engineers reviewing the MC33FS8530A0KS datasheet, MC33FS8530A0KS pinout, MC33FS8530A0KS application, or MC33FS8530A0KS equivalent, key selection criteria include ASIL D compliance, triple-buck + boost + dual-LDO integration, fail-safe state machine behavior, OTP-configurable power-up sequencing, and support for radar sensor power domains with SVS and thermal shutdown recovery.
Technical Context
The MC33FS8530A0KS implements a hierarchical safety architecture with independent monitoring circuitry, including ABIST, LBIST, FCCU, and ERRMON inputs. Its fail-safe state machine asserts FS0B on detected faults and supports deep fail-safe autoretry (infinite cycles). Power management includes configurable power-up sequencing across eight slots, dynamic voltage scaling (DVS), and thermal shutdown (TSD) response per regulator with DFS propagation.
It integrates a 32-bit SPI/I²C interface with CRC, programmable watchdog (challenger or simple mode), PGOOD/RSTB outputs, and analog multiplexing (AMUX) for MCU ADC monitoring of internal voltages. The device supports external frequency synchronization (FIN/FOUT), PSYNC for multi-device coordination, and EMC optimization via spread spectrum and slew rate control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Functional Safety Level | ASIL D compliant per ISO 26262, qualified to AEC-Q100 Grade 1 (−40 °C to +150 °C) |
| Input Voltage Range | 60 V DC max - supports 12 V and 24 V automotive battery architectures with reverse-battery protection diodes required on VSUP1/VSUP2 |
| BUCK Regulators | Three integrated synchronous bucks: BUCK1 (1.35 V @ 3.6 A), BUCK2 (1.8 V @ 3.6 A), BUCK3 (1.2 V @ 2.6 A); all support 2.22 MHz switching and phase shifting |
| BOOST Converter | Integrated low-side switch; 5.0 V output, 1.5 A peak input current, 2.22 MHz operation, and BOOST shutdown on thermal fault |
| LDO Outputs | LDO1 (2.5 V / 400 mA), LDO2 (3.3 V / 400 mA); both support voltage supervision and shutdown-on-TSD with DFS propagation |
| Interface & Control | SPI/I²C (0x20 I²C address), CRC-protected commands, OTP-programmable configuration, and engineering-mode emulation via GUI and socketed EVB |
| Fail-Safe Features | Dedicated open-drain FS0B output, infinite-deep fail-safe autoretry, configurable PGOOD monitoring per rail (VCOREMON, VDDIOMON, VMON1–4), and RSTB with external reset detection |
Pinout & Package
MC33FS8530A0KS is housed in a HVQFN56 package (8 mm × 8 mm × 0.85 mm, 0.5 mm pitch, wettable flank, exposed thermal pad). Pin count is 56, with 57th connection being the exposed pad (EP) tied to GNDFS/GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FS0B (Pin 14) | Fail-safe output | Active-low open-drain signal asserting system-level fail-safe state; driven by internal safety state machine on fault detection |
| VCOREMON (Pin 17) | Core voltage monitor input | Must be connected directly to BUCK1 output to enable SVS and over/under-voltage fault detection with 45 µs OV_DGLT |
| PGOOD (Pin 18) | Power-good indicator | Active-low output signaling stable regulation across monitored rails; requires external pull-up to VDDIO |
| RSTB (Pin 19) | Reset output | Active-low MCU reset signal with external reset voltage monitoring; pull-up to VDDIO mandatory |
| FIN / FOUT (Pins 20 / 24) | Freq sync I/O | Enables system-wide SMPS frequency alignment to reduce EMI peaks; supports daisy-chaining multiple FS85 devices |
| PSYNC (Pin 38) | Power sync I/O | Allows synchronized startup/shutdown between two MC33FS8530A0KS or one FS85 and an external PMIC |
| AMUX (Pin 29) | Analog multiplexer output | Provides selectable analog monitoring (e.g., VDDIO, VCORE, VBOOST) to MCU ADC via SPI/I²C register control |
| WAKE1 / WAKE2 (Pins 49 / 1) | Wake-up inputs | Configurable digital/analog wake sources; require external series resistor if used as global wake pins |
Key Features
| Feature | Design Value |
|---|---|
| Triple synchronous buck + boost + dual-LDO integration | Reduces BOM count and PCB area in radar/ADAS domain controllers by consolidating six regulated rails into single IC |
| ASIL D safety architecture with FCCU and ERRMON | Enables safe partitioning of MCU failure monitoring and external IC error detection without additional safety components |
| Configurable power-up sequencing across 8 slots | Supports complex boot-order requirements (e.g., BUCK1 before BUCK3 before LDO2) for multi-core radar SoCs like S32R294 |
| OTP-programmable regulator settings and safety thresholds | Allows pre-production customization of output voltages, OV/UV thresholds, and TSD responses without hardware change |
| EMC-optimized SMPS control | Includes spread spectrum, slew rate control, and manual frequency tuning to meet CISPR-25 Class 5 radiated emissions limits |
| Fail-safe state machine with infinite autoretry | Guarantees deterministic recovery behavior after fault - critical for radar systems requiring continuous operation under transient stress |
Applications
| Radar Sensor Power Supply | ADAS Domain Controller Power Management |
|---|---|
Use Scenario: Powers NXP S32R294-based imaging radar modules with 12 V/24 V battery input and strict EMI requirements. IC Role / Device Role / Timing Role: MC33FS8530A0KS serves as primary power manager, delivering VCORE (1.35 V), VDDIO (3.3 V), and analog supply (1.2 V) while synchronizing SMPS clocks to minimize radar chirp interference. Use Value: Integrated BUCK1/BUCK2/BUCK3 eliminate discrete regulators; FIN/FOUT synchronization reduces system-level radiated emissions by >6 dBµV. | Use Scenario: Supplies power to multi-SoC ADAS domain controller (e.g., S32G + S32R) with coordinated startup, safety monitoring, and fail-safe assertion. IC Role / Device Role / Timing Role: MC33FS8530A0KS acts as central SBC, managing power sequencing across eight slots, feeding VCORE/VDDIO to each SoC, and asserting FS0B upon detected MCU failure via FCCU inputs. Use Value: Single-chip solution replaces legacy multi-PMIC designs; ASIL D compliance eliminates need for external safety monitors in domain controller safety concept. |
| Vision System Core Power | Automotive Infotainment SoC Supply |
Use Scenario: Powers S32V-based mono/stereo camera modules requiring precise core voltage tracking and thermal resilience. IC Role / Device Role / Timing Role: MC33FS8530A0KS delivers 1.03125 V (BUCK1), 1.8 V (BUCK2), and 3.3 V (LDO2) with SVS-enabled VCOREMON monitoring and soft-start ramp rates (7.81 mV/µs). Use Value: DVS-controlled soft-start prevents inrush current during cold cranking; TSD-triggered DFS ensures graceful shutdown without MCU intervention. | Use Scenario: Supplies NXP i.MX8-based infotainment head units with high-current LDOs, robust wake-up capability, and fail-safe signaling to vehicle network. IC Role / Device Role / Timing Role: MC33FS8530A0KS provides 1.2 V (BUCK3), 3.3 V (LDO2), and 5.0 V (BOOST) while using WAKE1/WAKE2 for CAN/LIN-initiated wake and FS0B for cluster warning activation. Use Value: Dual wake inputs and fail-safe output enable seamless integration into vehicle-wide power management networks without added logic ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33FS8520A0KS | Omits BUCK3; supports only BUCK1 + BUCK2 + BOOST + dual-LDO; identical ASIL D safety architecture and pinout | Suitable for dual-rail radar or vision systems where third buck is unnecessary (e.g., S32R274-based corner radar) | Select when BUCK3 is unused - reduces cost and simplifies layout without sacrificing safety or interface compatibility |
| MC33FS8430G0KS | ASIL B rated; lacks FCCU, ERRMON, and deep fail-safe autoretry; same regulator count and package but lower safety integrity | Targeted at non-safety-critical infotainment or gateway modules where ASIL D is not mandated | Choose for cost-sensitive ASIL B designs; not suitable for radar/vision where ASIL D is required by system safety plan |
Compared with MC33FS8520A0KS and MC33FS8430G0KS, the MC33FS8530A0KS uniquely delivers full ASIL D compliance with triple-buck capability and infinite fail-safe autoretry - essential for imaging radar and domain controller applications demanding highest functional safety assurance.
Availability
MC33FS8530A0KS is available at Aetrix Electronics and suitable for radar sensor modules, ADAS domain controllers, and automotive vision systems requiring stable component supply, long-term automotive qualification, and ASIL D–certified power management.
Supply support for MC33FS8530A0KS 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 markets, with leadership in automotive processors and power management ICs.
The MC33FS8530A0KS belongs to NXP's FS85 family of fail-safe system basis chips, designed specifically to consolidate power delivery, functional safety monitoring, and communication interfaces in next-generation radar, vision, and ADAS domain controller systems.
FAQ
What is the maximum input voltage supported by the MC33FS8530A0KS?
The MC33FS8530A0KS supports a maximum input voltage of 60 V DC, enabling direct connection to 12 V and 24 V automotive battery rails. External reverse-battery protection diodes are mandatory on VSUP1 and VSUP2 pins per the datasheet requirements.
Does the MC33FS8530A0KS support both SPI and I²C interfaces?
Yes, the MC33FS8530A0KS supports both 32-bit SPI and I²C interfaces with CRC protection. Its I²C address is fixed at 0x20, and it allows full configuration, monitoring, and safety register access through either protocol - enabling flexible integration with diverse MCU platforms.
How does the fail-safe output (FS0B) behave during a fault condition?
During any detected fault (e.g., overvoltage, thermal shutdown, watchdog timeout), the MC33FS8530A0KS asserts its open-drain FS0B pin low. This signal remains active until the fail-safe state machine completes recovery - supporting infinite autoretry cycles unless disabled via OTP configuration.
Can the MC33FS8530A0KS synchronize switching frequencies with other power ICs?
Yes, the MC33FS8530A0KS supports system-level EMC optimization via dedicated FIN (frequency sync input) and FOUT (frequency sync output) pins. It can lock its internal SMPS clocks to an external master or drive downstream converters, reducing spectral peaks in radar and ADAS applications.
What is the role of the PSYNC pin on the MC33FS8530A0KS?
The PSYNC pin on the MC33FS8530A0KS enables coordinated power sequencing between two MC33FS8530A0KS devices or between one MC33FS8530A0KS and an external PMIC. It operates as bidirectional I/O to align startup timing and prevent inrush current stacking during system power-up.
MC33FS8530A0KS 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 56-HVQFN (8x8)
MC33FS8530A0KS FAQ
1.How can I place an order for MC33FS8530A0KS through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33FS8530A0KS 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 MC33FS8530A0KS reliable?
The price and inventory of MC33FS8530A0KS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33FS8530A0KS is usually 5 days.
3.What payment methods are accepted for MC33FS8530A0KS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33FS8530A0KS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33FS8530A0KS?
MC33FS8530A0KS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33FS8530A0KS 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 MC33FS8530A0KS?
For technical support, including MC33FS8530A0KS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33FS8530A0KS requirements.
6.How does Aetrix verify that MC33FS8530A0KS is sourced from the original manufacturer or authorized distributors?
All MC33FS8530A0KS 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 MC33FS8530A0KS meets industry standards.
7.What is the process for return or replacement of MC33FS8530A0KS?
All MC33FS8530A0KS units undergo pre-shipment inspection (PSI). If there is an issue with MC33FS8530A0KS, 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 MC33FS8530A0KS part is unused and in its original packaging.
Return procedure for MC33FS8530A0KS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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